| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -loop-idiom -verify -verify-each -verify-dom-info -verify-loop-info < %s -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| |
| ; This only tests various forms of loop control-flow. |
| ; These tests are fully identical to bcmp()==0 otherwise. |
| |
| ; #include <algorithm> |
| ; |
| ; bool pointer_iteration_const_size_no_overlap(char const* ptr) { |
| ; return std::equal(ptr, ptr + 8, ptr + 8); |
| ; } |
| ; bool pointer_iteration_const_size_partial_overlap(char const* ptr) { |
| ; return std::equal(ptr, ptr + 16, ptr + 8); |
| ; } |
| ; bool pointer_iteration_const_size_overlap_unknown(char const* ptr0, char const* ptr1) { |
| ; return std::equal(ptr0, ptr0 + 8, ptr1); |
| ; } |
| ; |
| ; bool pointer_iteration_variable_size_no_overlap(char const* ptr, size_t count) { |
| ; return std::equal(ptr, ptr + count, ptr + count); |
| ; } |
| ; bool pointer_iteration_variable_size_partial_overlap(char const* ptr, size_t count) { |
| ; return std::equal(ptr, ptr + 2 * count, ptr + count); |
| ; } |
| ; bool pointer_iteration_variable_size_overlap_unknown(char const* ptr0, char const* ptr1, size_t count) { |
| ; return std::equal(ptr0, ptr0 + count, ptr1); |
| ; } |
| ; |
| ; bool index_iteration_eq_const_size_no_overlap(char const* ptr) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + 8; |
| ; for(size_t i = 0; i < 8; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool index_iteration_eq_const_size_partial_overlap(char const* ptr) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + 8; |
| ; for(size_t i = 0; i < 16; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool index_iteration_eq_const_size_overlap_unknown(char const* ptr0, char const* ptr1) { |
| ; for(size_t i = 0; i < 8; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool index_iteration_eq_variable_size_no_overlap(char const* ptr, size_t count) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + count; |
| ; for(size_t i = 0; i < count; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool index_iteration_eq_variable_size_partial_overlap(char const* ptr, size_t count) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + count; |
| ; for(size_t i = 0; i < 2 * count; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool index_iteration_eq_variable_size_overlap_unknown(char const* ptr0, char const* ptr1, size_t count) { |
| ; for(size_t i = 0; i < count; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool index_iteration_starting_from_negative(char const* ptr0, char const* ptr1) { |
| ; for(int i = -4; i < 4; i++) { |
| ; if(ptr0[i] != ptr1[i]) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool combined_iteration_eq_const_size_no_overlap(char const* ptr) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + 8; |
| ; for(size_t i = 0; i < 8; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool combined_iteration_eq_const_size_partial_overlap(char const* ptr) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + 8; |
| ; for(size_t i = 0; i < 16; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool combined_iteration_eq_const_size_overlap_unknown(char const* ptr0, char const* ptr1) { |
| ; for(size_t i = 0; i < 8; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool combined_iteration_eq_variable_size_no_overlap(char const* ptr, size_t count) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + count; |
| ; for(size_t i = 0; i < count; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool combined_iteration_eq_variable_size_partial_overlap(char const* ptr, size_t count) { |
| ; char const* ptr0 = ptr; |
| ; char const* ptr1 = ptr + count; |
| ; for(size_t i = 0; i < 2 * count; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; bool combined_iteration_eq_variable_size_overlap_unknown(char const* ptr0, char const* ptr1, size_t count) { |
| ; for(size_t i = 0; i < count; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool negated_pointer_iteration_variable_size_overlap_unknown(char const* ptr0, char const* ptr1, size_t count) { |
| ; return !std::equal(ptr0, ptr0 + count, ptr1); |
| ; } |
| ; |
| ; bool integer_pointer_iteration_variable_size_overlap_unknown(int const* ptr0, int const* ptr1, size_t count) { |
| ; return std::equal(ptr0, ptr0 + count, ptr1); |
| ; } |
| ; |
| ; bool small_index_iteration(char const* ptr0, char const* ptr1, int count) { |
| ; for(int i = 0; i < count; i++, ++ptr0, ++ptr1) { |
| ; if(*ptr0 != *ptr1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; bool three_pointer_iteration(char const* ptr0, char const* ptr0_end, char const* ptr1) { |
| ; return std::equal(ptr0, ptr0_end, ptr1); |
| ; } |
| ; |
| ; int value_propagation(char const* ptr0, char const* ptr1, size_t count, int on_equal, int on_unequal) { |
| ; if(std::equal(ptr0, ptr0 + count, ptr1)) |
| ; return on_equal; |
| ; return on_unequal; |
| ; } |
| ; |
| ; void callee_on_unequal(); |
| ; void callee_on_success(); |
| ; void multiple_exit_blocks(char const* ptr0, char const* ptr1, size_t count) { |
| ; if(!std::equal(ptr0, ptr0 + count, ptr1)) { |
| ; callee_on_unequal(); |
| ; return; |
| ; } |
| ; callee_on_success(); |
| ; } |
| ; |
| ; void multiple_phis(char const* ptr0, char const* ptr1, size_t count, char const* v0, char const* v1, char const* v2, char const* v3, char const** out0, char const** out1) { |
| ; char const *o0, *o1; |
| ; if(std::equal(ptr0, ptr0 + count, ptr1)) { |
| ; o0 = v0; |
| ; o1 = v1; |
| ; } else { |
| ; o0 = v2; |
| ; o1 = v3; |
| ; } |
| ; *out0 = o0; |
| ; *out1 = o1; |
| ; } |
| ; |
| ; void sink(bool); |
| ; void loop_within_loop(size_t outer_count, char const** ptr0, char const** ptr1, size_t* count) { |
| ; for(size_t i = 0; i != outer_count; ++i) |
| ; sink(std::equal(ptr0[i], ptr0[i] + count[i], ptr1[i])); |
| ; } |
| ; |
| ; void loop_within_loop_with_multiple_exit_blocks(size_t outer_count, char const** ptr0, char const** ptr1, size_t* count) { |
| ; for(size_t i = 0; i != outer_count; ++i) { |
| ; if(!std::equal(ptr0[i], ptr0[i] + count[i], ptr1[i])) { |
| ; callee_on_unequal(); |
| ; return; |
| ; } |
| ; callee_on_success(); |
| ; } |
| ; } |
| ; |
| ; void endless_loop_if_equal(int *a, int *b) { |
| ; for (;;) { |
| ; for (int c = 0; c < 4; c++) { |
| ; if (a[c] != b[c]) |
| ; return; |
| ; } |
| ; } |
| ; } |
| ; |
| ; bool load_of_bitcasts(char const* ptr0, float const* ptr1, size_t count) { |
| ; for(size_t i = 0; i < count; i++, ptr0 += sizeof(float), ptr1++) { |
| ; int v0, v1; |
| ; memcpy(&v0, ptr0, sizeof(float)); |
| ; memcpy(&v1, ptr1, sizeof(float)); |
| ; if(v0 != v1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| ; |
| ; // FIXME |
| ; bool overlapping_loads(char const* ptr0, char const* ptr1, size_t count) { |
| ; for(size_t i = 0; i < count; i++, ptr0++, ptr1++) { |
| ; int v0, v1; |
| ; memcpy(&v0, ptr0, sizeof(float)); |
| ; memcpy(&v1, ptr1, sizeof(float)); |
| ; if(v0 != v1) |
| ; return false; |
| ; } |
| ; return true; |
| ; } |
| |
| define i1 @_Z39pointer_iteration_const_size_no_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z39pointer_iteration_const_size_no_overlapPKc( |
| ; CHECK-NEXT: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 8) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.inc.i.i, %entry |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %add.ptr, %entry ] |
| %__first1.addr.06.i.i.idx = phi i64 [ %__first1.addr.06.i.i.add, %for.inc.i.i ], [ 0, %entry ] |
| %__first1.addr.06.i.i.ptr = getelementptr inbounds i8, i8* %ptr, i64 %__first1.addr.06.i.i.idx |
| %v0 = load i8, i8* %__first1.addr.06.i.i.ptr |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %__first1.addr.06.i.i.add = add nuw nsw i64 %__first1.addr.06.i.i.idx, 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i64 %__first1.addr.06.i.i.add, 8 |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i |
| %retval.0.i.i = phi i1 [ false, %for.body.i.i ], [ true, %for.inc.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z44pointer_iteration_const_size_partial_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z44pointer_iteration_const_size_partial_overlapPKc( |
| ; CHECK-NEXT: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR1:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR1]], i64 16) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR1_EQCMP]], label [[PTR_VS_ADD_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr1 = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.inc.i.i, %entry |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %add.ptr1, %entry ] |
| %__first1.addr.06.i.i.idx = phi i64 [ %__first1.addr.06.i.i.add, %for.inc.i.i ], [ 0, %entry ] |
| %__first1.addr.06.i.i.ptr = getelementptr inbounds i8, i8* %ptr, i64 %__first1.addr.06.i.i.idx |
| %v0 = load i8, i8* %__first1.addr.06.i.i.ptr |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %__first1.addr.06.i.i.add = add nuw nsw i64 %__first1.addr.06.i.i.idx, 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i64 %__first1.addr.06.i.i.add, 16 |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i |
| %retval.0.i.i = phi i1 [ false, %for.body.i.i ], [ true, %for.inc.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z44pointer_iteration_const_size_overlap_unknownPKcS0_(i8* %ptr0, i8* %ptr1) { |
| ; CHECK-LABEL: @_Z44pointer_iteration_const_size_overlap_unknownPKcS0_( |
| ; CHECK-NEXT: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 8) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.inc.i.i, %entry |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i.idx = phi i64 [ %__first1.addr.06.i.i.add, %for.inc.i.i ], [ 0, %entry ] |
| %__first1.addr.06.i.i.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %__first1.addr.06.i.i.idx |
| %v0 = load i8, i8* %__first1.addr.06.i.i.ptr |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %__first1.addr.06.i.i.add = add nuw nsw i64 %__first1.addr.06.i.i.idx, 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i64 %__first1.addr.06.i.i.add, 8 |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i |
| %retval.0.i.i = phi i1 [ false, %for.body.i.i ], [ true, %for.inc.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z42pointer_iteration_variable_size_no_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z42pointer_iteration_variable_size_no_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %add.ptr, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr, %entry ] |
| %v0 = load i8, i8* %__first1.addr.06.i.i |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ true, %entry ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z47pointer_iteration_variable_size_partial_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z47pointer_iteration_variable_size_partial_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[MUL_BYTECOUNT:%.*]] = shl i64 [[COUNT:%.*]], 1 |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[MUL_BYTECOUNT]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[MUL_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR1:%.*]] = getelementptr inbounds i8, i8* [[PTR]], i64 [[COUNT]] |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR1]], i64 [[MUL_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR1_EQCMP]], label [[PTR_VS_ADD_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %mul = shl i64 %count, 1 |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %mul |
| %cmp5.i.i = icmp eq i64 %mul, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i.preheader |
| |
| for.body.i.i.preheader: ; preds = %entry |
| %add.ptr1 = getelementptr inbounds i8, i8* %ptr, i64 %count |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.body.i.i.preheader, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %add.ptr1, %for.body.i.i.preheader ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr, %for.body.i.i.preheader ] |
| %v0 = load i8, i8* %__first1.addr.06.i.i |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ true, %entry ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z47pointer_iteration_variable_size_overlap_unknownPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z47pointer_iteration_variable_size_overlap_unknownPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR0:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %v0 = load i8, i8* %__first1.addr.06.i.i |
| %v1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %v0, %v1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ true, %entry ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z40index_iteration_eq_const_size_no_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z40index_iteration_eq_const_size_no_overlapPKc( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 8) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, 8 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.013 = phi i64 [ 0, %entry ], [ %inc, %for.cond ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr, i64 %i.013 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %add.ptr, i64 %i.013 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw nsw i64 %i.013, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.cond, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.cond ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z45index_iteration_eq_const_size_partial_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z45index_iteration_eq_const_size_partial_overlapPKc( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 16) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, 16 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.013 = phi i64 [ 0, %entry ], [ %inc, %for.cond ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr, i64 %i.013 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %add.ptr, i64 %i.013 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw nsw i64 %i.013, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.cond, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.cond ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z45index_iteration_eq_const_size_overlap_unknownPKcS0_(i8* %ptr0, i8* %ptr1) { |
| ; CHECK-LABEL: @_Z45index_iteration_eq_const_size_overlap_unknownPKcS0_( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 8) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| br label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, 8 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.08 = phi i64 [ 0, %entry ], [ %inc, %for.cond ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr0, i64 %i.08 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %ptr1, i64 %i.08 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw nsw i64 %i.08, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.cond, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.cond ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z43index_iteration_eq_variable_size_no_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z43index_iteration_eq_variable_size_no_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP14:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP14]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %count |
| %cmp14 = icmp eq i64 %count, 0 |
| br i1 %cmp14, label %cleanup, label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.015 = phi i64 [ %inc, %for.cond ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr, i64 %i.015 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %add.ptr, i64 %i.015 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw i64 %i.015, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.cond, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.cond ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z48index_iteration_eq_variable_size_partial_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z48index_iteration_eq_variable_size_partial_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[COUNT:%.*]] |
| ; CHECK-NEXT: [[MUL_BYTECOUNT:%.*]] = shl i64 [[COUNT]], 1 |
| ; CHECK-NEXT: [[CMP14:%.*]] = icmp eq i64 [[MUL_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP14]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 [[MUL_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %count |
| %mul = shl i64 %count, 1 |
| %cmp14 = icmp eq i64 %mul, 0 |
| br i1 %cmp14, label %cleanup, label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, %mul |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.015 = phi i64 [ %inc, %for.cond ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr, i64 %i.015 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %add.ptr, i64 %i.015 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw i64 %i.015, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.cond, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.cond ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z48index_iteration_eq_variable_size_overlap_unknownPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z48index_iteration_eq_variable_size_overlap_unknownPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP8:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP8]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %cmp8 = icmp eq i64 %count, 0 |
| br i1 %cmp8, label %cleanup, label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.09 = phi i64 [ %inc, %for.cond ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr0, i64 %i.09 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %ptr1, i64 %i.09 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw i64 %i.09, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.cond, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.cond ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z38index_iteration_starting_from_negativePKcS0_(i8* %ptr0, i8* %ptr1) { |
| ; CHECK-LABEL: @_Z38index_iteration_starting_from_negativePKcS0_( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PTR0:%.*]], i64 -4 |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, i8* [[PTR1:%.*]], i64 -4 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[SCEVGEP]], i8* [[SCEVGEP1]], i64 8) |
| ; CHECK-NEXT: [[SCEVGEP_VS_SCEVGEP1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[SCEVGEP_VS_SCEVGEP1_EQCMP]], label [[SCEVGEP_VS_SCEVGEP1_EQCMP_EQUALBB:%.*]], label [[SCEVGEP_VS_SCEVGEP1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: scevgep.vs.scevgep1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: scevgep.vs.scevgep1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RET:%.*]] = phi i1 [ false, [[SCEVGEP_VS_SCEVGEP1_EQCMP_UNEQUALBB]] ], [ true, [[SCEVGEP_VS_SCEVGEP1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RET]] |
| ; |
| entry: |
| br label %for.body |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp slt i64 %indvars.iv.next, 4 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %indvars.iv = phi i64 [ -4, %entry ], [ %indvars.iv.next, %for.cond ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr0, i64 %indvars.iv |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx2 = getelementptr inbounds i8, i8* %ptr1, i64 %indvars.iv |
| %v1 = load i8, i8* %arrayidx2 |
| %cmp4 = icmp eq i8 %v0, %v1 |
| %indvars.iv.next = add nsw i64 %indvars.iv, 1 |
| br i1 %cmp4, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.cond, %for.body |
| %ret = phi i1 [ false, %for.body ], [ true, %for.cond ] |
| ret i1 %ret |
| } |
| |
| define i1 @_Z43combined_iteration_eq_const_size_no_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z43combined_iteration_eq_const_size_no_overlapPKc( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 8) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %i.015 = phi i64 [ 0, %entry ], [ %inc, %for.inc ] |
| %ptr1.014 = phi i8* [ %add.ptr, %entry ], [ %incdec.ptr3, %for.inc ] |
| %ptr0.013 = phi i8* [ %ptr, %entry ], [ %incdec.ptr, %for.inc ] |
| %v0 = load i8, i8* %ptr0.013 |
| %v1 = load i8, i8* %ptr1.014 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw nsw i64 %i.015, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.013, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.014, i64 1 |
| %cmp = icmp ult i64 %inc, 8 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.inc, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.inc ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z48combined_iteration_eq_const_size_partial_overlapPKc(i8* %ptr) { |
| ; CHECK-LABEL: @_Z48combined_iteration_eq_const_size_partial_overlapPKc( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 8 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 16) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 8 |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %i.015 = phi i64 [ 0, %entry ], [ %inc, %for.inc ] |
| %ptr1.014 = phi i8* [ %add.ptr, %entry ], [ %incdec.ptr3, %for.inc ] |
| %ptr0.013 = phi i8* [ %ptr, %entry ], [ %incdec.ptr, %for.inc ] |
| %v0 = load i8, i8* %ptr0.013 |
| %v1 = load i8, i8* %ptr1.014 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw nsw i64 %i.015, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.013, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.014, i64 1 |
| %cmp = icmp ult i64 %inc, 16 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.inc, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.inc ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z48combined_iteration_eq_const_size_overlap_unknownPKcS0_(i8* %ptr0, i8* %ptr1) { |
| ; CHECK-LABEL: @_Z48combined_iteration_eq_const_size_overlap_unknownPKcS0_( |
| ; CHECK-NEXT: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 8) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %i.010 = phi i64 [ 0, %entry ], [ %inc, %for.inc ] |
| %ptr1.addr.09 = phi i8* [ %ptr1, %entry ], [ %incdec.ptr3, %for.inc ] |
| %ptr0.addr.08 = phi i8* [ %ptr0, %entry ], [ %incdec.ptr, %for.inc ] |
| %v0 = load i8, i8* %ptr0.addr.08 |
| %v1 = load i8, i8* %ptr1.addr.09 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw nsw i64 %i.010, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.addr.08, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.addr.09, i64 1 |
| %cmp = icmp ult i64 %inc, 8 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.inc, %for.body |
| %res = phi i1 [ false, %for.body ], [ true, %for.inc ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z46combined_iteration_eq_variable_size_no_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z46combined_iteration_eq_variable_size_no_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP14:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP14]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[COUNT_BYTECOUNT]] |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %cmp14 = icmp eq i64 %count, 0 |
| br i1 %cmp14, label %cleanup, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %count |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.inc |
| %i.017 = phi i64 [ %inc, %for.inc ], [ 0, %for.body.preheader ] |
| %ptr1.016 = phi i8* [ %incdec.ptr3, %for.inc ], [ %add.ptr, %for.body.preheader ] |
| %ptr0.015 = phi i8* [ %incdec.ptr, %for.inc ], [ %ptr, %for.body.preheader ] |
| %v0 = load i8, i8* %ptr0.015 |
| %v1 = load i8, i8* %ptr1.016 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw i64 %i.017, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.015, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.016, i64 1 |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.inc, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z51combined_iteration_eq_variable_size_partial_overlapPKcm(i8* %ptr, i64 %count) { |
| ; CHECK-LABEL: @_Z51combined_iteration_eq_variable_size_partial_overlapPKcm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[MUL_BYTECOUNT:%.*]] = shl i64 [[COUNT:%.*]], 1 |
| ; CHECK-NEXT: [[CMP14:%.*]] = icmp eq i64 [[MUL_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP14]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[COUNT]] |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR]], i8* [[ADD_PTR]], i64 [[MUL_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR_VS_ADD_PTR_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR_VS_ADD_PTR_EQCMP]], label [[PTR_VS_ADD_PTR_EQCMP_EQUALBB:%.*]], label [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr.vs.add.ptr.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR_VS_ADD_PTR_EQCMP_UNEQUALBB]] ], [ true, [[PTR_VS_ADD_PTR_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %mul = shl i64 %count, 1 |
| %cmp14 = icmp eq i64 %mul, 0 |
| br i1 %cmp14, label %cleanup, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| %add.ptr = getelementptr inbounds i8, i8* %ptr, i64 %count |
| br label %for.body |
| |
| for.body: ; preds = %for.body.preheader, %for.inc |
| %i.017 = phi i64 [ %inc, %for.inc ], [ 0, %for.body.preheader ] |
| %ptr1.016 = phi i8* [ %incdec.ptr3, %for.inc ], [ %add.ptr, %for.body.preheader ] |
| %ptr0.015 = phi i8* [ %incdec.ptr, %for.inc ], [ %ptr, %for.body.preheader ] |
| %v0 = load i8, i8* %ptr0.015 |
| %v1 = load i8, i8* %ptr1.016 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw i64 %i.017, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.015, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.016, i64 1 |
| %cmp = icmp ult i64 %inc, %mul |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.inc, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z51combined_iteration_eq_variable_size_overlap_unknownPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z51combined_iteration_eq_variable_size_overlap_unknownPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP8:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP8]], label [[CLEANUP:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %cmp8 = icmp eq i64 %count, 0 |
| br i1 %cmp8, label %cleanup, label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %i.011 = phi i64 [ %inc, %for.inc ], [ 0, %entry ] |
| %ptr1.addr.010 = phi i8* [ %incdec.ptr3, %for.inc ], [ %ptr1, %entry ] |
| %ptr0.addr.09 = phi i8* [ %incdec.ptr, %for.inc ], [ %ptr0, %entry ] |
| %v0 = load i8, i8* %ptr0.addr.09 |
| %v1 = load i8, i8* %ptr1.addr.010 |
| %cmp2 = icmp eq i8 %v0, %v1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw i64 %i.011, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.addr.09, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.addr.010, i64 1 |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.inc, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @_Z55negated_pointer_iteration_variable_size_overlap_unknownPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z55negated_pointer_iteration_variable_size_overlap_unknownPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR0:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ true, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ false, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %__first1.addr.06.i.i |
| %t1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ false, %entry ], [ false, %for.inc.i.i ], [ true, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z55integer_pointer_iteration_variable_size_overlap_unknownPKiS0_m(i32* %ptr0, i32* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z55integer_pointer_iteration_variable_size_overlap_unknownPKiS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i32, i32* [[PTR0:%.*]], i64 [[COUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKIS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl nsw i64 [[COUNT]], 2 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], -4 |
| ; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP2]], 2 |
| ; CHECK-NEXT: [[DOTBYTECOUNT:%.*]] = add i64 [[TMP3]], 4 |
| ; CHECK-NEXT: [[CSTR:%.*]] = bitcast i32* [[PTR0]] to i8* |
| ; CHECK-NEXT: [[CSTR1:%.*]] = bitcast i32* [[PTR1:%.*]] to i8* |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 [[DOTBYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKIS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKIS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKIS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKIS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i32, i32* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i32* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i32* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i32, i32* %__first1.addr.06.i.i |
| %t1 = load i32, i32* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i32 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i32, i32* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i32, i32* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i32* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKiS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ true, %entry ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i1 @_Z21small_index_iterationPKcS0_i(i8* %ptr0, i8* %ptr1, i32 %count) { |
| ; CHECK-LABEL: @_Z21small_index_iterationPKcS0_i( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP8:%.*]] = icmp sgt i32 [[COUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP8]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]], label [[CLEANUP:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[DOTBYTECOUNT:%.*]] = zext i32 [[COUNT]] to i64 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 [[DOTBYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[T2_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[T2:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[T2_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[T2]] |
| ; |
| entry: |
| %cmp8 = icmp sgt i32 %count, 0 |
| br i1 %cmp8, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.inc |
| %i.011 = phi i32 [ %inc, %for.inc ], [ 0, %entry ] |
| %ptr1.addr.010 = phi i8* [ %incdec.ptr3, %for.inc ], [ %ptr1, %entry ] |
| %ptr0.addr.09 = phi i8* [ %incdec.ptr, %for.inc ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %ptr0.addr.09 |
| %t1 = load i8, i8* %ptr1.addr.010 |
| %cmp2 = icmp eq i8 %t0, %t1 |
| br i1 %cmp2, label %for.inc, label %cleanup |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw nsw i32 %i.011, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.addr.09, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.addr.010, i64 1 |
| %cmp = icmp slt i32 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.inc, %entry |
| %t2 = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %t2 |
| } |
| |
| define i1 @_Z23three_pointer_iterationPKcS0_S0_(i8* %ptr0, i8* %ptr0_end, i8* %ptr1) { |
| ; CHECK-LABEL: @_Z23three_pointer_iterationPKcS0_S0_( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[PTR01:%.*]] = ptrtoint i8* [[PTR0:%.*]] to i64 |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i8* [[PTR0]], [[PTR0_END:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[TMP0:%.*]] = sub i64 0, [[PTR01]] |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PTR0_END]], i64 [[TMP0]] |
| ; CHECK-NEXT: [[DOTBYTECOUNT:%.*]] = ptrtoint i8* [[SCEVGEP]] to i64 |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[DOTBYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RETVAL_0_I_I]] |
| ; |
| entry: |
| %cmp5.i.i = icmp eq i8* %ptr0, %ptr0_end |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %__first1.addr.06.i.i |
| %t1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %ptr0_end |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %entry |
| %retval.0.i.i = phi i1 [ true, %entry ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| ret i1 %retval.0.i.i |
| } |
| |
| define i32 @_Z17value_propagationPKcS0_mii(i8* %ptr0, i8* %ptr1, i64 %count, i32 %on_equal, i32 %on_unequal) { |
| ; CHECK-LABEL: @_Z17value_propagationPKcS0_mii( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR0:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[T2_PH:%.*]] = phi i32 [ [[ON_UNEQUAL:%.*]], [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ [[ON_EQUAL:%.*]], [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[T2:%.*]] = phi i32 [ [[ON_EQUAL]], [[ENTRY:%.*]] ], [ [[T2_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i32 [[T2]] |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %__first1.addr.06.i.i |
| %t1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.inc.i.i, %for.body.i.i, %entry |
| %t2 = phi i32 [ %on_equal, %entry ], [ %on_equal, %for.inc.i.i ], [ %on_unequal, %for.body.i.i ] |
| ret i32 %t2 |
| } |
| |
| define void @_Z20multiple_exit_blocksPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z20multiple_exit_blocksPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR0:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[IF_END:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[IF_END_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[IF_THEN:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: tail call void @_Z17callee_on_unequalv() |
| ; CHECK-NEXT: br label [[RETURN:%.*]] |
| ; CHECK: if.end.loopexit: |
| ; CHECK-NEXT: br label [[IF_END]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: tail call void @_Z17callee_on_successv() |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %if.end, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %__first1.addr.06.i.i |
| %t1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %if.then |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %if.end, label %for.body.i.i |
| |
| if.then: ; preds = %for.body.i.i |
| tail call void @_Z17callee_on_unequalv() |
| br label %return |
| |
| if.end: ; preds = %for.inc.i.i, %entry |
| tail call void @_Z17callee_on_successv() |
| br label %return |
| |
| return: ; preds = %if.end, %if.then |
| ret void |
| } |
| declare void @_Z17callee_on_unequalv() |
| declare void @_Z17callee_on_successv() |
| |
| define void @_Z13multiple_phisPKcS0_mS0_S0_S0_S0_PS0_S1_(i8* %ptr0, i8* %ptr1, i64 %count, i8* %v0, i8* %v1, i8* %v2, i8* %v3, i8** %out0, i8** %out1) { |
| ; CHECK-LABEL: @_Z13multiple_phisPKcS0_mS0_S0_S0_S0_PS0_S1_( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[PTR0:%.*]], i64 [[COUNT_BYTECOUNT:%.*]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[COUNT_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0]], i8* [[PTR1:%.*]], i64 [[COUNT_BYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[T2_PH:%.*]] = phi i8* [ [[V2:%.*]], [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ [[V0:%.*]], [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: [[T3_PH:%.*]] = phi i8* [ [[V3:%.*]], [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ [[V1:%.*]], [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[T2:%.*]] = phi i8* [ [[V0]], [[ENTRY:%.*]] ], [ [[T2_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: [[T3:%.*]] = phi i8* [ [[V1]], [[ENTRY]] ], [ [[T3_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: store i8* [[T2]], i8** [[OUT0:%.*]] |
| ; CHECK-NEXT: store i8* [[T3]], i8** [[OUT1:%.*]] |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0, i64 %count |
| %cmp5.i.i = icmp eq i64 %count, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %entry, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %ptr1, %entry ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %ptr0, %entry ] |
| %t0 = load i8, i8* %__first1.addr.06.i.i |
| %t1 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t0, %t1 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.inc.i.i, %for.body.i.i, %entry |
| %t2 = phi i8* [ %v0, %entry ], [ %v0, %for.inc.i.i ], [ %v2, %for.body.i.i ] |
| %t3 = phi i8* [ %v1, %entry ], [ %v1, %for.inc.i.i ], [ %v3, %for.body.i.i ] |
| store i8* %t2, i8** %out0 |
| store i8* %t3, i8** %out1 |
| ret void |
| } |
| |
| define void @_Z16loop_within_loopmPPKcS1_Pm(i64 %outer_count, i8** %ptr0, i8** %ptr1, i64* %count) { |
| ; CHECK-LABEL: @_Z16loop_within_loopmPPKcS1_Pm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP11:%.*]] = icmp eq i64 [[OUTER_COUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP11]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_012:%.*]] = phi i64 [ [[INC:%.*]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT:%.*]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[PTR0:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[ARRAYIDX]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[COUNT:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T1_BYTECOUNT:%.*]] = load i64, i64* [[ARRAYIDX2]] |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[T1_BYTECOUNT]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[T1_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]], label [[FOR_BODY_I_I_PREHEADER:%.*]] |
| ; CHECK: for.body.i.i.preheader: |
| ; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds i8*, i8** [[PTR1:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[ARRAYIDX3]] |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[T0]], i8* [[T2]], i64 [[T1_BYTECOUNT]]) |
| ; CHECK-NEXT: [[T0_VS_T2_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: br i1 [[T0_VS_T2_EQCMP]], label [[T0_VS_T2_EQCMP_EQUALBB:%.*]], label [[T0_VS_T2_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: t0.vs.t2.eqcmp.equalbb: |
| ; CHECK-NEXT: br i1 true, label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB]] |
| ; CHECK: t0.vs.t2.eqcmp.unequalbb: |
| ; CHECK-NEXT: br i1 true, label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]], label [[FOR_BODY_I_I_BCMPDISPATCHBB]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit.loopexit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I_PH:%.*]] = phi i1 [ false, [[T0_VS_T2_EQCMP_UNEQUALBB]] ], [ true, [[T0_VS_T2_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT]] |
| ; CHECK: _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: |
| ; CHECK-NEXT: [[RETVAL_0_I_I:%.*]] = phi i1 [ true, [[FOR_BODY]] ], [ [[RETVAL_0_I_I_PH]], [[_ZNST3__15EQUALIPKCS2_EEBT_S3_T0__EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: tail call void @_Z4sinkb(i1 [[RETVAL_0_I_I]]) |
| ; CHECK-NEXT: [[INC]] = add nuw i64 [[I_012]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[INC]], [[OUTER_COUNT]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[FOR_BODY]] |
| ; |
| entry: |
| %cmp11 = icmp eq i64 %outer_count, 0 |
| br i1 %cmp11, label %for.cond.cleanup, label %for.body |
| |
| for.cond.cleanup: ; preds = %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, %entry |
| ret void |
| |
| for.body: ; preds = %entry, %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| %i.012 = phi i64 [ %inc, %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i8*, i8** %ptr0, i64 %i.012 |
| %t0 = load i8*, i8** %arrayidx |
| %arrayidx2 = getelementptr inbounds i64, i64* %count, i64 %i.012 |
| %t1 = load i64, i64* %arrayidx2 |
| %add.ptr = getelementptr inbounds i8, i8* %t0, i64 %t1 |
| %cmp5.i.i = icmp eq i64 %t1, 0 |
| br i1 %cmp5.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i.preheader |
| |
| for.body.i.i.preheader: ; preds = %for.body |
| %arrayidx3 = getelementptr inbounds i8*, i8** %ptr1, i64 %i.012 |
| %t2 = load i8*, i8** %arrayidx3 |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.body.i.i.preheader, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %t2, %for.body.i.i.preheader ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %t0, %for.body.i.i.preheader ] |
| %t3 = load i8, i8* %__first1.addr.06.i.i |
| %t4 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t3, %t4 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %_ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit, label %for.body.i.i |
| |
| _ZNSt3__15equalIPKcS2_EEbT_S3_T0_.exit: ; preds = %for.body.i.i, %for.inc.i.i, %for.body |
| %retval.0.i.i = phi i1 [ true, %for.body ], [ true, %for.inc.i.i ], [ false, %for.body.i.i ] |
| tail call void @_Z4sinkb(i1 %retval.0.i.i) |
| %inc = add nuw i64 %i.012, 1 |
| %cmp = icmp eq i64 %inc, %outer_count |
| br i1 %cmp, label %for.cond.cleanup, label %for.body |
| } |
| declare void @_Z4sinkb(i1) |
| |
| define void @_Z42loop_within_loop_with_multiple_exit_blocksmPPKcS1_Pm(i64 %outer_count, i8** %ptr0, i8** %ptr1, i64* %count) { |
| ; CHECK-LABEL: @_Z42loop_within_loop_with_multiple_exit_blocksmPPKcS1_Pm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP11:%.*]] = icmp eq i64 [[OUTER_COUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP11]], label [[CLEANUP:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_012:%.*]] = phi i64 [ [[INC:%.*]], [[IF_END:%.*]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[PTR0:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[ARRAYIDX]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[COUNT:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T1_BYTECOUNT:%.*]] = load i64, i64* [[ARRAYIDX2]] |
| ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[T1_BYTECOUNT]] |
| ; CHECK-NEXT: [[CMP5_I_I:%.*]] = icmp eq i64 [[T1_BYTECOUNT]], 0 |
| ; CHECK-NEXT: br i1 [[CMP5_I_I]], label [[IF_END]], label [[FOR_BODY_I_I_PREHEADER:%.*]] |
| ; CHECK: for.body.i.i.preheader: |
| ; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds i8*, i8** [[PTR1:%.*]], i64 [[I_012]] |
| ; CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[ARRAYIDX3]] |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[T0]], i8* [[T2]], i64 [[T1_BYTECOUNT]]) |
| ; CHECK-NEXT: [[T0_VS_T2_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br label [[FOR_BODY_I_I_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.i.i.bcmpdispatchbb: |
| ; CHECK-NEXT: br i1 [[T0_VS_T2_EQCMP]], label [[T0_VS_T2_EQCMP_EQUALBB:%.*]], label [[T0_VS_T2_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: t0.vs.t2.eqcmp.equalbb: |
| ; CHECK-NEXT: br i1 true, label [[IF_END_LOOPEXIT:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB]] |
| ; CHECK: t0.vs.t2.eqcmp.unequalbb: |
| ; CHECK-NEXT: br i1 true, label [[IF_THEN:%.*]], label [[FOR_BODY_I_I_BCMPDISPATCHBB]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: tail call void @_Z17callee_on_unequalv() |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: if.end.loopexit: |
| ; CHECK-NEXT: br label [[IF_END]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: tail call void @_Z17callee_on_successv() |
| ; CHECK-NEXT: [[INC]] = add nuw i64 [[I_012]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[INC]], [[OUTER_COUNT]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[CLEANUP_LOOPEXIT:%.*]], label [[FOR_BODY]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp11 = icmp eq i64 %outer_count, 0 |
| br i1 %cmp11, label %cleanup, label %for.body |
| |
| for.body: ; preds = %entry, %if.end |
| %i.012 = phi i64 [ %inc, %if.end ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i8*, i8** %ptr0, i64 %i.012 |
| %t0 = load i8*, i8** %arrayidx |
| %arrayidx2 = getelementptr inbounds i64, i64* %count, i64 %i.012 |
| %t1 = load i64, i64* %arrayidx2 |
| %add.ptr = getelementptr inbounds i8, i8* %t0, i64 %t1 |
| %cmp5.i.i = icmp eq i64 %t1, 0 |
| br i1 %cmp5.i.i, label %if.end, label %for.body.i.i.preheader |
| |
| for.body.i.i.preheader: ; preds = %for.body |
| %arrayidx3 = getelementptr inbounds i8*, i8** %ptr1, i64 %i.012 |
| %t2 = load i8*, i8** %arrayidx3 |
| br label %for.body.i.i |
| |
| for.body.i.i: ; preds = %for.body.i.i.preheader, %for.inc.i.i |
| %__first2.addr.07.i.i = phi i8* [ %incdec.ptr1.i.i, %for.inc.i.i ], [ %t2, %for.body.i.i.preheader ] |
| %__first1.addr.06.i.i = phi i8* [ %incdec.ptr.i.i, %for.inc.i.i ], [ %t0, %for.body.i.i.preheader ] |
| %t3 = load i8, i8* %__first1.addr.06.i.i |
| %t4 = load i8, i8* %__first2.addr.07.i.i |
| %cmp.i.i.i = icmp eq i8 %t3, %t4 |
| br i1 %cmp.i.i.i, label %for.inc.i.i, label %if.then |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %incdec.ptr.i.i = getelementptr inbounds i8, i8* %__first1.addr.06.i.i, i64 1 |
| %incdec.ptr1.i.i = getelementptr inbounds i8, i8* %__first2.addr.07.i.i, i64 1 |
| %cmp.i.i = icmp eq i8* %incdec.ptr.i.i, %add.ptr |
| br i1 %cmp.i.i, label %if.end, label %for.body.i.i |
| |
| if.then: ; preds = %for.body.i.i |
| tail call void @_Z17callee_on_unequalv() |
| br label %cleanup |
| |
| if.end: ; preds = %for.inc.i.i, %for.body |
| tail call void @_Z17callee_on_successv() |
| %inc = add nuw i64 %i.012, 1 |
| %cmp = icmp eq i64 %inc, %outer_count |
| br i1 %cmp, label %cleanup, label %for.body |
| |
| cleanup: ; preds = %if.end, %entry, %if.then |
| ret void |
| } |
| |
| define void @_Z21endless_loop_if_equalPiS_(i32* %a, i32* %b) { |
| ; CHECK-LABEL: @_Z21endless_loop_if_equalPiS_( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_COND:%.*]] |
| ; CHECK: for.cond.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND]] |
| ; CHECK: for.cond: |
| ; CHECK-NEXT: [[CSTR:%.*]] = bitcast i32* [[A:%.*]] to i8* |
| ; CHECK-NEXT: [[CSTR1:%.*]] = bitcast i32* [[B:%.*]] to i8* |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 16) |
| ; CHECK-NEXT: [[A_VS_B_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: br i1 [[A_VS_B_EQCMP]], label [[A_VS_B_EQCMP_EQUALBB:%.*]], label [[A_VS_B_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: a.vs.b.eqcmp.equalbb: |
| ; CHECK-NEXT: br i1 true, label [[FOR_COND_LOOPEXIT:%.*]], label [[FOR_BODY_BCMPDISPATCHBB]] |
| ; CHECK: a.vs.b.eqcmp.unequalbb: |
| ; CHECK-NEXT: br i1 true, label [[RETURN:%.*]], label [[FOR_BODY_BCMPDISPATCHBB]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %for.cond1, %entry |
| br label %for.body |
| |
| for.cond1: ; preds = %for.body |
| %cmp = icmp ult i64 %indvars.iv.next, 4 |
| br i1 %cmp, label %for.body, label %for.cond |
| |
| for.body: ; preds = %for.cond, %for.cond1 |
| %indvars.iv = phi i64 [ 0, %for.cond ], [ %indvars.iv.next, %for.cond1 ] |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx |
| %arrayidx3 = getelementptr inbounds i32, i32* %b, i64 %indvars.iv |
| %1 = load i32, i32* %arrayidx3 |
| %cmp4 = icmp eq i32 %0, %1 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| br i1 %cmp4, label %for.cond1, label %return |
| |
| return: ; preds = %for.body |
| ret void |
| } |
| |
| define i1 @_Z21load_of_bitcastsPKcPKfm(i8* %ptr0, float* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z21load_of_bitcastsPKcPKfm( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP13:%.*]] = icmp eq i64 [[COUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP13]], label [[CLEANUP3:%.*]], label [[FOR_BODY_BCMPDISPATCHBB:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[DOTBYTECOUNT:%.*]] = shl nuw i64 [[COUNT]], 2 |
| ; CHECK-NEXT: [[CSTR:%.*]] = bitcast float* [[PTR1:%.*]] to i8* |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[CSTR]], i64 [[DOTBYTECOUNT]]) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP3_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP3_LOOPEXIT]] |
| ; CHECK: cleanup3.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ], [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP3]] |
| ; CHECK: cleanup3: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP3_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %cmp13 = icmp eq i64 %count, 0 |
| br i1 %cmp13, label %cleanup3, label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %ptr0.addr.016 = phi i8* [ %add.ptr, %for.inc ], [ %ptr0, %entry ] |
| %i.015 = phi i64 [ %inc, %for.inc ], [ 0, %entry ] |
| %ptr1.addr.014 = phi float* [ %incdec.ptr, %for.inc ], [ %ptr1, %entry ] |
| %v0.0..sroa_cast = bitcast i8* %ptr0.addr.016 to i32* |
| %v0.0.copyload = load i32, i32* %v0.0..sroa_cast |
| %v1.0..sroa_cast = bitcast float* %ptr1.addr.014 to i32* |
| %v1.0.copyload = load i32, i32* %v1.0..sroa_cast |
| %cmp1 = icmp eq i32 %v0.0.copyload, %v1.0.copyload |
| br i1 %cmp1, label %for.inc, label %cleanup3 |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw i64 %i.015, 1 |
| %add.ptr = getelementptr inbounds i8, i8* %ptr0.addr.016, i64 4 |
| %incdec.ptr = getelementptr inbounds float, float* %ptr1.addr.014, i64 1 |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup3 |
| |
| cleanup3: ; preds = %for.body, %for.inc, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| ; FIXME |
| define i1 @_Z17overlapping_loadsPKcS0_m(i8* %ptr0, i8* %ptr1, i64 %count) { |
| ; CHECK-LABEL: @_Z17overlapping_loadsPKcS0_m( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP14:%.*]] = icmp eq i64 [[COUNT:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP14]], label [[CLEANUP4:%.*]], label [[FOR_BODY_PREHEADER:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[PTR0_ADDR_017:%.*]] = phi i8* [ [[INCDEC_PTR:%.*]], [[FOR_INC:%.*]] ], [ [[PTR0:%.*]], [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_016:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_INC]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[PTR1_ADDR_015:%.*]] = phi i8* [ [[INCDEC_PTR3:%.*]], [[FOR_INC]] ], [ [[PTR1:%.*]], [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[V0_0__SROA_CAST:%.*]] = bitcast i8* [[PTR0_ADDR_017]] to i32* |
| ; CHECK-NEXT: [[V0_0_COPYLOAD:%.*]] = load i32, i32* [[V0_0__SROA_CAST]] |
| ; CHECK-NEXT: [[V1_0__SROA_CAST:%.*]] = bitcast i8* [[PTR1_ADDR_015]] to i32* |
| ; CHECK-NEXT: [[V1_0_COPYLOAD:%.*]] = load i32, i32* [[V1_0__SROA_CAST]] |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[V0_0_COPYLOAD]], [[V1_0_COPYLOAD]] |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_INC]], label [[CLEANUP4_LOOPEXIT:%.*]] |
| ; CHECK: for.inc: |
| ; CHECK-NEXT: [[INC]] = add nuw i64 [[I_016]], 1 |
| ; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds i8, i8* [[PTR0_ADDR_017]], i64 1 |
| ; CHECK-NEXT: [[INCDEC_PTR3]] = getelementptr inbounds i8, i8* [[PTR1_ADDR_015]], i64 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[INC]], [[COUNT]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[CLEANUP4_LOOPEXIT]] |
| ; CHECK: cleanup4.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ false, [[FOR_BODY]] ], [ true, [[FOR_INC]] ] |
| ; CHECK-NEXT: br label [[CLEANUP4]] |
| ; CHECK: cleanup4: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP4_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| %cmp14 = icmp eq i64 %count, 0 |
| br i1 %cmp14, label %cleanup4, label %for.body |
| |
| for.body: ; preds = %entry, %for.inc |
| %ptr0.addr.017 = phi i8* [ %incdec.ptr, %for.inc ], [ %ptr0, %entry ] |
| %i.016 = phi i64 [ %inc, %for.inc ], [ 0, %entry ] |
| %ptr1.addr.015 = phi i8* [ %incdec.ptr3, %for.inc ], [ %ptr1, %entry ] |
| %v0.0..sroa_cast = bitcast i8* %ptr0.addr.017 to i32* |
| %v0.0.copyload = load i32, i32* %v0.0..sroa_cast |
| %v1.0..sroa_cast = bitcast i8* %ptr1.addr.015 to i32* |
| %v1.0.copyload = load i32, i32* %v1.0..sroa_cast |
| %cmp1 = icmp eq i32 %v0.0.copyload, %v1.0.copyload |
| br i1 %cmp1, label %for.inc, label %cleanup4 |
| |
| for.inc: ; preds = %for.body |
| %inc = add nuw i64 %i.016, 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr0.addr.017, i64 1 |
| %incdec.ptr3 = getelementptr inbounds i8, i8* %ptr1.addr.015, i64 1 |
| %cmp = icmp ult i64 %inc, %count |
| br i1 %cmp, label %for.body, label %cleanup4 |
| |
| cleanup4: ; preds = %for.body, %for.inc, %entry |
| %res = phi i1 [ true, %entry ], [ true, %for.inc ], [ false, %for.body ] |
| ret i1 %res |
| } |
| |
| define i1 @exit_block_is_not_dedicated(i8* %ptr0, i8* %ptr1) { |
| ; CHECK-LABEL: @exit_block_is_not_dedicated( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 true, label [[FOR_BODY_BCMPDISPATCHBB:%.*]], label [[CLEANUP:%.*]] |
| ; CHECK: for.body.bcmpdispatchbb: |
| ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[PTR0:%.*]], i8* [[PTR1:%.*]], i64 8) |
| ; CHECK-NEXT: [[PTR0_VS_PTR1_EQCMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
| ; CHECK-NEXT: br i1 [[PTR0_VS_PTR1_EQCMP]], label [[PTR0_VS_PTR1_EQCMP_EQUALBB:%.*]], label [[PTR0_VS_PTR1_EQCMP_UNEQUALBB:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.equalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: ptr0.vs.ptr1.eqcmp.unequalbb: |
| ; CHECK-NEXT: br label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[RES_PH:%.*]] = phi i1 [ true, [[PTR0_VS_PTR1_EQCMP_EQUALBB]] ], [ false, [[PTR0_VS_PTR1_EQCMP_UNEQUALBB]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ [[RES_PH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| br i1 true, label %for.body, label %cleanup |
| |
| for.body: |
| %i.08 = phi i64 [ 0, %entry ], [ %inc, %for.cond ] |
| %arrayidx = getelementptr inbounds i8, i8* %ptr0, i64 %i.08 |
| %v0 = load i8, i8* %arrayidx |
| %arrayidx1 = getelementptr inbounds i8, i8* %ptr1, i64 %i.08 |
| %v1 = load i8, i8* %arrayidx1 |
| %cmp3 = icmp eq i8 %v0, %v1 |
| %inc = add nuw nsw i64 %i.08, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| for.cond: |
| %cmp = icmp ult i64 %inc, 8 |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| cleanup: |
| %res = phi i1 [ false, %for.body ], [ true, %for.cond ], [ false, %entry ] |
| ret i1 %res |
| } |
| |
| ; With -m32: |
| ; int index_wider_than_pointer(int* a, int* b, long long num) { |
| ; for(long long i = 0; i < num; ++i) { |
| ; if(a[i] != b[i]) |
| ; return 1; |
| ; } |
| ; return 0; |
| ; } |
| define dso_local i64 @test(i64* %a, i64* %b, i128 %num) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP9:%.*]] = icmp sgt i128 [[NUM:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP9]], label [[FOR_BODY_PREHEADER:%.*]], label [[CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond: |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i128 [[INC:%.*]], [[NUM]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_010:%.*]] = phi i128 [ [[INC]], [[FOR_COND:%.*]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = trunc i128 [[I_010]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, i64* [[A:%.*]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i64, i64* [[ARRAYIDX]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[B:%.*]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load i64, i64* [[ARRAYIDX2]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i64 [[TMP0]], [[TMP1]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i128 [[I_010]], 1 |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_COND]], label [[CLEANUP_LOOPEXIT]] |
| ; CHECK: cleanup.loopexit: |
| ; CHECK-NEXT: [[DOTPH:%.*]] = phi i64 [ 1, [[FOR_BODY]] ], [ 0, [[FOR_COND]] ] |
| ; CHECK-NEXT: br label [[CLEANUP]] |
| ; CHECK: cleanup: |
| ; CHECK-NEXT: [[TMP2:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[DOTPH]], [[CLEANUP_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i64 [[TMP2]] |
| ; |
| entry: |
| %cmp9 = icmp sgt i128 %num, 0 |
| br i1 %cmp9, label %for.body, label %cleanup |
| |
| for.cond: ; preds = %for.body |
| %cmp = icmp slt i128 %inc, %num |
| br i1 %cmp, label %for.body, label %cleanup |
| |
| for.body: ; preds = %entry, %for.cond |
| %i.010 = phi i128 [ %inc, %for.cond ], [ 0, %entry ] |
| %idxprom = trunc i128 %i.010 to i64 |
| %arrayidx = getelementptr inbounds i64, i64* %a, i64 %idxprom |
| %0 = load i64, i64* %arrayidx |
| %arrayidx2 = getelementptr inbounds i64, i64* %b, i64 %idxprom |
| %1 = load i64, i64* %arrayidx2 |
| %cmp3 = icmp eq i64 %0, %1 |
| %inc = add nuw nsw i128 %i.010, 1 |
| br i1 %cmp3, label %for.cond, label %cleanup |
| |
| cleanup: ; preds = %for.body, %for.cond, %entry |
| %2 = phi i64 [ 0, %entry ], [ 0, %for.cond ], [ 1, %for.body ] |
| ret i64 %2 |
| } |