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llvm / llvm / 3e5185e268379d97349da0f246ab8b3f88841e08 / . / test / Transforms / LoopIdiom / bcmp-basic.ll
blob: f3b18e9c756279dac5830738e9744362d32f0efa [file] [log] [blame]
; 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
}