| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 |
| ; RUN: opt %s -S -passes='loop(loop-flatten),verify' -verify-loop-info -verify-dom-info -verify-scev -o - | FileCheck %s |
| |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| |
| ; We need to version the loop as the GEPs are not inbounds |
| define void @noinbounds_gep(i32 %N, ptr %A) { |
| ; CHECK-LABEL: define void @noinbounds_gep( |
| ; CHECK-SAME: i32 [[N:%.*]], ptr [[A:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 0, [[N]] |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_INNER_PREHEADER_LVER_CHECK:%.*]], label [[FOR_END:%.*]] |
| ; CHECK: for.inner.preheader.lver.check: |
| ; CHECK-NEXT: [[FLATTEN_MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 [[N]]) |
| ; CHECK-NEXT: [[FLATTEN_TRIPCOUNT:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 0 |
| ; CHECK-NEXT: [[FLATTEN_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 1 |
| ; CHECK-NEXT: br i1 [[FLATTEN_OVERFLOW]], label [[FOR_INNER_PREHEADER_PH_LVER_ORIG:%.*]], label [[FOR_INNER_PREHEADER_PH:%.*]] |
| ; CHECK: for.inner.preheader.ph.lver.orig: |
| ; CHECK-NEXT: br label [[FOR_INNER_PREHEADER_LVER_ORIG:%.*]] |
| ; CHECK: for.inner.preheader.lver.orig: |
| ; CHECK-NEXT: [[I_LVER_ORIG:%.*]] = phi i32 [ 0, [[FOR_INNER_PREHEADER_PH_LVER_ORIG]] ], [ [[INC2_LVER_ORIG:%.*]], [[FOR_OUTER_LVER_ORIG:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_INNER_LVER_ORIG:%.*]] |
| ; CHECK: for.inner.lver.orig: |
| ; CHECK-NEXT: [[J_LVER_ORIG:%.*]] = phi i32 [ 0, [[FOR_INNER_PREHEADER_LVER_ORIG]] ], [ [[INC1_LVER_ORIG:%.*]], [[FOR_INNER_LVER_ORIG]] ] |
| ; CHECK-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i32 [[I_LVER_ORIG]], [[N]] |
| ; CHECK-NEXT: [[GEP_LVER_ORIG:%.*]] = getelementptr i32, ptr [[A]], i32 [[MUL_LVER_ORIG]] |
| ; CHECK-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr i32, ptr [[GEP_LVER_ORIG]], i32 [[J_LVER_ORIG]] |
| ; CHECK-NEXT: store i32 0, ptr [[ARRAYIDX_LVER_ORIG]], align 4 |
| ; CHECK-NEXT: [[INC1_LVER_ORIG]] = add nuw i32 [[J_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[CMP2_LVER_ORIG:%.*]] = icmp ult i32 [[INC1_LVER_ORIG]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP2_LVER_ORIG]], label [[FOR_INNER_LVER_ORIG]], label [[FOR_OUTER_LVER_ORIG]] |
| ; CHECK: for.outer.lver.orig: |
| ; CHECK-NEXT: [[INC2_LVER_ORIG]] = add i32 [[I_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[CMP1_LVER_ORIG:%.*]] = icmp ult i32 [[INC2_LVER_ORIG]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP1_LVER_ORIG]], label [[FOR_INNER_PREHEADER_LVER_ORIG]], label [[FOR_END_LOOPEXIT_LOOPEXIT:%.*]] |
| ; CHECK: for.inner.preheader.ph: |
| ; CHECK-NEXT: br label [[FOR_INNER_PREHEADER:%.*]] |
| ; CHECK: for.inner.preheader: |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[FOR_INNER_PREHEADER_PH]] ], [ [[INC2:%.*]], [[FOR_OUTER:%.*]] ] |
| ; CHECK-NEXT: [[FLATTEN_ARRAYIDX:%.*]] = getelementptr i32, ptr [[A]], i32 [[I]] |
| ; CHECK-NEXT: br label [[FOR_INNER:%.*]] |
| ; CHECK: for.inner: |
| ; CHECK-NEXT: [[J:%.*]] = phi i32 [ 0, [[FOR_INNER_PREHEADER]] ] |
| ; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[I]], [[N]] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[A]], i32 [[MUL]] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i32, ptr [[GEP]], i32 [[J]] |
| ; CHECK-NEXT: store i32 0, ptr [[FLATTEN_ARRAYIDX]], align 4 |
| ; CHECK-NEXT: [[INC1:%.*]] = add nuw i32 [[J]], 1 |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[INC1]], [[N]] |
| ; CHECK-NEXT: br label [[FOR_OUTER]] |
| ; CHECK: for.outer: |
| ; CHECK-NEXT: [[INC2]] = add i32 [[I]], 1 |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[INC2]], [[FLATTEN_TRIPCOUNT]] |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_INNER_PREHEADER]], label [[FOR_END_LOOPEXIT_LOOPEXIT1:%.*]] |
| ; CHECK: for.end.loopexit.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit.loopexit1: |
| ; CHECK-NEXT: br label [[FOR_END_LOOPEXIT]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp3 = icmp ult i32 0, %N |
| br i1 %cmp3, label %for.outer.preheader, label %for.end |
| |
| for.outer.preheader: |
| br label %for.inner.preheader |
| |
| for.inner.preheader: |
| %i = phi i32 [ 0, %for.outer.preheader ], [ %inc2, %for.outer ] |
| br label %for.inner |
| |
| for.inner: |
| %j = phi i32 [ 0, %for.inner.preheader ], [ %inc1, %for.inner ] |
| %mul = mul i32 %i, %N |
| %gep = getelementptr i32, ptr %A, i32 %mul |
| %arrayidx = getelementptr i32, ptr %gep, i32 %j |
| store i32 0, ptr %arrayidx, align 4 |
| %inc1 = add nuw i32 %j, 1 |
| %cmp2 = icmp ult i32 %inc1, %N |
| br i1 %cmp2, label %for.inner, label %for.outer |
| |
| for.outer: |
| %inc2 = add i32 %i, 1 |
| %cmp1 = icmp ult i32 %inc2, %N |
| br i1 %cmp1, label %for.inner.preheader, label %for.end.loopexit |
| |
| for.end.loopexit: |
| br label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| ; We shouldn't version the loop here as the multiply would use an illegal type. |
| define void @noinbounds_gep_too_large_mul(i64 %N, ptr %A) { |
| ; CHECK-LABEL: define void @noinbounds_gep_too_large_mul( |
| ; CHECK-SAME: i64 [[N:%.*]], ptr [[A:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i64 0, [[N]] |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_OUTER_PREHEADER:%.*]], label [[FOR_END:%.*]] |
| ; CHECK: for.outer.preheader: |
| ; CHECK-NEXT: br label [[FOR_INNER_PREHEADER:%.*]] |
| ; CHECK: for.inner.preheader: |
| ; CHECK-NEXT: [[I:%.*]] = phi i64 [ 0, [[FOR_OUTER_PREHEADER]] ], [ [[INC2:%.*]], [[FOR_OUTER:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_INNER:%.*]] |
| ; CHECK: for.inner: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ 0, [[FOR_INNER_PREHEADER]] ], [ [[INC1:%.*]], [[FOR_INNER]] ] |
| ; CHECK-NEXT: [[MUL:%.*]] = mul i64 [[I]], [[N]] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[A]], i64 [[MUL]] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i32, ptr [[GEP]], i64 [[J]] |
| ; CHECK-NEXT: store i32 0, ptr [[ARRAYIDX]], align 4 |
| ; CHECK-NEXT: [[INC1]] = add nuw i64 [[J]], 1 |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[INC1]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_INNER]], label [[FOR_OUTER]] |
| ; CHECK: for.outer: |
| ; CHECK-NEXT: [[INC2]] = add i64 [[I]], 1 |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i64 [[INC2]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_INNER_PREHEADER]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp3 = icmp ult i64 0, %N |
| br i1 %cmp3, label %for.outer.preheader, label %for.end |
| |
| for.outer.preheader: |
| br label %for.inner.preheader |
| |
| for.inner.preheader: |
| %i = phi i64 [ 0, %for.outer.preheader ], [ %inc2, %for.outer ] |
| br label %for.inner |
| |
| for.inner: |
| %j = phi i64 [ 0, %for.inner.preheader ], [ %inc1, %for.inner ] |
| %mul = mul i64 %i, %N |
| %gep = getelementptr i32, ptr %A, i64 %mul |
| %arrayidx = getelementptr i32, ptr %gep, i64 %j |
| store i32 0, ptr %arrayidx, align 4 |
| %inc1 = add nuw i64 %j, 1 |
| %cmp2 = icmp ult i64 %inc1, %N |
| br i1 %cmp2, label %for.inner, label %for.outer |
| |
| for.outer: |
| %inc2 = add i64 %i, 1 |
| %cmp1 = icmp ult i64 %inc2, %N |
| br i1 %cmp1, label %for.inner.preheader, label %for.end.loopexit |
| |
| for.end.loopexit: |
| br label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| ; A 3d loop corresponding to: |
| ; |
| ; for (int k = 0; k < N; ++k) |
| ; for (int i = 0; i < N; ++i) |
| ; for (int j = 0; j < M; ++j) |
| ; f(&A[i*M+j]); |
| ; |
| define void @d3_2(ptr %A, i32 %N, i32 %M) { |
| ; CHECK-LABEL: define void @d3_2( |
| ; CHECK-SAME: ptr [[A:%.*]], i32 [[N:%.*]], i32 [[M:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP30:%.*]] = icmp sgt i32 [[N]], 0 |
| ; CHECK-NEXT: br i1 [[CMP30]], label [[FOR_COND1_PREHEADER_LR_PH:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.cond1.preheader.lr.ph: |
| ; CHECK-NEXT: [[CMP625:%.*]] = icmp sgt i32 [[M]], 0 |
| ; CHECK-NEXT: br label [[FOR_COND1_PREHEADER_US:%.*]] |
| ; CHECK: for.cond1.preheader.us: |
| ; CHECK-NEXT: [[K_031_US:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER_LR_PH]] ], [ [[INC13_US:%.*]], [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US:%.*]] ] |
| ; CHECK-NEXT: br i1 [[CMP625]], label [[FOR_COND5_PREHEADER_US_US_LVER_CHECK:%.*]], label [[FOR_COND5_PREHEADER_US43_PREHEADER:%.*]] |
| ; CHECK: for.cond5.preheader.us43.preheader: |
| ; CHECK-NEXT: br label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US_LOOPEXIT50:%.*]] |
| ; CHECK: for.cond5.preheader.us.us.lver.check: |
| ; CHECK-NEXT: [[FLATTEN_MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 [[M]]) |
| ; CHECK-NEXT: [[FLATTEN_TRIPCOUNT:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 0 |
| ; CHECK-NEXT: [[FLATTEN_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 1 |
| ; CHECK-NEXT: br i1 [[FLATTEN_OVERFLOW]], label [[FOR_COND5_PREHEADER_US_US_PH_LVER_ORIG:%.*]], label [[FOR_COND5_PREHEADER_US_US_PH:%.*]] |
| ; CHECK: for.cond5.preheader.us.us.ph.lver.orig: |
| ; CHECK-NEXT: br label [[FOR_COND5_PREHEADER_US_US_LVER_ORIG:%.*]] |
| ; CHECK: for.cond5.preheader.us.us.lver.orig: |
| ; CHECK-NEXT: [[I_028_US_US_LVER_ORIG:%.*]] = phi i32 [ [[INC10_US_US_LVER_ORIG:%.*]], [[FOR_COND5_FOR_COND_CLEANUP7_CRIT_EDGE_US_US_LVER_ORIG:%.*]] ], [ 0, [[FOR_COND5_PREHEADER_US_US_PH_LVER_ORIG]] ] |
| ; CHECK-NEXT: [[MUL_US_US_LVER_ORIG:%.*]] = mul nsw i32 [[I_028_US_US_LVER_ORIG]], [[M]] |
| ; CHECK-NEXT: br label [[FOR_BODY8_US_US_LVER_ORIG:%.*]] |
| ; CHECK: for.body8.us.us.lver.orig: |
| ; CHECK-NEXT: [[J_026_US_US_LVER_ORIG:%.*]] = phi i32 [ 0, [[FOR_COND5_PREHEADER_US_US_LVER_ORIG]] ], [ [[INC_US_US_LVER_ORIG:%.*]], [[FOR_BODY8_US_US_LVER_ORIG]] ] |
| ; CHECK-NEXT: [[ADD_US_US_LVER_ORIG:%.*]] = add nsw i32 [[J_026_US_US_LVER_ORIG]], [[MUL_US_US_LVER_ORIG]] |
| ; CHECK-NEXT: [[IDXPROM_US_US_LVER_ORIG:%.*]] = sext i32 [[ADD_US_US_LVER_ORIG]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX_US_US_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IDXPROM_US_US_LVER_ORIG]] |
| ; CHECK-NEXT: tail call void @f(ptr [[ARRAYIDX_US_US_LVER_ORIG]]) |
| ; CHECK-NEXT: [[INC_US_US_LVER_ORIG]] = add nuw nsw i32 [[J_026_US_US_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp ne i32 [[INC_US_US_LVER_ORIG]], [[M]] |
| ; CHECK-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_BODY8_US_US_LVER_ORIG]], label [[FOR_COND5_FOR_COND_CLEANUP7_CRIT_EDGE_US_US_LVER_ORIG]] |
| ; CHECK: for.cond5.for.cond.cleanup7_crit_edge.us.us.lver.orig: |
| ; CHECK-NEXT: [[INC10_US_US_LVER_ORIG]] = add nuw nsw i32 [[I_028_US_US_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[EXITCOND51_LVER_ORIG:%.*]] = icmp ne i32 [[INC10_US_US_LVER_ORIG]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND51_LVER_ORIG]], label [[FOR_COND5_PREHEADER_US_US_LVER_ORIG]], label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US_LOOPEXIT_LOOPEXIT:%.*]] |
| ; CHECK: for.cond5.preheader.us.us.ph: |
| ; CHECK-NEXT: br label [[FOR_COND5_PREHEADER_US_US:%.*]] |
| ; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us.loopexit.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US_LOOPEXIT:%.*]] |
| ; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us.loopexit.loopexit1: |
| ; CHECK-NEXT: br label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US_LOOPEXIT]] |
| ; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US]] |
| ; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us.loopexit50: |
| ; CHECK-NEXT: br label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US]] |
| ; CHECK: for.cond1.for.cond.cleanup3_crit_edge.us: |
| ; CHECK-NEXT: [[INC13_US]] = add nuw nsw i32 [[K_031_US]], 1 |
| ; CHECK-NEXT: [[EXITCOND52:%.*]] = icmp ne i32 [[INC13_US]], [[N]] |
| ; CHECK-NEXT: br i1 [[EXITCOND52]], label [[FOR_COND1_PREHEADER_US]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: for.cond5.preheader.us.us: |
| ; CHECK-NEXT: [[I_028_US_US:%.*]] = phi i32 [ [[INC10_US_US:%.*]], [[FOR_COND5_FOR_COND_CLEANUP7_CRIT_EDGE_US_US:%.*]] ], [ 0, [[FOR_COND5_PREHEADER_US_US_PH]] ] |
| ; CHECK-NEXT: [[MUL_US_US:%.*]] = mul nsw i32 [[I_028_US_US]], [[M]] |
| ; CHECK-NEXT: br label [[FOR_BODY8_US_US:%.*]] |
| ; CHECK: for.cond5.for.cond.cleanup7_crit_edge.us.us: |
| ; CHECK-NEXT: [[INC10_US_US]] = add nuw nsw i32 [[I_028_US_US]], 1 |
| ; CHECK-NEXT: [[EXITCOND51:%.*]] = icmp ne i32 [[INC10_US_US]], [[FLATTEN_TRIPCOUNT]] |
| ; CHECK-NEXT: br i1 [[EXITCOND51]], label [[FOR_COND5_PREHEADER_US_US]], label [[FOR_COND1_FOR_COND_CLEANUP3_CRIT_EDGE_US_LOOPEXIT_LOOPEXIT1:%.*]] |
| ; CHECK: for.body8.us.us: |
| ; CHECK-NEXT: [[J_026_US_US:%.*]] = phi i32 [ 0, [[FOR_COND5_PREHEADER_US_US]] ] |
| ; CHECK-NEXT: [[ADD_US_US:%.*]] = add nsw i32 [[J_026_US_US]], [[MUL_US_US]] |
| ; CHECK-NEXT: [[IDXPROM_US_US:%.*]] = sext i32 [[I_028_US_US]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX_US_US:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IDXPROM_US_US]] |
| ; CHECK-NEXT: tail call void @f(ptr [[ARRAYIDX_US_US]]) |
| ; CHECK-NEXT: [[INC_US_US:%.*]] = add nuw nsw i32 [[J_026_US_US]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[INC_US_US]], [[M]] |
| ; CHECK-NEXT: br label [[FOR_COND5_FOR_COND_CLEANUP7_CRIT_EDGE_US_US]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp30 = icmp sgt i32 %N, 0 |
| br i1 %cmp30, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup |
| |
| for.cond1.preheader.lr.ph: |
| %cmp625 = icmp sgt i32 %M, 0 |
| br label %for.cond1.preheader.us |
| |
| for.cond1.preheader.us: |
| %k.031.us = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc13.us, %for.cond1.for.cond.cleanup3_crit_edge.us ] |
| br i1 %cmp625, label %for.cond5.preheader.us.us.preheader, label %for.cond5.preheader.us43.preheader |
| |
| for.cond5.preheader.us43.preheader: |
| br label %for.cond1.for.cond.cleanup3_crit_edge.us.loopexit50 |
| |
| for.cond5.preheader.us.us.preheader: |
| br label %for.cond5.preheader.us.us |
| |
| for.cond1.for.cond.cleanup3_crit_edge.us.loopexit: |
| br label %for.cond1.for.cond.cleanup3_crit_edge.us |
| |
| for.cond1.for.cond.cleanup3_crit_edge.us.loopexit50: |
| br label %for.cond1.for.cond.cleanup3_crit_edge.us |
| |
| for.cond1.for.cond.cleanup3_crit_edge.us: |
| %inc13.us = add nuw nsw i32 %k.031.us, 1 |
| %exitcond52 = icmp ne i32 %inc13.us, %N |
| br i1 %exitcond52, label %for.cond1.preheader.us, label %for.cond.cleanup.loopexit |
| |
| for.cond5.preheader.us.us: |
| %i.028.us.us = phi i32 [ %inc10.us.us, %for.cond5.for.cond.cleanup7_crit_edge.us.us ], [ 0, %for.cond5.preheader.us.us.preheader ] |
| %mul.us.us = mul nsw i32 %i.028.us.us, %M |
| br label %for.body8.us.us |
| |
| for.cond5.for.cond.cleanup7_crit_edge.us.us: |
| %inc10.us.us = add nuw nsw i32 %i.028.us.us, 1 |
| %exitcond51 = icmp ne i32 %inc10.us.us, %N |
| br i1 %exitcond51, label %for.cond5.preheader.us.us, label %for.cond1.for.cond.cleanup3_crit_edge.us.loopexit |
| |
| for.body8.us.us: |
| %j.026.us.us = phi i32 [ 0, %for.cond5.preheader.us.us ], [ %inc.us.us, %for.body8.us.us ] |
| %add.us.us = add nsw i32 %j.026.us.us, %mul.us.us |
| %idxprom.us.us = sext i32 %add.us.us to i64 |
| %arrayidx.us.us = getelementptr inbounds i32, ptr %A, i64 %idxprom.us.us |
| tail call void @f(ptr %arrayidx.us.us) #2 |
| %inc.us.us = add nuw nsw i32 %j.026.us.us, 1 |
| %exitcond = icmp ne i32 %inc.us.us, %M |
| br i1 %exitcond, label %for.body8.us.us, label %for.cond5.for.cond.cleanup7_crit_edge.us.us |
| |
| for.cond.cleanup.loopexit: |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| ret void |
| } |
| |
| ; GEP doesn't dominate the loop latch so we need to check if N*M will overflow. |
| @first = global i32 1, align 4 |
| @a = external global [0 x i8], align 1 |
| define void @overflow(i32 %lim, ptr %a) { |
| ; CHECK-LABEL: define void @overflow( |
| ; CHECK-SAME: i32 [[LIM:%.*]], ptr [[A:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP17_NOT:%.*]] = icmp eq i32 [[LIM]], 0 |
| ; CHECK-NEXT: br i1 [[CMP17_NOT]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_COND1_PREHEADER_LVER_CHECK:%.*]] |
| ; CHECK: for.cond1.preheader.lver.check: |
| ; CHECK-NEXT: [[FLATTEN_MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[LIM]], i32 100000) |
| ; CHECK-NEXT: [[FLATTEN_TRIPCOUNT:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 0 |
| ; CHECK-NEXT: [[FLATTEN_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[FLATTEN_MUL]], 1 |
| ; CHECK-NEXT: br i1 [[FLATTEN_OVERFLOW]], label [[FOR_COND1_PREHEADER_PH_LVER_ORIG:%.*]], label [[FOR_COND1_PREHEADER_PH:%.*]] |
| ; CHECK: for.cond1.preheader.ph.lver.orig: |
| ; CHECK-NEXT: br label [[FOR_COND1_PREHEADER_LVER_ORIG:%.*]] |
| ; CHECK: for.cond1.preheader.lver.orig: |
| ; CHECK-NEXT: [[I_018_LVER_ORIG:%.*]] = phi i32 [ [[INC6_LVER_ORIG:%.*]], [[FOR_COND_CLEANUP3_LVER_ORIG:%.*]] ], [ 0, [[FOR_COND1_PREHEADER_PH_LVER_ORIG]] ] |
| ; CHECK-NEXT: [[MUL_LVER_ORIG:%.*]] = mul i32 [[I_018_LVER_ORIG]], 100000 |
| ; CHECK-NEXT: br label [[FOR_BODY4_LVER_ORIG:%.*]] |
| ; CHECK: for.body4.lver.orig: |
| ; CHECK-NEXT: [[J_016_LVER_ORIG:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER_LVER_ORIG]] ], [ [[INC_LVER_ORIG:%.*]], [[IF_END_LVER_ORIG:%.*]] ] |
| ; CHECK-NEXT: [[ADD_LVER_ORIG:%.*]] = add i32 [[J_016_LVER_ORIG]], [[MUL_LVER_ORIG]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @first, align 4 |
| ; CHECK-NEXT: [[TOBOOL_NOT_LVER_ORIG:%.*]] = icmp eq i32 [[TMP0]], 0 |
| ; CHECK-NEXT: br i1 [[TOBOOL_NOT_LVER_ORIG]], label [[IF_END_LVER_ORIG]], label [[IF_THEN_LVER_ORIG:%.*]] |
| ; CHECK: if.then.lver.orig: |
| ; CHECK-NEXT: [[ARRAYIDX_LVER_ORIG:%.*]] = getelementptr inbounds [0 x i8], ptr @a, i32 0, i32 [[ADD_LVER_ORIG]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX_LVER_ORIG]], align 1 |
| ; CHECK-NEXT: tail call void asm sideeffect "", "r"(i8 [[TMP1]]) |
| ; CHECK-NEXT: store i32 0, ptr @first, align 4 |
| ; CHECK-NEXT: br label [[IF_END_LVER_ORIG]] |
| ; CHECK: if.end.lver.orig: |
| ; CHECK-NEXT: tail call void asm sideeffect "", "r"(i32 [[ADD_LVER_ORIG]]) |
| ; CHECK-NEXT: [[INC_LVER_ORIG]] = add nuw nsw i32 [[J_016_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[CMP2_LVER_ORIG:%.*]] = icmp ult i32 [[J_016_LVER_ORIG]], 99999 |
| ; CHECK-NEXT: br i1 [[CMP2_LVER_ORIG]], label [[FOR_BODY4_LVER_ORIG]], label [[FOR_COND_CLEANUP3_LVER_ORIG]] |
| ; CHECK: for.cond.cleanup3.lver.orig: |
| ; CHECK-NEXT: [[INC6_LVER_ORIG]] = add i32 [[I_018_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[CMP_LVER_ORIG:%.*]] = icmp ult i32 [[INC6_LVER_ORIG]], [[LIM]] |
| ; CHECK-NEXT: br i1 [[CMP_LVER_ORIG]], label [[FOR_COND1_PREHEADER_LVER_ORIG]], label [[FOR_COND_CLEANUP_LOOPEXIT_LOOPEXIT:%.*]] |
| ; CHECK: for.cond1.preheader.ph: |
| ; CHECK-NEXT: br label [[FOR_COND1_PREHEADER:%.*]] |
| ; CHECK: for.cond1.preheader: |
| ; CHECK-NEXT: [[I_018:%.*]] = phi i32 [ [[INC6:%.*]], [[FOR_COND_CLEANUP3:%.*]] ], [ 0, [[FOR_COND1_PREHEADER_PH]] ] |
| ; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[I_018]], 100000 |
| ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit.loopexit1: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP_LOOPEXIT]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.cond.cleanup3: |
| ; CHECK-NEXT: [[INC6]] = add i32 [[I_018]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[INC6]], [[FLATTEN_TRIPCOUNT]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_COND1_PREHEADER]], label [[FOR_COND_CLEANUP_LOOPEXIT_LOOPEXIT1:%.*]] |
| ; CHECK: for.body4: |
| ; CHECK-NEXT: [[J_016:%.*]] = phi i32 [ 0, [[FOR_COND1_PREHEADER]] ] |
| ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[J_016]], [[MUL]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @first, align 4 |
| ; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i32 [[TMP2]], 0 |
| ; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[IF_END:%.*]], label [[IF_THEN:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i8], ptr @a, i32 0, i32 [[I_018]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: tail call void asm sideeffect "", "r"(i8 [[TMP3]]) |
| ; CHECK-NEXT: store i32 0, ptr @first, align 4 |
| ; CHECK-NEXT: br label [[IF_END]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: tail call void asm sideeffect "", "r"(i32 [[I_018]]) |
| ; CHECK-NEXT: [[INC:%.*]] = add nuw nsw i32 [[J_016]], 1 |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[J_016]], 99999 |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP3]] |
| ; |
| entry: |
| %cmp17.not = icmp eq i32 %lim, 0 |
| br i1 %cmp17.not, label %for.cond.cleanup, label %for.cond1.preheader.preheader |
| |
| for.cond1.preheader.preheader: |
| br label %for.cond1.preheader |
| |
| for.cond1.preheader: |
| %i.018 = phi i32 [ %inc6, %for.cond.cleanup3 ], [ 0, %for.cond1.preheader.preheader ] |
| %mul = mul i32 %i.018, 100000 |
| br label %for.body4 |
| |
| for.cond.cleanup.loopexit: |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.cond.cleanup3: |
| %inc6 = add i32 %i.018, 1 |
| %cmp = icmp ult i32 %inc6, %lim |
| br i1 %cmp, label %for.cond1.preheader, label %for.cond.cleanup.loopexit |
| |
| for.body4: |
| %j.016 = phi i32 [ 0, %for.cond1.preheader ], [ %inc, %if.end ] |
| %add = add i32 %j.016, %mul |
| %0 = load i32, ptr @first, align 4 |
| %tobool.not = icmp eq i32 %0, 0 |
| br i1 %tobool.not, label %if.end, label %if.then |
| |
| if.then: |
| %arrayidx = getelementptr inbounds [0 x i8], ptr @a, i32 0, i32 %add |
| %1 = load i8, ptr %arrayidx, align 1 |
| tail call void asm sideeffect "", "r"(i8 %1) |
| store i32 0, ptr @first, align 4 |
| br label %if.end |
| |
| if.end: |
| tail call void asm sideeffect "", "r"(i32 %add) |
| %inc = add nuw nsw i32 %j.016, 1 |
| %cmp2 = icmp ult i32 %j.016, 99999 |
| br i1 %cmp2, label %for.body4, label %for.cond.cleanup3 |
| } |
| |
| declare dso_local void @f(ptr) |