| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -basic-aa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s |
| |
| ; Check if the SLPVectorizer does not crash when handling |
| ; unreachable blocks with unscheduleable instructions. |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.9.0" |
| |
| define void @foo(i32* nocapture %x) #0 { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i32, i32* [[X:%.*]], i64 4 |
| ; CHECK-NEXT: [[T4:%.*]] = load i32, i32* [[T3]], align 4 |
| ; CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 5 |
| ; CHECK-NEXT: [[T6:%.*]] = load i32, i32* [[T5]], align 4 |
| ; CHECK-NEXT: [[BAD:%.*]] = fadd float [[BAD]], 0.000000e+00 |
| ; CHECK-NEXT: [[T7:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 6 |
| ; CHECK-NEXT: [[T8:%.*]] = load i32, i32* [[T7]], align 4 |
| ; CHECK-NEXT: [[T9:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 7 |
| ; CHECK-NEXT: [[T10:%.*]] = load i32, i32* [[T9]], align 4 |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi <4 x i32> [ poison, [[BB1:%.*]] ], [ <i32 2, i32 2, i32 2, i32 2>, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[T12:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 1 |
| ; CHECK-NEXT: [[T13:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 2 |
| ; CHECK-NEXT: [[T14:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to <4 x i32>* |
| ; CHECK-NEXT: store <4 x i32> [[TMP0]], <4 x i32>* [[TMP1]], align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %bb2 |
| |
| bb1: ; an unreachable block |
| %t3 = getelementptr inbounds i32, i32* %x, i64 4 |
| %t4 = load i32, i32* %t3, align 4 |
| %t5 = getelementptr inbounds i32, i32* %x, i64 5 |
| %t6 = load i32, i32* %t5, align 4 |
| %bad = fadd float %bad, 0.000000e+00 ; <- an instruction with self dependency, |
| ; but legal in unreachable code |
| %t7 = getelementptr inbounds i32, i32* %x, i64 6 |
| %t8 = load i32, i32* %t7, align 4 |
| %t9 = getelementptr inbounds i32, i32* %x, i64 7 |
| %t10 = load i32, i32* %t9, align 4 |
| br label %bb2 |
| |
| bb2: |
| %t1.0 = phi i32 [ %t4, %bb1 ], [ 2, %entry ] |
| %t2.0 = phi i32 [ %t6, %bb1 ], [ 2, %entry ] |
| %t3.0 = phi i32 [ %t8, %bb1 ], [ 2, %entry ] |
| %t4.0 = phi i32 [ %t10, %bb1 ], [ 2, %entry ] |
| store i32 %t1.0, i32* %x, align 4 |
| %t12 = getelementptr inbounds i32, i32* %x, i64 1 |
| store i32 %t2.0, i32* %t12, align 4 |
| %t13 = getelementptr inbounds i32, i32* %x, i64 2 |
| store i32 %t3.0, i32* %t13, align 4 |
| %t14 = getelementptr inbounds i32, i32* %x, i64 3 |
| store i32 %t4.0, i32* %t14, align 4 |
| ret void |
| } |
| |
| define void @bar() { |
| ; CHECK-LABEL: @bar( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[TMP:%.*]] = load atomic i8*, i8** undef unordered, align 8 |
| ; CHECK-NEXT: br label [[BB6:%.*]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: [[TMP4:%.*]] = load atomic i8*, i8** undef unordered, align 8 |
| ; CHECK-NEXT: br label [[BB6]] |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[TMP7:%.*]] = phi i8* [ [[TMP]], [[BB5:%.*]] ], [ undef, [[BB:%.*]] ] |
| ; CHECK-NEXT: [[TMP8:%.*]] = phi i8* [ [[TMP4]], [[BB5]] ], [ undef, [[BB]] ] |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %tmp = load atomic i8*, i8** undef unordered, align 8 |
| br label %bb6 |
| |
| bb5: ; No predecessors! |
| %tmp4 = load atomic i8*, i8** undef unordered, align 8 |
| br label %bb6 |
| |
| bb6: ; preds = %bb5, %bb |
| %tmp7 = phi i8* [ %tmp, %bb5 ], [ undef, %bb ] |
| %tmp8 = phi i8* [ %tmp4, %bb5 ], [ undef, %bb ] |
| ret void |
| } |