| ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 |
| |
| ; 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 { |
| 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 |
| } |
| |