1 ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 2 3 ; Check if the SLPVectorizer does not crash when handling 4 ; unreachable blocks with unscheduleable instructions. 5 6 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 7 target triple = "x86_64-apple-macosx10.9.0" 8 9 define void @foo(i32* nocapture %x) #0 { 10 entry: 11 br label %bb2 12 13 bb1: ; an unreachable block 14 %t3 = getelementptr inbounds i32, i32* %x, i64 4 15 %t4 = load i32, i32* %t3, align 4 16 %t5 = getelementptr inbounds i32, i32* %x, i64 5 17 %t6 = load i32, i32* %t5, align 4 18 %bad = fadd float %bad, 0.000000e+00 ; <- an instruction with self dependency, 19 ; but legal in unreachable code 20 %t7 = getelementptr inbounds i32, i32* %x, i64 6 21 %t8 = load i32, i32* %t7, align 4 22 %t9 = getelementptr inbounds i32, i32* %x, i64 7 23 %t10 = load i32, i32* %t9, align 4 24 br label %bb2 25 26 bb2: 27 %t1.0 = phi i32 [ %t4, %bb1 ], [ 2, %entry ] 28 %t2.0 = phi i32 [ %t6, %bb1 ], [ 2, %entry ] 29 %t3.0 = phi i32 [ %t8, %bb1 ], [ 2, %entry ] 30 %t4.0 = phi i32 [ %t10, %bb1 ], [ 2, %entry ] 31 store i32 %t1.0, i32* %x, align 4 32 %t12 = getelementptr inbounds i32, i32* %x, i64 1 33 store i32 %t2.0, i32* %t12, align 4 34 %t13 = getelementptr inbounds i32, i32* %x, i64 2 35 store i32 %t3.0, i32* %t13, align 4 36 %t14 = getelementptr inbounds i32, i32* %x, i64 3 37 store i32 %t4.0, i32* %t14, align 4 38 ret void 39 } 40 41
