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; 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
}
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