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5b43aa0b29
check if loads that happen in between stores alias with the first store in the chain, only with the second store onwards. llvm-svn: 169516
24 lines
787 B
LLVM
24 lines
787 B
LLVM
; RUN: llc < %s -march=x86 -mcpu=corei7 -mtriple=i686-pc-win32 | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.8.0"
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; Make sure that we are zeroing one memory location at a time using xorl and
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; not both using XMM registers.
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;CHECK: @foo
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;CHECK: xorl
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;CHECK-NOT: xmm
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;CHECK: ret
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define i32 @foo (i64* %so) nounwind uwtable ssp {
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entry:
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%used = getelementptr inbounds i64* %so, i32 3
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store i64 0, i64* %used, align 8
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%fill = getelementptr inbounds i64* %so, i32 2
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%L = load i64* %fill, align 8
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store i64 0, i64* %fill, align 8
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%cmp28 = icmp sgt i64 %L, 0
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%R = sext i1 %cmp28 to i32
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ret i32 %R
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}
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