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3eecd92d3d
In rare cases the dead definition elimination pass code can cause illegal cmn instructions when it replaces dead registers on instructions that use unmaterialized frame indexes. This patch disables the dead definition optimization for instructions which include frame index operands. rdar://16438284 llvm-svn: 206208
19 lines
455 B
LLVM
19 lines
455 B
LLVM
; RUN: llc -march=arm64 < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios7.0.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @test1() #0 {
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%tmp1 = alloca i8
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%tmp2 = alloca i32, i32 4096
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%tmp3 = icmp eq i8* %tmp1, null
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%tmp4 = zext i1 %tmp3 to i32
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ret i32 %tmp4
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; CHECK-LABEL: test1
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; CHECK: adds [[TEMP:[a-z0-9]+]], sp, #16384
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; CHECK: adds [[TEMP]], [[TEMP]], #15
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}
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