llvm.org GIT mirror llvm / release_39 test / Transforms / DeadStoreElimination / 2011-03-25-DSEMiscompile.ll
release_39

Tree @release_39 (Download .tar.gz)

2011-03-25-DSEMiscompile.ll @release_39raw · history · blame

; RUN: opt < %s -basicaa -dse -S | FileCheck %s
; PR9561
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
target triple = "i386-apple-darwin9.8"

@A = external global [0 x i32]

declare ghccc void @Func2(i32*, i32*, i32*, i32)

define ghccc void @Func1(i32* noalias %Arg1, i32* noalias %Arg2, i32* %Arg3, i32 %Arg4) {
entry:
  store i32 add (i32 ptrtoint ([0 x i32]* @A to i32), i32 1), i32* %Arg2
; CHECK: store i32 add (i32 ptrtoint ([0 x i32]* @A to i32), i32 1), i32* %Arg2
  %ln2gz = getelementptr i32, i32* %Arg1, i32 14
  %ln2gA = bitcast i32* %ln2gz to double*
  %ln2gB = load double, double* %ln2gA
  %ln2gD = getelementptr i32, i32* %Arg2, i32 -3
  %ln2gE = bitcast i32* %ln2gD to double*
  store double %ln2gB, double* %ln2gE
; CHECK: store double %ln2gB, double* %ln2gE
  tail call ghccc void @Func2(i32* %Arg1, i32* %Arg2, i32* %Arg3, i32 %Arg4) nounwind
  ret void
}