llvm-6502/test/Transforms/DeadStoreElimination/2008-07-28-load-store.ll
Dan Gohman c1be92f3bb Make BasicAliasAnalysis a normal AliasAnalysis implementation which
does normal initialization and normal chaining. Change the default
AliasAnalysis implementation to NoAlias.

Update StandardCompileOpts.h and friends to explicitly request
BasicAliasAnalysis.

Update tests to explicitly request -basicaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18 18:04:47 +00:00

16 lines
631 B
LLVM

; RUN: opt < %s -basicaa -dse -S | not grep tmp5
; PR2599
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
define void @foo({ i32, i32 }* %x) nounwind {
entry:
%tmp4 = getelementptr { i32, i32 }* %x, i32 0, i32 0 ; <i32*> [#uses=2]
%tmp5 = load i32* %tmp4, align 4 ; <i32> [#uses=1]
%tmp7 = getelementptr { i32, i32 }* %x, i32 0, i32 1 ; <i32*> [#uses=2]
%tmp8 = load i32* %tmp7, align 4 ; <i32> [#uses=1]
%tmp17 = sub i32 0, %tmp8 ; <i32> [#uses=1]
store i32 %tmp5, i32* %tmp4, align 4
store i32 %tmp17, i32* %tmp7, align 4
ret void
}