llvm-6502/test/Analysis/BasicAA/2003-09-19-LocalArgument.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

13 lines
279 B
LLVM

; In this test, a local alloca cannot alias an incoming argument.
; RUN: opt < %s -basicaa -gvn -instcombine -S | not grep sub
define i32 @test(i32* %P) {
%X = alloca i32
%V1 = load i32* %P
store i32 0, i32* %X
%V2 = load i32* %P
%Diff = sub i32 %V1, %V2
ret i32 %Diff
}