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llvm-mirror/test/Analysis/BasicAA/2003-09-19-LocalArgument.ll
Dan Gohman 6aff5b94ff 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.

llvm-svn: 116720
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
}