llvm/test/Transforms/GVN/mixed.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

14 lines
352 B
LLVM

; RUN: opt < %s -basicaa -gvn -S | not grep DEADLOAD
; RUN: opt < %s -basicaa -gvn -S | not grep DEADGEP
define i32 @main(i32** %p) {
block1:
%z1 = load i32** %p
%z2 = getelementptr i32* %z1, i32 0
%z3 = load i32* %z2
%DEADLOAD = load i32** %p
%DEADGEP = getelementptr i32* %DEADLOAD, i32 0
%DEADLOAD2 = load i32* %DEADGEP
ret i32 %DEADLOAD2
}