llvm-6502/test/Transforms/GlobalOpt/malloc-promote-3.llx
2008-03-01 09:15:35 +00:00

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; RUN: llvm-as < %s | opt -globalopt | llvm-dis | not grep malloc
@G = internal global i32* null ; <i32**> [#uses=4]
define void @init() {
%P = malloc i32, i32 100 ; <i32*> [#uses=1]
store i32* %P, i32** @G
%GV = load i32** @G ; <i32*> [#uses=1]
%GVe = getelementptr i32* %GV, i32 40 ; <i32*> [#uses=1]
store i32 20, i32* %GVe
ret void
}
define i32 @get() {
%GV = load i32** @G ; <i32*> [#uses=1]
%GVe = getelementptr i32* %GV, i32 40 ; <i32*> [#uses=1]
%V = load i32* %GVe ; <i32> [#uses=1]
ret i32 %V
}
define i1 @check() {
%GV = load i32** @G ; <i32*> [#uses=1]
%V = icmp eq i32* %GV, null ; <i1> [#uses=1]
ret i1 %V
}