llvm-project/llvm/test/Transforms/GlobalOpt/malloc-promote-2.ll

23 lines
841 B
LLVM

; RUN: opt < %s -globalopt -globaldce -S | not grep malloc
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i686-apple-darwin8"
@G = internal global i32* null ; <i32**> [#uses=3]
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
}