mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-09 10:05:41 +00:00
7c856c09cd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54832 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
525 B
LLVM
21 lines
525 B
LLVM
; RUN: llvm-as < %s | opt -globalsmodref-aa -gvn -instcombine | llvm-dis | \
|
|
; RUN: grep {ret i32 0}
|
|
|
|
@G = internal global i32* null ; <i32**> [#uses=3]
|
|
|
|
define void @test() {
|
|
%A = malloc i32 ; <i32*> [#uses=1]
|
|
store i32* %A, i32** @G
|
|
ret void
|
|
}
|
|
|
|
define i32 @test1(i32* %P) {
|
|
%g1 = load i32** @G ; <i32*> [#uses=2]
|
|
%h1 = load i32* %g1 ; <i32> [#uses=1]
|
|
store i32 123, i32* %P
|
|
%g2 = load i32** @G ; <i32*> [#uses=0]
|
|
%h2 = load i32* %g1 ; <i32> [#uses=1]
|
|
%X = sub i32 %h1, %h2 ; <i32> [#uses=1]
|
|
ret i32 %X
|
|
}
|