llvm-6502/test/Analysis/LoadVN/undefined_load.ll
Tanya Lattner dcd188d33f Remove llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47110 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 06:56:27 +00:00

15 lines
346 B
LLVM

; RUN: llvm-as < %s | opt -load-vn -gcse | llvm-dis | not grep load
; Test that loads of undefined memory are eliminated.
define i32 @test1() {
%X = malloc i32 ; <i32*> [#uses=1]
%Y = load i32* %X ; <i32> [#uses=1]
ret i32 %Y
}
define i32 @test2() {
%X = alloca i32 ; <i32*> [#uses=1]
%Y = load i32* %X ; <i32> [#uses=1]
ret i32 %Y
}