mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-30 23:42:52 +01:00
18 lines
663 B
LLVM
18 lines
663 B
LLVM
; This testcase was distilled from 132.ijpeg. Bsaically we cannot fold the
|
|
; load into the sub instruction here as it induces a cycle in the dag, which
|
|
; is invalid code (there is no correct way to order the instruction). Check
|
|
; that we do not fold the load into the sub.
|
|
|
|
; RUN: llc < %s -march=x86 | not grep sub.*GLOBAL
|
|
|
|
@GLOBAL = external global i32 ; <i32*> [#uses=1]
|
|
|
|
define i32 @test(i32* %P1, i32* %P2, i32* %P3) {
|
|
%L = load i32* @GLOBAL ; <i32> [#uses=1]
|
|
store i32 12, i32* %P2
|
|
%Y = load i32* %P3 ; <i32> [#uses=1]
|
|
%Z = sub i32 %Y, %L ; <i32> [#uses=1]
|
|
ret i32 %Z
|
|
}
|
|
|