blob: fe6674da041f5ceddb54f71e19edb56f0b921239 [file] [log] [blame]
; 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) nounwind {
%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