| ; 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, i32* @GLOBAL ; <i32> [#uses=1] |
| store i32 12, i32* %P2 |
| %Y = load i32, i32* %P3 ; <i32> [#uses=1] |
| %Z = sub i32 %Y, %L ; <i32> [#uses=1] |
| ret i32 %Z |
| } |
| |
