diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/movtopush.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/movtopush.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/movtopush.ll b/llvm/test/CodeGen/X86/movtopush.ll index b02f9ec45e7..cd7ec1b165d 100644 --- a/llvm/test/CodeGen/X86/movtopush.ll +++ b/llvm/test/CodeGen/X86/movtopush.ll @@ -357,3 +357,26 @@ entry: call void @good(i32 9, i32 10, i32 11, i32 12) ret void } + +; Make sure the add does not prevent folding loads into pushes. +; val1 and val2 will not be folded into pushes since they have +; an additional use, but val3 should be. +; NORMAL-LABEL: test13: +; NORMAL: movl ([[P1:%e..]]), [[V1:%e..]] +; NORMAL-NEXT: movl ([[P2:%e..]]), [[V2:%e..]] +; NORMAL-NEXT: , [[ADD:%e..]] +; NORMAL-NEXT: pushl [[ADD]] +; NORMAL-NEXT: pushl ([[P3:%e..]]) +; NORMAL-NEXT: pushl [[V2]] +; NORMAL-NEXT: pushl [[V1]] +; NORMAL-NEXT: calll _good +; NORMAL: movl [[P3]], %eax +define i32* @test13(i32* inreg %ptr1, i32* inreg %ptr2, i32* inreg %ptr3) optsize { +entry: + %val1 = load i32, i32* %ptr1 + %val2 = load i32, i32* %ptr2 + %val3 = load i32, i32* %ptr3 + %add = add i32 %val1, %val2 + call void @good(i32 %val1, i32 %val2, i32 %val3, i32 %add) + ret i32* %ptr3 +} |
