diff options
Diffstat (limited to 'test/CodeGen/X86/movtopush.ll')
| -rw-r--r-- | test/CodeGen/X86/movtopush.ll | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/test/CodeGen/X86/movtopush.ll b/test/CodeGen/X86/movtopush.ll index b02f9ec45e7f..de4c87cf30ad 100644 --- a/test/CodeGen/X86/movtopush.ll +++ b/test/CodeGen/X86/movtopush.ll @@ -1,6 +1,6 @@ ; RUN: llc < %s -mtriple=i686-windows | FileCheck %s -check-prefix=NORMAL ; RUN: llc < %s -mtriple=x86_64-windows | FileCheck %s -check-prefix=X64 -; RUN: llc < %s -mtriple=i686-windows -force-align-stack -stack-alignment=32 | FileCheck %s -check-prefix=ALIGNED +; RUN: llc < %s -mtriple=i686-windows -stackrealign -stack-alignment=32 | FileCheck %s -check-prefix=ALIGNED %class.Class = type { i32 } %struct.s = type { i64 } @@ -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 +} |