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| author | Job Noorman <jobnoorman@gmail.com> | 2013-10-24 09:32:31 +0000 |
|---|---|---|
| committer | Job Noorman <jobnoorman@gmail.com> | 2013-10-24 09:32:31 +0000 |
| commit | cb8c3d1e490f6b26c71cad11558c6c642d8544e0 (patch) | |
| tree | cf593f84de73be95244322f0559333f7b89558b1 | |
| parent | 5e1d0d39db5fefe013f58c124a94694f96bce2f1 (diff) | |
Make sure SP is always aligned on a 2 byte boundary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193320 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/MSP430/MSP430FrameLowering.h | 4 | ||||
| -rw-r--r-- | test/CodeGen/MSP430/transient-stack-alignment.ll | 17 |
2 files changed, 19 insertions, 2 deletions
diff --git a/lib/Target/MSP430/MSP430FrameLowering.h b/lib/Target/MSP430/MSP430FrameLowering.h index c673f59b5ef..8370714a594 100644 --- a/lib/Target/MSP430/MSP430FrameLowering.h +++ b/lib/Target/MSP430/MSP430FrameLowering.h @@ -27,8 +27,8 @@ protected: public: explicit MSP430FrameLowering(const MSP430Subtarget &sti) - : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 2, -2), STI(sti) { - } + : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 2, -2, 2), + STI(sti) {} /// emitProlog/emitEpilog - These methods insert prolog and epilog code into /// the function. diff --git a/test/CodeGen/MSP430/transient-stack-alignment.ll b/test/CodeGen/MSP430/transient-stack-alignment.ll new file mode 100644 index 00000000000..cca83509cf4 --- /dev/null +++ b/test/CodeGen/MSP430/transient-stack-alignment.ll @@ -0,0 +1,17 @@ +; RUN: llc < %s | FileCheck %s + +target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16-a0:16:16" +target triple = "msp430---elf" + +define void @test() #0 { +; CHECK-LABEL: test: +; CHECK: sub.w #2, r1 + %1 = alloca i8, align 1 +; CHECK-NEXT: mov.b #0, 1(r1) + store i8 0, i8* %1, align 1 +; CHECK-NEXT: add.w #2, r1 +; CHECK-NEXT: ret + ret void +} + +attributes #0 = { nounwind "no-frame-pointer-elim"="false" } |