Changes in directory llvm/lib/Target/ARM:
ARMRegisterInfo.cpp updated: 1.32 -> 1.33
---
Log message:
Don't add or sub zero to sp.
---
Diffs of the changes: (+10 -6)
ARMRegisterInfo.cpp | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
Index: llvm/lib/Target/ARM/ARMRegisterInfo.cpp
diff -u llvm/lib/Target/ARM/ARMRegisterInfo.cpp:1.32
llvm/lib/Target/ARM/ARMRegisterInfo.cpp:1.33
--- llvm/lib/Target/ARM/ARMRegisterInfo.cpp:1.32 Fri Jan 12 14:35:49 2007
+++ llvm/lib/Target/ARM/ARMRegisterInfo.cpp Fri Jan 12 14:52:27 2007
@@ -206,9 +206,11 @@
MFI->setStackSize(NumBytes);
- //sub sp, sp, #NumBytes
- splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::SUB), ARM::R13,
- ARM::R13, NumBytes);
+ if (NumBytes) {
+ //sub sp, sp, #NumBytes
+ splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::SUB), ARM::R13,
+ ARM::R13, NumBytes);
+ }
if (HasFP) {
@@ -234,9 +236,11 @@
BuildMI(MBB, MBBI, TII.get(ARM::LDR), ARM::R11).addReg(ARM::R13).addImm(0);
}
- //add sp, sp, #NumBytes
- splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::ADD), ARM::R13,
- ARM::R13, NumBytes);
+ if (NumBytes){
+ //add sp, sp, #NumBytes
+ splitInstructionWithImmediate(MBB, MBBI, TII.get(ARM::ADD), ARM::R13,
+ ARM::R13, NumBytes);
+ }
}
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