From 515674c7b66a411db4ea2fa1f5c30cd1461d3e51 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Sat, 20 Jan 2007 10:22:33 +0000 Subject: [PATCH] Round up stack to multiple of alignment only if it's a leaf function without alloca. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33401 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/ARMRegisterInfo.cpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/lib/Target/ARM/ARMRegisterInfo.cpp b/lib/Target/ARM/ARMRegisterInfo.cpp index 767be023a5a..979cb513ef9 100644 --- a/lib/Target/ARM/ARMRegisterInfo.cpp +++ b/lib/Target/ARM/ARMRegisterInfo.cpp @@ -917,14 +917,17 @@ void ARMRegisterInfo::emitPrologue(MachineFunction &MF) const { // If necessary, add one more SUBri to account for the call frame // and/or local storage, alloca area. - if (MFI->hasCalls() && !hasFP(MF)) + if (MFI->hasCalls() || MF.getFrameInfo()->hasVarSizedObjects()) { // We reserve argument space for call sites in the function immediately on // entry to the current function. This eliminates the need for add/sub // brackets around call sites. - NumBytes += MFI->getMaxCallFrameSize(); + if (!hasFP(MF)) + NumBytes += MFI->getMaxCallFrameSize(); + + // Round the size to a multiple of the alignment. + NumBytes = (NumBytes+Align-1)/Align*Align; + } - // Round the size to a multiple of the alignment. - NumBytes = (NumBytes+Align-1)/Align*Align; MFI->setStackSize(NumBytes); // Determine starting offsets of spill areas. -- 2.34.1