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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-07-18 16:44:58 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-07-18 16:44:58 +0000 |
| commit | 254ad3de5cd433df78d44503f48c52102e17db7d (patch) | |
| tree | 3a68a0d2906663cfc48803fc963e42ae990125ec /llvm/lib/Target/AMDGPU/SIFrameLowering.cpp | |
| parent | 1cc47f8413b38f075bbc7a1e0e38ead00700efdf (diff) | |
| download | bcm5719-llvm-254ad3de5cd433df78d44503f48c52102e17db7d.tar.gz bcm5719-llvm-254ad3de5cd433df78d44503f48c52102e17db7d.zip | |
AMDGPU: Annotate necessity of flat-scratch-init
As an approximation of the existing handling to avoid
regressions. Fixes using too many registers with calls
on subtargets with the SGPR allocation bug.
llvm-svn: 308326
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIFrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFrameLowering.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp index ed962ac38b8..7334781916d 100644 --- a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp +++ b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp @@ -246,7 +246,7 @@ void SIFrameLowering::emitEntryFunctionPrologue(MachineFunction &MF, // this point it appears we need the setup. This part of the prolog should be // emitted after frame indices are eliminated. - if (MF.getFrameInfo().hasStackObjects() && MFI->hasFlatScratchInit()) + if (MFI->hasFlatScratchInit()) emitFlatScratchInit(ST, MF, MBB); unsigned SPReg = MFI->getStackPtrOffsetReg(); @@ -254,7 +254,8 @@ void SIFrameLowering::emitEntryFunctionPrologue(MachineFunction &MF, assert(MRI.isReserved(SPReg) && "SPReg used but not reserved"); DebugLoc DL; - int64_t StackSize = MF.getFrameInfo().getStackSize(); + const MachineFrameInfo &FrameInfo = MF.getFrameInfo(); + int64_t StackSize = FrameInfo.getStackSize(); if (StackSize == 0) { BuildMI(MBB, MBB.begin(), DL, TII->get(AMDGPU::COPY), SPReg) |
