diff options
| author | Tom Stellard <thomas.stellard@amd.com> | 2014-01-22 19:24:19 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2014-01-22 19:24:19 +0000 |
| commit | 655ba251b50346262bee125d6fb29bb086a883d2 (patch) | |
| tree | 668553976bf6f9224bbf5712edd58d91f60f0280 /lib | |
| parent | 7dd37ae57a00f1c664b9ae0e9451c1717cf5348d (diff) | |
R600: Begin private memory at the second GPR.
This way private memory does not over-write work group information
stored in GPRs 0 and 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199824 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/R600/AMDGPUFrameLowering.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/R600/AMDGPUFrameLowering.cpp b/lib/Target/R600/AMDGPUFrameLowering.cpp index 40f14d2f67c..40cc9083c00 100644 --- a/lib/Target/R600/AMDGPUFrameLowering.cpp +++ b/lib/Target/R600/AMDGPUFrameLowering.cpp @@ -74,7 +74,10 @@ unsigned AMDGPUFrameLowering::getStackWidth(const MachineFunction &MF) const { int AMDGPUFrameLowering::getFrameIndexOffset(const MachineFunction &MF, int FI) const { const MachineFrameInfo *MFI = MF.getFrameInfo(); - unsigned Offset = 0; + // Start the offset at 2 so we don't overwrite work group information. + // XXX: We should only do this when the shader actually uses this + // information. + unsigned Offset = 2; int UpperBound = FI == -1 ? MFI->getNumObjects() : FI; for (int i = MFI->getObjectIndexBegin(); i < UpperBound; ++i) { |