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| author | Tom Stellard <thomas.stellard@amd.com> | 2013-11-18 18:50:15 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-11-18 18:50:15 +0000 |
| commit | bf9ddd5e8ff207e9b9a1cd484242e8d460f3834e (patch) | |
| tree | 1ddea3680a13a87a160d55ce337c83bb7292f329 /lib/Target/R600/SIFixSGPRCopies.cpp | |
| parent | 7c5498ee55e241dea91cca022bd9a5831a1ba4b1 (diff) | |
| download | llvm-bf9ddd5e8ff207e9b9a1cd484242e8d460f3834e.tar.gz llvm-bf9ddd5e8ff207e9b9a1cd484242e8d460f3834e.tar.bz2 llvm-bf9ddd5e8ff207e9b9a1cd484242e8d460f3834e.tar.xz | |
R600/SI: Fix another case of illegal VGPR->SGPR copy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195025 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/R600/SIFixSGPRCopies.cpp')
| -rw-r--r-- | lib/Target/R600/SIFixSGPRCopies.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/Target/R600/SIFixSGPRCopies.cpp b/lib/Target/R600/SIFixSGPRCopies.cpp index 6116b4e3c5..b49fda9689 100644 --- a/lib/Target/R600/SIFixSGPRCopies.cpp +++ b/lib/Target/R600/SIFixSGPRCopies.cpp @@ -181,14 +181,13 @@ bool SIFixSGPRCopies::isVGPRToSGPRCopy(const MachineInstr &Copy, unsigned SrcReg = Copy.getOperand(1).getReg(); unsigned SrcSubReg = Copy.getOperand(1).getSubReg(); const TargetRegisterClass *DstRC = MRI.getRegClass(DstReg); + const TargetRegisterClass *SrcRC; if (!TargetRegisterInfo::isVirtualRegister(SrcReg) || DstRC == &AMDGPU::M0RegRegClass) return false; - const TargetRegisterClass *SrcRC = TRI->getSubRegClass( - MRI.getRegClass(SrcReg), SrcSubReg); - + SrcRC = inferRegClassFromDef(TRI, MRI, SrcReg, SrcSubReg); return TRI->isSGPRClass(DstRC) && !TRI->getCommonSubClass(DstRC, SrcRC); } |