[Mesa-dev] [PATCH] R600/SI: Handle VGPR64 destination in copyPhysReg().

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

Allows nexuiz to run with radeonsi.

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 lib/Target/R600/SIInstrInfo.cpp |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/Target/R600/SIInstrInfo.cpp b/lib/Target/R600/SIInstrInfo.cpp
index 011ec50..2a6271c 100644
--- a/lib/Target/R600/SIInstrInfo.cpp
+++ b/lib/Target/R600/SIInstrInfo.cpp
@@ -42,7 +42,15 @@ SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
   // never be necessary.
   assert(DestReg != AMDGPU::SCC && SrcReg != AMDGPU::SCC);
 
-  if (AMDGPU::SReg_64RegClass.contains(DestReg)) {
+  if (AMDGPU::VReg_64RegClass.contains(DestReg)) {
+    assert(AMDGPU::VReg_64RegClass.contains(SrcReg) ||
+	   AMDGPU::SReg_64RegClass.contains(SrcReg));
+    BuildMI(MBB, MI, DL, get(AMDGPU::V_MOV_B32_e32), RI.getSubReg(DestReg, AMDGPU::sub0))
+            .addReg(RI.getSubReg(SrcReg, AMDGPU::sub0), getKillRegState(KillSrc))
+            .addReg(DestReg, RegState::Define | RegState::Implicit);
+    BuildMI(MBB, MI, DL, get(AMDGPU::V_MOV_B32_e32), RI.getSubReg(DestReg, AMDGPU::sub1))
+            .addReg(RI.getSubReg(SrcReg, AMDGPU::sub1), getKillRegState(KillSrc));
+  } else if (AMDGPU::SReg_64RegClass.contains(DestReg)) {
     assert(AMDGPU::SReg_64RegClass.contains(SrcReg));
     BuildMI(MBB, MI, DL, get(AMDGPU::S_MOV_B64), DestReg)
             .addReg(SrcReg, getKillRegState(KillSrc));
-- 
1.7.10.4