[Mesa-dev] [PATCH 05/12] radeon/llvm: fix live-in handling for inputs

[Vadim Girlin]

Set the input registers as live-in for entry basic block.

Signed-off-by: Vadim Girlin <vadimgirlin at gmail.com>
---
 src/gallium/drivers/radeon/AMDGPULowerShaderInstructions.cpp |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/radeon/AMDGPULowerShaderInstructions.cpp b/src/gallium/drivers/radeon/AMDGPULowerShaderInstructions.cpp
index d33055c..89e18f0 100644
--- a/src/gallium/drivers/radeon/AMDGPULowerShaderInstructions.cpp
+++ b/src/gallium/drivers/radeon/AMDGPULowerShaderInstructions.cpp
@@ -26,6 +26,9 @@ void AMDGPULowerShaderInstructionsPass::preloadRegister(MachineFunction * MF,
   if (!MRI->isLiveIn(physReg)) {
     MRI->addLiveIn(physReg, virtReg);
     MachineBasicBlock &EntryMBB = MF->front();
+
+    // XXX use EmitLiveInCopies instead?
+    EntryMBB.addLiveIn(physReg);
     BuildMI(MF->front(), EntryMBB.begin(), DebugLoc(), TII->get(TargetOpcode::COPY),
             virtReg)
             .addReg(physReg);
-- 
1.7.10.1