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-rw-r--r--lib/Target/R600/SILowerControlFlow.cpp17
1 files changed, 16 insertions, 1 deletions
diff --git a/lib/Target/R600/SILowerControlFlow.cpp b/lib/Target/R600/SILowerControlFlow.cpp
index 9a027e7..2b60eb9 100644
--- a/lib/Target/R600/SILowerControlFlow.cpp
+++ b/lib/Target/R600/SILowerControlFlow.cpp
@@ -197,7 +197,8 @@ void SILowerControlFlowPass::Else(MachineInstr &MI) {
unsigned Dst = MI.getOperand(0).getReg();
unsigned Src = MI.getOperand(1).getReg();
- BuildMI(MBB, &MI, DL, TII->get(AMDGPU::S_OR_SAVEEXEC_B64), Dst)
+ BuildMI(MBB, MBB.getFirstNonPHI(), DL,
+ TII->get(AMDGPU::S_OR_SAVEEXEC_B64), Dst)
.addReg(Src); // Saved EXEC
BuildMI(MBB, &MI, DL, TII->get(AMDGPU::S_XOR_B64), AMDGPU::EXEC)
@@ -409,6 +410,7 @@ void SILowerControlFlowPass::IndirectDst(MachineInstr &MI) {
bool SILowerControlFlowPass::runOnMachineFunction(MachineFunction &MF) {
bool HaveKill = false;
+ bool NeedWQM = false;
unsigned Depth = 0;
for (MachineFunction::iterator BI = MF.begin(), BE = MF.end();
@@ -478,9 +480,22 @@ bool SILowerControlFlowPass::runOnMachineFunction(MachineFunction &MF) {
case AMDGPU::SI_INDIRECT_DST_V16:
IndirectDst(MI);
break;
+
+ case AMDGPU::V_INTERP_P1_F32:
+ case AMDGPU::V_INTERP_P2_F32:
+ case AMDGPU::V_INTERP_MOV_F32:
+ NeedWQM = true;
+ break;
+
}
}
}
+ if (NeedWQM) {
+ MachineBasicBlock &MBB = MF.front();
+ BuildMI(MBB, MBB.getFirstNonPHI(), DebugLoc(), TII->get(AMDGPU::S_WQM_B64),
+ AMDGPU::EXEC).addReg(AMDGPU::EXEC);
+ }
+
return true;
}