Emit COPY instructions instead of using copyRegToReg in InstrEmitter,
ScheduleDAGEmit, TwoAddressLowering, and PHIElimination.
This switches the bulk of register copies to using COPY, but many less used
copyRegToReg calls remain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108050 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 90d77d7..00dec66 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -1154,10 +1154,8 @@
ReMatRegs.set(regB);
++NumReMats;
} else {
- bool Emitted = TII->copyRegToReg(*mbbi, mi, regA, regB, rc, rc,
- mi->getDebugLoc());
- (void)Emitted;
- assert(Emitted && "Unable to issue a copy instruction!\n");
+ BuildMI(*mbbi, mi, mi->getDebugLoc(), TII->get(TargetOpcode::COPY),
+ regA).addReg(regB);
}
MachineBasicBlock::iterator prevMI = prior(mi);