================
@@ -83,13 +84,39 @@
WebAssemblyInstructionSelector::WebAssemblyInstructionSelector(
{
}
+bool WebAssemblyInstructionSelector::selectCopy(
+ MachineInstr &I, MachineRegisterInfo &MRI) const {
+ const TargetRegisterClass *DstRC =
+ TRI.getConstrainedRegClassForOperand(I.getOperand(0), MRI);
+ if (!DstRC)
+ return false;
+
+ const TargetRegisterClass *SrcRC =
+ TRI.getConstrainedRegClassForOperand(I.getOperand(1), MRI);
+ if (!SrcRC)
+ return false;
+
+ if (DstRC != SrcRC)
+ return false;
----------------
arsenm wrote:
This check doesn't make sense; COPY between classes is one of the primary
reasons to use a copy?
https://github.com/llvm/llvm-project/pull/197256
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