================
@@ -422,6 +433,33 @@ bool AMDGPURewriteAGPRCopyMFMAImpl::tryFoldCopiesFromAGPR(
return MadeChange;
}
+unsigned
+AMDGPURewriteAGPRCopyMFMAImpl::getSubRegFromReload(MachineInstr &MI,
+ Register Reg) const {
+ unsigned NumRegs = TRI.getRegSizeInBits(*MRI.getRegClass(Reg)) / 32;
+ unsigned SubReg = 0;
+ // SubReg accesses for the tuple registers are of interest here.
+ // Note: We don't support 16-bit subreg reloads. If that assuption is
----------------
cdevadas wrote:
Fixed it.
https://github.com/llvm/llvm-project/pull/174998
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