[AMDGPU] Remove unnecessary untieRegOperand (#107695)

jayfoad · web-flow · commit 1d44ecb9daff · 2024-09-08T08:21:19.000+01:00
As far as I can tell, V_SET_INACTIVE has never had tied operands.
diff --git a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
@@ -1534,7 +1534,6 @@ bool SIWholeQuadMode::lowerCopyInstrs() {
       if (MI->getOperand(2).isReg())
         RecomputeReg = MI->getOperand(2).getReg();
       MI->removeOperand(2);
-      MI->untieRegOperand(1);
     } else {
       assert(MI->getNumExplicitOperands() == 2);
     }

Original file line number	Diff line number	Diff line change
`@@ -1534,7 +1534,6 @@ bool SIWholeQuadMode::lowerCopyInstrs() {`
`1534`	`1534`	`if (MI->getOperand(2).isReg())`
`1535`	`1535`	`RecomputeReg = MI->getOperand(2).getReg();`
`1536`	`1536`	`MI->removeOperand(2);`
`1537`		`- MI->untieRegOperand(1);`
`1538`	`1537`	`} else {`
`1539`	`1538`	`assert(MI->getNumExplicitOperands() == 2);`
`1540`	`1539`	`}`