[X86][AMX] Avoid to construct invalid shape for checking, NFCI (llvm#105973)

phoebewang · web-flow · commit 5c94dd73b2df · 2024-08-25T14:01:32.000+08:00
diff --git a/llvm/include/llvm/CodeGen/VirtRegMap.h b/llvm/include/llvm/CodeGen/VirtRegMap.h
@@ -114,7 +114,7 @@ class TargetInstrInfo;
     bool isShapeMapEmpty() const { return Virt2ShapeMap.empty(); }
 
     bool hasShape(Register virtReg) const {
-      return getShape(virtReg).isValid();
+      return Virt2ShapeMap.contains(virtReg);
     }
 
     ShapeT getShape(Register virtReg) const {

Original file line number	Diff line number	Diff line change
`@@ -114,7 +114,7 @@ class TargetInstrInfo;`
`114`	`114`	`bool isShapeMapEmpty() const { return Virt2ShapeMap.empty(); }`
`115`	`115`
`116`	`116`	`bool hasShape(Register virtReg) const {`
`117`		`- return getShape(virtReg).isValid();`
	`117`	`+ return Virt2ShapeMap.contains(virtReg);`
`118`	`118`	`}`
`119`	`119`
`120`	`120`	`ShapeT getShape(Register virtReg) const {`