[MC] Optimize isInSection

MaskRay · MaskRay · commit c46be969f0b5 · 2025-04-08T23:42:02.000-07:00
Remove one call of getFragment. The `SetUsed` bit isn't need here.
diff --git a/llvm/include/llvm/MC/MCSymbol.h b/llvm/include/llvm/MC/MCSymbol.h
@@ -252,7 +252,8 @@ class MCSymbol {
   /// isInSection - Check if this symbol is defined in some section (i.e., it
   /// is defined but not absolute).
   bool isInSection() const {
-    return isDefined() && !isAbsolute();
+    auto *F = getFragment(0);
+    return F && F != AbsolutePseudoFragment;
   }
 
   /// isUndefined - Check if this symbol undefined (i.e., implicitly defined).

Original file line number	Diff line number	Diff line change
`@@ -252,7 +252,8 @@ class MCSymbol {`
`252`	`252`	`/// isInSection - Check if this symbol is defined in some section (i.e., it`
`253`	`253`	`/// is defined but not absolute).`
`254`	`254`	`bool isInSection() const {`
`255`		`- return isDefined() && !isAbsolute();`
	`255`	`+ auto *F = getFragment(0);`
	`256`	`+ return F && F != AbsolutePseudoFragment;`
`256`	`257`	`}`
`257`	`258`
`258`	`259`	`/// isUndefined - Check if this symbol undefined (i.e., implicitly defined).`