[Hexagon] Avoid repeated map lookups (NFC)

kazutakahirata · kazutakahirata · commit 3cd0a8f9bba8 · 2025-02-04T23:19:49.000-08:00
diff --git a/llvm/lib/Target/Hexagon/HexagonISelDAGToDAGHVX.cpp b/llvm/lib/Target/Hexagon/HexagonISelDAGToDAGHVX.cpp
@@ -262,8 +262,7 @@ bool Coloring::color() {
 
   // Explicitly assign "None" to all uncolored nodes.
   for (unsigned I = 0; I != Order.size(); ++I)
-    if (Colors.count(I) == 0)
-      Colors[I] = ColorKind::None;
+    Colors.try_emplace(I, ColorKind::None);
 
   return true;
 }

Original file line number	Diff line number	Diff line change
`@@ -262,8 +262,7 @@ bool Coloring::color() {`
`262`	`262`
`263`	`263`	`// Explicitly assign "None" to all uncolored nodes.`
`264`	`264`	`for (unsigned I = 0; I != Order.size(); ++I)`
`265`		`- if (Colors.count(I) == 0)`
`266`		`- Colors[I] = ColorKind::None;`
	`265`	`+ Colors.try_emplace(I, ColorKind::None);`
`267`	`266`
`268`	`267`	`return true;`
`269`	`268`	`}`