[OMPIRBuilder] Use CreateNUWMul instead of passing flags to CreateMul. NFC

tclin914 · tclin914 · commit 174135863fb0 · 2025-08-20T17:00:17.000+08:00
diff --git a/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp b/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
@@ -5445,8 +5445,7 @@ OpenMPIRBuilder::collapseLoops(DebugLoc DL, ArrayRef<CanonicalLoopInfo *> Loops,
     }
 
     // TODO: Enable UndefinedSanitizer to diagnose an overflow here.
-    CollapsedTripCount = Builder.CreateMul(CollapsedTripCount, OrigTripCount,
-                                           {}, /*HasNUW=*/true);
+    CollapsedTripCount = Builder.CreateNUWMul(CollapsedTripCount, OrigTripCount);
   }
 
   // Create the collapsed loop control flow.

Original file line number	Diff line number	Diff line change
`@@ -5445,8 +5445,7 @@ OpenMPIRBuilder::collapseLoops(DebugLoc DL, ArrayRef<CanonicalLoopInfo *> Loops,`
`5445`	`5445`	`}`
`5446`	`5446`
`5447`	`5447`	`// TODO: Enable UndefinedSanitizer to diagnose an overflow here.`
`5448`		`- CollapsedTripCount = Builder.CreateMul(CollapsedTripCount, OrigTripCount,`
`5449`		`- {}, /HasNUW=/true);`
	`5448`	`+ CollapsedTripCount = Builder.CreateNUWMul(CollapsedTripCount, OrigTripCount);`
`5450`	`5449`	`}`
`5451`	`5450`
`5452`	`5451`	`// Create the collapsed loop control flow.`