[InstCombine] Remove unnecessary casts (NFC) (#156394)

kazutakahirata · web-flow · commit a36a4019d371 · 2025-09-01T23:12:07.000-07:00
These variables are already non const.
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2027,9 +2027,7 @@ Instruction *InstCombinerImpl::foldOpIntoPhi(Instruction &I, PHINode *PN,
   }
 
   if (OneUse) {
-    replaceAllDbgUsesWith(const_cast<PHINode &>(*PN),
-                          const_cast<PHINode &>(*NewPN),
-                          const_cast<PHINode &>(*PN), DT);
+    replaceAllDbgUsesWith(*PN, *NewPN, *PN, DT);
   }
   return replaceInstUsesWith(I, NewPN);
 }

Original file line number	Diff line number	Diff line change
`@@ -2027,9 +2027,7 @@ Instruction InstCombinerImpl::foldOpIntoPhi(Instruction &I, PHINode PN,`
`2027`	`2027`	`}`
`2028`	`2028`
`2029`	`2029`	`if (OneUse) {`
`2030`		`- replaceAllDbgUsesWith(const_cast<PHINode &>(*PN),`
`2031`		`- const_cast<PHINode &>(*NewPN),`
`2032`		`- const_cast<PHINode &>(*PN), DT);`
	`2030`	`+ replaceAllDbgUsesWith(PN, NewPN, *PN, DT);`
`2033`	`2031`	`}`
`2034`	`2032`	`return replaceInstUsesWith(I, NewPN);`
`2035`	`2033`	`}`