[llvm] b1f6ef9 - [InstCombine] reduce code duplication for FP min/max with casts fold; NFC

[Sanjay Patel via llvm-commits]

Author: Sanjay Patel
Date: 2021-06-22T14:15:04-04:00
New Revision: b1f6ef92ec795d877a94e099e86363c39cbd359a

URL: https://github.com/llvm/llvm-project/commit/b1f6ef92ec795d877a94e099e86363c39cbd359a
DIFF: https://github.com/llvm/llvm-project/commit/b1f6ef92ec795d877a94e099e86363c39cbd359a.diff

LOG: [InstCombine] reduce code duplication for FP min/max with casts fold; NFC

Added: 
    

Modified: 
    llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
index 13d20b882150..c5ca8699c5c0 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -1367,19 +1367,12 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
       }
     }
 
-    Value *ExtSrc0;
-    Value *ExtSrc1;
-
-    // minnum (fpext x), (fpext y) -> minnum x, y
-    // maxnum (fpext x), (fpext y) -> maxnum x, y
-    if (match(II->getArgOperand(0), m_OneUse(m_FPExt(m_Value(ExtSrc0)))) &&
-        match(II->getArgOperand(1), m_OneUse(m_FPExt(m_Value(ExtSrc1)))) &&
-        ExtSrc0->getType() == ExtSrc1->getType()) {
-      Function *F = Intrinsic::getDeclaration(
-          II->getModule(), II->getIntrinsicID(), {ExtSrc0->getType()});
-      CallInst *NewCall = Builder.CreateCall(F, { ExtSrc0, ExtSrc1 });
-      NewCall->copyFastMathFlags(II);
-      NewCall->takeName(II);
+    // m((fpext X), (fpext Y)) -> fpext (m(X, Y))
+    if (match(Arg0, m_OneUse(m_FPExt(m_Value(X)))) &&
+        match(Arg1, m_OneUse(m_FPExt(m_Value(Y)))) &&
+        X->getType() == Y->getType()) {
+      Value *NewCall =
+          Builder.CreateBinaryIntrinsic(IID, X, Y, II, II->getName());
       return new FPExtInst(NewCall, II->getType());
     }