simplify fmf intersect

nikic · nikic · commit cbb626082312 · 2024-11-25T10:18:15.000+01:00
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -1470,9 +1470,8 @@ Value *InstCombinerImpl::foldLogicOfFCmps(FCmpInst *LHS, FCmpInst *RHS,
       // (fcmp ord x, 0.0) & (fcmp ord y, 0.0)  -> (fcmp ord x, y)
       // (fcmp uno x, 0.0) | (fcmp uno y, 0.0)  -> (fcmp uno x, y)
       IRBuilder<>::FastMathFlagGuard FMFG(Builder);
-      FastMathFlags FMF = LHS->getFastMathFlags();
-      FMF &= RHS->getFastMathFlags();
-      Builder.setFastMathFlags(FMF);
+      Builder.setFastMathFlags(LHS->getFastMathFlags() &
+                               RHS->getFastMathFlags());
       return Builder.CreateFCmp(PredL, LHS0, RHS0);
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -1470,9 +1470,8 @@ Value InstCombinerImpl::foldLogicOfFCmps(FCmpInst LHS, FCmpInst *RHS,`
`1470`	`1470`	`// (fcmp ord x, 0.0) & (fcmp ord y, 0.0) -> (fcmp ord x, y)`
`1471`	`1471`	`// (fcmp uno x, 0.0) \| (fcmp uno y, 0.0) -> (fcmp uno x, y)`
`1472`	`1472`	`IRBuilder<>::FastMathFlagGuard FMFG(Builder);`
`1473`		`- FastMathFlags FMF = LHS->getFastMathFlags();`
`1474`		`- FMF &= RHS->getFastMathFlags();`
`1475`		`- Builder.setFastMathFlags(FMF);`
	`1473`	`+ Builder.setFastMathFlags(LHS->getFastMathFlags() &`
	`1474`	`+ RHS->getFastMathFlags());`
`1476`	`1475`	`return Builder.CreateFCmp(PredL, LHS0, RHS0);`
`1477`	`1476`	`}`
`1478`	`1477`	`}`