https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/152939
Get the APFloat once and work with that, instead of calling isInf() and
potentially isNegative().
>From a9644453abe231e3b5485957ea26aeb75de9ef3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbae...@redhat.com>
Date: Sun, 10 Aug 2025 21:54:30 +0200
Subject: [PATCH] [clang][bytecode] Avoid a getValue() call in builtin_isinf
Get the APFloat once and work with that, instead of calling isInf() and
potentially isNegative().
---
clang/lib/AST/ByteCode/InterpBuiltin.cpp | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp
b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
index 14f6929037ff5..ad923a52a4ce1 100644
--- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp
+++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
@@ -459,12 +459,13 @@ static bool interp__builtin_isinf(InterpState &S, CodePtr
OpPC,
const InterpFrame *Frame, bool CheckSign,
const CallExpr *Call) {
const Floating &Arg = S.Stk.pop<Floating>();
- bool IsInf = Arg.isInf();
+ APFloat F = Arg.getAPFloat();
+ bool IsInf = F.isInfinity();
if (CheckSign)
- pushInteger(S, IsInf ? (Arg.isNegative() ? -1 : 1) : 0, Call->getType());
+ pushInteger(S, IsInf ? (F.isNegative() ? -1 : 1) : 0, Call->getType());
else
- pushInteger(S, Arg.isInf(), Call->getType());
+ pushInteger(S, IsInf, Call->getType());
return true;
}
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