https://bugs.llvm.org/show_bug.cgi?id=47560
Bug ID: 47560
Summary: __builtin_round not constexpr
Product: clang
Version: 10.0
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: li...@carewolf.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
The builtin __builtin_constexpr is not constexpr, which is unfortunate as it is
nicely replaces with a single fcvtas instruction on arm64 architectures.
The same builtin on GCC is constexpr (though I don't think the C wrapped round
functions in cmath is).
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