1f9953c055
These two veclibs are only available for AArch64 targets, and as mentioned in https://discourse.llvm.org/t/rfc-should-fveclib-imply-fno-math-errno-for-all-targets/81384, we (Arm) think that `-fveclib` should imply `-fno-math-errno`. By setting `-fveclib` the user shows they intend to use the vector math functions, which implies they don't care about errno. However, currently, the vector mappings won't be used in many cases without setting `-fno-math-errno` separately. Making this change would also help resolve some inconsistencies in how vector mappings are applied (see https://github.com/llvm/llvm-project/pull/108980#discussion_r1766555560). Note: Both SLEEF and ArmPL state that they do not set `errno`: - https://developer.arm.com/documentation/101004/2410/General-information/Arm-Performance-Libraries-math-functions * "The vector functions in libamath which are available on Linux may not set errno nor raise exceptions" - https://sleef.org/2-references/libm/ * "These functions do not set errno nor raise an exception."
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
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