[Clang][LoongArch] Support builtin functions for LSX and LASX #70404
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This patch adds compiler options -mlsx/-mlasx which enables the instruction sets of LSX and LASX, and sets related predefined macros acording to the options.
This patch does the following work: - Define the builtin functions for LSX - Add the header file lsxintrin.h - Add the immediate number range checking for LSX builtins
This patch does the following work: - Define the builtin functions for LASX - Add the header files lasxintrin.h
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These commits support builtin functions for LSX and LASX.
They do the following work:
Support compiler options -mlsx and -mlasx
Add ABI implementation of passing vectors
Define the builtin functions for LSX
Define the builtin functions for LASX