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gallivm: add LoongArch support to the mattrs setting code

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Currently the mattrs is set according to the softdev convention, with
LSX explicitly disabled because it's troublesome at least on LLVM 17.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30197>
This commit is contained in:
Icenowy Zheng 2024-07-06 00:10:39 +08:00 • committed by Marge Bot
parent 08425d9aaf
commit 979c364018
1 changed files with 18 additions and 0 deletions
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18
src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
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@ -414,6 +414,24 @@ lp_build_fill_mattrs(std::vector<std::string> &MAttrs)
*/
MAttrs = {"+m","+c","+a","+d","+f"};
#endif
#if DETECT_ARCH_LOONGARCH64 == 1
/*
* TODO: Implement util_get_cpu_caps()
*
* No FPU-less LoongArch64 systems are ever shipped yet, and LP64D is
* the default ABI, so FPU is enabled here.
*
* The Software development convention defaults to have "128-bit
* vector", so LSX is enabled here, see
* https://github.com/loongson/la-softdev-convention/releases/download/v0.1/la-softdev-convention.pdf
*/
MAttrs = {"+f","+d"};
#if LLVM_VERSION_MAJOR == 17
/* LLVM 17's LSX support is incomplete, so explicitly mask it */
MAttrs.push_back("-lsx");
#endif
#endif
}
void