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gallium: Restore VSX for llvm >= 4

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Accidentally dropped in 4fdd455eeb.

Fixes: 4fdd455e ("gallium: Require LLVM >= 3.4)
Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This commit is contained in:
Adam Jackson 2019-09-12 13:07:05 -04:00
parent 2efc804892
commit 5a9dec7534
1 changed files with 14 additions and 0 deletions
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14
src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
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@ -410,6 +410,20 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
if (util_cpu_caps.has_altivec) {
MAttrs.push_back("-vsx");
}
#else
/*
* Bug 25503 is fixed, by the same fix that fixed
* bug 26775, in versions of LLVM later than 3.8 (starting with 3.8.1).
* BZ 33531 actually comprises more than one bug, all of
* which are fixed in LLVM 4.0.
*
* With LLVM 4.0 or higher:
* Make sure VSX instructions are ENABLED (if supported), unless
* VSX instructions are explicitly enabled/disabled via GALLIVM_VSX=1 or 0.
*/
if (util_cpu_caps.has_altivec) {
MAttrs.push_back(util_cpu_caps.has_vsx ? "+vsx" : "-vsx");
}
#endif
#endif