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swr/rast: Handling removed LLVM intrinsics in trunk 

- Functionality replaced with emulated intrinsics
- Fixes Bug 106558

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
This commit is contained in:
Alok Hota 2018-06-25 09:52:18 -05:00 committed by Tim Rowley
parent 83d3ddd0ec
commit c7e9102d89
1 changed files with 40 additions and 0 deletions
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40
src/gallium/drivers/swr/rasterizer/jitter/functionpasses/lower_x86.cpp
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@ -92,6 +92,8 @@ namespace SwrJit
VROUND_EMU(LowerX86 *pThis, TargetArch arch, TargetWidth width, CallInst *pCallInst);
Instruction *
VHSUB_EMU(LowerX86 *pThis, TargetArch arch, TargetWidth width, CallInst *pCallInst);
Instruction *
VCONVERT_EMU(LowerX86 *pThis, TargetArch arch, TargetWidth width, CallInst *pCallInst);
Instruction *DOUBLE_EMU(LowerX86 * pThis,
TargetArch arch,
@ -146,6 +148,7 @@ namespace SwrJit
// AVX512
{"meta.intrinsic.VRCPPS",
{{Intrinsic::x86_avx512_rcp14_ps_256, Intrinsic::x86_avx512_rcp14_ps_512}, NO_EMU}},
#if LLVM_VERSION_MAJOR < 7
{"meta.intrinsic.VPERMPS",
{{Intrinsic::x86_avx512_mask_permvar_sf_256,
Intrinsic::x86_avx512_mask_permvar_sf_512},
@ -154,15 +157,26 @@ namespace SwrJit
{{Intrinsic::x86_avx512_mask_permvar_si_256,
Intrinsic::x86_avx512_mask_permvar_si_512},
NO_EMU}},
#else
{"meta.intrinsic.VPERMPS",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VPERM_EMU}},
{"meta.intrinsic.VPERMD",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VPERM_EMU}},
#endif
{"meta.intrinsic.VGATHERPD",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VGATHER_EMU}},
{"meta.intrinsic.VGATHERPS",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VGATHER_EMU}},
{"meta.intrinsic.VGATHERDD",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VGATHER_EMU}},
#if LLVM_VERSION_MAJOR < 7
{"meta.intrinsic.VCVTPD2PS",
{{Intrinsic::x86_avx512_mask_cvtpd2ps_256, Intrinsic::x86_avx512_mask_cvtpd2ps_512},
NO_EMU}},
#else
{"meta.intrinsic.VCVTPD2PS",
{{Intrinsic::not_intrinsic, Intrinsic::not_intrinsic}, VCONVERT_EMU}},
#endif
{"meta.intrinsic.VCVTPH2PS",
{{Intrinsic::x86_avx512_mask_vcvtph2ps_256, Intrinsic::x86_avx512_mask_vcvtph2ps_512},
NO_EMU}},
@ -662,6 +676,32 @@ namespace SwrJit
return nullptr;
}
Instruction *VCONVERT_EMU(LowerX86* pThis, TargetArch arch, TargetWidth width, CallInst* pCallInst)
{
SWR_ASSERT(arch == AVX512);
auto B = pThis->B;
auto vf32Src = pCallInst->getOperand(0);
if (width == W256)
{
auto vf32SrcRound = Intrinsic::getDeclaration(B->JM()->mpCurrentModule, Intrinsic::x86_avx_round_ps_256);
return cast<Instruction>(B->FP_TRUNC(vf32SrcRound, B->mFP32Ty));
}
else if (width == W512)
{
// 512 can use intrinsic
auto pfnFunc = Intrinsic::getDeclaration(B->JM()->mpCurrentModule, Intrinsic::x86_avx512_mask_cvtpd2ps_512);
return cast<Instruction>(B->CALL(pfnFunc, vf32Src));
}
else
{
SWR_ASSERT(false, "Unimplemented vector width.");
}
return nullptr;
}
// No support for hsub in AVX512
Instruction *VHSUB_EMU(LowerX86 *pThis, TargetArch arch, TargetWidth width, CallInst *pCallInst)
{