Mesa (master): swr/rast: fix VCVTPD2PS generation for AVX512

[George Kyriazis]

Module: Mesa
Branch: master
Commit: 7970fcff2540b7678cc07ed269ec7fb860a4d2de
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7970fcff2540b7678cc07ed269ec7fb860a4d2de

Author: Alok Hota <alok.hota at intel.com>
Date:   Wed May 16 11:14:19 2018 -0500

swr/rast: fix VCVTPD2PS generation for AVX512

Reviewed-By: George Kyriazis <george.kyriazis at intel.com>

---

 .../swr/rasterizer/jitter/functionpasses/lower_x86.cpp       | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/swr/rasterizer/jitter/functionpasses/lower_x86.cpp b/src/gallium/drivers/swr/rasterizer/jitter/functionpasses/lower_x86.cpp
index 3caea67e16..e0296f6255 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/functionpasses/lower_x86.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/functionpasses/lower_x86.cpp
@@ -265,8 +265,16 @@ namespace SwrJit
                 // Assuming the intrinsics are consistent and place the src operand and mask last in the argument list.
                 if (mTarget == AVX512)
                 {
-                    args.push_back(GetZeroVec(vecWidth, pElemTy));
-                    args.push_back(GetMask(vecWidth));
+                    if (pFunc->getName().equals("meta.intrinsic.VCVTPD2PS")) {
+                        args.push_back(GetZeroVec(W256, pCallInst->getType()->getScalarType()));
+                        args.push_back(GetMask(W256));
+                        // for AVX512 VCVTPD2PS, we also have to add rounding mode
+                        args.push_back(B->C(_MM_FROUND_TO_NEAREST_INT |
+                                            _MM_FROUND_NO_EXC));
+                    } else {
+                        args.push_back(GetZeroVec(vecWidth, pElemTy));
+                        args.push_back(GetMask(vecWidth));
+                    }
                 }
 
                 return B->CALLA(pIntrin, args);