Mesa (master): swr/rast: Added comment

[George Kyriazis]

Module: Mesa
Branch: master
Commit: d78b28fc335059b058ce7e97c19302c254d1630c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d78b28fc335059b058ce7e97c19302c254d1630c

Author: George Kyriazis <george.kyriazis at intel.com>
Date:   Tue Feb 20 19:24:55 2018 -0600

swr/rast: Added comment

Reviewed-by: Bruce Cherniak <bruce.cherniak at intel.com>

---

 src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp b/src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp
index 67e415cdcc..6fa60a17d9 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_mem.cpp
@@ -137,6 +137,7 @@ namespace SwrJit
         }
         else
         {
+            // maskload intrinsic expects integer mask operand in llvm >= 3.8
             mask = BITCAST(mask, VectorType::get(mInt32Ty, mVWidth));
             Function *func = Intrinsic::getDeclaration(JM()->mpCurrentModule, Intrinsic::x86_avx_maskload_ps_256);
             vResult = BITCAST(CALL(func, { src,mask }), VectorType::get(mInt32Ty, mVWidth));