These can happen, for example, in tessellation evaluation when it maps
incoming attributes to FIXED_GRF registers. In this case, just as with
VGRFs, we need to make sure we have vstride=0 for these to work.
---
src/mesa/drivers/dri/i965/brw_vec4.cpp | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp
b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 7ea94cd..f92abe3 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -2328,9 +2328,8 @@ vec4_visitor::expand_64bit_swizzle_to_32bit()
if ((inst->dst.writemask & WRITEMASK_ZW) &&
(inst->src[arg].swizzle == BRW_SWIZZLE_XXXX ||
inst->src[arg].swizzle == BRW_SWIZZLE_YYYY) &&
- inst->src[arg].file == VGRF) {
+ inst->src[arg].file != UNIFORM)
inst->src[arg].force_vstride0 = true;
- }
}
/* Any DF source with a subnr > 0 is intended to address the second
--
2.7.4
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