From: Paul Berry <stereotype...@gmail.com>
Fixes an assertion failure when compiling certain shaders that need both
pull constants and register spilling:
brw_eu_emit.c:204: validate_reg: Assertion `execsize >= width' failed.
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
Patch contents by Paul; commit message by me.
diff --git a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
index e7f11ae..a819ae0 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
@@ -317,11 +317,19 @@ fs_visitor::choose_spill_reg(struct ra_graph *g)
for (unsigned int i = 0; i < 3; i++) {
if (inst->src[i].file == GRF) {
spill_costs[inst->src[i].reg] += loop_scale;
+
+ if (inst->src[i].smear >= 0) {
+ no_spill[inst->src[i].reg] = true;
+ }
}
}
if (inst->dst.file == GRF) {
spill_costs[inst->dst.reg] += inst->regs_written() * loop_scale;
+
+ if (inst->dst.smear >= 0) {
+ no_spill[inst->dst.reg] = true;
+ }
}
switch (inst->opcode) {
--
1.7.11.4
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