[Mesa-dev] [PATCH v2 08/30] i965/fs: fix copy propagation from load payload

[Samuel Iglesias Gonsálvez]

From: Iago Toral Quiroga <itoral at igalia.com>

We were not considering the case where the load payload is writing to
a destination with a reg_offset > 0.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Francisco Jerez <currojerez at riseup.net>
---
 src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
index e9ed991..4791894 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
@@ -784,7 +784,7 @@ fs_visitor::opt_copy_propagate_local(void *copy_prop_ctx, bblock_t *block,
             if (inst->src[i].file == VGRF) {
                acp_entry *entry = ralloc(copy_prop_ctx, acp_entry);
                entry->dst = inst->dst;
-               entry->dst.reg_offset = offset;
+               entry->dst.reg_offset += offset;
                entry->src = inst->src[i];
                entry->regs_written = regs_written;
                entry->regs_read = inst->regs_read(i);
-- 
2.5.0