[Mesa-dev] [PATCH] i965/fs: Fix implied_mrf_writes for scratch writes

Jason Ekstrand jason at jlekstrand.net
Tue May 19 17:37:04 PDT 2015


We build the entire message in the generator so all the MRF writes are
implied.
---
 src/mesa/drivers/dri/i965/brw_fs.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 9b3186b..42a0d78 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1050,7 +1050,7 @@ fs_visitor::implied_mrf_writes(fs_inst *inst)
    case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD:
       return inst->mlen;
    case SHADER_OPCODE_GEN4_SCRATCH_WRITE:
-      return 2;
+      return inst->mlen;
    case SHADER_OPCODE_UNTYPED_ATOMIC:
    case SHADER_OPCODE_UNTYPED_SURFACE_READ:
    case SHADER_OPCODE_UNTYPED_SURFACE_WRITE:
-- 
2.4.1



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