[Mesa-dev] [PATCH 2/3] i965: Avoid crashing while dumping vec4 insn operands

[Chris Forbes]

We'd otherwise go looking into virtual_grf_sizes for things that aren't
in there at all.

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
---
 src/mesa/drivers/dri/i965/brw_vec4.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 5ba7d9c..4b7576a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1337,7 +1337,9 @@ vec4_visitor::dump_instruction(backend_instruction *be_inst, FILE *file)
          break;
       }
 
-      if (virtual_grf_sizes[inst->src[i].reg] != 1)
+      if (inst->src[i].reg_offset &&
+          inst->src[i].file == GRF &&
+          virtual_grf_sizes[inst->src[i].reg] != 1)
          fprintf(file, ".%d", inst->src[i].reg_offset);
 
       if (inst->src[i].file != IMM) {
-- 
2.0.1