[Mesa-dev] [PATCH 3/6] i965: Don't leak the IR annotation into later instructions.

[Eric Anholt]

After walking our IR instructions (Mesa or GLSL), we don't want to also
mark the start of the FB/URB writes or whatever as being that IR.  This
can end up being misleading when the end of the IR visit got copy
propagated out to a later instruction in the URB writes.
---
 src/mesa/drivers/dri/i965/brw_fs.cpp   |    1 +
 src/mesa/drivers/dri/i965/brw_vec4.cpp |    1 +
 2 files changed, 2 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp 
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index ee3b7fd..b777172 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2158,6 +2158,7 @@ fs_visitor::run()
       } else {
          emit_fragment_program_code();
       }
+      base_ir = NULL;
       if (failed)
         return false;
 
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp 
b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 34c34d7..1a199d6 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1052,6 +1052,7 @@ vec4_visitor::run()
    } else {
       emit_vertex_program_code();
    }
+   base_ir = NULL;
 
    if (c->key.userclip_active && !c->key.uses_clip_distance)
       setup_uniform_clipplane_values();
-- 
1.7.10.4

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