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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp3
-rw-r--r--src/mesa/drivers/dri/intel/intel_context.c1
-rw-r--r--src/mesa/drivers/dri/intel/intel_context.h1
3 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index ae26d07e03d..0d2dde72be4 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2585,7 +2585,8 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c,
exec_list *simd16_instructions = NULL;
fs_visitor v2(brw, c, prog, fp, 16);
- if (intel->gen >= 5 && c->prog_data.nr_pull_params == 0) {
+ bool no16 = INTEL_DEBUG & DEBUG_NO16;
+ if (intel->gen >= 5 && c->prog_data.nr_pull_params == 0 && likely(!no16)) {
v2.import_uniforms(&v);
if (!v2.run()) {
perf_debug("16-wide shader failed to compile, falling back to "
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index f3f99836e9b..798fc6ae884 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -493,6 +493,7 @@ static const struct dri_debug_control debug_control[] = {
{ "clip", DEBUG_CLIP },
{ "aub", DEBUG_AUB },
{ "shader_time", DEBUG_SHADER_TIME },
+ { "no16", DEBUG_NO16 },
{ NULL, 0 }
};
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index dbc5ea02bcf..7ce7c2542a3 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -444,6 +444,7 @@ extern int INTEL_DEBUG;
#define DEBUG_CLIP 0x2000000
#define DEBUG_AUB 0x4000000
#define DEBUG_SHADER_TIME 0x8000000
+#define DEBUG_NO16 0x20000000
#ifdef HAVE_ANDROID_PLATFORM
#define LOG_TAG "INTEL-MESA"