GLSL IR vs. NIR shader-db results for SIMD8 vertex shaders on Broadwell:
total instructions in shared programs: 2724483 -> 2711790 (-0.47%)
instructions in affected programs: 1860859 -> 1848166 (-0.68%)
helped: 4387
HURT: 4758
GAINED: 1499
The gained programs are ARB vertext programs that were previously going
through the vec4 backend. Now that we have prog_to_nir, ARB vertex
programs can go through the scalar backend so they show up as "gained" in
the shader-db results.
---
src/mesa/drivers/dri/i965/brw_context.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_context.c
b/src/mesa/drivers/dri/i965/brw_context.c
index fd7420a..8615e5e 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -588,7 +588,7 @@ brw_initialize_context_constants(struct brw_context *brw)
ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoIndirectTemp
= true;
ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS =
false;
- if (brw_env_var_as_boolean("INTEL_USE_NIR", false))
+ if (brw_env_var_as_boolean("INTEL_USE_NIR", true))
ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].NirOptions =
&nir_options;
}
--
2.4.0
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