From: Jason Ekstrand Date: Thu, 7 May 2015 22:07:49 +0000 (-0700) Subject: i965: Use NIR by default for vertex shaders on GEN8+ X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=42298b05d1ebd8b17b89411723ae13295643e496;p=mesa.git i965: Use NIR by default for vertex shaders on GEN8+ GLSL IR vs. NIR shader-db results for SIMD8 vertex shaders on Broadwell: total instructions in shared programs: 2742062 -> 2681339 (-2.21%) instructions in affected programs: 1514770 -> 1454047 (-4.01%) helped: 5813 HURT: 1120 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. Acked-by: Kenneth Graunke Reviewed-by: Ian Romanick Acked-by: Matt Turner --- diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 673529a28cd..ea56859707b 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -590,7 +590,7 @@ 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; }