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i965/compiler: Bring back the INTEL_PRECISE_TRIG environment variable

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This was removed in d9546b0c5d and replced with the precise_trig driconf
option.  However, we still need precise trig in the Vulkan driver so this
commit brings back the environment variable and compiler->precise_trig is
effectively the logical OR of the two.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96484
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Jason Ekstrand 2016-06-11 13:17:27 -07:00
parent a0ed8503b7
commit be32a21327
2 changed files with 4 additions and 2 deletions
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2
src/mesa/drivers/dri/i965/brw_compiler.c
View file

@ -103,6 +103,8 @@ brw_compiler_create(void *mem_ctx, const struct brw_device_info *devinfo)
brw_fs_alloc_reg_sets(compiler);
brw_vec4_alloc_reg_set(compiler);
compiler->precise_trig = env_var_as_boolean("INTEL_PRECISE_TRIG", false);
compiler->scalar_stage[MESA_SHADER_VERTEX] =
devinfo->gen >= 8 && !(INTEL_DEBUG & DEBUG_VEC4VS);
compiler->scalar_stage[MESA_SHADER_TESS_CTRL] =

4
src/mesa/drivers/dri/i965/brw_context.c
View file

@ -803,8 +803,8 @@ brw_process_driconf_options(struct brw_context *brw)
brw->precompile = driQueryOptionb(&brw->optionCache, "shader_precompile");
brw->intelScreen->compiler->precise_trig =
driQueryOptionb(&brw->optionCache, "precise_trig");
if (driQueryOptionb(&brw->optionCache, "precise_trig"))
brw->intelScreen->compiler->precise_trig = true;
ctx->Const.ForceGLSLExtensionsWarn =
driQueryOptionb(options, "force_glsl_extensions_warn");