i965/compiler: Bring back the INTEL_PRECISE_TRIG environment variable

[mesa.git] / src / mesa / drivers / dri / i965 / brw_compiler.c

diff --git a/src/mesa/drivers/dri/i965/brw_compiler.c b/src/mesa/drivers/dri/i965/brw_compiler.c
index 9eda3fc0b1d5766844e4b95fa805b71394ad525d..a4855a0913762d45ba27c9ea6c8a337af68d5b84 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_compiler.c
+++ b/src/mesa/drivers/dri/i965/brw_compiler.c
@@ -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] =