From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Fri, 17 Mar 2017 13:58:49 +0000 (+0100)
Subject: st/glsl_to_tgsi: enable lower_sqrt() conditionally
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7a0ecbfffd5b0c815dc1c55fdfcbdae3f59b6127;p=mesa.git

st/glsl_to_tgsi: enable lower_sqrt() conditionally

It relies on the force_glsl_abs_sqrt driconf option.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c53da293222..5bfcc73a3b2 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -6972,6 +6972,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
                          (options->EmitNoPow ? POW_TO_EXP2 : 0) |
                          (!ctx->Const.NativeIntegers ? INT_DIV_TO_MUL_RCP : 0) |
                          (options->EmitNoSat ? SAT_TO_CLAMP : 0) |
+                         (ctx->Const.ForceGLSLAbsSqrt ? SQRT_TO_ABS_SQRT : 0) |
                          /* Assume that if ARB_gpu_shader5 is not supported
                           * then all of the extended integer functions need
                           * lowering.  It may be necessary to add some caps