Mesa (master): st/glsl_to_tgsi: enable lower_sqrt() conditionally

[Samuel Pitoiset]

Module: Mesa
Branch: master
Commit: 7a0ecbfffd5b0c815dc1c55fdfcbdae3f59b6127
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7a0ecbfffd5b0c815dc1c55fdfcbdae3f59b6127

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Fri Mar 17 14:58:49 2017 +0100

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 at gmail.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>

---

 src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c53da29322..5bfcc73a3b 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