commit 93076f60d3a177ff2ec9c4b5662ff0ba69e3d0ec
author Rob Clark <robdclark@chromium.org> Mon Jul 20 10:36:13 2020 -0700
committer Marge Bot <eric+marge@anholt.net> Wed Aug 05 22:04:47 2020 +0000
tree 8c1ded7bec09e932674b86130aecaad5195d3148
parent 48a6255186d65d39d56b6a0d46067f70a4fdc13d

glsl: don't inline intrinsics for mediump

They have an empty fxn body, trying to handle them results in the
intrinsic call being expanded into a no-op.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6073>

src/compiler/glsl/lower_precision.cpp

diff --git a/src/compiler/glsl/lower_precision.cpp b/src/compiler/glsl/lower_precision.cpp
index 805b8d9..dcf6329 100644
--- a/src/compiler/glsl/lower_precision.cpp
+++ b/src/compiler/glsl/lower_precision.cpp
@@ -883,6 +883,7 @@
     */
 
    if (!ir->callee->is_builtin() ||
+       ir->callee->is_intrinsic() ||
        return_var == NULL ||
        (return_var->data.precision != GLSL_PRECISION_MEDIUM &&
         return_var->data.precision != GLSL_PRECISION_LOW))