Mesa (master): glsl: don't inline intrinsics for mediump

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Module: Mesa
Branch: master
Commit: 93076f60d3a177ff2ec9c4b5662ff0ba69e3d0ec
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=93076f60d3a177ff2ec9c4b5662ff0ba69e3d0ec

Author: Rob Clark <robdclark at chromium.org>
Date:   Mon Jul 20 10:36:13 2020 -0700

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 at amd.com>
Reviewed-by: Rob Clark <robdclark at chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6073>

---

 src/compiler/glsl/lower_precision.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/compiler/glsl/lower_precision.cpp b/src/compiler/glsl/lower_precision.cpp
index 805b8d975a7..dcf632983f9 100644
--- a/src/compiler/glsl/lower_precision.cpp
+++ b/src/compiler/glsl/lower_precision.cpp
@@ -883,6 +883,7 @@ find_precision_visitor::visit_enter(ir_call *ir)
     */
 
    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))