From 18e096769c48ac11d6be881ad595dbf3ed6ac0ce Mon Sep 17 00:00:00 2001
From: Emma Anholt <emma@anholt.net>
Date: Wed, 1 Mar 2023 16:02:38 -0800
Subject: [PATCH] glsl: Set the precision of function return value temporaries.
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The signature should dictate the precision of the temp we store into.
This ends up ignored by lower_precision for now, which always rewrites it
so as to handle custom lowering of builtin precision..

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21666>
---
 src/compiler/glsl/ast_function.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/compiler/glsl/ast_function.cpp b/src/compiler/glsl/ast_function.cpp
index 64c7517b4cc..65cc825d075 100644
--- a/src/compiler/glsl/ast_function.cpp
+++ b/src/compiler/glsl/ast_function.cpp
@@ -651,6 +651,7 @@ generate_call(exec_list *instructions, ir_function_signature *sig,
       ir_variable *var;
 
       var = new(ctx) ir_variable(sig->return_type, name, ir_var_temporary);
+      var->data.precision = sig->return_precision;
       instructions->push_tail(var);
 
       ralloc_free(name);