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Work around a GCC optimizer bug at -O3

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This bug has been reported upstream, once it gets fixed we'll add some
version guards to only disable this for specific GCC versions.

This fixes #19633
This commit is contained in:
Hein-Pieter van Braam 2019-01-18 16:22:22 +01:00
parent 1efd37f1b7
commit 6793908a3f
1 changed files with 6 additions and 0 deletions
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6
drivers/gles3/rasterizer_scene_gles3.cpp
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@ -2677,6 +2677,11 @@ void RasterizerSceneGLES3::_setup_environment(Environment *env, const CameraMatr
glBindBuffer(GL_UNIFORM_BUFFER, 0);
}
// Drop -O3 for this function as it triggers a GCC bug up until at least GCC 8.2.1.
// This refers to GH issue #19633.
// The bug has been reported to the GCC project.
#pragma GCC push_options
#pragma GCC optimize ("-O2")
void RasterizerSceneGLES3::_setup_directional_light(int p_index, const Transform &p_camera_inverse_transform, bool p_use_shadows) {
LightInstance *li = directional_lights[p_index];
@ -2794,6 +2799,7 @@ void RasterizerSceneGLES3::_setup_directional_light(int p_index, const Transform
glBindBufferBase(GL_UNIFORM_BUFFER, 3, state.directional_ubo);
}
#pragma GCC pop_options
void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result, int p_light_cull_count, const Transform &p_camera_inverse_transform, const CameraMatrix &p_camera_projection, RID p_shadow_atlas) {