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authorHein-Pieter van Braam <hp@tmm.cx>2019-01-18 16:22:22 +0100
committerHein-Pieter van Braam <hp@tmm.cx>2019-01-18 16:31:37 +0100
commit6793908a3f243c846c516f9b0c4a05d1a6dedd25 (patch)
tree3962e27a7eb450d2b9b9d981a1dc5da564c7e583 /drivers/gles3
parent1efd37f1b77d71c652fe28a50f42c5284d5ef4ec (diff)
Work around a GCC optimizer bug at -O3
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
Diffstat (limited to 'drivers/gles3')
-rw-r--r--drivers/gles3/rasterizer_scene_gles3.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp
index 0e030d13a5..d1d063ad5b 100644
--- a/drivers/gles3/rasterizer_scene_gles3.cpp
+++ b/drivers/gles3/rasterizer_scene_gles3.cpp
@@ -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) {