fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-03 11:30:21 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

glsl: Lower vector_extracts to swizzles after lower_vector_derefs.

Browse source 
lower_vector_derefs can produce new vector_extract operations.
Neither i965 nor st_glsl_to_tgsi can handle them, so we'd best
convert them to swizzles.

Together with the previous patch, this fixes assertion failures in
GLideN64, as well as a new Piglit test which reproduces the issue:
spec/glsl-1.10/compiler/vector-dereference-in-dereference.frag

Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95164
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Kenneth Graunke 2016-04-27 21:07:07 -07:00
parent 1cd600dbb9
commit 750c38fad1
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/compiler/glsl/linker.cpp
View file

@ -4813,6 +4813,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
&prog->Comp.SharedSize);
lower_vector_derefs(prog->_LinkedShaders[i]);
do_vec_index_to_swizzle(prog->_LinkedShaders[i]->ir);
}
done: