Fixes scheduler hang in:
dEQP-GLES31.functional.shaders.opaque_type_indexing.ubo.const_literal_compute
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6516>
mir_set_offset(ctx, &ins, offset, is_shared);
mir_set_intr_mask(instr, &ins, is_read);
+ /* Set a valid swizzle for masked out components */
+ assert(ins.mask);
+ unsigned first_component = __builtin_ffs(ins.mask) - 1;
+
+ for (unsigned i = 0; i < ARRAY_SIZE(ins.swizzle[0]); ++i) {
+ if (!(ins.mask & (1 << i)))
+ ins.swizzle[0][i] = first_component;
+ }
+
emit_mir_instruction(ctx, ins);
}