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jay/lower_scoreboard: add asserts on key bounds

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if these are botched you get UB (-:

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41688>
This commit is contained in:
Alyssa Rosenzweig 2026-05-13 12:07:00 -04:00 • committed by Marge Bot
parent 4c97493b69
commit 4b0c3f5c32
1 changed files with 3 additions and 1 deletions
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4
src/intel/compiler/jay/jay_lower_scoreboard.c
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@ -157,6 +157,7 @@ lower_send_local(jay_function *func, jay_block *block)
typedef uint32_t u32_per_pipe[TGL_NUM_PIPES];
struct swsb_state {
uint32_t nr_keys;
unsigned ip[TGL_NUM_PIPES];
unsigned last_shape[TGL_NUM_PIPES];
@ -232,6 +233,7 @@ depend_on_writer(struct swsb_state *state,
bool except_exec)
{
for (unsigned i = 0; i < r.width; ++i) {
assert(r.base + i < state->nr_keys);
uint32_t w = state->access[r.base + i][0];
enum tgl_pipe write = writer_pipe(w);
@ -466,7 +468,7 @@ jay_lower_scoreboard(jay_shader *shader)
jay_foreach_function(shader, f) {
memset(access, 0, sizeof(*access) * nr_keys);
struct swsb_state state = { .access = access };
struct swsb_state state = { .nr_keys = nr_keys, .access = access };
jay_foreach_block(f, block) {
lower_send_local(f, block);