In try_fold_load_store when trying to extract const addition from
non-const offset source, we should take into account that there is
already a constant base offset, which should count towards the limit.
The issue was found in "Monster Hunter: World" running on Turnip.
Fixes:
cac6f633b21799bd1ecc35471d73a0bd190ccada
("nir/opt_offsets: Use nir_ssa_scalar to chase offset additions.")
Well, the issue was present before this commit but it made a lot
of changes in surrounding code.
Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20099>
(cherry picked from commit
5d025f4003b34c3540b62f9146a5e68da7756cf2)
"description": "nir/nir_opt_offsets: Prevent offsets going above max",
"nominated": true,
"nomination_type": 1,
- "resolution": 0,
+ "resolution": 1,
"main_sha": null,
"because_sha": "cac6f633b21799bd1ecc35471d73a0bd190ccada"
},
if (!nir_src_is_const(*off_src)) {
uint32_t add_offset = 0;
nir_ssa_scalar val = {.def = off_src->ssa, .comp = 0};
- val = try_extract_const_addition(b, val, state, &add_offset, max);
+ val = try_extract_const_addition(b, val, state, &add_offset, max - off_const);
if (add_offset == 0)
return false;
off_const += add_offset;
return false;
nir_instr_rewrite_src(&intrin->instr, &intrin->src[offset_src_idx], nir_src_for_ssa(replace_src));
+
+ assert(off_const <= max);
nir_intrinsic_set_base(intrin, off_const);
return true;
}