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aco: use nir_def_all_uses_ignore_sign_bit

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Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31844>
This commit is contained in:
Georg Lehmann 2024-10-25 15:43:35 +02:00 • committed by Marge Bot
parent 7d5db1ee52
commit 7e8a08ae77
1 changed files with 2 additions and 11 deletions
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13
src/amd/compiler/aco_instruction_selection.cpp
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@ -8544,18 +8544,9 @@ visit_intrinsic(isel_context* ctx, nir_intrinsic_instr* instr)
Temp src = as_vgpr(ctx, get_ssa_temp(ctx, instr->src[0].ssa));
Temp dst = get_ssa_temp(ctx, &instr->def);
bool only_used_by_abs = true;
nir_foreach_use (use, &instr->def) {
nir_instr* use_instr = nir_src_parent_instr(use);
if (use_instr->type != nir_instr_type_alu ||
nir_instr_as_alu(use_instr)->op != nir_op_fabs)
only_used_by_abs = false;
}
uint16_t dpp_ctrl1, dpp_ctrl2;
if (instr->intrinsic == nir_intrinsic_ddx_fine) {
if (only_used_by_abs) {
if (nir_def_all_uses_ignore_sign_bit(&instr->def)) {
dpp_ctrl1 = dpp_quad_perm(1, 0, 3, 2);
dpp_ctrl2 = dpp_quad_perm(0, 1, 2, 3);
} else {
@ -8563,7 +8554,7 @@ visit_intrinsic(isel_context* ctx, nir_intrinsic_instr* instr)
dpp_ctrl2 = dpp_quad_perm(1, 1, 3, 3);
}
} else if (instr->intrinsic == nir_intrinsic_ddy_fine) {
if (only_used_by_abs) {
if (nir_def_all_uses_ignore_sign_bit(&instr->def)) {
dpp_ctrl1 = dpp_quad_perm(2, 3, 0, 1);
dpp_ctrl2 = dpp_quad_perm(0, 1, 2, 3);
} else {