diff options
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/nir/nir_opt_cse.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/src/glsl/nir/nir_opt_cse.c b/src/glsl/nir/nir_opt_cse.c index 56d491cf9b6..553906e1291 100644 --- a/src/glsl/nir/nir_opt_cse.c +++ b/src/glsl/nir/nir_opt_cse.c @@ -37,18 +37,19 @@ struct cse_state { }; static bool -nir_alu_srcs_equal(nir_alu_instr *alu1, nir_alu_instr *alu2, unsigned src) +nir_alu_srcs_equal(nir_alu_instr *alu1, nir_alu_instr *alu2, unsigned src1, + unsigned src2) { - if (alu1->src[src].abs != alu2->src[src].abs || - alu1->src[src].negate != alu2->src[src].negate) + if (alu1->src[src1].abs != alu2->src[src2].abs || + alu1->src[src1].negate != alu2->src[src2].negate) return false; - for (unsigned i = 0; i < nir_ssa_alu_instr_src_components(alu1, src); i++) { - if (alu1->src[src].swizzle[i] != alu2->src[src].swizzle[i]) + for (unsigned i = 0; i < nir_ssa_alu_instr_src_components(alu1, src1); i++) { + if (alu1->src[src1].swizzle[i] != alu2->src[src2].swizzle[i]) return false; } - return nir_srcs_equal(alu1->src[src].src, alu2->src[src].src); + return nir_srcs_equal(alu1->src[src1].src, alu2->src[src2].src); } static bool @@ -71,9 +72,17 @@ nir_instrs_equal(nir_instr *instr1, nir_instr *instr2) if (alu1->dest.dest.ssa.num_components != alu2->dest.dest.ssa.num_components) return false; - for (unsigned i = 0; i < nir_op_infos[alu1->op].num_inputs; i++) { - if (!nir_alu_srcs_equal(alu1, alu2, i)) - return false; + if (nir_op_infos[alu1->op].algebraic_properties & NIR_OP_IS_COMMUTATIVE) { + assert(nir_op_infos[alu1->op].num_inputs == 2); + return (nir_alu_srcs_equal(alu1, alu2, 0, 0) && + nir_alu_srcs_equal(alu1, alu2, 1, 1)) || + (nir_alu_srcs_equal(alu1, alu2, 0, 1) && + nir_alu_srcs_equal(alu1, alu2, 1, 0)); + } else { + for (unsigned i = 0; i < nir_op_infos[alu1->op].num_inputs; i++) { + if (!nir_alu_srcs_equal(alu1, alu2, i, i)) + return false; + } } return true; } |