diff options
| -rw-r--r-- | src/compiler/nir/nir_range_analysis.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/compiler/nir/nir_range_analysis.c b/src/compiler/nir/nir_range_analysis.c index b7a2f20d473..6dfaea167ac 100644 --- a/src/compiler/nir/nir_range_analysis.c +++ b/src/compiler/nir/nir_range_analysis.c @@ -610,9 +610,16 @@ analyze_expression(const nir_alu_instr *instr, unsigned src, r = (struct ssa_result_range){analyze_expression(alu, 0, ht).range, false}; break; - case nir_op_mov: - r = analyze_expression(alu, 0, ht); + case nir_op_mov: { + const struct ssa_result_range left = analyze_expression(alu, 0, ht); + + /* See commentary in nir_op_bcsel for the reasons this is necessary. */ + if (nir_src_is_const(alu->src[0].src) && left.range != eq_zero) + return (struct ssa_result_range){unknown, false}; + + r = left; break; + } case nir_op_fneg: r = analyze_expression(alu, 0, ht); |