diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index e1ab59854e6..e0c2fa01ce3 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -701,7 +701,14 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr) break; case nir_op_fsign: { - if (type_sz(op[0].type) < 8) { + if (op[0].abs) { + /* Straightforward since the source can be assumed to be + * non-negative. + */ + set_condmod(BRW_CONDITIONAL_NZ, bld.MOV(result, op[0])); + set_predicate(BRW_PREDICATE_NORMAL, bld.MOV(result, brw_imm_f(1.0f))); + + } else if (type_sz(op[0].type) < 8) { /* AND(val, 0x80000000) gives the sign bit. * * Predicated OR ORs 1.0 (0x3f800000) with the sign bit if val is not |