diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/intel/compiler/brw_fs.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index 337dde63848..86cd5b96986 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -464,6 +464,24 @@ fs_inst::can_do_source_mods(const struct gen_device_info *devinfo) const if (is_send_from_grf()) return false; + /* From GEN:BUG:1604601757: + * + * "When multiplying a DW and any lower precision integer, source modifier + * is not supported." + */ + if (devinfo->gen >= 12 && (opcode == BRW_OPCODE_MUL || + opcode == BRW_OPCODE_MAD)) { + const brw_reg_type exec_type = get_exec_type(this); + const unsigned min_type_sz = opcode == BRW_OPCODE_MAD ? + MIN2(type_sz(src[1].type), type_sz(src[2].type)) : + MIN2(type_sz(src[0].type), type_sz(src[1].type)); + + if (brw_reg_type_is_integer(exec_type) && + type_sz(exec_type) >= 4 && + type_sz(exec_type) != min_type_sz) + return false; + } + if (!backend_instruction::can_do_source_mods()) return false; |