diff options
| author | Matt Turner <[email protected]> | 2017-08-02 23:20:00 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2017-08-21 14:05:23 -0700 |
| commit | a98b1a8922fa6990d0ab677770fc8ab6c9286a4b (patch) | |
| tree | 235289c40b54f75356a25c6e5b5d335d06f77b8b /src/intel/compiler/brw_inst.h | |
| parent | 91ef9490549567968a51bd8c68ebb60e47ebcdcb (diff) | |
i965: Optimize reading the destination type
brw_hw_type_to_reg_type() needs to know only whether the file is
BRW_IMMEDIATE_VALUE or not, which is not a valid file for the
destination. gcc and clang will evaluate __builtin_strcmp() at compile
time, so we can use it to pass a constant file for the destination.
text data bss dec hex filename
7816214 346248 420496 8582958 82f72e i965_dri.so before
7816070 346248 420496 8582814 82f69e i965_dri.so after
Reviewed-by: Scott D Phillips <[email protected]>
Diffstat (limited to 'src/intel/compiler/brw_inst.h')
| -rw-r--r-- | src/intel/compiler/brw_inst.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/intel/compiler/brw_inst.h b/src/intel/compiler/brw_inst.h index eacc0a024a7..e9dad38f699 100644 --- a/src/intel/compiler/brw_inst.h +++ b/src/intel/compiler/brw_inst.h @@ -669,7 +669,9 @@ static inline enum brw_reg_type \ brw_inst_##reg##_type(const struct gen_device_info *devinfo, \ const brw_inst *inst) \ { \ - unsigned file = brw_inst_##reg##_reg_file(devinfo, inst); \ + unsigned file = __builtin_strcmp("dst", #reg) == 0 ? \ + BRW_GENERAL_REGISTER_FILE : \ + brw_inst_##reg##_reg_file(devinfo, inst); \ unsigned hw_type = brw_inst_##reg##_reg_hw_type(devinfo, inst); \ return brw_hw_type_to_reg_type(devinfo, (enum brw_reg_file)file, hw_type); \ } |