diff options
| author | Homer Hsing <homer.xing@intel.com> | 2012-09-18 13:47:22 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2012-09-26 23:27:00 -0400 |
| commit | 2cf920f234608f951198b9bec0281de4068bcebe (patch) | |
| tree | 51394830536ff2feb63e11827bc278e484ee4585 | |
| parent | 8c59c185c22ec52a27de4324882a286df116d8d1 (diff) | |
According to BSPEC, put PLN & BFI1 to binaryop, put SUBB to binaryaccop
bspec: BFI1 should not access accumulator. PLN should not use accumulator
as source.
future work in gram.y: show warning if acc is used as dest for
ADDC/SUBB/CMP/CMPN/SHL/BFI1.
| -rw-r--r-- | src/gram.y | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -454,7 +454,8 @@ binaryinstruction: } ; -binaryop: MUL | MAC | MACH | LINE | SAD2 | SADA2 | DP4 | DPH | DP3 | DP2 | SUBB +/* bspec: BFI1 should not access accumulator. */ +binaryop: MUL | MAC | MACH | LINE | SAD2 | SADA2 | DP4 | DPH | DP3 | DP2 | PLN | BFI1 ; // Source operands can be accumulators @@ -492,8 +493,8 @@ binaryaccinstruction: } ; -binaryaccop: AVG | ADD | SEL | AND | OR | XOR | SHR | SHL | ASR | CMP | CMPN | PLN - | ADDC | BFI1 +/* TODO: bspec says ADDC/SUBB/CMP/CMPN/SHL/BFI1 cannot use accumulator as dest. */ +binaryaccop: AVG | ADD | SEL | AND | OR | XOR | SHR | SHL | ASR | CMP | CMPN | ADDC | SUBB ; trinaryop: MAD | LRP | BFE | BFI2 |