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| author | Jan Beulich <jbeulich@suse.com> | 2023-02-22 14:12:24 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2023-02-22 14:12:24 +0100 |
| commit | ad2f44368092a4f111034fc1efc09cfa0de394a5 (patch) | |
| tree | c26308a260df725fc33fb9fa984603c4e94b3e7b /opcodes/i386-opc.tbl | |
| parent | 5e39600a691e3ba76acf6ab94edb24844c2e82b7 (diff) | |
| download | fsf-binutils-gdb-ad2f44368092a4f111034fc1efc09cfa0de394a5.zip fsf-binutils-gdb-ad2f44368092a4f111034fc1efc09cfa0de394a5.tar.gz fsf-binutils-gdb-ad2f44368092a4f111034fc1efc09cfa0de394a5.tar.bz2 | |
x86: optimize BT{,C,R,S} $imm,%reg
In 64-bit mode BT can have REX.W or a data size prefix dropped in
certain cases. Outside of 64-bit mode all 4 insns can have the data
size prefix dropped in certain cases.
Diffstat (limited to 'opcodes/i386-opc.tbl')
| -rw-r--r-- | opcodes/i386-opc.tbl | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl index 7355f3c..5bd7595 100644 --- a/opcodes/i386-opc.tbl +++ b/opcodes/i386-opc.tbl @@ -536,13 +536,13 @@ xlat, 0xd7, 0, No_wSuf|No_lSuf|No_sSuf|No_qSuf|IsString, { Byte|Unspecified|Base bsf, 0xfbc, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf|RepPrefixOk, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } bsr, 0xfbd, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf|RepPrefixOk, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } bt, 0xfa3, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } -bt, 0xfba/4, i386, Modrm|No_bSuf|No_sSuf, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } +bt, 0xfba/4, i386, Modrm|No_bSuf|No_sSuf|Optimize, { Imm8, Reg16|Reg32|Reg64|Unspecified|BaseIndex } btc, 0xfbb, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf|HLEPrefixLock, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } -btc, 0xfba/7, i386, Modrm|No_bSuf|No_sSuf|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } +btc, 0xfba/7, i386, Modrm|No_bSuf|No_sSuf|Optimize|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Unspecified|BaseIndex } btr, 0xfb3, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf|HLEPrefixLock, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } -btr, 0xfba/6, i386, Modrm|No_bSuf|No_sSuf|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } +btr, 0xfba/6, i386, Modrm|No_bSuf|No_sSuf|Optimize|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Unspecified|BaseIndex } bts, 0xfab, i386, Modrm|CheckOperandSize|No_bSuf|No_sSuf|HLEPrefixLock, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } -bts, 0xfba/5, i386, Modrm|No_bSuf|No_sSuf|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex } +bts, 0xfba/5, i386, Modrm|No_bSuf|No_sSuf|Optimize|HLEPrefixLock, { Imm8, Reg16|Reg32|Reg64|Unspecified|BaseIndex } // Interrupts & op. sys insns. // See gas/config/tc-i386.c for conversion of 'int $3' into the special |