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| author | Cui, Lili <lili.cui@intel.com> | 2024-05-06 14:16:13 +0800 |
|---|---|---|
| committer | Cui, Lili <lili.cui@intel.com> | 2024-05-06 18:21:28 +0800 |
| commit | 0820c9f5fc13047b4b25361d6d3bb0ceb2a611d8 (patch) | |
| tree | e162ae8ce3c2e1820cb7a3f1d3edde9a9d8bd546 /gas/config/tc-i386.c | |
| parent | f2a3a8814da7c18144e517c11ac84ef6799b0534 (diff) | |
| download | binutils-0820c9f5fc13047b4b25361d6d3bb0ceb2a611d8.zip binutils-0820c9f5fc13047b4b25361d6d3bb0ceb2a611d8.tar.gz binutils-0820c9f5fc13047b4b25361d6d3bb0ceb2a611d8.tar.bz2 | |
x86: Drop SwapSources
gas/ChangeLog:
* config/tc-i386.c (build_modrm_byte): Dropped the use of
SWAP_SOURCES to encode the vvvv register.
opcodes/ChangeLog:
* i386-opc.h (SWAP_SOURCES): Dropped.
(NO_DEFAULT_MASK): Adjusted the value.
(ADDR_PREFIX_OP_REG): Ditto.
(DISTINCT_DEST): Ditto.
(IMPLICIT_STACK_OP): Ditto.
(VexVVVV_SRC2): New.
* i386-opc.tbl: Dropped SwapSources and replaced its VexVVVV
with Src1VVVV.
* i386-tbl.h: Regenerated.
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 3d9eaf0..9d50752 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -10439,6 +10439,17 @@ build_modrm_byte (void) switch (i.tm.opcode_modifier.vexvvvv) { + /* VEX.vvvv encodes the last source register operand. */ + case VexVVVV_SRC2: + if (source != op) + { + v = source++; + break; + } + /* For vprot*, vpshl*, and vpsha*, XOP.W controls the swapping of src1 + and src2, and it requires fall through when the operands are swapped. + */ + /* Fall through. */ /* VEX.vvvv encodes the first source register operand. */ case VexVVVV_SRC1: v = dest - 1; @@ -10459,14 +10470,6 @@ build_modrm_byte (void) dest = ~0; } gas_assert (source < dest); - if (i.tm.opcode_modifier.operandconstraint == SWAP_SOURCES - && source != op) - { - unsigned int tmp = source; - - source = v; - v = tmp; - } if (v < MAX_OPERANDS) { |