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-rw-r--r--gas/config/tc-i386.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 69b2670..b1cc068 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -9264,6 +9264,9 @@ match_template (char mnem_suffix)
flipping VEX.W. */
i.tm.opcode_modifier.vexw ^= VEXW0 ^ VEXW1;
+ /* In 3-operand insns XOP.W changes which operand goes into XOP.vvvv. */
+ i.tm.opcode_modifier.vexvvvv = VexVVVV_SRC1;
+
swap_first_2:
j = i.tm.operand_types[0].bitfield.imm8;
i.tm.operand_types[j] = operand_types[j + 1];
@@ -10471,15 +10474,8 @@ build_modrm_byte (void)
{
/* 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. */
+ v = source++;
+ break;
/* VEX.vvvv encodes the first source register operand. */
case VexVVVV_SRC1:
v = dest - 1;