diff options
Diffstat (limited to 'amd64/emit.c')
| -rw-r--r-- | amd64/emit.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/amd64/emit.c b/amd64/emit.c index c1f01a3..f872b49 100644 --- a/amd64/emit.c +++ b/amd64/emit.c @@ -238,10 +238,10 @@ DEFINSTR2(Xmov, {4|8, PGPR, PMEM, "\x8B", EN_RM}, /* MOV r32/64, m32/64 */ {4|8, PGPR, PI32, "\xB8", EN_OI}, /* MOV r32/64, imm */ {4, PFPR, PFPR, "\xF3\x0F\x10", EN_RR}, /* MOVSS xmm, xmm */ - {4, PFPR, PMEM, "\xF3\x0F\x10", EN_RM}, /* MOVSS xmm, m32 */ - {4, PMEM, PFPR, "\xF3\x0F\x10", EN_MR}, /* MOVSS m32, xmm */ {8, PFPR, PFPR, "\xF2\x0F\x10", EN_RR}, /* MOVSD xmm, xmm */ + {4, PFPR, PMEM, "\xF3\x0F\x10", EN_RM}, /* MOVSS xmm, m32 */ {8, PFPR, PMEM, "\xF2\x0F\x10", EN_RM}, /* MOVSD xmm, m64 */ + {4, PMEM, PFPR, "\xF3\x0F\x10", EN_MR}, /* MOVSS m32, xmm */ {8, PMEM, PFPR, "\xF2\x0F\x11", EN_MR}, /* MOVSS m64, xmm */ ) DEFINSTR2(Xmovsx4, @@ -291,6 +291,14 @@ DEFINSTR2(Xsub, {4, PFPR, PMEM, "\xF3\x0F\x5C", EN_RM}, /* SUBSS xmm, m32 */ {8, PFPR, PMEM, "\xF2\x0F\x5C", EN_RM}, /* SUBSD xmm, m64 */ ) +DEFINSTR2(Xxor, + {4|8, PGPR, PGPR, "\x33", EN_RR}, /* XOR r32/64, r32/64 */ + {4|8, PGPR, PI8, "\x83", EN_RI8, .ext=6}, /* XOR r32/64, imm8 */ + {4|8, PRAX, PI32, "\x35", EN_I32}, /* XOR eax/rax, imm */ + {4|8, PGPR, PI32, "\x81", EN_RI32, .ext=6}, /* XOR r32/64, imm */ + { 8, PGPR, PMEM, "\x33", EN_RM}, /* XOR r64, m64 */ + {4|8, PFPR, PFPR, "\x0F\x57", EN_RR}, /* XORPS xmm, xmm */ +) DEFINSTR2(Xshl, {4|8, PGPR, P1, "\xD1", EN_R, .ext=4}, /* SHL r32/64, 1 */ {4|8, PGPR, PI32, "\xC1", EN_RI8, .ext=4}, /* SHL r32/64, imm */ @@ -431,10 +439,12 @@ gencopy(uchar **pcode, enum irclass cls, struct oper dst, union ref val) /* normal (not 2-address) case */ Lea: Xlea(pcode, cls2siz[cls], dst, ref2oper(val)); + } else if (val.t == RICON && val.i == 0 && dst.t == OREG) { + Xxor(pcode, cls2siz[cls], dst, dst); } else if (val.t == RXCON && conht[val.i].isdat && !conht[val.i].deref) { Xlea(pcode, cls2siz[cls], dst, mkoper(OCONR, .con = val.i)); } else { - struct oper src = mkimmregoper(val); + struct oper src = mkimmdatregoper(val); if (memcmp(&dst, &src, sizeof dst) != 0) Xmov(pcode, cls2siz[cls], dst, src); } |