diff options
| author | 2025-11-09 12:01:07 +0100 | |
|---|---|---|
| committer | 2025-11-09 12:01:07 +0100 | |
| commit | 28940713d99ed18cdf650334cf768158bba71dda (patch) | |
| tree | c173688973c276ea581ca9d133badd6dd1c91802 /amd64/emit.c | |
| parent | bbd63e77f8c8b5cf66c7cf594e5eef4c937428aa (diff) | |
amd64: get rid of xinc/xdec. handle those at emit stage
Diffstat (limited to 'amd64/emit.c')
| -rw-r--r-- | amd64/emit.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/amd64/emit.c b/amd64/emit.c index aa041c3..946f396 100644 --- a/amd64/emit.c +++ b/amd64/emit.c @@ -185,6 +185,7 @@ enum operpat { PGPR, PFPR, P1, /* imm = 1 */ + PN1, /* imm = -1 */ PI8, PU8, PI16, @@ -233,6 +234,7 @@ opermatch(enum operpat pat, struct oper oper) case PGPR: return oper.t == OREG && oper.reg <= R15; case PFPR: return oper.t == OREG && oper.reg >= XMM0; case P1: return oper.t == OIMM && oper.imm == 1; + case PN1: return oper.t == OIMM && oper.imm == -1; case PI8: return oper.t == OIMM && (schar)oper.imm == oper.imm; case PU8: return oper.t == OIMM && (uchar)oper.imm == oper.imm; case PI16: return oper.t == OIMM && (short)oper.imm == oper.imm; @@ -526,6 +528,8 @@ DEFINSTR2(Xlea, ) DEFINSTR2(Xadd, {4|8, PGPR, PGPR, "\x03", EN_RR}, /* ADD r32/64, r32/64 */ + {4|8, PGPR, P1, "\xFF", EN_R, .ext=0}, /* INC r32/64 */ + {4|8, PGPR, PN1, "\xFF", EN_R, .ext=1}, /* DEC r32/64 */ {4|8, PGPR, PI8, "\x83", EN_RI8}, /* ADD r32/64, imm8 */ {4|8, PRAX, PI32, "\x05", EN_I32}, /* ADD eax/rax, imm */ {4|8, PGPR, PI32, "\x81", EN_RI32}, /* ADD r32/64, imm */ @@ -539,6 +543,8 @@ DEFINSTR2(Xaddf, ) DEFINSTR2(Xsub, {4|8, PGPR, PGPR, "\x2B", EN_RR}, /* SUB r32/64, r32/64 */ + {4|8, PGPR, P1, "\xFF", EN_R, .ext=1}, /* DEC r32/64 */ + {4|8, PGPR, PN1, "\xFF", EN_R, .ext=0}, /* INC r32/64 */ {4|8, PGPR, PI8, "\x83", EN_RI8, .ext=5}, /* SUB r32/64, imm8 */ {4|8, PRAX, PI32, "\x2D", EN_I32}, /* SUB eax/rax, imm */ {4|8, PGPR, PI32, "\x81", EN_RI32, .ext=5}, /* SUB r32/64, imm */ @@ -624,12 +630,6 @@ DEFINSTR2(Xcvttsd2si, {-1, PGPR, PFPR, "\xF2\x0F\x2C", EN_RR}, /* CVTTSD2SI r32/64, xmm */ {-1, PGPR, PMEM, "\xF2\x0F\x2C", EN_RM}, /* CVTTSD2SI r32/64, m32 */ ) -DEFINSTR1(Xinc, - {4|8, PGPR, 0, "\xFF", EN_R, .ext=0} /* INC r32/64 */ -) -DEFINSTR1(Xdec, - {4|8, PGPR, 0, "\xFF", EN_R, .ext=1} /* DEC r32/64 */ -) DEFINSTR1(Xneg, {4|8, PGPR, 0, "\xF7", EN_R, .ext=3} /* NEG r32/64 */ ) @@ -992,8 +992,6 @@ emitinstr(uchar **pcode, struct function *fn, struct block *blk, int curi, struc assert(ins->reg-1 == dst.reg); X(pcode, cls, dst, mkimmdatregoper(ins->r)); break; - case Oxinc: X1 = Xinc; goto ALU1; - case Oxdec: X1 = Xdec; goto ALU1; case Oneg: X1 = Xneg; goto ALU1; case Onot: X1 = Xnot; goto ALU1; ALU1: |