// R_r(decor) applies decoration decor to register r, which is an internal
// register name. The internal register names are: `ip', `a', `b', `c', `d',
// `si', `di', `bp', `sp', `r8'--`r15'.
+#define R_nil(decor) nil
#define R_ip(decor) _DECOR(ip, decor, ip)
#define R_a(decor) _DECOR(abcd, decor, a)
#define R_b(decor) _DECOR(abcd, decor, b)
// assembler-level register name, in place of any decoration that register
// name has already.
+#define _REGFORM_nil(decor) R_nil(decor)
+
#define _REGFORM_ip(decor) R_ip(decor)
#define _REGFORM_eip(decor) R_ip(decor)
#endif
#define WHOLE(reg) _REGFORM(reg, r)
+// Macros for some common registers.
+#define AX R_a(r)
+#define BX R_b(r)
+#define CX R_c(r)
+#define DX R_d(r)
+#define SI R_si(r)
+#define DI R_di(r)
+#define BP R_bp(r)
+#define SP R_sp(r)
+
// Stack management and unwinding.
-.macro setfp fp=R_bp(r), offset=0
+.macro setfp fp=BP, offset=0
.if \offset == 0
- mov \fp, R_sp(r)
+ mov \fp, SP
#if __ELF__
.cfi_def_cfa_register \fp
#endif
.seh_setframe \fp, 0
#endif
.else
- lea \fp, [R_sp(r) + \offset]
+ lea \fp, [SP + \offset]
#if __ELF__
.cfi_def_cfa_register \fp
.cfi_adjust_cfa_offset -\offset
.macro _dropfp fp, offset=0
.if \offset == 0
- mov R_sp(r), \fp
+ mov SP, \fp
#if __ELF__
- .cfi_def_cfa_register R_sp(r)
+ .cfi_def_cfa_register SP
#endif
.else
- lea R_sp(r), [\fp - \offset]
+ lea SP, [\fp - \offset]
#if __ELF__
- .cfi_def_cfa_register R_sp(r)
+ .cfi_def_cfa_register SP
.cfi_adjust_cfa_offset +\offset
#endif
.endif
.endm
.macro stalloc n
- sub R_sp(r), \n
+ sub SP, \n
#if __ELF__
.cfi_adjust_cfa_offset +\n
#endif
.endm
.macro stfree n
- add R_sp(r), \n
+ add SP, \n
#if __ELF__
.cfi_adjust_cfa_offset -\n
#endif
.endm
.macro savexmm r, offset
- movdqa [R_sp(r) + \offset], \r
+ movdqa [SP + \offset], \r
#if ABI_WIN && CPUFAM_AMD64
.seh_savexmm \r, \offset
#endif
.endm
.macro rstrxmm r, offset
- movdqa \r, [R_sp(r) + \offset]
+ movdqa \r, [SP + \offset]
.endm
.macro endprologue
// Internal macros: `_REGFORM_r(decor)' applies decoration decor to register
// name r.
+#define _REGFORM_nil(decor) nil
+
#define _REGFORM_s0(decor) _DECOR(s, decor, 0)
#define _REGFORM_s1(decor) _DECOR(s, decor, 1)
#define _REGFORM_s2(decor) _DECOR(s, decor, 2)
ext \vd\().16b, \vn\().16b, \vz\().16b, #\nbit >> 3
.endm
+// Register class conversions.
+#define _GPNUM_w0 0
+#define _GPNUM_w1 1
+#define _GPNUM_w2 2
+#define _GPNUM_w3 3
+#define _GPNUM_w4 4
+#define _GPNUM_w5 5
+#define _GPNUM_w6 6
+#define _GPNUM_w7 7
+#define _GPNUM_w8 8
+#define _GPNUM_w9 9
+#define _GPNUM_w10 10
+#define _GPNUM_w11 11
+#define _GPNUM_w12 12
+#define _GPNUM_w13 13
+#define _GPNUM_w14 14
+#define _GPNUM_w15 15
+#define _GPNUM_w16 16
+#define _GPNUM_w17 17
+#define _GPNUM_w18 18
+#define _GPNUM_w19 19
+#define _GPNUM_w20 20
+#define _GPNUM_w21 21
+#define _GPNUM_w22 22
+#define _GPNUM_w23 23
+#define _GPNUM_w24 24
+#define _GPNUM_w25 25
+#define _GPNUM_w26 26
+#define _GPNUM_w27 27
+#define _GPNUM_w28 28
+#define _GPNUM_w29 29
+#define _GPNUM_w30 30
+#define _GPNUM_wzr zr
+#define _GPNUM_wsp sp
+
+#define _GPNUM_x0 0
+#define _GPNUM_x1 1
+#define _GPNUM_x2 2
+#define _GPNUM_x3 3
+#define _GPNUM_x4 4
+#define _GPNUM_x5 5
+#define _GPNUM_x6 6
+#define _GPNUM_x7 7
+#define _GPNUM_x8 8
+#define _GPNUM_x9 9
+#define _GPNUM_x10 10
+#define _GPNUM_x11 11
+#define _GPNUM_x12 12
+#define _GPNUM_x13 13
+#define _GPNUM_x14 14
+#define _GPNUM_x15 15
+#define _GPNUM_x16 16
+#define _GPNUM_x17 17
+#define _GPNUM_x18 18
+#define _GPNUM_x19 19
+#define _GPNUM_x20 20
+#define _GPNUM_x21 21
+#define _GPNUM_x22 22
+#define _GPNUM_x23 23
+#define _GPNUM_x24 24
+#define _GPNUM_x25 25
+#define _GPNUM_x26 26
+#define _GPNUM_x27 27
+#define _GPNUM_x28 28
+#define _GPNUM_x29 29
+#define _GPNUM_x30 30
+#define _GPNUM_xzr zr
+#define _GPNUM_sp sp
+#define _GPNUM_xsp sp
+#define xsp sp
+
+#define _VNUM_b0 0
+#define _VNUM_b1 1
+#define _VNUM_b2 2
+#define _VNUM_b3 3
+#define _VNUM_b4 4
+#define _VNUM_b5 5
+#define _VNUM_b6 6
+#define _VNUM_b7 7
+#define _VNUM_b8 8
+#define _VNUM_b9 9
+#define _VNUM_b10 10
+#define _VNUM_b11 11
+#define _VNUM_b12 12
+#define _VNUM_b13 13
+#define _VNUM_b14 14
+#define _VNUM_b15 15
+#define _VNUM_b16 16
+#define _VNUM_b17 17
+#define _VNUM_b18 18
+#define _VNUM_b19 19
+#define _VNUM_b20 20
+#define _VNUM_b21 21
+#define _VNUM_b22 22
+#define _VNUM_b23 23
+#define _VNUM_b24 24
+#define _VNUM_b25 25
+#define _VNUM_b26 26
+#define _VNUM_b27 27
+#define _VNUM_b28 28
+#define _VNUM_b29 29
+#define _VNUM_b30 30
+#define _VNUM_b31 31
+
+#define _VNUM_h0 0
+#define _VNUM_h1 1
+#define _VNUM_h2 2
+#define _VNUM_h3 3
+#define _VNUM_h4 4
+#define _VNUM_h5 5
+#define _VNUM_h6 6
+#define _VNUM_h7 7
+#define _VNUM_h8 8
+#define _VNUM_h9 9
+#define _VNUM_h10 10
+#define _VNUM_h11 11
+#define _VNUM_h12 12
+#define _VNUM_h13 13
+#define _VNUM_h14 14
+#define _VNUM_h15 15
+#define _VNUM_h16 16
+#define _VNUM_h17 17
+#define _VNUM_h18 18
+#define _VNUM_h19 19
+#define _VNUM_h20 20
+#define _VNUM_h21 21
+#define _VNUM_h22 22
+#define _VNUM_h23 23
+#define _VNUM_h24 24
+#define _VNUM_h25 25
+#define _VNUM_h26 26
+#define _VNUM_h27 27
+#define _VNUM_h28 28
+#define _VNUM_h29 29
+#define _VNUM_h30 30
+#define _VNUM_h31 31
+
+#define _VNUM_s0 0
+#define _VNUM_s1 1
+#define _VNUM_s2 2
+#define _VNUM_s3 3
+#define _VNUM_s4 4
+#define _VNUM_s5 5
+#define _VNUM_s6 6
+#define _VNUM_s7 7
+#define _VNUM_s8 8
+#define _VNUM_s9 9
+#define _VNUM_s10 10
+#define _VNUM_s11 11
+#define _VNUM_s12 12
+#define _VNUM_s13 13
+#define _VNUM_s14 14
+#define _VNUM_s15 15
+#define _VNUM_s16 16
+#define _VNUM_s17 17
+#define _VNUM_s18 18
+#define _VNUM_s19 19
+#define _VNUM_s20 20
+#define _VNUM_s21 21
+#define _VNUM_s22 22
+#define _VNUM_s23 23
+#define _VNUM_s24 24
+#define _VNUM_s25 25
+#define _VNUM_s26 26
+#define _VNUM_s27 27
+#define _VNUM_s28 28
+#define _VNUM_s29 29
+#define _VNUM_s30 30
+#define _VNUM_s31 31
+
+#define _VNUM_d0 0
+#define _VNUM_d1 1
+#define _VNUM_d2 2
+#define _VNUM_d3 3
+#define _VNUM_d4 4
+#define _VNUM_d5 5
+#define _VNUM_d6 6
+#define _VNUM_d7 7
+#define _VNUM_d8 8
+#define _VNUM_d9 9
+#define _VNUM_d10 10
+#define _VNUM_d11 11
+#define _VNUM_d12 12
+#define _VNUM_d13 13
+#define _VNUM_d14 14
+#define _VNUM_d15 15
+#define _VNUM_d16 16
+#define _VNUM_d17 17
+#define _VNUM_d18 18
+#define _VNUM_d19 19
+#define _VNUM_d20 20
+#define _VNUM_d21 21
+#define _VNUM_d22 22
+#define _VNUM_d23 23
+#define _VNUM_d24 24
+#define _VNUM_d25 25
+#define _VNUM_d26 26
+#define _VNUM_d27 27
+#define _VNUM_d28 28
+#define _VNUM_d29 29
+#define _VNUM_d30 30
+#define _VNUM_d31 31
+
+#define _VNUM_q0 0
+#define _VNUM_q1 1
+#define _VNUM_q2 2
+#define _VNUM_q3 3
+#define _VNUM_q4 4
+#define _VNUM_q5 5
+#define _VNUM_q6 6
+#define _VNUM_q7 7
+#define _VNUM_q8 8
+#define _VNUM_q9 9
+#define _VNUM_q10 10
+#define _VNUM_q11 11
+#define _VNUM_q12 12
+#define _VNUM_q13 13
+#define _VNUM_q14 14
+#define _VNUM_q15 15
+#define _VNUM_q16 16
+#define _VNUM_q17 17
+#define _VNUM_q18 18
+#define _VNUM_q19 19
+#define _VNUM_q20 20
+#define _VNUM_q21 21
+#define _VNUM_q22 22
+#define _VNUM_q23 23
+#define _VNUM_q24 24
+#define _VNUM_q25 25
+#define _VNUM_q26 26
+#define _VNUM_q27 27
+#define _VNUM_q28 28
+#define _VNUM_q29 29
+#define _VNUM_q30 30
+#define _VNUM_q31 31
+
+#define _VNUM_v0 0
+#define _VNUM_v1 1
+#define _VNUM_v2 2
+#define _VNUM_v3 3
+#define _VNUM_v4 4
+#define _VNUM_v5 5
+#define _VNUM_v6 6
+#define _VNUM_v7 7
+#define _VNUM_v8 8
+#define _VNUM_v9 9
+#define _VNUM_v10 10
+#define _VNUM_v11 11
+#define _VNUM_v12 12
+#define _VNUM_v13 13
+#define _VNUM_v14 14
+#define _VNUM_v15 15
+#define _VNUM_v16 16
+#define _VNUM_v17 17
+#define _VNUM_v18 18
+#define _VNUM_v19 19
+#define _VNUM_v20 20
+#define _VNUM_v21 21
+#define _VNUM_v22 22
+#define _VNUM_v23 23
+#define _VNUM_v24 24
+#define _VNUM_v25 25
+#define _VNUM_v26 26
+#define _VNUM_v27 27
+#define _VNUM_v28 28
+#define _VNUM_v29 29
+#define _VNUM_v30 30
+#define _VNUM_v31 31
+
+#define _VNUM_z0 0
+#define _VNUM_z1 1
+#define _VNUM_z2 2
+#define _VNUM_z3 3
+#define _VNUM_z4 4
+#define _VNUM_z5 5
+#define _VNUM_z6 6
+#define _VNUM_z7 7
+#define _VNUM_z8 8
+#define _VNUM_z9 9
+#define _VNUM_z10 10
+#define _VNUM_z11 11
+#define _VNUM_z12 12
+#define _VNUM_z13 13
+#define _VNUM_z14 14
+#define _VNUM_z15 15
+#define _VNUM_z16 16
+#define _VNUM_z17 17
+#define _VNUM_z18 18
+#define _VNUM_z19 19
+#define _VNUM_z20 20
+#define _VNUM_z21 21
+#define _VNUM_z22 22
+#define _VNUM_z23 23
+#define _VNUM_z24 24
+#define _VNUM_z25 25
+#define _VNUM_z26 26
+#define _VNUM_z27 27
+#define _VNUM_z28 28
+#define _VNUM_z29 29
+#define _VNUM_z30 30
+#define _VNUM_z31 31
+
+#define _RDECOR(cls, pre, r) GLUE(pre, _##cls##NUM_##r)
+#define W(r) _RDECOR(GP, w, r)
+#define X(r) _RDECOR(GP, x, r)
+#define B(r) _RDECOR(V, b, r)
+#define H(r) _RDECOR(V, h, r)
+#define S(r) _RDECOR(V, s, r)
+#define D(r) _RDECOR(V, d, r)
+#define Q(r) _RDECOR(V, q, r)
+#define V(r) _RDECOR(V, v, r)
+#define Z(r) _RDECOR(V, z, r)
+
// Stack management and unwinding.
.macro setfp fp=x29, offset=0
// If you're just going through the motions with a fixed-size stack frame,
.macro endprologue
.endm
+// cmov RD, RN, CC: set RD to RN if CC is satisfied, otherwise do nothing
+.macro cmov rd, rn, cc
+ csel \rd, \rn, \rd, \cc
+.endm
+
+// Notational improvement: write `csel.CC' etc., rather than `csel ..., CC'.
+#define _COND(_) \
+ _(eq) _(ne) _(cs) _(cc) _(vs) _(vc) _(mi) _(pl) \
+ _(ge) _(lt) _(gt) _(le) _(hi) _(ls) _(al) _(nv) \
+ _(hs) _(lo)
+#define _INST(_) \
+ _(ccmp) _(ccmn) \
+ _(csel) _(cmov) \
+ _(csinc) _(cinc) _(cset) \
+ _(csneg) _(cneg) \
+ _(csinv) _(cinv) _(csetm)
+#define _CONDVAR(cc) _definstvar cc;
+#define _INSTVARS(inst) \
+ .macro _definstvar cc; \
+ .macro inst.\cc args:vararg; inst \args, \cc; .endm; \
+ .endm; \
+ _COND(_CONDVAR); \
+ .purgem _definstvar;
+ _INST(_INSTVARS)
+#undef _COND
+#undef _INST
+#undef _CONDVAR
+#undef _INSTVARS
+
+// Flag bits for `ccmp' and friends.
+#define CCMP_N 8
+#define CCMP_Z 4
+#define CCMP_C 2
+#define CCMP_V 1
+
+// Flag settings for satisfying conditions.
+#define CCMP_MI CCMP_N
+#define CCMP_PL 0
+#define CCMP_EQ CCMP_Z
+#define CCMP_NE 0
+#define CCMP_CS CCMP_C
+#define CCMP_HS CCMP_C
+#define CCMP_CC 0
+#define CCMP_LO 0
+#define CCMP_VS CCMP_V
+#define CCMP_VC 0
+#define CCMP_HI CCMP_C
+#define CCMP_LS 0
+#define CCMP_LT CCMP_N
+#define CCMP_GE 0
+#define CCMP_LE CCMP_N
+#define CCMP_GT 0
+
#endif
///--------------------------------------------------------------------------