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author | Matthew Gretton-Dann <matthew.gretton-dann@arm.com> | 2012-08-24 08:09:01 +0000 |
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committer | Matthew Gretton-Dann <matthew.gretton-dann@arm.com> | 2012-08-24 08:09:01 +0000 |
commit | 6b9a8b67903ff139b6945f6afbd35a30f9d5315d (patch) | |
tree | 074dab1573786116989f6f1506ee9f464cdd4c2f /gas/config | |
parent | 73924fbcf8af2b8059f9a8df5a2ae43e888e1bb7 (diff) | |
download | gdb-6b9a8b67903ff139b6945f6afbd35a30f9d5315d.zip gdb-6b9a8b67903ff139b6945f6afbd35a30f9d5315d.tar.gz gdb-6b9a8b67903ff139b6945f6afbd35a30f9d5315d.tar.bz2 |
* gas/config/tc-arm.c (CVT_FLAVOUR_VAR): New define.
(CVT_VAR): New helper define.
(neon_cvt_flavour): New enumeration, function renamed...
(get_neon_cvt_flavour): ...to this.
(do_vfp_nsyn_cvt): Update to use new neon_cvt_flavour.
(do_vfp_nsyn_cvtz): Likewise.
(do_neon_cvt_1): Likewise.
Diffstat (limited to 'gas/config')
-rw-r--r-- | gas/config/tc-arm.c | 163 |
1 files changed, 75 insertions, 88 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 4c46abc..7dc938b 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -14510,16 +14510,55 @@ do_neon_shll (void) /* Check the various types for the VCVT instruction, and return which version the current instruction is. */ -static int -neon_cvt_flavour (enum neon_shape rs) +#define CVT_FLAVOUR_VAR \ + CVT_VAR (s32_f32, N_S32, N_F32, whole_reg, "ftosls", "ftosis", "ftosizs") \ + CVT_VAR (u32_f32, N_U32, N_F32, whole_reg, "ftouls", "ftouis", "ftouizs") \ + CVT_VAR (f32_s32, N_F32, N_S32, whole_reg, "fsltos", "fsitos", NULL) \ + CVT_VAR (f32_u32, N_F32, N_U32, whole_reg, "fultos", "fuitos", NULL) \ + /* Half-precision conversions. */ \ + CVT_VAR (f32_f16, N_F32, N_F16, whole_reg, NULL, NULL, NULL) \ + CVT_VAR (f16_f32, N_F16, N_F32, whole_reg, NULL, NULL, NULL) \ + /* VFP instructions. */ \ + CVT_VAR (f32_f64, N_F32, N_F64, N_VFP, NULL, "fcvtsd", NULL) \ + CVT_VAR (f64_f32, N_F64, N_F32, N_VFP, NULL, "fcvtds", NULL) \ + CVT_VAR (s32_f64, N_S32, N_F64 | key, N_VFP, "ftosld", "ftosid", "ftosizd") \ + CVT_VAR (u32_f64, N_U32, N_F64 | key, N_VFP, "ftould", "ftouid", "ftouizd") \ + CVT_VAR (f64_s32, N_F64 | key, N_S32, N_VFP, "fsltod", "fsitod", NULL) \ + CVT_VAR (f64_u32, N_F64 | key, N_U32, N_VFP, "fultod", "fuitod", NULL) \ + /* VFP instructions with bitshift. */ \ + CVT_VAR (f32_s16, N_F32 | key, N_S16, N_VFP, "fshtos", NULL, NULL) \ + CVT_VAR (f32_u16, N_F32 | key, N_U16, N_VFP, "fuhtos", NULL, NULL) \ + CVT_VAR (f64_s16, N_F64 | key, N_S16, N_VFP, "fshtod", NULL, NULL) \ + CVT_VAR (f64_u16, N_F64 | key, N_U16, N_VFP, "fuhtod", NULL, NULL) \ + CVT_VAR (s16_f32, N_S16, N_F32 | key, N_VFP, "ftoshs", NULL, NULL) \ + CVT_VAR (u16_f32, N_U16, N_F32 | key, N_VFP, "ftouhs", NULL, NULL) \ + CVT_VAR (s16_f64, N_S16, N_F64 | key, N_VFP, "ftoshd", NULL, NULL) \ + CVT_VAR (u16_f64, N_U16, N_F64 | key, N_VFP, "ftouhd", NULL, NULL) + +#define CVT_VAR(C, X, Y, R, BSN, CN, ZN) \ + neon_cvt_flavour_##C, + +/* The different types of conversions we can do. */ +enum neon_cvt_flavour +{ + CVT_FLAVOUR_VAR + neon_cvt_flavour_invalid, + neon_cvt_flavour_first_fp = neon_cvt_flavour_f32_f64 +}; + +#undef CVT_VAR + +static enum neon_cvt_flavour +get_neon_cvt_flavour (enum neon_shape rs) { -#define CVT_VAR(C,X,Y) \ - et = neon_check_type (2, rs, whole_reg | (X), whole_reg | (Y)); \ - if (et.type != NT_invtype) \ - { \ - inst.error = NULL; \ - return (C); \ +#define CVT_VAR(C,X,Y,R,BSN,CN,ZN) \ + et = neon_check_type (2, rs, (R) | (X), (R) | (Y)); \ + if (et.type != NT_invtype) \ + { \ + inst.error = NULL; \ + return (neon_cvt_flavour_##C); \ } + struct neon_type_el et; unsigned whole_reg = (rs == NS_FFI || rs == NS_FD || rs == NS_DF || rs == NS_FF) ? N_VFP : 0; @@ -14529,41 +14568,16 @@ neon_cvt_flavour (enum neon_shape rs) here by making the size equal to the key (wider, in this case) operand. */ unsigned key = (rs == NS_QQI || rs == NS_DDI || rs == NS_FFI) ? N_KEY : 0; - CVT_VAR (0, N_S32, N_F32); - CVT_VAR (1, N_U32, N_F32); - CVT_VAR (2, N_F32, N_S32); - CVT_VAR (3, N_F32, N_U32); - /* Half-precision conversions. */ - CVT_VAR (4, N_F32, N_F16); - CVT_VAR (5, N_F16, N_F32); - - whole_reg = N_VFP; - - /* VFP instructions. */ - CVT_VAR (6, N_F32, N_F64); - CVT_VAR (7, N_F64, N_F32); - CVT_VAR (8, N_S32, N_F64 | key); - CVT_VAR (9, N_U32, N_F64 | key); - CVT_VAR (10, N_F64 | key, N_S32); - CVT_VAR (11, N_F64 | key, N_U32); - /* VFP instructions with bitshift. */ - CVT_VAR (12, N_F32 | key, N_S16); - CVT_VAR (13, N_F32 | key, N_U16); - CVT_VAR (14, N_F64 | key, N_S16); - CVT_VAR (15, N_F64 | key, N_U16); - CVT_VAR (16, N_S16, N_F32 | key); - CVT_VAR (17, N_U16, N_F32 | key); - CVT_VAR (18, N_S16, N_F64 | key); - CVT_VAR (19, N_U16, N_F64 | key); + CVT_FLAVOUR_VAR; - return -1; + return neon_cvt_flavour_invalid; #undef CVT_VAR } /* Neon-syntax VFP conversions. */ static void -do_vfp_nsyn_cvt (enum neon_shape rs, int flavour) +do_vfp_nsyn_cvt (enum neon_shape rs, enum neon_cvt_flavour flavour) { const char *opname = 0; @@ -14572,29 +14586,13 @@ do_vfp_nsyn_cvt (enum neon_shape rs, int flavour) /* Conversions with immediate bitshift. */ const char *enc[] = { - "ftosls", - "ftouls", - "fsltos", - "fultos", - NULL, - NULL, - NULL, - NULL, - "ftosld", - "ftould", - "fsltod", - "fultod", - "fshtos", - "fuhtos", - "fshtod", - "fuhtod", - "ftoshs", - "ftouhs", - "ftoshd", - "ftouhd" +#define CVT_VAR(C,A,B,R,BSN,CN,ZN) BSN, + CVT_FLAVOUR_VAR + NULL +#undef CVT_VAR }; - if (flavour >= 0 && flavour < (int) ARRAY_SIZE (enc)) + if (flavour < (int) ARRAY_SIZE (enc)) { opname = enc[flavour]; constraint (inst.operands[0].reg != inst.operands[1].reg, @@ -14608,21 +14606,13 @@ do_vfp_nsyn_cvt (enum neon_shape rs, int flavour) /* Conversions without bitshift. */ const char *enc[] = { - "ftosis", - "ftouis", - "fsitos", - "fuitos", - "NULL", - "NULL", - "fcvtsd", - "fcvtds", - "ftosid", - "ftouid", - "fsitod", - "fuitod" +#define CVT_VAR(C,A,B,R,BSN,CN,ZN) CN, + CVT_FLAVOUR_VAR + NULL +#undef CVT_VAR }; - if (flavour >= 0 && flavour < (int) ARRAY_SIZE (enc)) + if (flavour < (int) ARRAY_SIZE (enc)) opname = enc[flavour]; } @@ -14634,22 +14624,16 @@ static void do_vfp_nsyn_cvtz (void) { enum neon_shape rs = neon_select_shape (NS_FF, NS_FD, NS_NULL); - int flavour = neon_cvt_flavour (rs); + enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs); const char *enc[] = { - "ftosizs", - "ftouizs", - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - "ftosizd", - "ftouizd" +#define CVT_VAR(C,A,B,R,BSN,CN,ZN) ZN, + CVT_FLAVOUR_VAR + NULL +#undef CVT_VAR }; - if (flavour >= 0 && flavour < (int) ARRAY_SIZE (enc) && enc[flavour]) + if (flavour < (int) ARRAY_SIZE (enc) && enc[flavour]) do_vfp_nsyn_opcode (enc[flavour]); } @@ -14658,12 +14642,15 @@ do_neon_cvt_1 (bfd_boolean round_to_zero ATTRIBUTE_UNUSED) { enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_FFI, NS_DD, NS_QQ, NS_FD, NS_DF, NS_FF, NS_QD, NS_DQ, NS_NULL); - int flavour = neon_cvt_flavour (rs); + enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs); /* PR11109: Handle round-to-zero for VCVT conversions. */ if (round_to_zero && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_arch_vfp_v2) - && (flavour == 0 || flavour == 1 || flavour == 8 || flavour == 9) + && (flavour == neon_cvt_flavour_s32_f32 + || flavour == neon_cvt_flavour_u32_f32 + || flavour == neon_cvt_flavour_s32_f64 + || flavour == neon_cvt_flavour_u32_f64) && (rs == NS_FD || rs == NS_FF)) { do_vfp_nsyn_cvtz (); @@ -14671,7 +14658,7 @@ do_neon_cvt_1 (bfd_boolean round_to_zero ATTRIBUTE_UNUSED) } /* VFP rather than Neon conversions. */ - if (flavour >= 6) + if (flavour >= neon_cvt_flavour_first_fp) { do_vfp_nsyn_cvt (rs, flavour); return; @@ -14694,7 +14681,7 @@ do_neon_cvt_1 (bfd_boolean round_to_zero ATTRIBUTE_UNUSED) goto int_encode; immbits = 32 - inst.operands[2].imm; NEON_ENCODE (IMMED, inst); - if (flavour != -1) + if (flavour != neon_cvt_flavour_invalid) inst.instruction |= enctab[flavour]; inst.instruction |= LOW4 (inst.operands[0].reg) << 12; inst.instruction |= HI1 (inst.operands[0].reg) << 22; @@ -14719,8 +14706,8 @@ do_neon_cvt_1 (bfd_boolean round_to_zero ATTRIBUTE_UNUSED) if (vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL) return; - if (flavour != -1) - inst.instruction |= enctab[flavour]; + if (flavour != neon_cvt_flavour_invalid) + inst.instruction |= enctab[flavour]; inst.instruction |= LOW4 (inst.operands[0].reg) << 12; inst.instruction |= HI1 (inst.operands[0].reg) << 22; |