From: Richard Sandiford Date: Thu, 30 Mar 2023 10:09:05 +0000 (+0100) Subject: aarch64: Move w12-w15 range check to libopcodes X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7da28504bf86cbdf93965c953979d276db3616d0;p=binutils-gdb.git aarch64: Move w12-w15 range check to libopcodes In SME, the vector select register had to be in the range w12-w15, so it made sense to enforce that during parsing. However, SME2 adds instructions for which the range is w8-w11 instead. This patch therefore moves the range check from the parsing stage to the constraint-checking stage. Also, the previous error used a capitalised range W12-W15, whereas other register range errors used lowercase ranges like p0-p7. A quick internal poll showed a preference for the lowercase form, so the patch uses that. The patch uses "selection register" rather than "vector select register" so that the terminology extends more naturally to PSEL. --- diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index dafd5bc296c..d938aa9eb83 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -4372,11 +4372,10 @@ parse_sme_immediate (char **str, int64_t *imm) return true; } -/* Parse index with vector select register and immediate: +/* Parse index with selection register and immediate offset: [, ] [, #] - where is in W12-W15 range and # is optional for immediate. Return true on success, populating OPND with the parsed index. */ @@ -4391,12 +4390,11 @@ parse_sme_za_index (char **str, struct aarch64_indexed_za *opnd) return false; } - /* Vector select register W12-W15 encoded in the 2-bit Rv field. */ + /* The selection register, encoded in the 2-bit Rv field. */ reg = parse_reg (str); - if (reg == NULL || reg->type != REG_TYPE_R_32 - || reg->number < 12 || reg->number > 15) + if (reg == NULL || reg->type != REG_TYPE_R_32) { - set_syntax_error (_("expected vector select register W12-W15")); + set_syntax_error (_("expected a 32-bit selection register")); return false; } opnd->index.regno = reg->number; @@ -4424,9 +4422,8 @@ parse_sme_za_index (char **str, struct aarch64_indexed_za *opnd) /* Parse a register of type REG_TYPE that might have an element type qualifier and that is indexed by two values: a 32-bit register, - followed by an immediate. The 32-bit register must be W12-W15. - The range of the immediate varies by opcode and is checked in - libopcodes. + followed by an immediate. The ranges of the register and the + immediate vary by opcode and are checked in libopcodes. Return true on success, populating OPND with information about the operand and setting QUALIFIER to the register qualifier. diff --git a/gas/testsuite/gas/aarch64/sme-2-illegal.l b/gas/testsuite/gas/aarch64/sme-2-illegal.l index eaf1b975a81..9d3495aebc0 100644 --- a/gas/testsuite/gas/aarch64/sme-2-illegal.l +++ b/gas/testsuite/gas/aarch64/sme-2-illegal.l @@ -11,12 +11,12 @@ [^:]*:[0-9]+: Error: immediate offset must be 0 at operand 3 -- `mova z31\.q,p7/m,za15v\.q\[w15,#1\]' [^:]*:[0-9]+: Error: expected ',' at operand 3 -- `mova z31\.q,p7/m,za15v\.q\[w15\]' [^:]*:[0-9]+: Error: expected '\[' at operand 3 -- `mova z0\.b,p0/m,za0v.b' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `mova z31\.b,p7/m,za0v\.b\[15,w15\]' +[^:]*:[0-9]+: Error: expected a 32-bit selection register at operand 3 -- `mova z31\.b,p7/m,za0v\.b\[15,w15\]' [^:]*:[0-9]+: Error: expected ',' at operand 3 -- `mova z0\.h,p0/m,za0v\.h\[w12\. 0\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `mova z0\.s,p0/m,za0v\.s\[x12,0]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `mova z0\.d,p0/m,za0v\.d\[w21,0\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[s12\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[d12\]' +[^:]*:[0-9]+: Error: expected a 32-bit selection register at operand 3 -- `mova z0\.s,p0/m,za0v\.s\[x12,0]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 3 -- `mova z0\.d,p0/m,za0v\.d\[w21,0\]' +[^:]*:[0-9]+: Error: expected a 32-bit selection register at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[s12\]' +[^:]*:[0-9]+: Error: expected a 32-bit selection register at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[d12\]' [^:]*:[0-9]+: Error: index offset immediate expected at operand 3 -- `mova z0.q,p0/m,za0v\.q\[w12,\]' [^:]*:[0-9]+: Error: expected ',' at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[w12\.\]' [^:]*:[0-9]+: Error: index offset immediate expected at operand 3 -- `mova z0\.q,p0/m,za0v\.q\[w12,abc\]' diff --git a/gas/testsuite/gas/aarch64/sme-5-illegal.l b/gas/testsuite/gas/aarch64/sme-5-illegal.l index d706a169f3a..14d3cf456f3 100644 --- a/gas/testsuite/gas/aarch64/sme-5-illegal.l +++ b/gas/testsuite/gas/aarch64/sme-5-illegal.l @@ -1,6 +1,6 @@ [^:]*: Assembler messages: -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `ld1b {za0h.b\[w11,0\]},p0/z,\[x0\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `ld1h {za0h.h\[w16,0\]},p0/z,\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `ld1b {za0h.b\[w11,0\]},p0/z,\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `ld1h {za0h.h\[w16,0\]},p0/z,\[x0\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 3 -- `ld1h {za0v.h\[w12,0\]},p0/z,\[x0,x0,lsl#3\]' [^:]*:[0-9]+: Error: '\]' expected at operand 3 -- `ld1w {za3v.s\[w15,3\]},p7/z,\[sp,lsl#2\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 3 -- `ld1d {za0h.d\[w12,0\]},p0/z,\[sp,x0,lsl#12\]' diff --git a/gas/testsuite/gas/aarch64/sme-6-illegal.l b/gas/testsuite/gas/aarch64/sme-6-illegal.l index d2a3f3ca09e..b2527ead250 100644 --- a/gas/testsuite/gas/aarch64/sme-6-illegal.l +++ b/gas/testsuite/gas/aarch64/sme-6-illegal.l @@ -1,6 +1,6 @@ [^:]*: Assembler messages: -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `st1b {za0h.b\[w11,0\]},p0,\[x0\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `st1h {za0h.h\[w16,0\]},p0,\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `st1b {za0h.b\[w11,0\]},p0,\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `st1h {za0h.h\[w16,0\]},p0,\[x0\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 3 -- `st1h {za0v.h\[w12,0\]},p0,\[x0,x0,lsl#3\]' [^:]*:[0-9]+: Error: '\]' expected at operand 3 -- `st1w {za3v.s\[w15,3\]},p7,\[sp,lsl#2\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 3 -- `st1d {za0h.d\[w12,0\]},p0,\[sp,x0,lsl#12\]' diff --git a/gas/testsuite/gas/aarch64/sme-7-illegal.l b/gas/testsuite/gas/aarch64/sme-7-illegal.l index cee93c85bac..cf4bca2cd20 100644 --- a/gas/testsuite/gas/aarch64/sme-7-illegal.l +++ b/gas/testsuite/gas/aarch64/sme-7-illegal.l @@ -1,22 +1,22 @@ [^:]*: Assembler messages: -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `ldr za\[w11,0\],\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `ldr za\[w11,0\],\[x0\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 2 -- `ldr za\[w12,1\],\[sp,x0\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `ldr za\[w12,0\],\[sp,#1,mul vl\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `ldr za\[w13,9\],\[x17,#19,mul vl\]' [^:]*:[0-9]+: Error: immediate offset out of range 0 to 15 at operand 1 -- `ldr za\[w13,21\],\[x17,#21,mul vl\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `ldr za\[w15,32\],\[x17,#15,mul vl\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `ldr za\[w16,15\],\[sp,#15,mul vl\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `ldr za\[w16,15\],\[sp,#15,mul vl\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `ldr za\[w12,0\],\[x0,#0,mul#1\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `ldr za\[w13,0\],\[sp,#0,mul#2\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `ldr za\[w14,9\],\[x17,#9,mul#3\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `ldr za\[w15,15\],\[sp,#15,mul#4\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `str za\[w11,0\],\[x0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `str za\[w11,0\],\[x0\]' [^:]*:[0-9]+: Error: invalid addressing mode at operand 2 -- `str za\[w12,1\],\[sp,x0\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `str za\[w12,0\],\[sp,#1,mul vl\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `str za\[w13,9\],\[x17,#19,mul vl\]' [^:]*:[0-9]+: Error: immediate offset out of range 0 to 15 at operand 1 -- `str za\[w13,21\],\[x17,#21,mul vl\]' [^:]*:[0-9]+: Error: operand 2 must have the same immediate value as operand 1 -- `str za\[w15,32\],\[x17,#15,mul vl\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 1 -- `str za\[w16,15\],\[sp,#15,mul vl\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 1 -- `str za\[w16,15\],\[sp,#15,mul vl\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `str za\[w12,0\],\[x0,#0,mul#1\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `str za\[w13,0\],\[sp,#0,mul#2\]' [^:]*:[0-9]+: Error: only 'MUL VL' is permitted at operand 2 -- `str za\[w14,9\],\[x17,#9,mul#3\]' diff --git a/gas/testsuite/gas/aarch64/sme-9-illegal.l b/gas/testsuite/gas/aarch64/sme-9-illegal.l index b0554c5168f..1a33420dc35 100644 --- a/gas/testsuite/gas/aarch64/sme-9-illegal.l +++ b/gas/testsuite/gas/aarch64/sme-9-illegal.l @@ -15,10 +15,14 @@ [^:]*:[0-9]+: Info: psel p1, p15, p3.h\[w15, 0\] [^:]*:[0-9]+: Info: psel p1, p15, p3.s\[w15, 0\] [^:]*:[0-9]+: Info: psel p1, p15, p3.d\[w15, 0\] -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `psel p1,p15,p3.b\[w11\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `psel p8,p11,p15.h\[w16\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `psel p2,p7,p15.s\[w3\]' -[^:]*:[0-9]+: Error: expected vector select register W12-W15 at operand 3 -- `psel p13,p3,p1.d\[w17\]' +[^:]*:[0-9]+: Error: expected ',' at operand 3 -- `psel p1,p15,p3.b\[w11\]' +[^:]*:[0-9]+: Error: expected ',' at operand 3 -- `psel p8,p11,p15.h\[w16\]' +[^:]*:[0-9]+: Error: expected ',' at operand 3 -- `psel p2,p7,p15.s\[w3\]' +[^:]*:[0-9]+: Error: expected ',' at operand 3 -- `psel p13,p3,p1.d\[w17\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 3 -- `psel p1,p15,p3.b\[w11,#0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 3 -- `psel p8,p11,p15.h\[w16,#0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 3 -- `psel p2,p7,p15.s\[w3,#0\]' +[^:]*:[0-9]+: Error: expected a selection register in the range w12-w15 at operand 3 -- `psel p13,p3,p1.d\[w17,#0\]' [^:]*:[0-9]+: Error: immediate offset out of range 0 to 15 at operand 3 -- `psel p5,p12,p9.b\[w15,#16\]' [^:]*:[0-9]+: Error: immediate offset out of range 0 to 7 at operand 3 -- `psel p1,p8,p6.h\[w14,#8\]' [^:]*:[0-9]+: Error: immediate offset out of range 0 to 3 at operand 3 -- `psel p8,p4,p15.s\[w13,#4\]' diff --git a/gas/testsuite/gas/aarch64/sme-9-illegal.s b/gas/testsuite/gas/aarch64/sme-9-illegal.s index 2351d711b64..f59582eeb8b 100644 --- a/gas/testsuite/gas/aarch64/sme-9-illegal.s +++ b/gas/testsuite/gas/aarch64/sme-9-illegal.s @@ -8,6 +8,10 @@ psel p1, p15, p3.b[w11] psel p8, p11, p15.h[w16] psel p2, p7, p15.s[w3] psel p13, p3, p1.d[w17] +psel p1, p15, p3.b[w11, #0] +psel p8, p11, p15.h[w16, #0] +psel p2, p7, p15.s[w3, #0] +psel p13, p3, p1.d[w17, #0] psel p5, p12, p9.b[w15, #16] psel p1, p8, p6.h[w14, #8] psel p8, p4, p15.s[w13, #4] diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c index 746edde7516..24cca9e8193 100644 --- a/opcodes/aarch64-opc.c +++ b/opcodes/aarch64-opc.c @@ -1438,14 +1438,28 @@ set_other_error (aarch64_operand_error *mismatch_detail, int idx, set_error (mismatch_detail, AARCH64_OPDE_OTHER_ERROR, idx, error); } -/* Check that indexed ZA operand OPND has a vector select offset - in the range [0, MAX_VALUE]. */ +/* Check that indexed ZA operand OPND has: + + - a selection register in the range [MIN_WREG, MIN_WREG + 3] + + - an immediate offset in the range [0, MAX_VALUE]. */ static bool check_za_access (const aarch64_opnd_info *opnd, aarch64_operand_error *mismatch_detail, int idx, - int max_value) + int min_wreg, int max_value) { + if (!value_in_range_p (opnd->indexed_za.index.regno, min_wreg, min_wreg + 3)) + { + if (min_wreg == 12) + set_other_error (mismatch_detail, idx, + _("expected a selection register in the" + " range w12-w15")); + else + abort (); + return false; + } + if (!value_in_range_p (opnd->indexed_za.index.imm, 0, max_value)) { set_offset_out_of_range_error (mismatch_detail, idx, 0, max_value); @@ -1593,7 +1607,7 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx, case AARCH64_OPND_SME_PnT_Wm_imm: size = aarch64_get_qualifier_esize (opnd->qualifier); max_value = 16 / size - 1; - if (!check_za_access (opnd, mismatch_detail, idx, max_value)) + if (!check_za_access (opnd, mismatch_detail, idx, 12, max_value)) return 0; break; @@ -1610,12 +1624,12 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx, case AARCH64_OPND_SME_ZA_HV_idx_ldstr: size = aarch64_get_qualifier_esize (opnd->qualifier); max_value = 16 / size - 1; - if (!check_za_access (opnd, mismatch_detail, idx, max_value)) + if (!check_za_access (opnd, mismatch_detail, idx, 12, max_value)) return 0; break; case AARCH64_OPND_SME_ZA_array: - if (!check_za_access (opnd, mismatch_detail, idx, 15)) + if (!check_za_access (opnd, mismatch_detail, idx, 12, 15)) return 0; break;