/* Definitions of target machine for GNU compiler, for ARM with a.out
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
- Free Software Foundation, Inc.
+ Copyright (C) 1995-2021 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rearnsha@armltd.co.uk).
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
- You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef ASM_APP_ON
#define ASM_APP_ON ""
#define LOCAL_LABEL_PREFIX ""
#endif
-/* The assembler's names for the registers. */
+/* The assembler's names for the registers. Note that the ?xx registers are
+ there so that VFPv3/NEON registers D16-D31 have the same spacing as D0-D15
+ (each of which is overlaid on two S registers), although there are no
+ actual single-precision registers which correspond to D16-D31. New register
+ p0 is added which is used for MVE predicated cases. */
+
#ifndef REGISTER_NAMES
-#define REGISTER_NAMES \
-{ \
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
- "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \
- "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
- "cc", "sfp", "afp", \
- "mv0", "mv1", "mv2", "mv3", \
- "mv4", "mv5", "mv6", "mv7", \
- "mv8", "mv9", "mv10", "mv11", \
- "mv12", "mv13", "mv14", "mv15", \
- "wcgr0", "wcgr1", "wcgr2", "wcgr3", \
- "wr0", "wr1", "wr2", "wr3", \
- "wr4", "wr5", "wr6", "wr7", \
- "wr8", "wr9", "wr10", "wr11", \
- "wr12", "wr13", "wr14", "wr15", \
- "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \
- "s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15", \
- "s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23", \
- "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31", \
- "vfpcc" \
+#define REGISTER_NAMES \
+{ \
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+ "r8", "r9", "r10", "fp", "ip", "sp", "lr", "pc", \
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \
+ "s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15", \
+ "s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23", \
+ "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31", \
+ "d16", "?16", "d17", "?17", "d18", "?18", "d19", "?19", \
+ "d20", "?20", "d21", "?21", "d22", "?22", "d23", "?23", \
+ "d24", "?24", "d25", "?25", "d26", "?26", "d27", "?27", \
+ "d28", "?28", "d29", "?29", "d30", "?30", "d31", "?31", \
+ "wr0", "wr1", "wr2", "wr3", \
+ "wr4", "wr5", "wr6", "wr7", \
+ "wr8", "wr9", "wr10", "wr11", \
+ "wr12", "wr13", "wr14", "wr15", \
+ "wcgr0", "wcgr1", "wcgr2", "wcgr3", \
+ "cc", "vfpcc", "sfp", "afp", "apsrq", "apsrge", "p0" \
}
#endif
{"v4", 7}, \
{"v5", 8}, \
{"v6", 9}, \
- {"rfp", 9}, /* Gcc used to call it this */ \
- {"sb", 9}, \
+ {"rfp", 9}, /* Historical. */ \
+ {"sb", 9}, /* Historical. */ \
{"v7", 10}, \
- {"r10", 10}, /* sl */ \
+ {"sl", 10}, /* Historical. */ \
{"r11", 11}, /* fp */ \
{"r12", 12}, /* ip */ \
{"r13", 13}, /* sp */ \
{"r14", 14}, /* lr */ \
- {"r15", 15}, /* pc */ \
- {"mvf0", 27}, \
- {"mvf1", 28}, \
- {"mvf2", 29}, \
- {"mvf3", 30}, \
- {"mvf4", 31}, \
- {"mvf5", 32}, \
- {"mvf6", 33}, \
- {"mvf7", 34}, \
- {"mvf8", 35}, \
- {"mvf9", 36}, \
- {"mvf10", 37}, \
- {"mvf11", 38}, \
- {"mvf12", 39}, \
- {"mvf13", 40}, \
- {"mvf14", 41}, \
- {"mvf15", 42}, \
- {"mvd0", 27}, \
- {"mvd1", 28}, \
- {"mvd2", 29}, \
- {"mvd3", 30}, \
- {"mvd4", 31}, \
- {"mvd5", 32}, \
- {"mvd6", 33}, \
- {"mvd7", 34}, \
- {"mvd8", 35}, \
- {"mvd9", 36}, \
- {"mvd10", 37}, \
- {"mvd11", 38}, \
- {"mvd12", 39}, \
- {"mvd13", 40}, \
- {"mvd14", 41}, \
- {"mvd15", 42}, \
- {"mvfx0", 27}, \
- {"mvfx1", 28}, \
- {"mvfx2", 29}, \
- {"mvfx3", 30}, \
- {"mvfx4", 31}, \
- {"mvfx5", 32}, \
- {"mvfx6", 33}, \
- {"mvfx7", 34}, \
- {"mvfx8", 35}, \
- {"mvfx9", 36}, \
- {"mvfx10", 37}, \
- {"mvfx11", 38}, \
- {"mvfx12", 39}, \
- {"mvfx13", 40}, \
- {"mvfx14", 41}, \
- {"mvfx15", 42}, \
- {"mvdx0", 27}, \
- {"mvdx1", 28}, \
- {"mvdx2", 29}, \
- {"mvdx3", 30}, \
- {"mvdx4", 31}, \
- {"mvdx5", 32}, \
- {"mvdx6", 33}, \
- {"mvdx7", 34}, \
- {"mvdx8", 35}, \
- {"mvdx9", 36}, \
- {"mvdx10", 37}, \
- {"mvdx11", 38}, \
- {"mvdx12", 39}, \
- {"mvdx13", 40}, \
- {"mvdx14", 41}, \
- {"mvdx15", 42}, \
- {"d0", 63}, \
- {"d1", 65}, \
- {"d2", 67}, \
- {"d3", 69}, \
- {"d4", 71}, \
- {"d5", 73}, \
- {"d6", 75}, \
- {"d7", 77}, \
- {"d8", 79}, \
- {"d9", 81}, \
- {"d10", 83}, \
- {"d11", 85}, \
- {"d12", 87}, \
- {"d13", 89}, \
- {"d14", 91}, \
- {"d15", 93}, \
+ {"r15", 15} /* pc */ \
}
#endif
-/* Arm Assembler barfs on dollars. */
-#define DOLLARS_IN_IDENTIFIERS 0
+#ifndef OVERLAPPING_REGISTER_NAMES
+#define OVERLAPPING_REGISTER_NAMES \
+{ \
+ {"d0", FIRST_VFP_REGNUM + 0, 2}, \
+ {"d1", FIRST_VFP_REGNUM + 2, 2}, \
+ {"d2", FIRST_VFP_REGNUM + 4, 2}, \
+ {"d3", FIRST_VFP_REGNUM + 6, 2}, \
+ {"d4", FIRST_VFP_REGNUM + 8, 2}, \
+ {"d5", FIRST_VFP_REGNUM + 10, 2}, \
+ {"d6", FIRST_VFP_REGNUM + 12, 2}, \
+ {"d7", FIRST_VFP_REGNUM + 14, 2}, \
+ {"d8", FIRST_VFP_REGNUM + 16, 2}, \
+ {"d9", FIRST_VFP_REGNUM + 18, 2}, \
+ {"d10", FIRST_VFP_REGNUM + 20, 2}, \
+ {"d11", FIRST_VFP_REGNUM + 22, 2}, \
+ {"d12", FIRST_VFP_REGNUM + 24, 2}, \
+ {"d13", FIRST_VFP_REGNUM + 26, 2}, \
+ {"d14", FIRST_VFP_REGNUM + 28, 2}, \
+ {"d15", FIRST_VFP_REGNUM + 30, 2}, \
+ {"q0", FIRST_VFP_REGNUM + 0, 4}, \
+ {"q1", FIRST_VFP_REGNUM + 4, 4}, \
+ {"q2", FIRST_VFP_REGNUM + 8, 4}, \
+ {"q3", FIRST_VFP_REGNUM + 12, 4}, \
+ {"q4", FIRST_VFP_REGNUM + 16, 4}, \
+ {"q5", FIRST_VFP_REGNUM + 20, 4}, \
+ {"q6", FIRST_VFP_REGNUM + 24, 4}, \
+ {"q7", FIRST_VFP_REGNUM + 28, 4}, \
+ {"q8", FIRST_VFP_REGNUM + 32, 4}, \
+ {"q9", FIRST_VFP_REGNUM + 36, 4}, \
+ {"q10", FIRST_VFP_REGNUM + 40, 4}, \
+ {"q11", FIRST_VFP_REGNUM + 44, 4}, \
+ {"q12", FIRST_VFP_REGNUM + 48, 4}, \
+ {"q13", FIRST_VFP_REGNUM + 52, 4}, \
+ {"q14", FIRST_VFP_REGNUM + 56, 4}, \
+ {"q15", FIRST_VFP_REGNUM + 60, 4} \
+}
+#endif
#ifndef NO_DOLLAR_IN_LABEL
#define NO_DOLLAR_IN_LABEL 1
#define DBX_CONTIN_LENGTH 0
#endif
-/* Output a source filename for the debugger. RISCiX dbx insists that the
- ``desc'' field is set to compiler version number >= 315 (sic). */
-#define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM, NAME) \
- do \
- { \
- fprintf (STREAM, ".stabs "); \
- output_quoted_string (STREAM, NAME); \
- fprintf (STREAM, ",%d,0,315,%s\n", N_SO, <ext_label_name[1]); \
- text_section (); \
- (*targetm.asm_out.internal_label) (STREAM, "Ltext", 0); \
- } \
- while (0)
-
/* Output a function label definition. */
#ifndef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
#endif
/* Output an element of a dispatch table. */
-#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
- asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE)
+#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
+ do \
+ { \
+ gcc_assert (!TARGET_THUMB2); \
+ asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE); \
+ } \
+ while (0)
+
+/* Thumb-2 always uses addr_diff_elf so that the Table Branch instructions
+ can be used. For non-pic code where the offsets do not suitable for
+ TBB/TBH the elements are output as absolute labels. */
#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \
do \
{ \
if (TARGET_ARM) \
asm_fprintf (STREAM, "\tb\t%LL%d\n", VALUE); \
- else \
- asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", VALUE, REL); \
+ else if (TARGET_THUMB1) \
+ { \
+ if (flag_pic || optimize_size) \
+ { \
+ switch (GET_MODE(body)) \
+ { \
+ case E_QImode: \
+ asm_fprintf (STREAM, "\t.byte\t(%LL%d-%LL%d)/2\n", \
+ VALUE, REL); \
+ break; \
+ case E_HImode: /* TBH */ \
+ asm_fprintf (STREAM, "\t.2byte\t(%LL%d-%LL%d)/2\n", \
+ VALUE, REL); \
+ break; \
+ case E_SImode: \
+ asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", \
+ VALUE, REL); \
+ break; \
+ default: \
+ gcc_unreachable(); \
+ } \
+ } \
+ else \
+ asm_fprintf (STREAM, "\t.word\t%LL%d+1\n", VALUE); \
+ } \
+ else /* Thumb-2 */ \
+ { \
+ switch (GET_MODE(body)) \
+ { \
+ case E_QImode: /* TBB */ \
+ asm_fprintf (STREAM, "\t.byte\t(%LL%d-%LL%d)/2\n", \
+ VALUE, REL); \
+ break; \
+ case E_HImode: /* TBH */ \
+ asm_fprintf (STREAM, "\t.2byte\t(%LL%d-%LL%d)/2\n", \
+ VALUE, REL); \
+ break; \
+ case E_SImode: \
+ if (flag_pic) \
+ asm_fprintf (STREAM, "\t.word\t%LL%d+1-%LL%d\n", VALUE, REL); \
+ else \
+ asm_fprintf (STREAM, "\t.word\t%LL%d+1\n", VALUE); \
+ break; \
+ default: \
+ gcc_unreachable(); \
+ } \
+ } \
} \
while (0)
#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \
do \
{ \
- bss_section (); \
+ switch_to_section (bss_section); \
ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL (STREAM, NAME); \
fprintf (STREAM, "\t.space\t%d\n", (int)(SIZE)); \
asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN)
#endif
-/* Output a #ident directive. */
-#ifndef ASM_OUTPUT_IDENT
-#define ASM_OUTPUT_IDENT(STREAM,STRING) \
- asm_fprintf (STREAM, "%@ - - - ident %s\n", STRING)
-#endif
-
#ifndef ASM_COMMENT_START
#define ASM_COMMENT_START "@"
#endif