diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/rs6000/darwin.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/rs6000/darwin.h | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin.h b/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin.h new file mode 100644 index 000000000..672fd2889 --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin.h @@ -0,0 +1,605 @@ +/* Target definitions for PowerPC running Darwin (Mac OS X). + Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006 + Free Software Foundation, Inc. + Contributed by Apple Computer Inc. + + 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 + option) any later version. + + GCC is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + 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, 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (Darwin/PowerPC)"); + +/* The "Darwin ABI" is mostly like AIX, but with some key differences. */ + +#define DEFAULT_ABI ABI_DARWIN + +#ifdef IN_LIBGCC2 +#undef TARGET_64BIT +#ifdef __powerpc64__ +#define TARGET_64BIT 1 +#else +#define TARGET_64BIT 0 +#endif +#endif + +/* The object file format is Mach-O. */ + +#define TARGET_OBJECT_FORMAT OBJECT_MACHO + +/* Size of the Obj-C jump buffer. */ +#define OBJC_JBLEN ((TARGET_64BIT) ? (26*2 + 18*2 + 129 + 1) : (26 + 18*2 + 129 + 1)) + +/* We're not ever going to do TOCs. */ + +#define TARGET_TOC 0 +#define TARGET_NO_TOC 1 + +/* Override the default rs6000 definition. */ +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") + +/* APPLE LOCAL begin mdynamic-no-pic */ +/* This was a stupid idea in the first place. */ +#if 0 +/* Translate config/rs6000/darwin.opt to config/darwin.h. */ +#define TARGET_DYNAMIC_NO_PIC (TARGET_MACHO_DYNAMIC_NO_PIC) +#endif +/* APPLE LOCAL end mdynamic-no-pic */ + +#define TARGET_OS_CPP_BUILTINS() \ + do \ + { \ + if (!TARGET_64BIT) builtin_define ("__ppc__"); \ + if (TARGET_64BIT) builtin_define ("__ppc64__"); \ + builtin_define ("__POWERPC__"); \ + builtin_define ("__NATURAL_ALIGNMENT__"); \ + darwin_cpp_builtins (pfile); \ + } \ + while (0) + +/* APPLE LOCAL begin mainline 2007-02-20 5005743 */ \ +#define SUBTARGET_OVERRIDE_OPTIONS darwin_rs6000_override_options () + +/* APPLE LOCAL end mainline 2007-02-20 5005743 */ \ +/* APPLE LOCAL begin mainline */ +#define C_COMMON_OVERRIDE_OPTIONS do { \ + /* On powerpc, __cxa_get_exception_ptr is available starting in the \ + 10.4.6 libstdc++.dylib. */ \ +/* APPLE LOCAL begin ARM 5683689 */ \ + if (!darwin_iphoneos_version_min \ + && (!darwin_macosx_version_min \ + || strverscmp (darwin_macosx_version_min, "10.4.6") < 0) \ +/* APPLE LOCAL end 5683689 */ \ + && flag_use_cxa_get_exception_ptr == 2) \ + flag_use_cxa_get_exception_ptr = 0; \ + /* APPLE LOCAL begin 5731065 */ \ + /* moved flag_no_builtin to darwin.h */ \ + /* APPLE LOCAL end 5731065 */ \ + SUBTARGET_C_COMMON_OVERRIDE_OPTIONS; \ +} while (0) +/* APPLE LOCAL end mainline */ + +/* Darwin has 128-bit long double support in libc in 10.4 and later. + Default to 128-bit long doubles even on earlier platforms for ABI + consistency; arithmetic will work even if libc and libm support is + not available. */ + +#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 + + +/* We want -fPIC by default, unless we're using -static to compile for + the kernel or some such. */ + +#define CC1_SPEC "\ + "/* APPLE LOCAL ARM ignore -mthumb and -mno-thumb */"\ + %<mthumb %<mno-thumb \ + "/* APPLE LOCAL ignore -msse and -msse2 and other x86 options */"\ + %<msse %<msse2 %<msse3 %<march=pentium4 %<mcpu=pentium4 \ + %{g: %{!fno-eliminate-unused-debug-symbols: -feliminate-unused-debug-symbols }} \ + %{static: %{Zdynamic: %e conflicting code gen style switches are used}}\ + "/* APPLE LOCAL ARM 5683689 */"\ + %{!mmacosx-version-min=*: %{!miphoneos-version-min=*: %(darwin_cc1_minversion)}} \ + "/* APPLE LOCAL -fast or -fastf or -fastcp */"\ + %{!mkernel:%{!static:%{!fast:%{!fastf:%{!fastcp:%{!mdynamic-no-pic:-fPIC}}}}}}" + +#define DARWIN_ARCH_SPEC "%{m64:ppc64;:ppc}" + +#define DARWIN_SUBARCH_SPEC " \ + %{m64: ppc64} \ + %{!m64: \ + %{mcpu=601:ppc601; \ + mcpu=603:ppc603; \ + mcpu=603e:ppc603; \ + mcpu=604:ppc604; \ + mcpu=604e:ppc604e; \ + mcpu=740:ppc750; \ + mcpu=750:ppc750; \ + mcpu=G3:ppc750; \ + mcpu=7400:ppc7400; \ + mcpu=G4:ppc7400; \ + mcpu=7450:ppc7450; \ + mcpu=970:ppc970; \ + mcpu=power4:ppc970; \ + mcpu=G5:ppc970; \ + :ppc}}" + +/* crt2.o is at least partially required for 10.3.x and earlier. */ +/* APPLE LOCAL begin ARM 5683689 */ +#define DARWIN_CRT2_SPEC \ + "%{!m64: %{mmacosx-version-min=*: \ + %:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s)}}" +/* APPLE LOCAL end ARM 5683689 */ + +/* APPLE LOCAL begin mainline 2007-03-13 5005743 5040758 */ \ +/* Determine a minimum version based on compiler options. */ +#define DARWIN_MINVERSION_SPEC \ + "%{m64:%{fgnu-runtime:10.4; \ + ,objective-c|,objc-cpp-output:10.5; \ + ,objective-c-header:10.5; \ + ,objective-c++|,objective-c++-cpp-output:10.5; \ + ,objective-c++-header|,objc++-cpp-output:10.5; \ + :10.4}; \ + shared-libgcc:10.3; \ + :10.1}" + +/* APPLE LOCAL end mainline 2007-03-13 5040758 5005743 */ +/* APPLE LOCAL begin ARM 5683689 */ +/* Default cc1 option for specifying minimum version number. */ +#define DARWIN_CC1_MINVERSION_SPEC "-mmacosx-version-min=%(darwin_minversion)" + +/* Default ld option for specifying minimum version number. */ +#define DARWIN_LD_MINVERSION_SPEC "-macosx_version_min %(darwin_minversion)" + +/* Use macosx version numbers by default. */ +#define DARWIN_DEFAULT_VERSION_TYPE DARWIN_VERSION_MACOSX +/* APPLE LOCAL end ARM 5683689 */ + +/* APPLE LOCAL ARM 5681645 8307333 */ +#define DARWIN_IPHONEOS_LIBGCC_SPEC "-lgcc" + +/* APPLE LOCAL begin mainline */ +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + DARWIN_EXTRA_SPECS \ + { "darwin_arch", DARWIN_ARCH_SPEC }, \ + { "darwin_crt2", DARWIN_CRT2_SPEC }, \ + { "darwin_subarch", DARWIN_SUBARCH_SPEC }, +/* APPLE LOCAL end mainline */ + +/* Output a .machine directive. */ +#undef TARGET_ASM_FILE_START +#define TARGET_ASM_FILE_START rs6000_darwin_file_start + +/* The "-faltivec" option should have been called "-maltivec" all + along. -ffix-and-continue and -findirect-data is for compatibility + for old compilers. */ + +#define SUBTARGET_OPTION_TRANSLATE_TABLE \ + { "-ffix-and-continue", "-mfix-and-continue" }, \ + { "-findirect-data", "-mfix-and-continue" }, \ + /* APPLE LOCAL AltiVec */ \ + { "-faltivec", "-faltivec -mpim-altivec" }, \ + { "-fno-altivec", "-mno-altivec" }, \ + { "-Waltivec-long-deprecated", "-mwarn-altivec-long" }, \ + { "-Wno-altivec-long-deprecated", "-mno-warn-altivec-long" } + +/* Make both r2 and r13 available for allocation. */ +#define FIXED_R2 0 +#define FIXED_R13 0 + +/* Base register for access to local variables of the function. */ + +#undef HARD_FRAME_POINTER_REGNUM +#define HARD_FRAME_POINTER_REGNUM 30 + +#undef RS6000_PIC_OFFSET_TABLE_REGNUM +#define RS6000_PIC_OFFSET_TABLE_REGNUM 31 + +/* APPLE LOCAL begin -pg fix */ +/* -pg has a problem which is normally concealed by -fPIC; + either -mdynamic-no-pic or -static exposes the -pg problem, causing the + crash. FSF gcc for Darwin also has this bug. The problem is that -pg + causes several int registers to be saved and restored although they may + not actually be used (config/rs6000/rs6000.c:first_reg_to_save()). In the + rare case where none of them is actually used, a consistency check fails + (correctly). This cannot happen with -fPIC because the PIC register (R31) + is always "used" in the sense checked by the consistency check. The + easy fix, here, is therefore to mark R31 always "used" whenever -pg is on. + A better, but harder, fix would be to improve -pg's register-use + logic along the lines suggested by comments in the function listed above. */ +#undef PIC_OFFSET_TABLE_REGNUM +#define PIC_OFFSET_TABLE_REGNUM ((flag_pic || profile_flag) \ + ? RS6000_PIC_OFFSET_TABLE_REGNUM \ + : INVALID_REGNUM) +/* APPLE LOCAL end -pg fix */ + +/* Pad the outgoing args area to 16 bytes instead of the usual 8. */ + +#undef STARTING_FRAME_OFFSET +#define STARTING_FRAME_OFFSET \ + (FRAME_GROWS_DOWNWARD \ + ? 0 \ + : (RS6000_ALIGN (current_function_outgoing_args_size, 16) \ + + RS6000_SAVE_AREA)) + +#undef STACK_DYNAMIC_OFFSET +#define STACK_DYNAMIC_OFFSET(FUNDECL) \ + (RS6000_ALIGN (current_function_outgoing_args_size, 16) \ + + (STACK_POINTER_OFFSET)) + +/* These are used by -fbranch-probabilities */ +#define HOT_TEXT_SECTION_NAME "__TEXT,__text,regular,pure_instructions" +#define UNLIKELY_EXECUTED_TEXT_SECTION_NAME \ + "__TEXT,__unlikely,regular,pure_instructions" + +/* APPLE LOCAL begin long call hot cold */ +/* The following is used by hot/cold partitioning to determine whether to + unconditional branches are "long enough" to span the distance between + hot and cold sections (otherwise we have to use indirect jumps). It + is set based on the -mlongcall flag. + If -mlongcall is set, we use the indirect jumps (the macro below gets '0'); + otherwise we use unconditional branches (the macro below gets '1'). */ +#define HAS_LONG_UNCOND_BRANCH (rs6000_default_long_calls ? 0 : 1) +/* APPLE LOCAL end long call hot cold */ + +/* APPLE LOCAL begin long-branch */ +/* Define cutoff for using external functions to save floating point. + For Darwin, use the function for more than a few registers. */ + +/* APPLE LOCAL begin inline FP save/restore (radar 3414605) */ +#undef FP_SAVE_INLINE +#define FP_SAVE_INLINE(FIRST_REG) \ +(optimize >= 3 \ +|| ((FIRST_REG) > 60 && (FIRST_REG) < 64) \ +|| rs6000_default_long_calls) +/* APPLE LOCAL end inline FP save/restore (radar 3414605) */ + +/* Define cutoff for using external functions to save vector registers. */ + +#undef VECTOR_SAVE_INLINE +#define VECTOR_SAVE_INLINE(FIRST_REG) \ + (((FIRST_REG) >= LAST_ALTIVEC_REGNO - 1 && (FIRST_REG) <= LAST_ALTIVEC_REGNO) \ + || rs6000_default_long_calls) +/* APPLE LOCAL end long-branch */ + +/* Darwin uses a function call if everything needs to be saved/restored. */ +#undef WORLD_SAVE_P +#define WORLD_SAVE_P(INFO) ((INFO)->world_save_p) + +/* The assembler wants the alternate register names, but without + leading percent sign. */ +#undef REGISTER_NAMES +#define REGISTER_NAMES \ +{ \ + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ + "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ + "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ + "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ + "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ + "mq", "lr", "ctr", "ap", \ + "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ + "xer", \ + "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", \ + "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", \ + "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", \ + "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", \ + "vrsave", "vscr", \ + "spe_acc", "spefscr", \ + "sfp" \ + /* APPLE LOCAL 3399553 */ \ + , "fpscr" \ +} + +/* This outputs NAME to FILE. */ + +#undef RS6000_OUTPUT_BASENAME +#define RS6000_OUTPUT_BASENAME(FILE, NAME) \ + assemble_name (FILE, NAME) + +/* Globalizing directive for a label. */ +#undef GLOBAL_ASM_OP +#define GLOBAL_ASM_OP "\t.globl " +#undef TARGET_ASM_GLOBALIZE_LABEL + +/* This is how to output an internal label prefix. rs6000.c uses this + when generating traceback tables. */ +/* Not really used for Darwin? */ + +#undef ASM_OUTPUT_INTERNAL_LABEL_PREFIX +#define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ + fprintf (FILE, "%s", PREFIX) + +/* This says how to output an assembler line to define a global common + symbol. */ +#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ + do { \ + unsigned HOST_WIDE_INT _new_size = SIZE; \ + fputs (".comm ", (FILE)); \ + RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \ + if (_new_size == 0) _new_size = 1; \ + fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n", _new_size); \ + } while (0) + +/* Override the standard rs6000 definition. */ + +#undef ASM_COMMENT_START +#define ASM_COMMENT_START ";" + +/* APPLE LOCAL reduce code size */ +/* Don't define SAVE_FP_PREFIX and friends */ + +/* This is how to output an assembler line that says to advance + the location counter to a multiple of 2**LOG bytes using the + "nop" instruction as padding. */ + +#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \ + do \ + { \ + if ((LOG) < 3) \ + { \ + ASM_OUTPUT_ALIGN (FILE,LOG); \ + } \ + else /* nop == ori r0,r0,0 */ \ + fprintf (FILE, "\t.align32 %d,0x60000000\n", (LOG)); \ + } while (0) + +#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN +/* This is supported in cctools 465 and later. The macro test + above prevents using it in earlier build environments. */ +#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ + if ((LOG) != 0) \ + { \ + if ((MAX_SKIP) == 0) \ + fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ + else \ + fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ + } +#endif + +/* Generate insns to call the profiler. */ + +#define PROFILE_HOOK(LABEL) output_profile_hook (LABEL) + +/* Function name to call to do profiling. */ + +#define RS6000_MCOUNT "*mcount" + +/* APPLE LOCAL begin 4298879. */ +/* Default processor (for -mtune): G5 when not optimizing for size othwerise G4. + It is G5 by default for 64-bit in all cases. */ +/* APPLE LOCAL end 4298879. */ +#undef PROCESSOR_DEFAULT +/* APPLE LOCAL 4298879. */ +#define PROCESSOR_DEFAULT (optimize_size ? PROCESSOR_PPC7400 : PROCESSOR_POWER4) +#undef PROCESSOR_DEFAULT64 +#define PROCESSOR_DEFAULT64 PROCESSOR_POWER4 + +/* Default target flag settings. Despite the fact that STMW/LMW + serializes, it's still a big code size win to use them. Use FSEL by + default as well. */ + +#undef TARGET_DEFAULT +#define TARGET_DEFAULT (MASK_POWERPC | MASK_MULTIPLE | MASK_NEW_MNEMONICS \ + | MASK_PPC_GFXOPT) + +/* Darwin only runs on PowerPC, so short-circuit POWER patterns. */ +#undef TARGET_POWER +#define TARGET_POWER 0 +#undef TARGET_IEEEQUAD +#define TARGET_IEEEQUAD 0 + +/* Since Darwin doesn't do TOCs, stub this out. */ + +#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) ((void)X, (void)MODE, 0) + +/* Unlike most other PowerPC targets, chars are signed, for + consistency with other Darwin architectures. */ + +#undef DEFAULT_SIGNED_CHAR +#define DEFAULT_SIGNED_CHAR (1) + +/* Given an rtx X being reloaded into a reg required to be + in class CLASS, return the class of reg to actually use. + In general this is just CLASS; but on some machines + in some cases it is preferable to use a more restrictive class. + + On the RS/6000, we have to return NO_REGS when we want to reload a + floating-point CONST_DOUBLE to force it to be copied to memory. + + Don't allow R0 when loading the address of, or otherwise furtling with, + a SYMBOL_REF. */ + +#undef PREFERRED_RELOAD_CLASS +#define PREFERRED_RELOAD_CLASS(X,CLASS) \ + ((CONSTANT_P (X) \ + && reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \ + ? NO_REGS \ + : ((GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == HIGH) \ + && reg_class_subset_p (BASE_REGS, (CLASS))) \ + ? BASE_REGS \ + : (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \ + && (CLASS) == NON_SPECIAL_REGS) \ + ? GENERAL_REGS \ + : (CLASS)) + +/* APPLE LOCAL begin Macintosh alignment 2002-2-26 --ff */ +#define darwin_alignment_flags rs6000_alignment_flags +#define OPTION_ALIGN_NATURAL TARGET_ALIGN_NATURAL +#define OPTION_MASK_ALIGN_NATURAL MASK_ALIGN_NATURAL +/* APPLE LOCAL begin mainline 2006-10-31 PR 23067, radar 4869885 */ +/* This now supports the Macintosh power, mac68k, and natural + alignment modes. + + Compute field alignment. This is similar to the version of the + macro in the Apple version of GCC, except that version supports + 'mac68k' alignment, and that version uses the computed alignment + always for the first field of a structure. The first-field + behavior is dealt with by + darwin_rs6000_special_round_type_align. */ +/* APPLE LOCAL end mainline 2006-10-31 PR 23067, radar 4869885 */ +#undef ADJUST_FIELD_ALIGN +/* APPLE LOCAL begin mainline 2006-10-31 PR 23067, radar 4869885 */ +#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ + (TARGET_ALIGN_NATURAL ? (COMPUTED) \ + : (((COMPUTED) == RS6000_VECTOR_ALIGNMENT) \ + ? RS6000_VECTOR_ALIGNMENT \ + : (MIN ((COMPUTED), \ + (OPTION_ALIGN_MAC68K ? 16 \ + : 32))))) +/* APPLE LOCAL end mainline 2006-10-31 PR 23067, radar 4869885 */ + +/* When adjusting (lowering) the alignment of fields when in the + mac68k alignment mode, the 128-bit alignment of vectors *MUST* + be preserved. */ +#undef PEG_ALIGN_FOR_MAC68K +#define PEG_ALIGN_FOR_MAC68K(DESIRED) \ + ((DESIRED) == RS6000_VECTOR_ALIGNMENT ? RS6000_VECTOR_ALIGNMENT \ + : MIN ((DESIRED), 16)) + +/* APPLE LOCAL begin mainline 2006-10-31 PR 23067, radar 4869885 */ +/* Darwin increases natural record alignment to doubleword if the first + field is an FP double while the FP fields remain word aligned. */ +#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \ + ((TREE_CODE (STRUCT) == RECORD_TYPE \ + || TREE_CODE (STRUCT) == UNION_TYPE \ + || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \ + && TARGET_ALIGN_NATURAL == 0 \ + ? darwin_rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ + : (TREE_CODE (STRUCT) == VECTOR_TYPE \ + && ALTIVEC_VECTOR_MODE (TYPE_MODE (STRUCT))) \ + ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \ + : MAX ((COMPUTED), (SPECIFIED))) +/* APPLE LOCAL end mainline 2006-10-31 PR 23067, radar 4869885 */ +/* APPLE LOCAL end Macintosh alignment 2002-2-26 --ff */ + +/* APPLE LOCAL begin alignment */ +/* Make sure local alignments come from the type node, not the mode; + mode-based alignments are wrong for vectors. */ +#undef LOCAL_ALIGNMENT +#define LOCAL_ALIGNMENT(TYPE, ALIGN) \ + (MIN (BIGGEST_ALIGNMENT, \ + MAX ((unsigned) ALIGN, TYPE_ALIGN (TYPE)))) +/* APPLE LOCAL end alignment */ + +/* Specify padding for the last element of a block move between + registers and memory. FIRST is nonzero if this is the only + element. */ +#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \ + (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE)) + +/* XXX: Darwin supports neither .quad, or .llong, but it also doesn't + support 64 bit PowerPC either, so this just keeps things happy. */ +#define DOUBLE_INT_ASM_OP "\t.quad\t" + +/* APPLE LOCAL begin branch cost */ +#undef BRANCH_COST +/* Better code is generated by saying conditional branches take 1 tick. */ +#define BRANCH_COST 1 +/* APPLE LOCAL end branch cost */ + +/* APPLE LOCAL begin indirect calls in R12 */ +/* Address of indirect call must be computed here */ +#define MAGIC_INDIRECT_CALL_REG 12 +/* APPLE LOCAL end indirect calls in R12 */ + +/* For binary compatibility with 2.95; Darwin C APIs use bool from + stdbool.h, which was an int-sized enum in 2.95. Users can explicitly + choose to have sizeof(bool)==1 with the -mone-byte-bool switch. */ +#define BOOL_TYPE_SIZE (darwin_one_byte_bool ? CHAR_TYPE_SIZE : INT_TYPE_SIZE) + +#undef REGISTER_TARGET_PRAGMAS +#define REGISTER_TARGET_PRAGMAS() \ + do \ + { \ + DARWIN_REGISTER_TARGET_PRAGMAS(); \ + targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin; \ + } \ + while (0) + +#ifdef IN_LIBGCC2 +#include <stdbool.h> +#endif + +#define MD_UNWIND_SUPPORT "config/rs6000/darwin-unwind.h" + +#define HAS_MD_FALLBACK_FRAME_STATE_FOR 1 + +/* True, iff we're generating fast turn around debugging code. When + true, we arrange for function prologues to start with 5 nops so + that gdb may insert code to redirect them, and for data to be + accessed indirectly. The runtime uses this indirection to forward + references for data to the original instance of that data. */ + +#define TARGET_FIX_AND_CONTINUE (darwin_fix_and_continue) + +/* APPLE LOCAL begin radar 4590221 */ +/* This is reserved to set flag_objc_direct_dispatch for Objective-C. */ +#define HAVE_OFFS_MSGSEND_FAST \ + (flag_next_runtime \ + && flag_objc_direct_dispatch != 0 \ + && !TARGET_64BIT \ +/* APPLE LOCAL begin ARM 5683689 */ \ + && (darwin_iphoneos_version_min \ + || strverscmp (darwin_macosx_version_min, "10.4") >= 0 \ +/* APPLE LOCAL end ARM 5683689 */ \ + || flag_objc_direct_dispatch == 1)) + +/* This is the reserved direct dispatch address for Objective-C. */ +#define OFFS_MSGSEND_FAST \ + (HAVE_OFFS_MSGSEND_FAST ? 0xFFFEFF00 : 0) + +/* This is the reserved ivar address Objective-C. */ +#define OFFS_ASSIGNIVAR_FAST \ + (HAVE_OFFS_MSGSEND_FAST ? 0xFFFEFEC0 : 0) +/* APPLE LOCAL end radar 4590221 */ + +/* Old versions of Mac OS/Darwin don't have C99 functions available. */ +#undef TARGET_C99_FUNCTIONS +#define TARGET_C99_FUNCTIONS \ + (TARGET_64BIT \ + /* APPLE LOCAL begin ARM 5683689 */ \ + || darwin_iphoneos_version_min \ + || strverscmp (darwin_macosx_version_min, "10.3") >= 0) + /* APPLE LOCAL end ARM 5683689 */ + +/* APPLE LOCAL begin track initialization status 4964532 */ +/* APPLE LOCAL begin ARM 5683689 */ +#undef TARGET_DWARF_UNINIT_VARS +#define TARGET_DWARF_UNINIT_VARS \ + (darwin_iphoneos_version_min \ + || (strverscmp (darwin_macosx_version_min, "10.4") >= 0)) +/* APPLE LOCAL end ARM 5683689 */ +/* APPLE LOCAL end track initialization status 4964532 */ + +/* When generating kernel code or kexts, we don't use Altivec by + default, as kernel code doesn't save/restore those registers. */ +#define OS_MISSING_ALTIVEC (flag_mkernel || flag_apple_kext) + +/* APPLE LOCAL begin x86_64 */ +#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \ + if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) \ + { \ + darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \ + goto DONE; \ + } +/* APPLE LOCAL end x86_64 */ + +/* APPLE LOCAL KEXT */ +#define TARGET_SUPPORTS_KEXTABI1 (! TARGET_64BIT) |