diff options
Diffstat (limited to 'contrib/gcc/config/rs6000/darwin.h')
| -rw-r--r-- | contrib/gcc/config/rs6000/darwin.h | 170 |
1 files changed, 123 insertions, 47 deletions
diff --git a/contrib/gcc/config/rs6000/darwin.h b/contrib/gcc/config/rs6000/darwin.h index b3468f2..62ed74c 100644 --- a/contrib/gcc/config/rs6000/darwin.h +++ b/contrib/gcc/config/rs6000/darwin.h @@ -1,23 +1,23 @@ /* Target definitions for PowerPC running Darwin (Mac OS X). - Copyright (C) 1997, 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 1997, 2000, 2001, 2003, 2004 Free Software Foundation, Inc. Contributed by Apple Computer Inc. -This file is part of GNU CC. + This file is part of GCC. -GNU CC 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 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. -GNU CC 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. + 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 GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ + 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. */ #undef TARGET_VERSION #define TARGET_VERSION fprintf (stderr, " (Darwin/PowerPC)"); @@ -35,14 +35,15 @@ Boston, MA 02111-1307, USA. */ #define TARGET_TOC 0 #define TARGET_NO_TOC 1 +/* Darwin switches. */ +/* Use dynamic-no-pic codegen (no picbase reg; not suitable for shlibs.) */ +#define MASK_MACHO_DYNAMIC_NO_PIC 0x00800000 + +#define TARGET_DYNAMIC_NO_PIC (target_flags & MASK_MACHO_DYNAMIC_NO_PIC) + /* Handle #pragma weak and #pragma pack. */ #define HANDLE_SYSV_PRAGMA 1 -/* The Darwin ABI always includes AltiVec, can't be (validly) turned - off. */ - -#define SUBTARGET_OVERRIDE_OPTIONS \ - rs6000_altivec_abi = 1; #define TARGET_OS_CPP_BUILTINS() \ do \ @@ -55,12 +56,60 @@ Boston, MA 02111-1307, USA. */ } \ while (0) + +/* */ +#undef SUBTARGET_SWITCHES +#define SUBTARGET_SWITCHES \ + {"dynamic-no-pic", MASK_MACHO_DYNAMIC_NO_PIC, \ + N_("Generate code suitable for executables (NOT shared libs)")}, \ + {"no-dynamic-no-pic", -MASK_MACHO_DYNAMIC_NO_PIC, ""}, + + +/* The Darwin ABI always includes AltiVec, can't be (validly) turned + off. */ + +#define SUBTARGET_OVERRIDE_OPTIONS \ +do { \ + rs6000_altivec_abi = 1; \ + rs6000_altivec_vrsave = 1; \ + if (DEFAULT_ABI == ABI_DARWIN) \ + { \ + if (MACHO_DYNAMIC_NO_PIC_P) \ + { \ + if (flag_pic) \ + warning ("-mdynamic-no-pic overrides -fpic or -fPIC"); \ + flag_pic = 0; \ + } \ + else if (flag_pic == 1) \ + { \ + /* Darwin doesn't support -fpic. */ \ + warning ("-fpic is not supported; -fPIC assumed"); \ + flag_pic = 2; \ + } \ + } \ +}while(0) + /* We want -fPIC by default, unless we're using -static to compile for the kernel or some such. */ + #define CC1_SPEC "\ +%{gused: -feliminate-unused-debug-symbols %<gused }\ %{static: %{Zdynamic: %e conflicting code gen style switches are used}}\ -%{!static:-fPIC}" +%{!static:%{!mdynamic-no-pic:-fPIC}}" + +/* It's virtually impossible to predict all the possible combinations + of -mcpu and -maltivec and whatnot, so just supply + -force_cpusubtype_ALL if any are seen. Radar 3492132 against the + assembler is asking for a .machine directive so we could get this + really right. */ +#define ASM_SPEC "-arch ppc \ + %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \ + %{!Zforce_cpusubtype_ALL:%{maltivec|mcpu=*|mpowerpc64:-force_cpusubtype_ALL}}" + +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + { "darwin_arch", "ppc" }, /* Make both r2 and r3 available for allocation. */ #define FIXED_R2 0 @@ -87,23 +136,46 @@ Boston, MA 02111-1307, USA. */ (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,__text2,regular,pure_instructions" + /* Define cutoff for using external functions to save floating point. Currently on Darwin, always use inline stores. */ #undef FP_SAVE_INLINE #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64) -/* Always use the "debug" register names, they're what the assembler - wants to see. */ - +/* The assembler wants the alternate register names, but without + leading percent sign. */ #undef REGISTER_NAMES -#define REGISTER_NAMES DEBUG_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" \ +} /* This outputs NAME to FILE. */ #undef RS6000_OUTPUT_BASENAME #define RS6000_OUTPUT_BASENAME(FILE, NAME) \ - assemble_name (FILE, NAME); + assemble_name (FILE, NAME) /* Globalizing directive for a label. */ #undef GLOBAL_ASM_OP @@ -125,7 +197,8 @@ Boston, MA 02111-1307, USA. */ #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ do { fputs (".comm ", (FILE)); \ RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \ - fprintf ((FILE), ",%d\n", (SIZE)); } while (0) + fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ + (SIZE)); } while (0) /* Override the standard rs6000 definition. */ @@ -167,7 +240,7 @@ Boston, MA 02111-1307, USA. */ #define PROCESSOR_DEFAULT PROCESSOR_PPC7400 /* Default target flag settings. Despite the fact that STMW/LMW - serializes, it's still a big codesize win to use them. Use FSEL by + serializes, it's still a big code size win to use them. Use FSEL by default as well. */ #undef TARGET_DEFAULT @@ -196,38 +269,40 @@ Boston, MA 02111-1307, USA. */ a SYMBOL_REF. */ #undef PREFERRED_RELOAD_CLASS -#define PREFERRED_RELOAD_CLASS(X,CLASS) \ - (((GET_CODE (X) == CONST_DOUBLE \ - && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \ - ? NO_REGS \ - : (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \ - && (CLASS) == NON_SPECIAL_REGS) \ - ? GENERAL_REGS \ - : (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == HIGH) \ - ? BASE_REGS \ - : (CLASS))) +#define PREFERRED_RELOAD_CLASS(X,CLASS) \ + ((GET_CODE (X) == CONST_DOUBLE \ + && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \ + ? 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)) /* Fix for emit_group_load (): force large constants to be pushed via regs. */ #define ALWAYS_PUSH_CONSTS_USING_REGS_P 1 +/* This now supports a natural alignment mode */ /* Darwin word-aligns FP doubles but doubleword-aligns 64-bit ints. */ #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ + (TARGET_ALIGN_NATURAL ? (COMPUTED) : \ (TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \ ? get_inner_array_type (FIELD) \ : TREE_TYPE (FIELD)) == DFmode \ - ? MIN ((COMPUTED), 32) : (COMPUTED)) + ? MIN ((COMPUTED), 32) : (COMPUTED))) /* 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) \ - && TYPE_FIELDS (STRUCT) != 0 \ - && DECL_MODE (TYPE_FIELDS (STRUCT)) == DFmode \ - ? MAX (MAX ((COMPUTED), (SPECIFIED)), 64) \ - : (TARGET_ALTIVEC && TREE_CODE (STRUCT) == VECTOR_TYPE) \ - ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \ +#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 \ + ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ + : (TARGET_ALTIVEC && TREE_CODE (STRUCT) == VECTOR_TYPE) \ + ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \ : MAX ((COMPUTED), (SPECIFIED))) /* XXX: Darwin supports neither .quad, or .llong, but it also doesn't @@ -245,3 +320,4 @@ Boston, MA 02111-1307, USA. */ #undef REGISTER_TARGET_PRAGMAS #define REGISTER_TARGET_PRAGMAS DARWIN_REGISTER_TARGET_PRAGMAS + |
