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gcc41
large-gcc.diff
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File large-gcc.diff of Package gcc41
Index: gcc/reg-stack.c =================================================================== --- gcc/reg-stack.c.orig 2006-06-22 18:11:03.000000000 +0200 +++ gcc/reg-stack.c 2009-11-20 13:41:03.000000000 +0100 @@ -3114,7 +3114,8 @@ reg_to_stack (FILE *file) the PIC register hasn't been set up. In that case, fall back on zero, which we can get from `ldz'. */ - if (flag_pic) + if ((flag_pic && !TARGET_64BIT) + || ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC) not_a_num = CONST0_RTX (SFmode); else { Index: gcc/config/i386/i386-protos.h =================================================================== --- gcc/config/i386/i386-protos.h.orig 2005-12-23 12:39:16.000000000 +0100 +++ gcc/config/i386/i386-protos.h 2009-11-20 13:41:03.000000000 +0100 @@ -228,5 +228,6 @@ extern void x86_elf_aligned_common (FILE extern void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, enum rtx_code *, enum rtx_code *); extern enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); +extern rtx construct_plt_address (rtx); #endif extern int asm_preferred_eh_data_format (int, int); Index: gcc/config/i386/i386.c =================================================================== --- gcc/config/i386/i386.c.orig 2006-11-21 14:16:53.000000000 +0100 +++ gcc/config/i386/i386.c 2009-11-20 13:41:03.000000000 +0100 @@ -1318,14 +1318,14 @@ override_options (void) ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL; else if (!strcmp (ix86_cmodel_string, "medium")) ix86_cmodel = flag_pic ? CM_MEDIUM_PIC : CM_MEDIUM; + else if (!strcmp (ix86_cmodel_string, "large")) + ix86_cmodel = flag_pic ? CM_LARGE_PIC : CM_LARGE; else if (flag_pic) - sorry ("code model %s not supported in PIC mode", ix86_cmodel_string); + error ("code model %s does not support PIC mode", ix86_cmodel_string); else if (!strcmp (ix86_cmodel_string, "32")) ix86_cmodel = CM_32; else if (!strcmp (ix86_cmodel_string, "kernel") && !flag_pic) ix86_cmodel = CM_KERNEL; - else if (!strcmp (ix86_cmodel_string, "large") && !flag_pic) - ix86_cmodel = CM_LARGE; else error ("bad value (%s) for -mcmodel= switch", ix86_cmodel_string); } @@ -1348,8 +1348,6 @@ override_options (void) if ((TARGET_64BIT == 0) != (ix86_cmodel == CM_32)) error ("code model %qs not supported in the %s bit mode", ix86_cmodel_string, TARGET_64BIT ? "64" : "32"); - if (ix86_cmodel == CM_LARGE) - sorry ("code model %<large%> not supported yet"); if ((TARGET_64BIT != 0) != ((target_flags & MASK_64BIT) != 0)) sorry ("%i-bit mode not compiled in", (target_flags & MASK_64BIT) ? 64 : 32); @@ -5031,7 +5029,25 @@ ix86_expand_prologue (void) if (pic_reg_used) { if (TARGET_64BIT) - insn = emit_insn (gen_set_got_rex64 (pic_offset_table_rtx)); + { + if (ix86_cmodel == CM_LARGE_PIC) + { + rtx tmp_reg = gen_rtx_REG (DImode, + FIRST_REX_INT_REG + 3 /* R11 */); + rtx label = gen_label_rtx (); + emit_label (label); + LABEL_PRESERVE_P (label) = 1; + gcc_assert (REGNO (pic_offset_table_rtx) != REGNO (tmp_reg)); + insn = emit_insn (gen_set_rip_rex64 (pic_offset_table_rtx, label)); + REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL); + insn = emit_insn (gen_set_got_offset_rex64 (tmp_reg, label)); + REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL); + insn = emit_insn (gen_adddi3 (pic_offset_table_rtx, + pic_offset_table_rtx, tmp_reg)); + } + else + insn = emit_insn (gen_set_got_rex64 (pic_offset_table_rtx)); + } else insn = emit_insn (gen_set_got (pic_offset_table_rtx)); @@ -5569,7 +5585,9 @@ legitimate_constant_p (rtx x) if (GET_CODE (x) == UNSPEC) switch (XINT (x, 1)) { + case UNSPEC_GOT: case UNSPEC_GOTOFF: + case UNSPEC_PLTOFF: return TARGET_64BIT; case UNSPEC_TPOFF: case UNSPEC_NTPOFF: @@ -5667,7 +5685,9 @@ legitimate_pic_operand_p (rtx x) if (GET_CODE (inner) == UNSPEC) switch (XINT (inner, 1)) { + case UNSPEC_GOT: case UNSPEC_GOTOFF: + case UNSPEC_PLTOFF: return TARGET_64BIT; case UNSPEC_TPOFF: x = XVECEXP (inner, 0, 0); @@ -5725,7 +5745,9 @@ legitimate_pic_address_disp_p (rtx disp) /* TLS references should always be enclosed in UNSPEC. */ if (SYMBOL_REF_TLS_MODEL (op0)) return false; - if (!SYMBOL_REF_FAR_ADDR_P (op0) && SYMBOL_REF_LOCAL_P (op0)) + if (!SYMBOL_REF_FAR_ADDR_P (op0) + && ix86_cmodel != CM_LARGE_PIC + && SYMBOL_REF_LOCAL_P (op0)) return true; break; @@ -5743,7 +5765,8 @@ legitimate_pic_address_disp_p (rtx disp) of GOT tables. We should not need these anyway. */ if (GET_CODE (disp) != UNSPEC || (XINT (disp, 1) != UNSPEC_GOTPCREL - && XINT (disp, 1) != UNSPEC_GOTOFF)) + && XINT (disp, 1) != UNSPEC_GOTOFF + && XINT (disp, 1) != UNSPEC_PLTOFF)) return 0; if (GET_CODE (XVECEXP (disp, 0, 0)) != SYMBOL_REF @@ -6153,7 +6176,7 @@ legitimize_pic_address (rtx orig, rtx re } else if (GET_CODE (addr) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (addr) == 0) { - if (TARGET_64BIT) + if (TARGET_64BIT && ix86_cmodel != CM_LARGE_PIC) { new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTPCREL); new = gen_rtx_CONST (Pmode, new); @@ -6177,6 +6200,8 @@ legitimize_pic_address (rtx orig, rtx re regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOT); new = gen_rtx_CONST (Pmode, new); + if (TARGET_64BIT) + new = force_reg (Pmode, new); new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); new = gen_const_mem (Pmode, new); set_mem_alias_set (new, ix86_GOT_alias_set ()); @@ -6707,6 +6732,9 @@ output_pic_addr_const (FILE *file, rtx x case UNSPEC_GOTOFF: fputs ("@GOTOFF", file); break; + case UNSPEC_PLTOFF: + fputs ("@PLTOFF", file); + break; case UNSPEC_GOTPCREL: fputs ("@GOTPCREL(%rip)", file); break; @@ -8277,9 +8305,17 @@ ix86_output_addr_vec_elt (FILE *file, in void ix86_output_addr_diff_elt (FILE *file, int value, int rel) { + const char *directive = ASM_LONG; + +#ifdef ASM_QUAD + if (TARGET_64BIT && CASE_VECTOR_MODE == DImode) + directive = ASM_QUAD; +#else + gcc_assert (!TARGET_64BIT); +#endif if (TARGET_64BIT) fprintf (file, "%s%s%d-%s%d\n", - ASM_LONG, LPREFIX, value, LPREFIX, rel); + directive, LPREFIX, value, LPREFIX, rel); else if (HAVE_AS_GOTOFF_IN_DATA) fprintf (file, "%s%s%d@GOTOFF\n", ASM_LONG, LPREFIX, value); #if TARGET_MACHO @@ -8394,8 +8430,8 @@ ix86_expand_move (enum machine_mode mode #else if (GET_CODE (op0) == MEM) op1 = force_reg (Pmode, op1); - else - op1 = legitimize_address (op1, op1, Pmode); + else if (!TARGET_64BIT || !x86_64_movabs_operand (op1, Pmode)) + op1 = legitimize_pic_address (op1, REG_P (op0) ? op0 : 0); #endif /* TARGET_MACHO */ } else @@ -12777,6 +12813,22 @@ ix86_expand_strlensi_unroll_1 (rtx out, emit_label (end_0_label); } +/* For given symbol (function) construct code to compute address of it's PLT + entry in large x86-64 PIC model. */ +rtx +construct_plt_address (rtx symbol) +{ + rtx tmp = gen_reg_rtx (Pmode); + rtx unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, symbol), UNSPEC_PLTOFF); + + gcc_assert (GET_CODE (symbol) == SYMBOL_REF); + gcc_assert (ix86_cmodel == CM_LARGE_PIC); + + emit_move_insn (tmp, gen_rtx_CONST (Pmode, unspec)); + emit_insn (gen_adddi3 (tmp, tmp, pic_offset_table_rtx)); + return tmp; +} + void ix86_expand_call (rtx retval, rtx fnaddr, rtx callarg1, rtx callarg2 ATTRIBUTE_UNUSED, @@ -12793,7 +12845,7 @@ ix86_expand_call (rtx retval, rtx fnaddr fnaddr = machopic_indirect_call_target (fnaddr); #else /* Static functions and indirect calls don't need the pic register. */ - if (! TARGET_64BIT && flag_pic + if (flag_pic && (!TARGET_64BIT || ix86_cmodel == CM_LARGE_PIC) && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF && ! SYMBOL_REF_LOCAL_P (XEXP (fnaddr, 0))) use_reg (&use, pic_offset_table_rtx); @@ -12806,7 +12858,12 @@ ix86_expand_call (rtx retval, rtx fnaddr } #endif /* TARGET_MACHO */ - if (! call_insn_operand (XEXP (fnaddr, 0), Pmode)) + if (ix86_cmodel == CM_LARGE_PIC + && GET_CODE (fnaddr) == MEM + && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF + && !local_symbolic_operand (XEXP (fnaddr, 0), VOIDmode)) + fnaddr = gen_rtx_MEM (QImode, construct_plt_address (XEXP (fnaddr, 0))); + else if (! call_insn_operand (XEXP (fnaddr, 0), Pmode)) { fnaddr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0)); fnaddr = gen_rtx_MEM (QImode, fnaddr); @@ -18239,7 +18296,7 @@ asm_preferred_eh_data_format (int code, { if (flag_pic) { -int type = DW_EH_PE_sdata8; + int type = DW_EH_PE_sdata8; if (!TARGET_64BIT || ix86_cmodel == CM_SMALL_PIC || (ix86_cmodel == CM_MEDIUM_PIC && (global || code))) Index: gcc/config/i386/i386.h =================================================================== --- gcc/config/i386/i386.h.orig 2007-01-15 11:11:07.000000000 +0100 +++ gcc/config/i386/i386.h 2009-11-20 13:41:03.000000000 +0100 @@ -961,14 +961,15 @@ do { \ /* Register to hold the addressing base for position independent code access to data items. We don't use PIC pointer for 64bit - mode. Define the regnum to dummy value to prevent gcc from - pessimizing code dealing with EBX. + mode in the small or medium models. For the large PIC model we use + R15. Define the regnum to dummy + value to prevent gcc from pessimizing code dealing with EBX. To avoid clobbering a call-saved register unnecessarily, we renumber the pic register when possible. The change is visible after the prologue has been emitted. */ -#define REAL_PIC_OFFSET_TABLE_REGNUM 3 +#define REAL_PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? FIRST_REX_INT_REG + 15 - 8 : 3) #define PIC_OFFSET_TABLE_REGNUM \ ((TARGET_64BIT && ix86_cmodel == CM_SMALL_PIC) \ @@ -1787,7 +1788,8 @@ do { \ /* Specify the machine mode that this machine uses for the index in the tablejump instruction. */ -#define CASE_VECTOR_MODE (!TARGET_64BIT || flag_pic ? SImode : DImode) +#define CASE_VECTOR_MODE \ + (!TARGET_64BIT || (flag_pic && ix86_cmodel != CM_LARGE_PIC) ? SImode : DImode) /* Define this as 1 if `char' should by default be signed; else as 0. */ #define DEFAULT_SIGNED_CHAR 1 @@ -2154,7 +2156,8 @@ enum cmodel { CM_MEDIUM, /* Assumes code fits in the low 31 bits; data unlimited. */ CM_LARGE, /* No assumptions. */ CM_SMALL_PIC, /* Assumes code+data+got/plt fits in a 31 bit region. */ - CM_MEDIUM_PIC /* Assumes code+got/plt fits in a 31 bit region. */ + CM_MEDIUM_PIC,/* Assumes code+got/plt fits in a 31 bit region. */ + CM_LARGE_PIC /* No assumptions. */ }; extern enum cmodel ix86_cmodel; Index: gcc/config/i386/i386.md =================================================================== --- gcc/config/i386/i386.md.orig 2006-10-24 11:43:24.000000000 +0200 +++ gcc/config/i386/i386.md 2009-11-20 13:41:03.000000000 +0100 @@ -61,6 +61,7 @@ (UNSPEC_DTPOFF 6) (UNSPEC_GOTNTPOFF 7) (UNSPEC_INDNTPOFF 8) + (UNSPEC_PLTOFF 9) ; Prologue support (UNSPEC_STACK_ALLOC 11) @@ -68,6 +69,8 @@ (UNSPEC_SSE_PROLOGUE_SAVE 13) (UNSPEC_REG_SAVE 14) (UNSPEC_DEF_CFA 15) + (UNSPEC_SET_RIP 119) + (UNSPEC_SET_GOT_OFFSET 120) ; TLS support (UNSPEC_TP 16) @@ -14021,7 +14024,8 @@ (define_insn "*call_1_rex64" [(call (mem:QI (match_operand:DI 0 "call_insn_operand" "rsm")) (match_operand 1 "" ""))] - "!SIBLING_CALL_P (insn) && TARGET_64BIT" + "!SIBLING_CALL_P (insn) && TARGET_64BIT + && ix86_cmodel != CM_LARGE && ix86_cmodel != CM_LARGE_PIC" { if (constant_call_address_operand (operands[0], Pmode)) return "call\t%P0"; @@ -14029,6 +14033,13 @@ } [(set_attr "type" "call")]) +(define_insn "*call_1_rex64_large" + [(call (mem:QI (match_operand:DI 0 "call_insn_operand" "rm")) + (match_operand 1 "" ""))] + "!SIBLING_CALL_P (insn) && TARGET_64BIT" + "call\t%A0" + [(set_attr "type" "call")]) + (define_insn "*sibcall_1_rex64" [(call (mem:QI (match_operand:DI 0 "constant_call_address_operand" "")) (match_operand 1 "" ""))] @@ -14235,6 +14246,22 @@ [(set_attr "type" "lea") (set_attr "length" "6")]) +(define_insn "set_rip_rex64" + [(set (match_operand:DI 0 "register_operand" "=r") + (unspec:DI [(match_operand:DI 1 "" "")] UNSPEC_SET_RIP))] + "TARGET_64BIT" + "lea{q}\t%l1(%%rip), %0" + [(set_attr "type" "lea") + (set_attr "length" "6")]) + +(define_insn "set_got_offset_rex64" + [(set (match_operand:DI 0 "register_operand" "=r") + (unspec:DI [(match_operand:DI 1 "" "")] UNSPEC_SET_GOT_OFFSET))] + "TARGET_64BIT" + "movabs{q}\t$_GLOBAL_OFFSET_TABLE_-%l1, %0" + [(set_attr "type" "imov") + (set_attr "length" "11")]) + (define_expand "epilogue" [(const_int 1)] "" @@ -14519,15 +14546,26 @@ (define_insn "*tls_global_dynamic_64" [(set (match_operand:DI 0 "register_operand" "=a") - (call:DI (mem:QI (match_operand:DI 2 "call_insn_operand" "")) + (call:DI (mem:QI (match_operand:DI 2 "constant_call_address_operand" "")) (match_operand:DI 3 "" ""))) (unspec:DI [(match_operand:DI 1 "tls_symbolic_operand" "")] UNSPEC_TLS_GD)] - "TARGET_64BIT" + "TARGET_64BIT && ix86_cmodel != CM_LARGE && ix86_cmodel != CM_LARGE_PIC" ".byte\t0x66\;lea{q}\t{%a1@TLSGD(%%rip), %%rdi|%%rdi, %a1@TLSGD[%%rip]}\;.word\t0x6666\;rex64\;call\t%P2" [(set_attr "type" "multi") (set_attr "length" "16")]) +(define_insn "*tls_global_dynamic_64_large" + [(set (match_operand:DI 0 "register_operand" "=a") + (call:DI (mem:QI (match_operand:DI 2 "call_insn_operand" "rm")) + (match_operand:DI 3 "" ""))) + (unspec:DI [(match_operand:DI 1 "tls_symbolic_operand" "")] + UNSPEC_TLS_GD)] + "TARGET_64BIT" + ".byte\t0x66\;lea{q}\t{%a1@TLSGD(%%rip), %%rdi|%%rdi, %a1@TLSGD[%%rip]}\;.word\t0x6666\;rex64\;call\t%A2" + [(set_attr "type" "multi") + (set_attr "length" "16")]) + (define_expand "tls_global_dynamic_64" [(parallel [(set (match_operand:DI 0 "register_operand" "") (call:DI (mem:QI (match_dup 2)) (const_int 0))) @@ -14536,6 +14574,8 @@ "" { operands[2] = ix86_tls_get_addr (); + if (ix86_cmodel == CM_LARGE_PIC) + operands[2] = construct_plt_address (operands[2]); }) (define_insn "*tls_local_dynamic_base_32_gnu" @@ -14601,6 +14641,8 @@ "" { operands[1] = ix86_tls_get_addr (); + if (ix86_cmodel == CM_LARGE_PIC) + operands[1] = construct_plt_address (operands[1]); }) ;; Local dynamic of a single variable is a lose. Show combine how @@ -20335,7 +20377,8 @@ [(set (match_operand 0 "" "") (call (mem:QI (match_operand:DI 1 "call_insn_operand" "rsm")) (match_operand:DI 2 "" "")))] - "!SIBLING_CALL_P (insn) && TARGET_64BIT" + "!SIBLING_CALL_P (insn) && TARGET_64BIT + && ix86_cmodel != CM_LARGE && ix86_cmodel != CM_LARGE_PIC" { if (constant_call_address_operand (operands[1], Pmode)) return "call\t%P1"; @@ -20343,6 +20386,14 @@ } [(set_attr "type" "callv")]) +(define_insn "*call_value_1_rex64_large" + [(set (match_operand 0 "" "") + (call (mem:QI (match_operand:DI 1 "call_insn_operand" "rm")) + (match_operand:DI 2 "" "")))] + "!SIBLING_CALL_P (insn) && TARGET_64BIT" + "call\t%A1" + [(set_attr "type" "callv")]) + (define_insn "*sibcall_value_1_rex64" [(set (match_operand 0 "" "") (call (mem:QI (match_operand:DI 1 "constant_call_address_operand" "")) Index: gcc/config/i386/predicates.md =================================================================== --- gcc/config/i386/predicates.md.orig 2006-10-09 12:05:44.000000000 +0200 +++ gcc/config/i386/predicates.md 2009-11-20 13:41:03.000000000 +0100 @@ -346,14 +346,6 @@ }) -;; Return nonzero if OP is nonmemory operand acceptable by movabs patterns. -(define_predicate "x86_64_movabs_operand" - (if_then_else (match_test "!TARGET_64BIT || !flag_pic") - (match_operand 0 "nonmemory_operand") - (ior (match_operand 0 "register_operand") - (and (match_operand 0 "const_double_operand") - (match_test "GET_MODE_SIZE (mode) <= 8"))))) - ;; Returns nonzero if OP is either a symbol reference or a sum of a symbol ;; reference and a constant. (define_predicate "symbolic_operand" @@ -398,6 +390,16 @@ } }) +;; Return nonzero if OP is nonmemory operand acceptable by movabs patterns. +(define_predicate "x86_64_movabs_operand" + (if_then_else (match_test "!TARGET_64BIT || !flag_pic") + (match_operand 0 "nonmemory_operand") + (ior (match_operand 0 "register_operand") + (ior (and (match_operand 0 "const_double_operand") + (match_test "GET_MODE_SIZE (mode) <= 8")) + (and (match_operand 0 "symbolic_operand") + (match_test "!flag_pic")))))) + ;; Return true if the operand contains a @GOT or @GOTOFF reference. (define_predicate "pic_symbolic_operand" (match_code "const") @@ -467,8 +469,9 @@ ;; Test for a pc-relative call operand (define_predicate "constant_call_address_operand" - (ior (match_code "symbol_ref") - (match_operand 0 "local_symbolic_operand"))) + (and (ior (match_code "symbol_ref") + (match_operand 0 "local_symbolic_operand")) + (match_test "ix86_cmodel != CM_LARGE && ix86_cmodel != CM_LARGE_PIC"))) ;; True for any non-virtual or eliminable register. Used in places where ;; instantiation of such a register may cause the pattern to not be recognized.
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