#include "line-map.h"
#include "input.h"
#include "tree.h"
+#include "version.h"
#include "rtl.h"
#include "tm_p.h"
#include "flags.h"
#include "intl.h"
#include "ggc.h"
#include "graph.h"
-#include "loop.h"
#include "regs.h"
#include "timevar.h"
#include "diagnostic.h"
#include "coverage.h"
#include "value-prof.h"
#include "alloc-pool.h"
+#include "tree-mudflap.h"
#if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
#include "dwarf2out.h"
const char *main_input_filename;
+#ifndef USE_MAPPED_LOCATION
+location_t unknown_location = { NULL, 0 };
+#endif
+
+/* Used to enable -fvar-tracking, -fweb and -frename-registers according
+ to optimize and default_debug_hooks in process_options (). */
+#define AUTODETECT_FLAG_VAR_TRACKING 2
+
/* Current position in real source file. */
location_t input_location;
const struct gcc_debug_hooks *debug_hooks;
+/* Debug hooks - target default. */
+
+static const struct gcc_debug_hooks *default_debug_hooks;
+
/* Other flags saying which kinds of debugging dump have been requested. */
int rtl_dump_and_exit;
or 0 if between functions. */
tree current_function_decl;
-/* Set to the FUNC_BEGIN label of the current function, or NULL_TREE
+/* Set to the FUNC_BEGIN label of the current function, or NULL
if none. */
-tree current_function_func_begin_label;
-
-/* Nonzero if doing dwarf2 duplicate elimination. */
-
-int flag_eliminate_dwarf2_dups = 0;
-
-/* Nonzero if doing unused type elimination. */
-
-int flag_eliminate_unused_debug_types = 1;
-
-/* Nonzero means emit debugging information only for symbols which are used. */
-int flag_debug_only_used_symbols = 0;
-
-/* Nonzero if generating code to do profiling. */
-
-int profile_flag = 0;
-
-/* Nonzero if generating code to profile program flow graph arcs. */
-
-int profile_arc_flag = 0;
-
-/* Nonzero if value histograms should be measured. */
-
-int flag_profile_values = 0;
-
-/* Nonzero if value histograms should be used to optimize code. */
-int flag_value_profile_transformations = 0;
-
-/* Nonzero if generating info for gcov to calculate line test coverage. */
-
-int flag_test_coverage = 0;
-
-/* Nonzero indicates that branch taken probabilities should be calculated. */
-
-int flag_branch_probabilities = 0;
-
-/* Nonzero if basic blocks should be reordered. */
-
-int flag_reorder_blocks = 0;
-
-/* Nonzero if functions should be reordered. */
-
-int flag_reorder_functions = 0;
-
-/* Nonzero if registers should be renamed. */
-
-int flag_rename_registers = 0;
-int flag_cprop_registers = 0;
-
-/* Nonzero for -pedantic switch: warn about anything
- that standard spec forbids. */
-
-int pedantic = 0;
+const char * current_function_func_begin_label;
/* Temporarily suppress certain warnings.
This is set while reading code from a system header file. */
int in_system_header = 0;
-/* Don't print functions as they are compiled. -quiet. */
-
-int quiet_flag = 0;
-
-/* Print times taken by the various passes. -ftime-report. */
-
-int time_report = 0;
-
-/* Print memory still in use at end of compilation (which may have little
- to do with peak memory consumption). -fmem-report. */
-
-int mem_report = 0;
-
/* Nonzero means to collect statistics which might be expensive
and to print them when we are done. */
int flag_detailed_statistics = 0;
int flag_signed_char;
-/* Nonzero means give an enum type only as many bytes as it needs. */
+/* Nonzero means give an enum type only as many bytes as it needs. A value
+ of 2 means it has not yet been initialized. */
int flag_short_enums;
-/* Nonzero for -fcaller-saves: allocate values in regs that need to
- be saved across function calls, if that produces overall better code.
- Optional now, so people can test it. */
-
-int flag_caller_saves = 0;
-
/* Nonzero if structures and unions should be returned in memory.
This should only be defined if compatibility with another compiler or
int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN;
-/* Nonzero for -fforce-mem: load memory value into a register
- before arithmetic on it. This makes better cse but slower compilation. */
-
-int flag_force_mem = 0;
-
-/* Nonzero for -fforce-addr: load memory address into a register before
- reference to memory. This makes better cse but slower compilation. */
-
-int flag_force_addr = 0;
-
-/* Nonzero for -fdefer-pop: don't pop args after each function call;
- instead save them up to pop many calls' args with one insns. */
-
-int flag_defer_pop = 0;
-
-/* Nonzero for -ffloat-store: don't allocate floats and doubles
- in extended-precision registers. */
-
-int flag_float_store = 0;
-
-/* Nonzero for -fcse-follow-jumps:
- have cse follow jumps to do a more extensive job. */
-
-int flag_cse_follow_jumps;
-
-/* Nonzero for -fcse-skip-blocks:
- have cse follow a branch around a block. */
-int flag_cse_skip_blocks;
-
-/* Nonzero for -fexpensive-optimizations:
- perform miscellaneous relatively-expensive optimizations. */
-int flag_expensive_optimizations;
-
-/* Nonzero for -fthread-jumps:
- have jump optimize output of loop. */
-
-int flag_thread_jumps;
-
-/* Nonzero enables strength-reduction in loop.c. */
-
-int flag_strength_reduce = 0;
-
-/* Nonzero enables loop unrolling in unroll.c. Only loops for which the
- number of iterations can be calculated at compile-time (UNROLL_COMPLETELY,
- UNROLL_MODULO) or at run-time (preconditioned to be UNROLL_MODULO) are
- unrolled. */
-
-int flag_old_unroll_loops;
-
-/* Nonzero enables loop unrolling in unroll.c. All loops are unrolled.
- This is generally not a win. */
-
-int flag_old_unroll_all_loops;
-
-/* Enables unrolling of simple loops in loop-unroll.c. */
-int flag_unroll_loops;
-
-/* Enables unrolling of all loops in loop-unroll.c. */
-int flag_unroll_all_loops;
-
-/* Nonzero enables loop peeling. */
-int flag_peel_loops;
-
-/* Nonzero enables loop unswitching. */
-int flag_unswitch_loops;
-
-/* Nonzero enables prefetch optimizations for arrays in loops. */
-
-int flag_prefetch_loop_arrays;
-
-/* Nonzero forces all invariant computations in loops to be moved
- outside the loop. */
-
-int flag_move_all_movables = 0;
-
-/* Nonzero forces all general induction variables in loops to be
- strength reduced. */
-
-int flag_reduce_all_givs = 0;
-
-/* Nonzero to perform full register move optimization passes. This is the
- default for -O2. */
-
-int flag_regmove = 0;
-
-/* Nonzero means don't put addresses of constant functions in registers.
- Used for compiling the Unix kernel, where strange substitutions are
- done on the assembly output. */
-
-int flag_no_function_cse = 0;
-
-/* Nonzero for -fomit-frame-pointer:
- don't make a frame pointer in simple functions that don't require one. */
-
-int flag_omit_frame_pointer = 0;
-
-/* Nonzero means place each function into its own section on those platforms
- which support arbitrary section names and unlimited numbers of sections. */
-
-int flag_function_sections = 0;
-
-/* ... and similar for data. */
-
-int flag_data_sections = 0;
-
-/* Nonzero to inhibit use of define_optimization peephole opts. */
-
-int flag_no_peephole = 0;
-
-/* Nonzero allows GCC to optimize sibling and tail recursive calls. */
-
-int flag_optimize_sibling_calls = 0;
-
-/* Nonzero means the front end generally wants `errno' maintained by math
- operations, like built-in SQRT. */
-
-int flag_errno_math = 1;
-
-/* Nonzero means that unsafe floating-point math optimizations are allowed
- for the sake of speed. IEEE compliance is not guaranteed, and operations
- are allowed to assume that their arguments and results are "normal"
- (e.g., nonnegative for SQRT). */
-
-int flag_unsafe_math_optimizations = 0;
-
-/* Nonzero means that no NaNs or +-Infs are expected. */
-
-int flag_finite_math_only = 0;
-
-/* Zero means that floating-point math operations cannot generate a
- (user-visible) trap. This is the case, for example, in nonstop
- IEEE 754 arithmetic. Trapping conditions include division by zero,
- overflow, underflow, invalid and inexact, but does not include
- operations on signaling NaNs (see below). */
-
-int flag_trapping_math = 1;
-
-/* Nonzero means disable transformations that assume default floating
- point rounding behavior. */
-
-int flag_rounding_math = 0;
-
-/* Nonzero means disable transformations observable by signaling NaNs.
- This option implies that any operation on an IEEE signaling NaN can
- generate a (user-visible) trap. */
-
-int flag_signaling_nans = 0;
-
/* 0 means straightforward implementation of complex divide acceptable.
1 means wide ranges of inputs must work for complex divide.
2 means C99-like requirements for complex divide (not yet implemented). */
int flag_complex_divide_method = 0;
-/* Nonzero means just do syntax checking; don't output anything. */
-
-int flag_syntax_only = 0;
-
-/* Nonzero means performs web construction pass. */
-
-int flag_web;
-
-/* Nonzero means perform loop optimizer. */
-
-int flag_loop_optimize;
-
-/* Nonzero means perform crossjumping. */
-
-int flag_crossjumping;
-
-/* Nonzero means perform if conversion. */
-
-int flag_if_conversion;
-
-/* Nonzero means perform if conversion after reload. */
-
-int flag_if_conversion2;
-
-/* Nonzero means to use global dataflow analysis to eliminate
- useless null pointer tests. */
-
-int flag_delete_null_pointer_checks;
-
-/* Nonzero means perform global CSE. */
-
-int flag_gcse = 0;
-
-/* Nonzero means to do the enhanced load motion during gcse, which trys
- to hoist loads by not killing them when a store to the same location
- is seen. */
-
-int flag_gcse_lm = 1;
-
-/* Nonzero means to perform store motion after gcse, which will try to
- move stores closer to the exit block. Its not very effective without
- flag_gcse_lm. */
-
-int flag_gcse_sm = 1;
-
-/* Nonzero if we want to perform redundant load after store elimination
- in gcse. */
-
-int flag_gcse_las = 1;
-
-/* Nonzero means perform global cse after register allocation. */
-int flag_gcse_after_reload = 0;
-
-/* Perform target register optimization before prologue / epilogue
- threading. */
-
-int flag_branch_target_load_optimize = 0;
-
-/* Perform target register optimization after prologue / epilogue
- threading and jump2. */
-
-int flag_branch_target_load_optimize2 = 0;
-
-/* For the bt-load pass, nonzero means don't re-use branch target registers
- in any basic block. */
-
-int flag_btr_bb_exclusive;
-
-/* Nonzero means to rerun cse after loop optimization. This increases
- compilation time about 20% and picks up a few more common expressions. */
-
-int flag_rerun_cse_after_loop;
-
-/* Nonzero means to run loop optimizations twice. */
-
-int flag_rerun_loop_opt;
-
-/* Nonzero for -finline-functions: ok to inline functions that look like
- good inline candidates. */
-
-int flag_inline_functions;
-
-/* Nonzero for -fkeep-inline-functions: even if we make a function
- go inline everywhere, keep its definition around for debugging
- purposes. */
-
-int flag_keep_inline_functions;
-
-/* Nonzero means that functions will not be inlined. */
-
-int flag_no_inline = 2;
-
/* Nonzero means that we don't want inlining by virtue of -fno-inline,
not just because the tree inliner turned us off. */
int flag_really_no_inline = 2;
-/* Nonzero means that we should emit static const variables
- regardless of whether or not optimization is turned on. */
-
-int flag_keep_static_consts = 1;
-
/* Nonzero means we should be saving declaration info into a .X file. */
int flag_gen_aux_info = 0;
const char *aux_info_file_name;
-/* Nonzero means make the text shared if supported. */
-
-int flag_shared_data;
-
-/* Nonzero means schedule into delayed branch slots if supported. */
-
-int flag_delayed_branch;
-
-/* Nonzero if we are compiling pure (sharable) code.
- Value is 1 if we are doing "small" pic; value is 2 if we're doing
- "large" pic. */
-
-int flag_pic;
-
-/* Nonzero if we are compiling position independent code for executable.
- The value is 1 if we are doing "small" pic; value is 2 if we're doing
- "large" pic. */
-
-int flag_pie;
-
/* Nonzero if we are compiling code for a shared library, zero for
executable. */
enum tls_model flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC;
-/* Nonzero means generate extra code for exception handling and enable
- exception handling. */
-
-int flag_exceptions;
-
-/* Nonzero means generate frame unwind info table when supported. */
-
-int flag_unwind_tables = 0;
-
-/* Nonzero means generate frame unwind info table exact at each insn
- boundary. */
-
-int flag_asynchronous_unwind_tables = 0;
-
-/* Nonzero means don't place uninitialized global data in common storage
- by default. */
-
-int flag_no_common;
-
/* Nonzero means change certain warnings into errors.
Usually these are warnings about failure to conform to some standard. */
int flag_pedantic_errors = 0;
-/* flag_schedule_insns means schedule insns within basic blocks (before
- local_alloc).
- flag_schedule_insns_after_reload means schedule insns after
- global_alloc. */
-
-int flag_schedule_insns = 0;
-int flag_schedule_insns_after_reload = 0;
-
-/* When flag_schedule_insns_after_reload is set, use EBB scheduler. */
-int flag_sched2_use_superblocks = 0;
-
-/* When flag_schedule_insns_after_reload is set, construct traces and EBB
- scheduler. */
-int flag_sched2_use_traces = 0;
-
-/* The following flags have effect only for scheduling before register
- allocation:
-
- flag_schedule_interblock means schedule insns across basic blocks.
- flag_schedule_speculative means allow speculative motion of non-load insns.
- flag_schedule_speculative_load means allow speculative motion of some
- load insns.
- flag_schedule_speculative_load_dangerous allows speculative motion of more
- load insns. */
-
-int flag_schedule_interblock = 1;
-int flag_schedule_speculative = 1;
-int flag_schedule_speculative_load = 0;
-int flag_schedule_speculative_load_dangerous = 0;
-
-/* The following flags have an effect during scheduling after register
- allocation:
-
- flag_sched_stalled_insns means that insns can be moved prematurely from the queue
- of stalled insns into the ready list.
-
- flag_sched_stalled_insns_dep controls how many insn groups will be examined
- for a dependency on a stalled insn that is candidate for premature removal
- from the queue of stalled insns into the ready list (has an effect only if
- the flag 'sched_stalled_insns' is set). */
-
-int flag_sched_stalled_insns = 0;
-int flag_sched_stalled_insns_dep = 1;
-
-int flag_single_precision_constant;
-
-/* flag_branch_on_count_reg means try to replace add-1,compare,branch tupple
- by a cheaper branch on a count register. */
-int flag_branch_on_count_reg = 1;
-
-/* -finhibit-size-directive inhibits output of .size for ELF.
- This is used only for compiling crtstuff.c,
- and it may be extended to other effects
- needed for crtstuff.c on other systems. */
-int flag_inhibit_size_directive = 0;
-
-/* -fverbose-asm causes extra commentary information to be produced in
- the generated assembly code (to make it more readable). This option
- is generally only of use to those who actually need to read the
- generated assembly code (perhaps while debugging the compiler itself).
- -fno-verbose-asm, the default, causes the extra information
- to be omitted and is useful when comparing two assembler files. */
-
-int flag_verbose_asm = 0;
-
/* -dA causes debug commentary information to be produced in
the generated assembly code (to make it more readable). This option
is generally only of use to those who actually need to read the
int flag_dump_rtl_in_asm = 0;
-/* Nonzero means put zero initialized data in the bss section. */
-int flag_zero_initialized_in_bss = 1;
-
-/* Tag all structures with __attribute__(packed). */
-int flag_pack_struct = 0;
-
-/* Emit code to check for stack overflow; also may cause large objects
- to be allocated dynamically. */
-int flag_stack_check;
-
/* When non-NULL, indicates that whenever space is allocated on the
stack, the resulting stack pointer must not pass this
address---that is, for stacks that grow downward, the stack pointer
the support provided depends on the backend. */
rtx stack_limit_rtx;
-/* 0 if pointer arguments may alias each other. True in C.
- 1 if pointer arguments may not alias each other but may alias
- global variables.
- 2 if pointer arguments may not alias each other and may not
- alias global variables. True in Fortran.
- This defaults to 0 for C. */
-int flag_argument_noalias = 0;
-
-/* Nonzero if we should do (language-dependent) alias analysis.
- Typically, this analysis will assume that expressions of certain
- types do not alias expressions of certain other types. Only used
- if alias analysis (in general) is enabled. */
-int flag_strict_aliasing = 0;
-
-/* Instrument functions with calls at entry and exit, for profiling. */
-int flag_instrument_function_entry_exit = 0;
-
-/* Nonzero means ignore `#ident' directives. 0 means handle them.
- On SVR4 targets, it also controls whether or not to emit a
- string identifying the compiler. */
-
-int flag_no_ident = 0;
-
-/* This will perform a peephole pass before sched2. */
-int flag_peephole2 = 0;
-
-/* This will try to guess branch probabilities. */
-int flag_guess_branch_prob = 0;
-
-/* -fcheck-bounds causes gcc to generate array bounds checks.
- For C, C++, ObjC: defaults to off.
- For Java: defaults to on.
- For Fortran: defaults to off. */
-int flag_bounds_check = 0;
-
-/* This will attempt to merge constant section constants, if 1 only
- string constants and constants from constant pool, if 2 also constant
- variables. */
-int flag_merge_constants = 1;
-
/* If one, renumber instruction UIDs to reduce the number of
unused UIDs if there are a lot of instructions. If greater than
one, unconditionally renumber instruction UIDs. */
int flag_renumber_insns = 1;
-/* If nonzero, use the graph coloring register allocator. */
-int flag_new_regalloc = 0;
-
-/* Nonzero if we perform superblock formation. */
-
-int flag_tracer = 0;
-
-/* Nonzero if we perform whole unit at a time compilation. */
-
-int flag_unit_at_a_time = 0;
-
/* Nonzero if we should track variables. When
flag_var_tracking == AUTODETECT_FLAG_VAR_TRACKING it will be set according
to optimize, debug_info_level and debug_hooks in process_options (). */
-
-#define AUTODETECT_FLAG_VAR_TRACKING 2
int flag_var_tracking = AUTODETECT_FLAG_VAR_TRACKING;
+/* True if the user has tagged the function with the 'section'
+ attribute. */
+
+bool user_defined_section_attribute = false;
+
/* Values of the -falign-* flags: how much to align labels in code.
0 means `use default', 1 means `don't align'.
For each variable, there is an _log variant which is the power
of two not less than the variable, for .align output. */
-int align_loops;
int align_loops_log;
int align_loops_max_skip;
-int align_jumps;
int align_jumps_log;
int align_jumps_max_skip;
-int align_labels;
int align_labels_log;
int align_labels_max_skip;
-int align_functions;
int align_functions_log;
/* Like align_functions_log above, but used by front-ends to force the
}
lang_independent_options;
-/* Nonzero if signed arithmetic overflow should trap. */
-int flag_trapv = 0;
-
-/* Nonzero if signed arithmetic overflow should wrap around. */
-int flag_wrapv = 0;
-
/* Nonzero if subexpressions must be evaluated from left-to-right. */
int flag_evaluation_order = 0;
-/* Add or remove a leading underscore from user symbols. */
-int flag_leading_underscore = -1;
-
-/* The version of the C++ ABI in use. The following values are
- allowed:
-
- 0: The version of the ABI believed most conformant with the
- C++ ABI specification. This ABI may change as bugs are
- discovered and fixed. Therefore, 0 will not necessarily
- indicate the same ABI in different versions of G++.
-
- 1: The version of the ABI first used in G++ 3.2.
-
- 2: The version of the ABI first used in G++ 3.4.
-
- Additional positive integers will be assigned as new versions of
- the ABI become the default version of the ABI. */
-
-int flag_abi_version = 2;
-
/* The user symbol prefix after having resolved same. */
const char *user_label_prefix;
{ NULL, 0, NULL }
};
-/* Table of language-independent -f options.
- STRING is the option name. VARIABLE is the address of the variable.
- ON_VALUE is the value to store in VARIABLE
- if `-fSTRING' is seen as an option.
- (If `-fno-STRING' is seen as an option, the opposite value is stored.) */
-
-static const lang_independent_options f_options[] =
-{
- {"eliminate-dwarf2-dups", &flag_eliminate_dwarf2_dups, 1 },
- {"eliminate-unused-debug-symbols", &flag_debug_only_used_symbols, 1 },
- {"eliminate-unused-debug-types", &flag_eliminate_unused_debug_types, 1 },
- {"float-store", &flag_float_store, 1 },
- {"defer-pop", &flag_defer_pop, 1 },
- {"omit-frame-pointer", &flag_omit_frame_pointer, 1 },
- {"optimize-sibling-calls", &flag_optimize_sibling_calls, 1 },
- {"tracer", &flag_tracer, 1 },
- {"unit-at-a-time", &flag_unit_at_a_time, 1 },
- {"cse-follow-jumps", &flag_cse_follow_jumps, 1 },
- {"cse-skip-blocks", &flag_cse_skip_blocks, 1 },
- {"expensive-optimizations", &flag_expensive_optimizations, 1 },
- {"thread-jumps", &flag_thread_jumps, 1 },
- {"strength-reduce", &flag_strength_reduce, 1 },
- {"unroll-loops", &flag_unroll_loops, 1 },
- {"unroll-all-loops", &flag_unroll_all_loops, 1 },
- {"old-unroll-loops", &flag_old_unroll_loops, 1 },
- {"old-unroll-all-loops", &flag_old_unroll_all_loops, 1 },
- {"peel-loops", &flag_peel_loops, 1 },
- {"unswitch-loops", &flag_unswitch_loops, 1 },
- {"prefetch-loop-arrays", &flag_prefetch_loop_arrays, 1 },
- {"move-all-movables", &flag_move_all_movables, 1 },
- {"reduce-all-givs", &flag_reduce_all_givs, 1 },
- {"peephole", &flag_no_peephole, 0 },
- {"force-mem", &flag_force_mem, 1 },
- {"force-addr", &flag_force_addr, 1 },
- {"function-cse", &flag_no_function_cse, 0 },
- {"inline-functions", &flag_inline_functions, 1 },
- {"keep-inline-functions", &flag_keep_inline_functions, 1 },
- {"inline", &flag_no_inline, 0 },
- {"keep-static-consts", &flag_keep_static_consts, 1 },
- {"syntax-only", &flag_syntax_only, 1 },
- {"shared-data", &flag_shared_data, 1 },
- {"caller-saves", &flag_caller_saves, 1 },
- {"pcc-struct-return", &flag_pcc_struct_return, 1 },
- {"reg-struct-return", &flag_pcc_struct_return, 0 },
- {"delayed-branch", &flag_delayed_branch, 1 },
- {"web", &flag_web, 1},
- {"gcse", &flag_gcse, 1 },
- {"gcse-lm", &flag_gcse_lm, 1 },
- {"gcse-sm", &flag_gcse_sm, 1 },
- {"gcse-las", &flag_gcse_las, 1 },
- {"gcse-after-reload", &flag_gcse_after_reload, 1},
- {"branch-target-load-optimize", &flag_branch_target_load_optimize, 1 },
- {"branch-target-load-optimize2", &flag_branch_target_load_optimize2, 1 },
- {"btr-bb-exclusive", &flag_btr_bb_exclusive, 1 },
- {"loop-optimize", &flag_loop_optimize, 1 },
- {"crossjumping", &flag_crossjumping, 1 },
- {"if-conversion", &flag_if_conversion, 1 },
- {"if-conversion2", &flag_if_conversion2, 1 },
- {"rerun-cse-after-loop", &flag_rerun_cse_after_loop, 1 },
- {"rerun-loop-opt", &flag_rerun_loop_opt, 1 },
- {"delete-null-pointer-checks", &flag_delete_null_pointer_checks, 1 },
- {"schedule-insns", &flag_schedule_insns, 1 },
- {"schedule-insns2", &flag_schedule_insns_after_reload, 1 },
- {"sched-interblock",&flag_schedule_interblock, 1 },
- {"sched-spec",&flag_schedule_speculative, 1 },
- {"sched-spec-load",&flag_schedule_speculative_load, 1 },
- {"sched-spec-load-dangerous",&flag_schedule_speculative_load_dangerous, 1 },
- {"sched-stalled-insns", &flag_sched_stalled_insns, 0 },
- {"sched-stalled-insns-dep", &flag_sched_stalled_insns_dep, 1 },
- {"sched2-use-superblocks", &flag_sched2_use_superblocks, 1 },
- {"sched2-use-traces", &flag_sched2_use_traces, 1 },
- {"branch-count-reg",&flag_branch_on_count_reg, 1 },
- {"pic", &flag_pic, 1 },
- {"PIC", &flag_pic, 2 },
- {"pie", &flag_pie, 1 },
- {"PIE", &flag_pie, 2 },
- {"exceptions", &flag_exceptions, 1 },
- {"unwind-tables", &flag_unwind_tables, 1 },
- {"asynchronous-unwind-tables", &flag_asynchronous_unwind_tables, 1 },
- {"non-call-exceptions", &flag_non_call_exceptions, 1 },
- {"profile-arcs", &profile_arc_flag, 1 },
- {"profile-values", &flag_profile_values, 1 },
- {"vpt", &flag_value_profile_transformations, 1 },
- {"test-coverage", &flag_test_coverage, 1 },
- {"branch-probabilities", &flag_branch_probabilities, 1 },
- {"profile", &profile_flag, 1 },
- {"reorder-blocks", &flag_reorder_blocks, 1 },
- {"reorder-functions", &flag_reorder_functions, 1 },
- {"rename-registers", &flag_rename_registers, 1 },
- {"cprop-registers", &flag_cprop_registers, 1 },
- {"common", &flag_no_common, 0 },
- {"inhibit-size-directive", &flag_inhibit_size_directive, 1 },
- {"function-sections", &flag_function_sections, 1 },
- {"data-sections", &flag_data_sections, 1 },
- {"verbose-asm", &flag_verbose_asm, 1 },
- {"regmove", &flag_regmove, 1 },
- {"optimize-register-move", &flag_regmove, 1 },
- {"pack-struct", &flag_pack_struct, 1 },
- {"stack-check", &flag_stack_check, 1 },
- {"argument-alias", &flag_argument_noalias, 0 },
- {"argument-noalias", &flag_argument_noalias, 1 },
- {"argument-noalias-global", &flag_argument_noalias, 2 },
- {"strict-aliasing", &flag_strict_aliasing, 1 },
- {"align-loops", &align_loops, 0 },
- {"align-jumps", &align_jumps, 0 },
- {"align-labels", &align_labels, 0 },
- {"align-functions", &align_functions, 0 },
- {"merge-constants", &flag_merge_constants, 1 },
- {"merge-all-constants", &flag_merge_constants, 2 },
- {"dump-unnumbered", &flag_dump_unnumbered, 1 },
- {"instrument-functions", &flag_instrument_function_entry_exit, 1 },
- {"zero-initialized-in-bss", &flag_zero_initialized_in_bss, 1 },
- {"leading-underscore", &flag_leading_underscore, 1 },
- {"ident", &flag_no_ident, 0 },
- { "peephole2", &flag_peephole2, 1 },
- {"finite-math-only", &flag_finite_math_only, 1 },
- { "guess-branch-probability", &flag_guess_branch_prob, 1 },
- {"math-errno", &flag_errno_math, 1 },
- {"trapping-math", &flag_trapping_math, 1 },
- {"rounding-math", &flag_rounding_math, 1 },
- {"unsafe-math-optimizations", &flag_unsafe_math_optimizations, 1 },
- {"signaling-nans", &flag_signaling_nans, 1 },
- {"bounds-check", &flag_bounds_check, 1 },
- {"single-precision-constant", &flag_single_precision_constant, 1 },
- {"time-report", &time_report, 1 },
- {"mem-report", &mem_report, 1 },
- { "trapv", &flag_trapv, 1 },
- { "wrapv", &flag_wrapv, 1 },
- { "new-ra", &flag_new_regalloc, 1 },
- { "var-tracking", &flag_var_tracking, 1}
-};
-
/* Here is a table, controlled by the tm.h file, listing each -m switch
and which bits in `target_switches' it should set or clear.
If VALUE is positive, it is bits to set.
FILE *asm_out_file;
FILE *aux_info_file;
FILE *dump_file = NULL;
-FILE *cgraph_dump_file = NULL;
+char *dump_file_name;
/* The current working directory of a translation. It's generally the
directory from which compilation was initiated, but a preprocessed
set_src_pwd (const char *pwd)
{
if (src_pwd)
- return false;
+ {
+ if (strcmp (src_pwd, pwd) == 0)
+ return true;
+ else
+ return false;
+ }
src_pwd = xstrdup (pwd);
return true;
if (*endp != 0)
{
if (pname != 0)
- error ("invalid option argument `%s'", pname);
+ error ("invalid option argument %qs", pname);
return defval;
}
return atoi (p);
}
-/* Return the logarithm of X, base 2, considering X unsigned,
- if X is a power of 2. Otherwise, returns -1.
+/* Given X, an unsigned number, return the largest int Y such that 2**Y <= X.
+ If X is 0, return -1.
- This should be used via the `exact_log2' macro. */
+ This should be used via the floor_log2 macro. */
int
-exact_log2_wide (unsigned HOST_WIDE_INT x)
+floor_log2_wide (unsigned HOST_WIDE_INT x)
{
- int log = 0;
- /* Test for 0 or a power of 2. */
- if (x == 0 || x != (x & -x))
+ int t=0;
+ if (x == 0)
return -1;
- while ((x >>= 1) != 0)
- log++;
- return log;
+ if (sizeof (HOST_WIDE_INT) * 8 > 64)
+ if (x >= (unsigned HOST_WIDE_INT) 1 << (t + 64))
+ t += 64;
+ if (sizeof (HOST_WIDE_INT) * 8 > 32)
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 32))
+ t += 32;
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 16))
+ t += 16;
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 8))
+ t += 8;
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 4))
+ t += 4;
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 2))
+ t += 2;
+ if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 1))
+ t += 1;
+ return t;
}
-/* Given X, an unsigned number, return the largest int Y such that 2**Y <= X.
- If X is 0, return -1.
+/* Return the logarithm of X, base 2, considering X unsigned,
+ if X is a power of 2. Otherwise, returns -1.
- This should be used via the floor_log2 macro. */
+ This should be used via the `exact_log2' macro. */
int
-floor_log2_wide (unsigned HOST_WIDE_INT x)
+exact_log2_wide (unsigned HOST_WIDE_INT x)
{
- int log = -1;
- while (x != 0)
- log++,
- x >>= 1;
- return log;
+ /* Test for 0 or a power of 2. */
+ if (x == 0 || x != (x & -x))
+ return -1;
+ return floor_log2_wide (x);
}
/* Handler for fatal signals, such as SIGSEGV. These are transformed
crash_signal (int signo)
{
signal (signo, SIG_DFL);
+
+ /* If we crashed while processing an ASM statement, then be a little more
+ graceful. It's most likely the user's fault. */
+ if (this_is_asm_operands)
+ {
+ output_operand_lossage ("unrecoverable error");
+ exit (FATAL_EXIT_CODE);
+ }
+
internal_error ("%s", strsignal (signo));
}
if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl))
{
+ struct cgraph_varpool_node *node;
bool needed = 1;
+ node = cgraph_varpool_node (decl);
- if (flag_unit_at_a_time
- && cgraph_varpool_node (decl)->finalized)
+ if (flag_unit_at_a_time && node->finalized)
needed = 0;
else if ((flag_unit_at_a_time && !cgraph_global_info_ready)
&& (TREE_USED (decl)
|| TREE_USED (DECL_ASSEMBLER_NAME (decl))))
/* needed */;
- else if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
+ else if (node->needed)
/* needed */;
else if (DECL_COMDAT (decl))
needed = 0;
if (needed)
{
reconsider = 1;
- rest_of_decl_compilation (decl, NULL, 1, 1);
+ rest_of_decl_compilation (decl, 1, 1);
}
}
-
- if (TREE_CODE (decl) == FUNCTION_DECL
- && DECL_INITIAL (decl) != 0
- && DECL_STRUCT_FUNCTION (decl) != 0
- && DECL_STRUCT_FUNCTION (decl)->saved_for_inline
- && (flag_keep_inline_functions
- || (TREE_PUBLIC (decl) && !DECL_COMDAT (decl))
- || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
- {
- reconsider = 1;
- output_inline_function (decl);
- }
}
if (reconsider)
because many programs have static variables
that exist only to get some text into the object file. */
if (TREE_CODE (decl) == FUNCTION_DECL
- && (warn_unused_function
- || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
&& DECL_INITIAL (decl) == 0
&& DECL_EXTERNAL (decl)
&& ! DECL_ARTIFICIAL (decl)
- && ! TREE_PUBLIC (decl))
+ && ! TREE_NO_WARNING (decl)
+ && ! TREE_PUBLIC (decl)
+ && (warn_unused_function
+ || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
{
if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
- pedwarn ("%J'%F' used but never defined", decl, decl);
+ pedwarn ("%J%qF used but never defined", decl, decl);
else
- warning ("%J'%F' declared `static' but never defined", decl, decl);
+ warning ("%J%qF declared %<static%> but never defined",
+ decl, decl);
/* This symbol is effectively an "extern" declaration now. */
TREE_PUBLIC (decl) = 1;
assemble_external (decl);
&& ! (TREE_CODE (decl) == VAR_DECL && DECL_REGISTER (decl))
/* Otherwise, ask the language. */
&& lang_hooks.decls.warn_unused_global (decl))
- warning ("%J'%D' defined but not used", decl, decl);
+ warning ("%J%qD defined but not used", decl, decl);
/* Avoid confusing the debug information machinery when there are
errors. */
return;
if (DECL_P (node))
- warning ("`%s' is deprecated (declared at %s:%d)",
- IDENTIFIER_POINTER (DECL_NAME (node)),
- DECL_SOURCE_FILE (node), DECL_SOURCE_LINE (node));
+ {
+ expanded_location xloc = expand_location (DECL_SOURCE_LOCATION (node));
+ warning ("%qs is deprecated (declared at %s:%d)",
+ IDENTIFIER_POINTER (DECL_NAME (node)),
+ xloc.file, xloc.line);
+ }
else if (TYPE_P (node))
{
const char *what = NULL;
tree decl = TYPE_STUB_DECL (node);
- if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
- what = IDENTIFIER_POINTER (TYPE_NAME (node));
- else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
- && DECL_NAME (TYPE_NAME (node)))
- what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node)));
+ if (TYPE_NAME (node))
+ {
+ if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
+ what = IDENTIFIER_POINTER (TYPE_NAME (node));
+ else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
+ && DECL_NAME (TYPE_NAME (node)))
+ what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node)));
+ }
- if (what)
+ if (decl)
{
- if (decl)
- warning ("`%s' is deprecated (declared at %s:%d)", what,
- DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (decl));
+ if (what)
+ warning ("%qs is deprecated (declared at %s:%d)", what,
+ xloc.file, xloc.line);
else
- warning ("`%s' is deprecated", what);
+ warning ("type is deprecated (declared at %s:%d)",
+ xloc.file, xloc.line);
}
- else if (decl)
- warning ("type is deprecated (declared at %s:%d)",
- DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
else
- warning ("type is deprecated");
+ {
+ if (what)
+ warning ("%qs is deprecated", what);
+ else
+ warning ("type is deprecated");
+ }
}
}
INPUT_LOCATION accordingly. */
void
+#ifdef USE_MAPPED_LOCATION
+push_srcloc (location_t fline)
+#else
push_srcloc (const char *file, int line)
+#endif
{
struct file_stack *fs;
fs = xmalloc (sizeof (struct file_stack));
fs->location = input_location;
fs->next = input_file_stack;
+#ifdef USE_MAPPED_LOCATION
+ input_location = fline;
+#else
input_filename = file;
input_line = line;
+#endif
input_file_stack = fs;
input_file_stack_tick++;
}
{
/* Initialize yet another pass. */
+ init_cgraph ();
init_final (main_input_filename);
coverage_init (aux_base_name);
functions in this compilation unit were deferred. */
coverage_finish ();
+ /* Likewise for mudflap static object registrations. */
+ if (flag_mudflap)
+ mudflap_finish_file ();
+
/* Write out any pending weak symbol declarations. */
weak_finish ();
dw2_output_indirect_constants ();
- targetm.asm_out.file_end ();
-
/* Attach a special .ident directive to the end of the file to identify
the version of GCC which compiled this code. The format of the .ident
string is patterned after the ones produced by native SVR4 compilers. */
fprintf (asm_out_file, "%s\"GCC: (GNU) %s\"\n",
IDENT_ASM_OP, version_string);
#endif
+
+ /* This must be at the end. Some target ports emit end of file directives
+ into the assembly file here, and hence we can not output anything to the
+ assembly file after this point. */
+ targetm.asm_out.file_end ();
}
/* Display help for target options. */
#endif
if (!valid_target_option)
- error ("invalid option `%s'", name);
+ error ("invalid option %qs", name);
}
/* Print version information to FILE.
pos = print_single_switch (file, 0, max, indent, *indent ? " " : "", term,
_("options enabled: "), "");
- for (j = 0; j < ARRAY_SIZE (f_options); j++)
- if (*f_options[j].variable == f_options[j].on_value)
+ for (j = 0; j < cl_options_count; j++)
+ {
+ if (!cl_options[j].flag_var
+ || !(cl_options[j].flags & CL_REPORT))
+ continue;
+
+ if (cl_options[j].has_set_value)
+ {
+ if (*cl_options[j].flag_var != cl_options[j].set_value)
+ continue;
+ }
+ else
+ {
+ if (!*cl_options[j].flag_var)
+ continue;
+ }
+
pos = print_single_switch (file, pos, max, indent, sep, term,
- "-f", f_options[j].string);
+ "", cl_options[j].opt_text);
+ }
/* Print target specific options. */
if (!strcmp (asm_file_name, "-"))
asm_out_file = stdout;
else
- asm_out_file = fopen (asm_file_name, "w+");
+ asm_out_file = fopen (asm_file_name, "w+b");
if (asm_out_file == 0)
- fatal_error ("can't open %s for writing: %m", asm_file_name);
+ fatal_error ("can%'t open %s for writing: %m", asm_file_name);
}
#ifdef IO_BUFFER_SIZE
goto make_message;
}
}
- abort ();
+ gcc_unreachable ();
}
data += sizeof (target_flags);
len -= sizeof (target_flags);
make_message:
{
char *r;
- asprintf (&r, _("created and used with differing settings of `-m%s'"),
+ asprintf (&r, _("created and used with differing settings of '-m%s'"),
flag_that_differs);
if (r == NULL)
return _("out of memory");
/* This must be done after add_params but before argument processing. */
init_ggc_heuristics();
+ init_tree_optimization_passes ();
}
/* Process the options that have been parsed. */
sets the original filename if appropriate (e.g. foo.i -> foo.c)
so we can correctly initialize debug output. */
no_backend = lang_hooks.post_options (&main_input_filename);
+#ifndef USE_MAPPED_LOCATION
input_filename = main_input_filename;
+#endif
#ifdef OVERRIDE_OPTIONS
/* Some machines may reject certain combinations of options. */
OVERRIDE_OPTIONS;
#endif
+ if (flag_short_enums == 2)
+ flag_short_enums = targetm.default_short_enums ();
+
/* Set aux_base_name if not already set. */
if (aux_base_name)
;
if (flag_unroll_all_loops)
flag_unroll_loops = 1;
- if (flag_unroll_loops)
- {
- flag_old_unroll_loops = 0;
- flag_old_unroll_all_loops = 0;
- }
-
- if (flag_old_unroll_all_loops)
- flag_old_unroll_loops = 1;
-
- /* Old loop unrolling requires that strength_reduction be on also. Silently
- turn on strength reduction here if it isn't already on. Also, the loop
- unrolling code assumes that cse will be run after loop, so that must
- be turned on also. */
- if (flag_old_unroll_loops)
- {
- flag_strength_reduce = 1;
- flag_rerun_cse_after_loop = 1;
- }
+ /* The loop unrolling code assumes that cse will be run after loop. */
if (flag_unroll_loops || flag_peel_loops)
flag_rerun_cse_after_loop = 1;
+ /* If explicitly asked to run new loop optimizer, switch off the old
+ one. */
+ if (flag_loop_optimize2)
+ flag_loop_optimize = 0;
+
+ /* Enable new loop optimizer pass if any of its optimizations is called. */
+ if (flag_move_loop_invariants
+ || flag_unswitch_loops
+ || flag_peel_loops
+ || flag_unroll_loops
+ || flag_branch_on_count_reg)
+ flag_loop_optimize2 = 1;
+
if (flag_non_call_exceptions)
flag_asynchronous_unwind_tables = 1;
if (flag_asynchronous_unwind_tables)
if (flag_value_profile_transformations)
flag_profile_values = 1;
+ /* Speculative prefetching implies the value profiling. We also switch off
+ the prefetching in the loop optimizer, so that we do not emit double
+ prefetches. TODO -- we should teach these two to cooperate; the loop
+ based prefetching may sometimes do a better job, especially in connection
+ with reuse analysis. */
+ if (flag_speculative_prefetching)
+ {
+ flag_profile_values = 1;
+ flag_prefetch_loop_arrays = 0;
+ }
+
/* Warn about options that are not supported on this machine. */
#ifndef INSN_SCHEDULING
if (flag_schedule_insns || flag_schedule_insns_after_reload)
warning ("this target machine does not have delayed branches");
#endif
+ if (flag_tree_based_profiling && flag_profile_values)
+ sorry ("value-based profiling not yet implemented in trees.");
+
user_label_prefix = USER_LABEL_PREFIX;
if (flag_leading_underscore != -1)
{
/* Now we know write_symbols, set up the debug hooks based on it.
By default we do nothing for debug output. */
+ if (PREFERRED_DEBUGGING_TYPE == NO_DEBUG)
+ default_debug_hooks = &do_nothing_debug_hooks;
+#if defined(DBX_DEBUGGING_INFO)
+ else if (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG)
+ default_debug_hooks = &dbx_debug_hooks;
+#endif
+#if defined(XCOFF_DEBUGGING_INFO)
+ else if (PREFERRED_DEBUGGING_TYPE == XCOFF_DEBUG)
+ default_debug_hooks = &xcoff_debug_hooks;
+#endif
+#ifdef SDB_DEBUGGING_INFO
+ else if (PREFERRED_DEBUGGING_TYPE == SDB_DEBUG)
+ default_debug_hooks = &sdb_debug_hooks;
+#endif
+#ifdef DWARF2_DEBUGGING_INFO
+ else if (PREFERRED_DEBUGGING_TYPE == DWARF2_DEBUG)
+ default_debug_hooks = &dwarf2_debug_hooks;
+#endif
+#ifdef VMS_DEBUGGING_INFO
+ else if (PREFERRED_DEBUGGING_TYPE == VMS_DEBUG
+ || PREFERRED_DEBUGGING_TYPE == VMS_AND_DWARF2_DEBUG)
+ default_debug_hooks = &vmsdbg_debug_hooks;
+#endif
+
+ debug_hooks = &do_nothing_debug_hooks;
if (write_symbols == NO_DEBUG)
- debug_hooks = &do_nothing_debug_hooks;
+ ;
#if defined(DBX_DEBUGGING_INFO)
else if (write_symbols == DBX_DEBUG)
debug_hooks = &dbx_debug_hooks;
debug_type_names[write_symbols]);
/* Now we know which debug output will be used so we can set
- flag_var_tracking if user has not specified it. */
- if (flag_var_tracking == AUTODETECT_FLAG_VAR_TRACKING)
+ flag_var_tracking, flag_rename_registers if the user has
+ not specified them. */
+ if (debug_info_level < DINFO_LEVEL_NORMAL
+ || debug_hooks->var_location == do_nothing_debug_hooks.var_location)
{
- /* User has not specified -f(no-)var-tracking so autodetect it. */
- flag_var_tracking
- = (optimize >= 1 && debug_info_level >= DINFO_LEVEL_NORMAL
- && debug_hooks->var_location != do_nothing_debug_hooks.var_location);
+ if (flag_var_tracking == 1)
+ {
+ if (debug_info_level < DINFO_LEVEL_NORMAL)
+ warning ("variable tracking requested, but useless unless "
+ "producing debug info");
+ else
+ warning ("variable tracking requested, but not supported "
+ "by this debug format");
+ }
+ flag_var_tracking = 0;
}
+ if (flag_rename_registers == AUTODETECT_FLAG_VAR_TRACKING)
+ flag_rename_registers = default_debug_hooks->var_location
+ != do_nothing_debug_hooks.var_location;
+
+ if (flag_var_tracking == AUTODETECT_FLAG_VAR_TRACKING)
+ flag_var_tracking = optimize >= 1;
+
/* If auxiliary info generation is desired, open the output file.
This goes in the same directory as the source file--unlike
all the other output files. */
{
aux_info_file = fopen (aux_info_file_name, "w");
if (aux_info_file == 0)
- fatal_error ("can't open %s: %m", aux_info_file_name);
+ fatal_error ("can%'t open %s: %m", aux_info_file_name);
}
if (! targetm.have_named_sections)
warning ("-fprefetch-loop-arrays not supported for this target");
flag_prefetch_loop_arrays = 0;
}
+ if (flag_speculative_prefetching)
+ {
+ if (flag_speculative_prefetching_set)
+ warning ("-fspeculative-prefetching not supported for this target");
+ flag_speculative_prefetching = 0;
+ }
#else
if (flag_prefetch_loop_arrays && !HAVE_prefetch)
{
warning ("-fprefetch-loop-arrays not supported for this target (try -march switches)");
flag_prefetch_loop_arrays = 0;
}
+ if (flag_speculative_prefetching && !HAVE_prefetch)
+ {
+ if (flag_speculative_prefetching_set)
+ warning ("-fspeculative-prefetching not supported for this target (try -march switches)");
+ flag_speculative_prefetching = 0;
+ }
#endif
/* This combination of options isn't handled for i386 targets and doesn't
warning ("-ffunction-sections may affect debugging on some targets");
#endif
- /* The presence of IEEE signaling NaNs, implies all math can trap. */
- if (flag_signaling_nans)
- flag_trapping_math = 1;
+ /* The presence of IEEE signaling NaNs, implies all math can trap. */
+ if (flag_signaling_nans)
+ flag_trapping_math = 1;
}
/* Initialize the compiler back end. */
/* Enable line number info for traceback. */
|| debug_info_level > DINFO_LEVEL_NONE
#endif
- || flag_test_coverage
- || warn_notreached);
+ || flag_test_coverage);
init_regs ();
init_fake_stack_mems ();
static int
lang_dependent_init (const char *name)
{
+ location_t save_loc = input_location;
if (dump_base_name == 0)
- dump_base_name = name ? name : "gccdump";
+ dump_base_name = name && name[0] ? name : "gccdump";
/* Other front-end initialization. */
+#ifdef USE_MAPPED_LOCATION
+ input_location = BUILTINS_LOCATION;
+#else
+ input_filename = "<built-in>";
+ input_line = 0;
+#endif
if (lang_hooks.init () == 0)
return 0;
+ input_location = save_loc;
init_asm_output (name);
front end is initialized. */
init_eh ();
init_optabs ();
- init_optimization_passes ();
/* The following initialization functions need to generate rtl, so
provide a dummy function context for them. */
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