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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fe16d48fae5..f1b9bcdaa76 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,59 @@ +2010-08-30 Eric Botcazou <ebotcazou@adacore.com> + + Stack usage support + * common.opt (-fstack-usage): New option. + * doc/invoke.texi (Debugging options): Document it. + * builtins.c (expand_builtin_apply): Pass TRUE as 4th argument to + allocate_dynamic_stack_space. + (expand_builtin_alloca): Add 4th bool parameter CANNOT_ACCUMULATE + and propagate it to allocate_dynamic_stack_space. + (expand_builtin) <BUILT_IN_ALLOCA>: Adjust for above change. + * calls.c (initialize_argument_information): Pass TRUE as 4th + argument to allocate_dynamic_stack_space. + (expand_call): Set current_function_has_unbounded_dynamic_stack_size + to 1 when pushing a variable-sized argument onto the stack. Pass + TRUE as 4th argument to allocate_dynamic_stack_space. + Update current_function_pushed_stack_size. + (emit_library_call_value_1): Likewise. + * explow.c (allocate_dynamic_stack_space): Add 4th bool parameter + CANNOT_ACCUMULATE. If flag_stack_usage, look into the size and + attempt to find an upper bound. Remove redundant code for the + SETJMP_VIA_SAVE_AREA case. + * expr.h (allocate_dynamic_stack_space): Add 4th bool parameter. + * function.h (struct stack_usage): New structure. + (current_function_static_stack_size): New macro. + (current_function_dynamic_stack_size): Likewise. + (current_function_pushed_stack_size): Likewise. + (current_function_dynamic_alloc_count): Likewise. + (current_function_has_unbounded_dynamic_stack_size): Likewise. + (current_function_allocates_dynamic_stack_space): Likewise. + (struct function): Add new field 'su'. + * function.c (instantiate_virtual_regs): If SETJMP_VIA_SAVE_AREA, + add the value of the dynamic offset to the dynamic stack usage. + (gimplify_parameters): Set ALLOCA_FOR_VAR_P on call to BUILT_IN_ALLOCA + for variable-sized objects. + (prepare_function_start): Allocate cfun->su if flag_stack_usage. + (rest_of_handle_thread_prologue_and_epilogue): Call output_stack_usage. + * gimplify.c (gimplify_decl_expr): Set ALLOCA_FOR_VAR_P on call to + BUILT_IN_ALLOCA for variable-sized objects. + * output.h (output_stack_usage): Declare. + * toplev.c (stack_usage_file): New file pointer. + (output_stack_usage): New function. + (open_auxiliary_file): Likewise. + (lang_dependent_init): Open file if flag_stack_usage is set. + (finalize): Close file if stack_usage_file is not null. + * tree.h (ALLOCA_FOR_VAR_P): New macro. + * config/alpha/alpha.c (compute_frame_size): New function. + (alpha_expand_prologue): Use it. + (alpha_start_function): Likewise. + (alpha_expand_epilogue): Likewise. Set stack usage info. + * config/i386/i386.c (ix86_expand_prologue): Likewise. + * config/ia64/ia64.c (ia64_expand_prologue): Likewise. + * config/mips/mips.c (mips_expand_prologue): Likewise. + * config/pa/pa.c (hppa_expand_prologue): Likewise. + * config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise. + * config/sparc/sparc.c (sparc_expand_prologue): Likewise. + 2010-08-30 Zdenek Dvorak <ook@ucw.cz> PR tree-optimization/45427 @@ -6,7 +62,7 @@ (number_of_iterations_ne): Pass exit_must_be_taken to number_of_iterations_ne_max. -2010-08-31 Catherine Moore <clm@codesourcery.com> +2010-08-30 Catherine Moore <clm@codesourcery.com> * config/mips/mips.h (BASE_DRIVER_SELF_SPECS): Infer -mdspr2 for the the 74K. |