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| author | Caroline Tice <ctice@apple.com> | 2005-03-31 14:59:59 +0000 |
|---|---|---|
| committer | Caroline Tice <ctice@apple.com> | 2005-03-31 14:59:59 +0000 |
| commit | 0d5e2070e13495cb413449c12932f8b6d10a3c5d (patch) | |
| tree | ade60c4c4ed198b0036370e03ebd3a1f64ee4817 /gcc/output.h | |
| parent | 910eabcd395ba1e558d322c2dee26b2f5b83b10a (diff) | |
Fix problems with hot/cold partitioning optimization.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@97322 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/output.h')
| -rw-r--r-- | gcc/output.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/output.h b/gcc/output.h index dbc2d4745dd..4d9eabb49f7 100644 --- a/gcc/output.h +++ b/gcc/output.h @@ -209,6 +209,9 @@ extern void named_section (tree, const char *, int); /* Tell assembler to switch to the section for function DECL. */ extern void function_section (tree); +/* Tell assembler to switch to the most recently used text section. */ +extern void current_function_section (tree); + /* Tell assembler to switch to the section for string merging. */ extern void mergeable_string_section (tree, unsigned HOST_WIDE_INT, unsigned int); @@ -431,6 +434,34 @@ extern rtx this_is_asm_operands; extern int size_directive_output; extern tree last_assemble_variable_decl; +enum in_section { no_section, in_text, in_unlikely_executed_text, in_data, + in_named +#ifdef BSS_SECTION_ASM_OP + , in_bss +#endif +#ifdef CTORS_SECTION_ASM_OP + , in_ctors +#endif +#ifdef DTORS_SECTION_ASM_OP + , in_dtors +#endif +#ifdef READONLY_DATA_SECTION_ASM_OP + , in_readonly_data +#endif +#ifdef EXTRA_SECTIONS + , EXTRA_SECTIONS +#endif +}; + +extern char *unlikely_section_label; +extern char *hot_section_label; +extern char *hot_section_end_label; +extern char *cold_section_end_label; +extern char *unlikely_text_section_name; +extern const char *last_text_section_name; +extern enum in_section last_text_section; +extern bool first_function_block_is_cold; + /* Decide whether DECL needs to be in a writable section. RELOC is the same as for SELECT_SECTION. */ extern bool decl_readonly_section (tree, int); @@ -519,6 +550,10 @@ extern bool default_valid_pointer_mode (enum machine_mode); extern int default_address_cost (rtx); +/* When performing hot/cold basic block partitioning, insert note in + instruction stream indicating boundary between hot and cold sections. */ +extern void insert_section_boundary_note (void); + /* dbxout helper functions */ #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO |