diff options
Diffstat (limited to 'gcc-4.9/gcc/varasm.c')
| -rw-r--r-- | gcc-4.9/gcc/varasm.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/gcc-4.9/gcc/varasm.c b/gcc-4.9/gcc/varasm.c index f4da29576..163814053 100644 --- a/gcc-4.9/gcc/varasm.c +++ b/gcc-4.9/gcc/varasm.c @@ -96,11 +96,6 @@ tree last_assemble_variable_decl; bool first_function_block_is_cold; -/* We give all constants their own alias set. Perhaps redundant with - MEM_READONLY_P, but pre-dates it. */ - -static alias_set_type const_alias_set; - /* Whether we saw any functions with no_split_stack. */ static bool saw_no_split_stack; @@ -169,6 +164,13 @@ section *in_section; at the cold section. */ bool in_cold_section_p; +/* The following global holds the "function name" for the code in the + cold section of a function, if hot/cold function splitting is enabled + and there was actually code that went into the cold section. A + pseudo function name is needed for the cold section of code for some + debugging tools that perform symbolization. */ +tree cold_function_name = NULL_TREE; + /* A linked list of all the unnamed sections. */ static GTY(()) section *unnamed_sections; @@ -1624,6 +1626,7 @@ assemble_start_function (tree decl, const char *fnname) ASM_GENERATE_INTERNAL_LABEL (tmp_label, "LCOLDE", const_labelno); crtl->subsections.cold_section_end_label = ggc_strdup (tmp_label); const_labelno++; + cold_function_name = NULL_TREE; } else { @@ -1756,6 +1759,10 @@ assemble_end_function (tree decl, const char *fnname ATTRIBUTE_UNUSED) save_text_section = in_section; switch_to_section (unlikely_text_section ()); + if (cold_function_name != NULL_TREE) + ASM_DECLARE_FUNCTION_SIZE (asm_out_file, + IDENTIFIER_POINTER (cold_function_name), + decl); ASM_OUTPUT_LABEL (asm_out_file, crtl->subsections.cold_section_end_label); if (first_function_block_is_cold) switch_to_section (text_section); @@ -3265,7 +3272,6 @@ build_constant_desc (tree exp) rtl = gen_const_mem (TYPE_MODE (TREE_TYPE (exp)), symbol); set_mem_attributes (rtl, exp, 1); set_mem_alias_set (rtl, 0); - set_mem_alias_set (rtl, const_alias_set); /* We cannot share RTX'es in pool entries. Mark this piece of RTL as required for unsharing. */ @@ -5983,7 +5989,6 @@ init_varasm_once (void) const_desc_htab = htab_create_ggc (1009, const_desc_hash, const_desc_eq, NULL); - const_alias_set = new_alias_set (); shared_constant_pool = create_constant_pool (); #ifdef TEXT_SECTION_ASM_OP |