A recent patch increased GCC's memory consumption!
gcctest@suse.de
gcctest@suse.de
Wed Dec 7 10:08:00 GMT 2005
Hi,
I am a friendly script caring about memory consumption in GCC. Please
contact jh@suse.cz if something is going wrong.
Comparing memory consumption on compilation of combine.i, insn-attrtab.i,
and generate-3.4.ii I got:
comparing combine.c compilation at -O0 level:
Overall memory needed: 24993k -> 24997k
Peak memory use before GGC: 9600k
Peak memory use after GGC: 8947k
Maximum of released memory in single GGC run: 2736k -> 2737k
Garbage: 40120k -> 40126k
Leak: 6665k -> 6666k
Overhead: 5745k -> 5745k
GGC runs: 317
comparing combine.c compilation at -O1 level:
Overall memory needed: 26824k
Peak memory use before GGC: 17368k -> 17369k
Peak memory use after GGC: 17185k
Maximum of released memory in single GGC run: 2373k -> 2372k
Garbage: 60902k -> 60909k
Leak: 6848k -> 6848k
Overhead: 7555k -> 7555k
GGC runs: 389
comparing combine.c compilation at -O2 level:
Overall memory needed: 26824k
Peak memory use before GGC: 17370k
Peak memory use after GGC: 17185k
Maximum of released memory in single GGC run: 2453k -> 2454k
Garbage: 77567k -> 77572k
Leak: 6933k -> 6934k
Overhead: 9994k -> 9995k
GGC runs: 457
comparing combine.c compilation at -O3 level:
Overall memory needed: 26824k
Peak memory use before GGC: 18370k -> 18371k
Peak memory use after GGC: 18000k -> 18001k
Maximum of released memory in single GGC run: 3521k
Garbage: 108292k -> 108281k
Leak: 7011k -> 7011k
Overhead: 13571k -> 13569k
GGC runs: 510
comparing insn-attrtab.c compilation at -O0 level:
Amount of memory still referenced at the end of compilation increased from 9817k to 10057k, overall 2.45%
Overall memory needed: 80920k -> 80924k
Peak memory use before GGC: 69474k
Peak memory use after GGC: 45012k
Maximum of released memory in single GGC run: 36247k
Garbage: 146698k -> 146439k
Leak: 9817k -> 10057k
Overhead: 19752k -> 19752k
GGC runs: 252 -> 251
comparing insn-attrtab.c compilation at -O1 level:
Overall memory needed: 112084k -> 112088k
Peak memory use before GGC: 94461k -> 94462k
Peak memory use after GGC: 83560k -> 83561k
Maximum of released memory in single GGC run: 32589k -> 32588k
Garbage: 296189k
Leak: 10035k -> 10036k
Overhead: 36707k -> 36707k
GGC runs: 247
comparing insn-attrtab.c compilation at -O2 level:
Overall memory needed: 125656k
Peak memory use before GGC: 111816k
Peak memory use after GGC: 83472k -> 83473k
Maximum of released memory in single GGC run: 32178k -> 32177k
Garbage: 381050k
Leak: 10136k -> 10137k
Overhead: 48221k -> 48222k
GGC runs: 275
comparing insn-attrtab.c compilation at -O3 level:
Overall memory needed: 125708k -> 125704k
Peak memory use before GGC: 111846k
Peak memory use after GGC: 83502k -> 83503k
Maximum of released memory in single GGC run: 32502k
Garbage: 381633k
Leak: 10141k -> 10141k
Overhead: 48374k -> 48374k
GGC runs: 277
comparing Gerald's testcase PR8361 compilation at -O0 level:
Amount of memory still referenced at the end of compilation increased from 49156k to 49220k, overall 0.13%
Overall memory needed: 118388k
Peak memory use before GGC: 95144k -> 95146k
Peak memory use after GGC: 94196k -> 94197k
Maximum of released memory in single GGC run: 20460k -> 20461k
Garbage: 223590k -> 223584k
Leak: 49156k -> 49220k
Overhead: 36686k -> 36701k
GGC runs: 370 -> 369
comparing Gerald's testcase PR8361 compilation at -O1 level:
Overall memory needed: 105524k -> 105528k
Peak memory use before GGC: 95273k
Peak memory use after GGC: 93199k
Maximum of released memory in single GGC run: 20343k -> 20342k
Garbage: 567494k -> 567532k
Leak: 54980k -> 54986k
Overhead: 67976k -> 67978k
GGC runs: 522
comparing Gerald's testcase PR8361 compilation at -O2 level:
Overall memory needed: 106496k -> 106516k
Peak memory use before GGC: 95273k -> 95274k
Peak memory use after GGC: 93199k
Maximum of released memory in single GGC run: 20342k -> 20343k
Garbage: 649381k -> 649396k
Leak: 55778k -> 55767k
Overhead: 79004k -> 79006k
GGC runs: 584 -> 585
comparing Gerald's testcase PR8361 compilation at -O3 level:
Overall memory needed: 109444k -> 109436k
Peak memory use before GGC: 96741k -> 96742k
Peak memory use after GGC: 94276k -> 94277k
Maximum of released memory in single GGC run: 20838k -> 20839k
Garbage: 708176k -> 708198k
Leak: 57022k -> 57028k
Overhead: 83981k -> 83986k
GGC runs: 593
Head of the ChangeLog is:
--- /usr/src/SpecTests/sandbox-britten-memory/x86_64/mem-result/ChangeLog 2005-12-06 22:40:15.000000000 +0000
+++ /usr/src/SpecTests/sandbox-britten-memory/gcc/gcc/ChangeLog 2005-12-07 08:57:41.000000000 +0000
@@ -1,3 +1,506 @@
+2005-12-07 Richard Sandiford <richard@codesourcery.com>
+
+ * config/alpha/alpha.c (alpha_start_function): Use switch_to_section.
+ (alpha_elf_select_rtx_section): Return the selected section rather
+ than emitting assembly code.
+ (alpha_write_linkage): Emit a ".link" directive directly and then
+ set in_section to NULL.
+ (vms_asm_out_constructor): Use switch_to_section.
+ (vms_asm_out_destructor): Likewise.
+ (unicosmk_output_common): Set in_section to NULL instead of calling
+ the dummy common_section function.
+ (unicosmk_text_section): Delete in favor of...
+ (unicosmk_output_text_section_asm_op): ...this new function.
+ (unicosmk_data_section): Delete in favor of...
+ (unicosmk_output_data_section_asm_op): ...this new function.
+ (unicosmk_init_sections): New function.
+ (unicosmk_output_deferred_case_vectors): Use switch_to_section.
+ (unicosmk_output_ssib): Set in_section to NULL instead of calling
+ the dummy ssib_section function.
+ (unicosmk_section_buf): Delete.
+ * config/alpha/alpha-protos.h (unicosmk_text_section): Delete.
+ (unicosmk_data_section): Delete.
+ * config/alpha/elf.h (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, sbss_section, sdata_section)
+ (SECTION_FUNCTION_TEMPLATE): Delete.
+ * config/alpha/unicosmk.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP)
+ (READONLY_DATA_SECTION, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (common_section, COMMON_SECTION, ssib_section, SSIB_SECTION): Delete.
+ (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ * config/alpha/vms.h (LINK_SECTION_ASM_OP, LITERALS_SECTION_ASM_OP)
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (link_section, literals_section): Delete.
+ (ASM_OUTPUT_DEF): Emit the ".literal" directive directly and then
+ set in_section to NULL.
+
+ * config/arm/aof.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Delete.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, ZERO_INIT_SECTION): Delete.
+ (COMMON_SECTION): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ (ASM_OUTPUT_COMMON): Set in_section to NULL rather than calling
+ the dummy common_section function.
+ * config/arm/aout.h (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
+ * config/arm/arm.c (get_jump_table_size): Use pointer comparison
+ between readonly_data_section and text_section to check whether
+ read-only data is being put in the text section.
+ (arm_output_function_epilogue): Use switch_to_section.
+ (arm_elf_asm_constructor): Likewise.
+ (thumb_call_via_reg): Replace call to in_text_section with
+ a comparison between in_section and text_section.
+ (arm_file_end): Use switch_to_section.
+ (aof_text_section): Delete in favor of...
+ (aof_output_text_section_asm_op): ...this new function.
+ (aof_data_section): Delete in favor of...
+ (aof_output_data_section_asm_op): ...this new function.
+ (aof_asm_init_sections): New function.
+ (zero_init_section): Moved from config/arm/aof.h.
+ (aof_dump_imports, aof_file_start): Use switch_to_section.
+ * config/arm/arm.h (thumb_call_via_label): Update comment.
+ * config/arm/arm-protos.h (aof_text_section, aof_data_section): Delete.
+ (common_section): Delete.
+ * config/arm/pe.h (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
+ (ASM_DECLARE_OBJECT_NAME): Update the type of save_section. Use the
+ global switch_to_section function instead of the old port-local one.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, DRECTVE_SECTION_FUNCTION)
+ (SWITCH_TO_SECTION_FUNCTION): Delete.
+ (drectve_section): Redefine as a macro.
+ * config/arm/unknown-elf.h (ASM_OUTPUT_ALIGNED_BSS):
+ (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use get_named_section and
+ switch_to_section.
+
+ * config/avr/avr.c (progmem_section): New variable.
+ (avr_output_progmem_section_asm_op): New function.
+ (avr_asm_init_sections): New function.
+ (avr_output_addr_vec_elt): Use switch_to_section.
+ * config/avr/avr.h (progmem_section): Declare.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (READONLY_DATA_SECTION): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ (ASM_OUTPUT_CASE_LABEL): Use switch_to_section.
+ * config/avr/avr-protos.h (progmem_section): Delete.
+
+ * config/bfin/bfin.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
+
+ * config/c4x/c4x.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (INIT_SECTION_FUNCTION, FINI_SECTION_FUNCTION): Delete.
+
+ * config/darwin-sections.def: New file.
+ * config/darwin.c: Define all sections in darwin-sections.def.
+ (output_objc_section_asm_op, darwin_init_sections): New functions.
+ (machopic_output_indirection): Use switch_to_section.
+ (machopic_select_section): Return the selected section rather than
+ emitting assembly code. Replace the static function table with
+ inline conditional expressions. Update the tests of last_text_section
+ and move them into the FUNCTION_DECL block.
+ (machopic_select_rtx_section): Return the selected section rather than
+ emitting assembly code.
+ (machopic_asm_out_constructor, machopic_asm_out_destructor)
+ (darwin_file_end): Use switch_to_section.
+ * config/darwin.h: Use darwin-sections.def to declare sections.
+ (INIT_SECTION_ASM_OP): Remove empty definition.
+ (HAS_INIT_SECTION): Define this instead.
+ (SECTION_FUNCTION, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Delete.
+ (TARGET_ASM_EH_FRAME_SECTION): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ * config/darwin-protos.h (darwin_init_sections): Declare.
+ (machopic_picsymbol_stub_section, machopic_picsymbol_stub1_section)
+ (machopic_symbol_stub_section, machopic_symbol_stub1_section): Delete.
+ (machopic_lazy_symbol_ptr_section, machopic_nl_symbol_ptr_section)
+ (constructor_section, destructor_section, mod_init_section): Delete.
+ (mod_term_section): Delete.
+ (darwin_exception_section, darwin_eh_frame_section): Delete.
+ (machopic_select_section): Return a section.
+ (machopic_select_rtx_section): Likewise.
+ (text_coal_section, text_unlikely_section, text_unlikely_coal_section)
+ (const_section, const_coal_section, const_data_section): Delete.
+ (const_data_coal_section, data_coal_section, cstring_section): Delete.
+ (literal4_section, literal8_section, constructor_section): Delete.
+ (mod_init_section, mod_term_section, destructor_section): Delete.
+ (objc_class_section, objc_meta_class_section, objc_category_section)
+ (objc_class_vars_section, objc_instance_vars_section): Delete.
+ (objc_cls_meth_section, objc_inst_meth_section): Delete.
+ (objc_cat_cls_meth_section, objc_cat_inst_meth_section): Delete.
+ (objc_selector_refs_section, objc_selector_fixup_section): Delete.
+ (objc_symbols_section, objc_module_info_section): Delete.
+ (objc_image_info_section, objc_protocol_section): Delete.
+ (objc_string_object_section, objc_constant_string_object_section)
+ (objc_class_names_section, objc_meth_var_names_section): Delete.
+ (objc_meth_var_types_section, objc_cls_refs_section): Delete.
+ (machopic_lazy_symbol_ptr_section, machopic_nl_symbol_ptr_section)
+ (machopic_symbol_stub_section, machopic_picsymbol_stub_section)
+ (darwin_exception_section, darwin_eh_frame_section): Delete.
+ * config/t-darwin (darwin.o): Depend on config/darwin-sections.def.
+
+ * config/frv/frv.c (frv_asm_out_constructor): Use switch_to_section.
+ (frv_asm_out_destructor): Likewise.
+ * config/frv/frv.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (SDATA_SECTION_FUNCTION, FIXUP_SECTION_FUNCTION): Delete.
+ (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use switch_to_section and
+ get_named_section.
+ (ASM_OUTPUT_CASE_LABEL): Use switch_to_section.
+ * config/frv/frv-protos.h (fixup_section, sdata_section, sbss_section)
+ (data_section): Delete.
+
+ * config/i386/cygming.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (DRECTVE_SECTION_FUNCTION): Delete.
+ (drectve_section): Redefine as a macro that sets in_section after
+ emitting the directive.
+ (SWITCH_TO_SECTION_FUNCTION): Delete.
+ * config/i386/darwin.h (ASM_OUTPUT_ALIGN): Replace call to
+ in_text_section with comparison between in_section and text_section.
+ * config/i386/i386.c (x86_64_elf_select_section): Return the section
+ rather than emitting assembly code. Use get_named_section.
+ (x86_output_aligned_bss, ix86_file_end): Use switch_to_section and
+ get_named_section.
+ (machopic_output_stub): Use switch_to_section.
+ * config/i386/nwld.c (nwld_named_section_asm_out_constructor)
+ (nwld_named_section_asm_out_destructor): Use get_section and
+ switch_to_section.
+
+ * config/ia64/ia64.c (ia64_select_rtx_section): Return the section
+ rather than emitting assembly code.
+ (ia64_rwreloc_select_section): Likewise.
+ (ia64_rwreloc_select_rtx_section): Likewise.
+ * config/ia64/ia64-protos.h (sdata_section, sbss_section): Delete.
+ * config/ia64/sysv4.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
+ switch_to_section.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (SDATA_SECTION_FUNCTION, SBSS_SECTION_FUNCTION): Delete.
+
+ * config/iq2000/iq2000.c (iq2000_select_rtx_section): Return the
+ section rather than emitting assembly code.
+ (iq2000_select_section): Likewise.
+ * config/iq2000/iq2000.h (rdata_section, sdata_section): Delete.
+ (sbss_section): Delete.
+
+ * config/m32r/m32r.h (ASM_OUTPUT_ALIGNED_BSS): Use switch_to_section
+ and get_named_section.
+ * config/m32r/m32r-protos.h (sbss_section, sdata_section): Delete.
+
+ * config/mcore/mcore-elf.h (EXPORTS_SECTION_ASM_OP): Delete.
+ (SUBTARGET_EXTRA_SECTIONS, SUBTARGET_EXTRA_SECTION_FUNCTIONS): Delete.
+ (EXPORT_SECTION_FUNCTION, SUBTARGET_SWITCH_SECTIONS): Delete.
+ (MCORE_EXPORT_NAME): Emit the exports directive directly, then set
+ in_section to NULL.
+ (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
+ (ASM_DECLARE_OBJECT_NAME): Update the type of save_section. Use the
+ global switch_to_section function instead of the old port-local one.
+ * config/mcore/mcore.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (SWITCH_SECTION_FUNCTION): Delete.
+ * config/mcore/mcore-pe.h (SUBTARGET_SWITCH_SECTIONS): Delete.
+ (DRECTVE_SECTION_ASM_OP, SUBTARGET_EXTRA_SECTIONS): Delete.
+ (SUBTARGET_EXTRA_SECTION_FUNCTIONS, DRECTVE_SECTION_FUNCTION): Delete.
+ (MCORE_EXPORT_NAME): Emit ".section .drectve" directly, then set
+ in_section to NULL.
+ (ASM_DECLARE_OBJECT_NAME): Update the type of save_section. Use the
+ global switch_to_section function instead of the old port-local one.
+ (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
+
+ * config/mips/mips.c (mips_file_start): Update comment.
+ (mips_output_aligned_bss): Use switch_to_section and get_named_section.
+ (mips_output_aligned_decl_common): Use switch_to_section.
+ (mips_select_rtx_section): Return the section rather than emitting
+ assembly code. Use get_named_section.
+ (mips_function_rodata_section: Likewise get_section.
+ (build_mips16_function_stub): Use switch_to_section.
+ * config/mips/mips.h (ASM_OUTPUT_IDENT): Use switch_to_section.
+ (SDATA_SECTION_ASM_OP): Delete.
+ * config/mips/vxworks.h (EXTRA_SECTIONS): Delete.
+ (EXTRA_SECTION_FUNCTIONS): Delete.
+
+ * config/mmix/mmix.c (mmix_file_start, mmix_file_end)
+ (mmix_asm_output_aligned_local): Use switch_to_section.
+
+ * config/pa/pa.c (som_readonly_data_section, som_one_only_data_section)
+ (som_one_only_readonly_data_section): New variables.
+ (pa_output_function_epilogue): Set in_section to NULL instead of
+ calling forget_section.
+ (output_deferred_plabels): Use select_section.
+ (pa_asm_output_mi_thunk): Likewise. Set in_section to NULL instead
+ of calling forget_section.
+ (pa_asm_output_aligned_bss, pa_asm_output_aligned_common)
+ (pa_asm_output_aligned_local): Use select_section.
+ (som_text_section_asm_op): Delete in favor of...
+ (som_output_text_section_asm_op): ...this new function.
+ (pa_som_asm_init_sections): New function.
+ (pa_select_section): Return the section rather than emitting
+ assembly code.
+ * config/pa/pa.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (SOM_READONLY_DATA_SECTION_FUNCTION): Delete.
+ (SOM_ONE_ONLY_READONLY_DATA_SECTION_FUNCTION): Delete.
+ (SOM_ONE_ONLY_DATA_SECTION_FUNCTION, FORGET_SECTION_FUNCTION): Delete.
+ * config/pa/pa-protos.h (som_text_section_asm_op): Delete.
+ (som_readonly_data_section, som_one_only_readonly_data_section)
+ (som_one_only_data_section, forget_section): Delete.
+ * config/pa/som.h (TEXT_SECTION_ASM_OP): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Delete.
+
+ * config/rs6000/rs6000.c (read_only_data_section): New variable.
+ (private_data_section, read_only_private_data_section): New variables.
+ (sdata2_section, toc_section): New variables.
+ (rs6000_file_start): Use switch_to_section.
+ (rs6000_assemble_integer): Use comparisons against in_section
+ instead of calling in_toc_section and in_text_section. Use
+ unlikely_text_section_p.
+ (rs6000_elf_output_toc_section_asm_op): New function, derived
+ from the old rs6000/sysv4.h toc_section function.
+ (rs6000_elf_asm_init_sections): New function.
+ (rs6000_elf_select_rtx_section, rs6000_elf_select_section): Return
+ the section rather than emitting assembly code.
+ (machopic_output_stub): Use switch_to_section.
+ (toc_section): Delete dummy function.
+ (rs6000_elf_asm_out_constructor, rs6000_elf_asm_out_destructor): Use
+ switch_to_section and get_section.
+ (rs6000_xcoff_output_readonly_section_asm_op): New function.
+ (rs6000_xcoff_output_readwrite_section_asm_op): New function.
+ (rs6000_xcoff_output_toc_section_asm_op): New function, derived from
+ the old rs6000/xcoff.h toc_section function.
+ (rs6000_xcoff_asm_init_sections): New function.
+ (rs6000_xcoff_select_section, rs6000_xcoff_select_rtx_section): Return
+ the section rather than emitting assembly code.
+ (rs6000_xcoff_file_start): Use switch_to_section.
+ (rs6000_xcoff_file_end): Likewise.
+ * config/rs6000/rs6000-protos.h (toc_section, sdata_section): Delete.
+ (sdata2_section, sbss_section, private_data_section): Delete.
+ (read_only_data_section, read_only_private_data_section): Delete.
+ * config/rs6000/sysv4.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (TOC_SECTION_FUNCTION, SDATA_SECTION_FUNCTION, SDATA2_SECTION_FUNCTION)
+ (SBSS_SECTION_FUNCTION, INIT_SECTION_FUNCTION): Delete.
+ (FINI_SECTION_FUNCTION): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
+ * config/rs6000/xcoff.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (READ_ONLY_DATA_SECTION_FUNCTION, PRIVATE_DATA_SECTION_FUNCTION)
+ (READ_ONLY_PRIVATE_DATA_SECTION_FUNCTION, TOC_SECTION_FUNCTION)
+ (READONLY_DATA_SECTION): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section. Set in_section
+ to NULL rather than no_section.
+ (TARGET_ASM_EXCEPTION_SECTION): Delete.
+
+ * config/sh/sh.c (sh_file_start): Use switch_to_section.
+
+ * config/sparc/sparc.c (emit_pic_helper): Use switch_to_section.
+ (sparc_output_deferred_case_vectors): Likewise. Remove argument
+ from call to current_function_section.
+
+ * config/stormy16/stormy16.c: Include ggc.h and gt-storm16.h.
+ (bss100_section): New variable.
+ (xstormy16_asm_output_aligned_common): Use switch_to_section.
+ (xstormy16_asm_init_sections): New function.
+ (xstormy16_asm_out_destructor, xstormy16_asm_out_constructor): Use
+ switch_to_section and get_section.
+ (xstormy16_output_addr_vec): Use switch_to_section. Remove argument
+ from calls to current_function_section.
+ * config/stormy16/stormy16.h (EXTRA_SECTIONS): Delete.
+ (XSTORMY16_SECTION_FUNCTION, EXTRA_SECTION_FUNCTIONS): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ * config/stormy16/stormy16-protos.h (bss100_section): Delete.
+
+ * config/svr3.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, INIT_SECTION_FUNCTION)
+ (FINI_SECTION_FUNCTION): Delete.
+
+ * config/v850/v850.c: Include gt-v850.h.
+ (rosdata_section, rozdata_section, tdata_section, zdata_section)
+ (zbss_section): New variables.
+ (v850_output_aligned_bss): Use switch_to_section.
+ (v850_asm_init_sections): New function.
+ (v850_select_section): Return the section rather than emitting
+ assembly code.
+ * config/v850/v850.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
+ (ZDATA_SECTION_ASM_OP, ZBSS_SECTION_ASM_OP, TDATA_SECTION_ASM_OP)
+ (ROSDATA_SECTION_ASM_OP, ROZDATA_SECTION_ASM_OP): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Define.
+ * config/v850/v850-protos.h (sdata_section, rosdata_section): Delete.
+ (sbss_section, tdata_section, zdata_section, rozdata_section): Delete.
+ (zbss_section): Delete.
+
+ * config/vax/vaxv.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
+
+ * config/vx-common.h (vxworks_exception_section): Delete.
+ (TARGET_ASM_EXCEPTION_SECTION): Delete.
+
+ * config/xtensa/xtensa.c (xtensa_select_rtx_section): Return the
+ section rather than emitting assembly code.
+ * config/xtensa/xtensa.h (ASM_OUTPUT_POOL_PROLOGUE): Use
+ switch_to_section.
+
+ * Makefile.in (GTFILES): Add $(srcdir)/output.h.
+ * coretypes.h (section): New union and typedef.
+ * dbxout.c (FORCE_TEXT): Use switch_to_section. Remove argument
+ from call to current_function_section.
+ (dbxout_function_end, dbxout_init, dbxout_source_file, dbxout_finish)
+ (dbxout_symbol_location): Use switch_to_section.
+ * dwarf2out.c (named_section_eh_frame_section): Delete, moving
+ most of the code into...
+ (default_eh_frame_section): ...here. Return a section.
+ (collect2_eh_frame_section): Delete, moving most of the code into..
+ (switch_to_eh_frame_section): ...this new function.
+ (debug_info_section, debug_abbrev_section, debug_aranges_section)
+ (debug_macinfo_section, debug_line_section, debug_loc_section)
+ (debug_pubnames_section, debug_str_section, debug_ranges_section): New
+ variables.
+ (output_call_frame_info): Call switch_to_eh_frame_section instead of
+ eh_frame_section. Use switch_to_section and get_section.
+ (dwarf2out_begin_prologue): Use switch_to_section.
+ (AT_string_form): Check the flags in debug_str_section instead of
+ DEBUG_STR_SECTION_FLAGS.
+ (output_comp_unit): Use switch_to_section, get_section, and
+ debug_info_section.
+ (output_line_info, secname_for_decl): Use unlikely_text_section_p.
+ (dwarf2out_begin_block): Use switch_to_section. Remove argument
+ from call to current_function_section.
+ (dwarf2out_var_location): Use unlikely_text_section_p.
+ (dwarf2out_source_line): Use switch_to_section. Remove argument
+ from call to current_function_section.
+ (dwarf2out_start_source_file, dwarf2out_end_source_file)
+ (dwarf2out_define, dwarf2out_undef: Use switch_to_section and
+ debug_macinfo_section.
+ (dwarf2out_init): Initialize the new section variables. Use them
+ instead of calls to named_section_flags. Use switch_to_section.
+ (output_indirect_string): Use switch_to_section and debug_str_section.
+ (dwarf2out_finish): Use switch_to_section and the new section
+ variables.
+ * except.c (default_exception_section): Return the section instead
+ of emitting assembly code.
+ (output_function_exception_table): Use the global exception_section
+ variable instead of the target hook. Use switch_to_section. Remove
+ argument from call to current_function_section.
+ * final.c (HAVE_READONLY_DATA_SECTION): Delete.
+ (shorten_branches): Use pointer comparisons to detect whether the
+ text section is the same as readonly_data_section.
+ (profile_function): Use switch_to_section. Remove argument from
+ call to current_function_section.
+ (final_scan_insn): Likewise. Update use of last_text_section.
+ * gengtype.c (open_base_files): Add an include of output.h.
+ * output.h (text_section, data_section, readonly_data_section)
+ (ctors_section, dtors_section, bss_section, init_section)
+ (fini_section, sdata_section): Turn into section pointers.
+ (in_text_section, in_unlikely_text_section, exports_section)
+ (drectve_section, named_section, mergeable_string_section)
+ (last_text_section_name): Delete.
+ (default_exception_section, default_eh_frame_section): Return sections.
+ (SECTION_DECLARED, SECTION_NAMED): New macros.
+ (SECTION_MACH_DEP): Bump value.
+ (section_common, named_section, unnamed_section): New structures.
+ (unnamed_section_callback): New typedef.
+ (section): New union.
+ (sbss_section, exception_section, eh_frame_section): New variables.
+ (in_section, last_text_section): Turn into section pointers.
+ (get_unnamed_section, get_section, get_named_section): New functions.
+ (mergeable_constant_section, function_section): Return a section.
+ (unlikely_text_section): Likewise.
+ (current_function_section): Likewise. Remove the decl argument.
+ (unlikely_text_section_p, switch_to_section): New functions.
+ (output_section_asm_op): New function.
+ (set_named_section_flags, named_section_flags, named_section_real)
+ (named_section_first_declaration): Delete.
+ (default_select_section, default_elf_select_section): Return a section.
+ (default_elf_select_section_1, default_function_rodata_section)
+ (default_no_function_rodata_section, default_select_rtx_section)
+ (default_elf_select_rtx_section): Likewise.
+ * rtl.h (in_data_section): Delete.
+ * sdbout.c (sdbout_one_type): Use switch_to_section.
+ * system.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Poison.
+ (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Poison.
+ (TARGET_ASM_EH_FRAME_SECTION): Poison.
+ * target-def.h (TARGET_ASM_INIT_SECTIONS): New macro.
+ (TARGET_ASM_EXCEPTION_SECTION, TARGET_ASM_EH_FRAME_SECTION): Delete.
+ (TARGET_ASM_OUT): Update after above changes.
+ * target.h (init_sections): New hook.
+ (exception_section, eh_frame_section): Delete.
+ (select_section, select_rtx_section, function_rodata_section): Return
+ a section rather than emitting assembly code.
+ * varasm.c (text_section, data_section, readonly_data_section)
+ (ctors_section, dtors_section, bss_section, init_section)
+ (fini_section): Turn into section pointers.
+ (sdata_section, sbss_section, exception_section): New variables.
+ (eh_frame_section): New variable.
+ (in_section): Make global and turn into a section pointer.
+ (last_text_section): Turn into a section pointer.
+ (unnamed_sections): New variable.
+ (in_named_name, last_text_section_name): Delete.
+ (EXTRA_SECTION_FUNCTIONS): Delete.
+ (in_named_entry): Delete.
+ (section_htab): New variable, replacing...
+ (in_named_htab): ...this deleted variable.
+ (section_entry_eq, section_entry_hash): New functions, based on...
+ (in_named_entry_eq, in_named_entry_hash): ...these deleted functions.
+ (get_unnamed_section, get_section): New functions.
+ (unlikely_text_section): Return a section instead of emitting
+ assembly code.
+ (in_text_section, in_unlikely_text_section, in_data_section): Delete.
+ (get_named_section_flags, named_section_first_declaration): Delete.
+ (unlikely_text_section_p): New function.
+ (named_section_real, named_section): Delete.
+ (get_named_section): New function.
+ (asm_output_bss, asm_output_aligned_bss): Use switch_to_section.
+ (function_section): Return a section rather than emitting
+ assembly code.
+ (current_function_section): Likewise. Remove argument. Use
+ last_text_section if nonnull, otherwise use function_section.
+ (default_function_rodata_section): Return a section rather than
+ emitting assembly code. Use get_section.
+ (default_no_function_rodata_section): Return a section rather than
+ emitting assembly code.
+ (variable_section): Use switch_to_section and get_named_section.
+ (mergeable_string_section): Return a section rather than emitting
+ assembly code. Use get_section. Make static. Don't take special
+ countermeasures for empty strings.
+ (mergeable_constant_section): Return a section rather than emitting
+ assembly code. Use get_section.
+ (default_named_section_asm_out_destructor): Use switch_to_section
+ and get_section.
+ (default_dtor_section_asm_out_destructor): Use switch_to_section.
+ (default_named_section_asm_out_constructor): Use switch_to_section
+ and get_section.
+ (default_ctor_section_asm_out_constructor): Use switch_to_section.
+ (assemble_start_function): Likewise. Set last_text_section to
+ NULL rather than no_section. Change the type of save_section.
+ (assemble_zeros, assemble_variable): Use the section flags to detect
+ whether or not a section is text.
+ (assemble_static_space): Use switch_to_section.
+ (assemble_trampoline_template): Likewise.
+ (output_constant_def_contents): Use switch_to_section and
+ get_named_section.
+ (output_constant_pool_1): Use switch_to_section. Use the section
+ flags to see whether sections contain mergeable data.
+ (init_varasm_once): Initialize section_htab instead of in_named_htab.
+ Initialize new section variables. Call TARGET_ASM_INIT_SECTIONS.
+ (default_elf_asm_named_section): Use SECTION_DECLARED to detect
+ whether a section has already been declared.
+ (default_select_section, default_elf_select_section): Return a
+ section rather than emitting assembly code.
+ (default_elf_select_section_1): Likewise. Use bss_section for
+ SECCAT_BSS if nonnull. Use get_named_section.
+ (default_select_rtx_section): Return a section rather than
+ emitting assembly code.
+ (default_elf_select_rtx_section): Likewise. Use get_named_section.
+ (file_end_indicate_exec_stack): Use switch_to_section and get_section.
+ (output_section_asm_op, switch_to_section): New functions.
+ * vmsdbgout.c (vmsdbgout_finish): Use switch_to_section and
+ get_named_section.
+
+ * doc/tm.texi: Expand the introduction to the sections documentation.
+ (TRAMPOLINE_SECTION): Document new interface.
+ (SDATA_SECTION_ASM_OP): Document new macro.
+ (READONLY_DATA_SECTION): Delete.
+ (SDATA_SECTION_ASM_OP): Document new macro.
+ (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
+ (TARGET_ASM_INIT_SECTIONS): Document new hook.
+ (TARGET_ASM_SELECT_SECTION, TARGET_ASM_FUNCTION_RODATA_SECTION)
+ (TARGET_ASM_SELECT_RTX_SECTION): Adjust for new interface.
+ (TARGET_EXCEPTION_SECTION, TARGET_EH_FRAME_SECTION): Delete.
+
+2005-12-07 Alan Modra <amodra@bigpond.net.au>
+
+ * gcc.c (init_gcc_specs): Match braces inside conditionally
+ compiled strings.
+
2005-12-06 Geoffrey Keating <geoffk@apple.com>
* config/darwin.h (TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT): New.
The results can be reproduced by building a compiler with
--enable-gather-detailed-mem-stats targetting x86-64
and compiling preprocessed combine.c or testcase from PR8632 with:
-fmem-report --param=ggc-min-heapsize=1024 --param=ggc-min-expand=1 -Ox -Q
The memory consumption summary appears in the dump after detailed listing
of the places they are allocated in. Peak memory consumption is actually
computed by looking for maximal value in {GC XXXX -> YYYY} report.
Your testing script.
More information about the Gcc-regression
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