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A recent patch increased GCC's memory consumption in some cases!
- From: gcctest at suse dot de
- To: jh at suse dot cz, gcc-regression at gcc dot gnu dot org
- Date: Sun, 25 Mar 2007 18:50:22 +0000
- Subject: A recent patch increased GCC's memory consumption in some cases!
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 empty function compilation at -O0 level:
Overall memory needed: 7410k -> 7388k
Peak memory use before GGC: 2260k
Peak memory use after GGC: 1949k
Maximum of released memory in single GGC run: 311k
Garbage: 446k -> 446k
Leak: 2283k
Overhead: 456k -> 456k
GGC runs: 3
comparing empty function compilation at -O0 -g level:
Overall memory needed: 7426k -> 7404k
Peak memory use before GGC: 2288k
Peak memory use after GGC: 1977k
Maximum of released memory in single GGC run: 311k
Garbage: 449k -> 449k
Leak: 2316k
Overhead: 461k -> 461k
GGC runs: 3
comparing empty function compilation at -O1 level:
Overall memory needed: 7510k -> 7512k
Peak memory use before GGC: 2260k
Peak memory use after GGC: 1949k
Maximum of released memory in single GGC run: 311k
Garbage: 452k -> 452k
Leak: 2286k -> 2286k
Overhead: 457k -> 457k
GGC runs: 4
comparing empty function compilation at -O2 level:
Overall memory needed: 7578k -> 7520k
Peak memory use before GGC: 2261k
Peak memory use after GGC: 1950k
Maximum of released memory in single GGC run: 311k
Garbage: 455k -> 455k
Leak: 2286k -> 2286k
Overhead: 457k -> 457k
GGC runs: 4
comparing empty function compilation at -O3 level:
Overall memory needed: 7578k -> 7520k
Peak memory use before GGC: 2261k
Peak memory use after GGC: 1950k
Maximum of released memory in single GGC run: 311k
Garbage: 455k -> 455k
Leak: 2286k -> 2286k
Overhead: 457k -> 457k
GGC runs: 4
comparing combine.c compilation at -O0 level:
Ovarall memory allocated via mmap and sbrk decreased from 23854k to 17732k, overall -34.53%
Peak amount of GGC memory still allocated after garbage collecting increased from 8826k to 8849k, overall 0.26%
Overall memory needed: 23854k -> 17732k
Peak memory use before GGC: 9307k -> 9262k
Peak memory use after GGC: 8826k -> 8849k
Maximum of released memory in single GGC run: 2623k -> 2578k
Garbage: 37695k -> 37116k
Leak: 6578k
Overhead: 5250k -> 5053k
GGC runs: 282
comparing combine.c compilation at -O0 -g level:
Ovarall memory allocated via mmap and sbrk decreased from 25830k to 19864k, overall -30.03%
Overall memory needed: 25830k -> 19864k
Peak memory use before GGC: 11115k -> 10877k
Peak memory use after GGC: 10578k -> 10509k
Maximum of released memory in single GGC run: 2597k -> 2351k
Garbage: 38229k -> 37681k
Leak: 9487k -> 9463k
Overhead: 5956k -> 5759k
GGC runs: 270 -> 269
comparing combine.c compilation at -O1 level:
Ovarall memory allocated via mmap and sbrk decreased from 43862k to 35252k, overall -24.42%
Overall memory needed: 43862k -> 35252k
Peak memory use before GGC: 19332k -> 19330k
Peak memory use after GGC: 19125k
Maximum of released memory in single GGC run: 2092k -> 2200k
Garbage: 57658k -> 56788k
Leak: 6607k -> 6607k
Overhead: 6518k -> 6311k
GGC runs: 353 -> 355
comparing combine.c compilation at -O2 level:
Ovarall memory allocated via mmap and sbrk decreased from 44114k to 38344k, overall -15.05%
Amount of memory still referenced at the end of compilation increased from 6726k to 6735k, overall 0.12%
Overall memory needed: 44114k -> 38344k
Peak memory use before GGC: 19371k
Peak memory use after GGC: 19177k
Maximum of released memory in single GGC run: 2123k -> 2170k
Garbage: 69131k -> 68981k
Leak: 6726k -> 6735k
Overhead: 8271k -> 8144k
GGC runs: 408 -> 404
comparing combine.c compilation at -O3 level:
Ovarall memory allocated via mmap and sbrk decreased from 44986k to 42680k, overall -5.40%
Peak amount of GGC memory allocated before garbage collecting increased from 19528k to 19558k, overall 0.15%
Amount of produced GGC garbage increased from 89137k to 90400k, overall 1.42%
Overall memory needed: 44986k -> 42680k
Peak memory use before GGC: 19528k -> 19558k
Peak memory use after GGC: 19259k -> 19263k
Maximum of released memory in single GGC run: 3035k -> 3644k
Garbage: 89137k -> 90400k
Leak: 6842k -> 6841k
Overhead: 11098k -> 11156k
GGC runs: 430 -> 427
comparing insn-attrtab.c compilation at -O0 level:
Ovarall memory allocated via mmap and sbrk decreased from 176314k to 102980k, overall -71.21%
Peak amount of GGC memory still allocated after garbage collecting increased from 44189k to 44728k, overall 1.22%
Overall memory needed: 176314k -> 102980k
Peak memory use before GGC: 69575k -> 68624k
Peak memory use after GGC: 44189k -> 44728k
Maximum of released memory in single GGC run: 37380k -> 36429k
Garbage: 133955k -> 130923k
Leak: 9581k
Overhead: 17418k -> 16927k
GGC runs: 216 -> 212
comparing insn-attrtab.c compilation at -O0 -g level:
Ovarall memory allocated via mmap and sbrk decreased from 177826k to 104212k, overall -70.64%
Peak amount of GGC memory still allocated after garbage collecting increased from 45456k to 45996k, overall 1.19%
Overall memory needed: 177826k -> 104212k
Peak memory use before GGC: 70736k -> 69786k
Peak memory use after GGC: 45456k -> 45996k
Maximum of released memory in single GGC run: 37380k -> 36430k
Garbage: 135178k -> 132142k
Leak: 11289k
Overhead: 17815k -> 17324k
GGC runs: 215 -> 209
comparing insn-attrtab.c compilation at -O1 level:
Ovarall memory allocated via mmap and sbrk decreased from 226034k to 147600k, overall -53.14%
Overall memory needed: 226034k -> 147600k
Peak memory use before GGC: 85946k
Peak memory use after GGC: 80068k
Maximum of released memory in single GGC run: 32274k -> 32839k
Garbage: 270335k -> 264939k
Leak: 9401k -> 9401k
Overhead: 28644k -> 27688k
GGC runs: 232 -> 228
comparing insn-attrtab.c compilation at -O2 level:
Ovarall memory allocated via mmap and sbrk decreased from 260930k to 197776k, overall -31.93%
Overall memory needed: 260930k -> 197776k
Peak memory use before GGC: 87233k
Peak memory use after GGC: 80138k
Maximum of released memory in single GGC run: 30047k -> 30044k
Garbage: 304277k -> 300339k
Leak: 9399k -> 9399k
Overhead: 34094k -> 33283k
GGC runs: 252 -> 244
comparing insn-attrtab.c compilation at -O3 level:
Ovarall memory allocated via mmap and sbrk decreased from 260962k to 197308k, overall -32.26%
Overall memory needed: 260962k -> 197308k
Peak memory use before GGC: 87247k
Peak memory use after GGC: 80152k
Maximum of released memory in single GGC run: 30108k -> 30105k
Garbage: 304937k -> 301008k
Leak: 9404k -> 9404k
Overhead: 34295k -> 33486k
GGC runs: 255 -> 245
comparing Gerald's testcase PR8361 compilation at -O0 level:
Ovarall memory allocated via mmap and sbrk decreased from 152924k to 147375k, overall -3.77%
Overall memory needed: 152924k -> 147375k
Peak memory use before GGC: 90241k
Peak memory use after GGC: 89347k
Maximum of released memory in single GGC run: 17774k
Garbage: 210393k -> 207957k
Leak: 49212k -> 49207k
Overhead: 24724k -> 23912k
GGC runs: 414 -> 410
comparing Gerald's testcase PR8361 compilation at -O0 -g level:
Ovarall memory allocated via mmap and sbrk decreased from 174476k to 165179k, overall -5.63%
Overall memory needed: 174476k -> 165179k
Peak memory use before GGC: 102847k
Peak memory use after GGC: 101829k
Maximum of released memory in single GGC run: 18128k
Garbage: 216926k -> 214473k
Leak: 72526k -> 72521k
Overhead: 30621k -> 29809k
GGC runs: 387 -> 385
comparing Gerald's testcase PR8361 compilation at -O1 level:
Ovarall memory allocated via mmap and sbrk decreased from 151693k to 141831k, overall -6.95%
Overall memory needed: 151693k -> 141831k
Peak memory use before GGC: 101826k -> 101812k
Peak memory use after GGC: 100807k -> 100801k
Maximum of released memory in single GGC run: 17236k
Garbage: 346851k -> 344728k
Leak: 49932k -> 49940k
Overhead: 31040k -> 30465k
GGC runs: 532 -> 528
comparing Gerald's testcase PR8361 compilation at -O2 level:
Ovarall memory allocated via mmap and sbrk decreased from 152849k to 143887k, overall -6.23%
Overall memory needed: 152849k -> 143887k
Peak memory use before GGC: 102425k -> 102422k
Peak memory use after GGC: 101409k -> 101406k
Maximum of released memory in single GGC run: 17233k
Garbage: 375773k -> 375688k
Leak: 50979k -> 51028k
Overhead: 35069k -> 34747k
GGC runs: 567 -> 565
comparing Gerald's testcase PR8361 compilation at -O3 level:
Reference run miss the results so I can't compare, sadly
Overall memory needed: 104461k -> 146179k
Peak memory use before GGC: 90658k -> 104266k
Peak memory use after GGC: 89760k -> 103221k
Maximum of released memory in single GGC run: 17610k
Garbage: 0k -> 394794k
Leak: 0k -> 51314k
Overhead: 0k -> 36347k
GGC runs: 355 -> 574
comparing PR rtl-optimization/28071 testcase compilation at -O0 level:
Ovarall memory allocated via mmap and sbrk decreased from 346054k to 244787k, overall -41.37%
Peak amount of GGC memory allocated before garbage collecting increased from 80790k to 80960k, overall 0.21%
Peak amount of GGC memory still allocated after garbage collecting increased from 58528k to 58699k, overall 0.29%
Overall memory needed: 346054k -> 244787k
Peak memory use before GGC: 80790k -> 80960k
Peak memory use after GGC: 58528k -> 58699k
Maximum of released memory in single GGC run: 43963k -> 44133k
Garbage: 145522k -> 142148k
Leak: 7611k -> 7611k
Overhead: 26212k -> 24559k
GGC runs: 74 -> 79
comparing PR rtl-optimization/28071 testcase compilation at -O0 -g level:
Ovarall memory allocated via mmap and sbrk decreased from 346942k to 245591k, overall -41.27%
Peak amount of GGC memory allocated before garbage collecting increased from 81435k to 81606k, overall 0.21%
Peak amount of GGC memory still allocated after garbage collecting increased from 59174k to 59345k, overall 0.29%
Overall memory needed: 346942k -> 245591k
Peak memory use before GGC: 81435k -> 81606k
Peak memory use after GGC: 59174k -> 59345k
Maximum of released memory in single GGC run: 43951k -> 44122k
Garbage: 145803k -> 142367k
Leak: 9378k -> 9379k
Overhead: 26708k -> 25054k
GGC runs: 84 -> 89
comparing PR rtl-optimization/28071 testcase compilation at -O1 level:
Ovarall memory allocated via mmap and sbrk decreased from 312430k to 244352k, overall -27.86%
Overall memory needed: 312430k -> 244352k
Peak memory use before GGC: 85020k -> 84278k
Peak memory use after GGC: 74845k
Maximum of released memory in single GGC run: 35652k -> 36149k
Garbage: 225118k -> 221623k
Leak: 20854k -> 20854k
Overhead: 32048k -> 30444k
GGC runs: 78 -> 81
comparing PR rtl-optimization/28071 testcase compilation at -O2 level:
Ovarall memory allocated via mmap and sbrk decreased from 562846k to 497508k, overall -13.13%
Overall memory needed: 562846k -> 497508k
Peak memory use before GGC: 79831k
Peak memory use after GGC: 74845k
Maximum of released memory in single GGC run: 33317k -> 33439k
Garbage: 235003k -> 228658k
Leak: 20944k -> 20944k
Overhead: 34675k -> 32526k
GGC runs: 88 -> 91
comparing PR rtl-optimization/28071 testcase compilation at -O3 -fno-tree-pre -fno-tree-fre level:
Reference run miss the results so I can't compare, sadly
Overall memory needed: 2624494k -> 1478460k
Peak memory use before GGC: 201747k -> 201748k
Peak memory use after GGC: 190209k
Maximum of released memory in single GGC run: 80993k -> 80671k
Garbage: 0k -> 362842k
Leak: 0k -> 46310k
Overhead: 0k -> 46464k
GGC runs: 68 -> 71
Head of the ChangeLog is:
--- /usr/src/SpecTests/sandbox-britten-memory/x86_64/mem-result/ChangeLog 2007-03-24 02:27:20.000000000 +0000
+++ /usr/src/SpecTests/sandbox-britten-memory/gcc/gcc/ChangeLog 2007-03-25 16:40:57.000000000 +0000
@@ -1,3 +1,600 @@
+2007-03-25 David Edelsohn <edelsohn@gnu.org>
+
+ * config/rs6000/rs6000.c (rs6000_emit_prologue): Always clobber LR
+ in SImode for save_world.
+ * config/rs6000/altivec.md (save_world, restore_world): Convert to
+ LR hard reg.
+
+2007-03-25 Dorit Nuzman <dorit@il.ibm.com>
+
+ PR tree-optimization/30784
+ * fold-const.c (fold_ternary): Handle CONSTRUCTOR in case
+ BIT_FIELD_REF.
+
+2007-03-25 Revital Eres <eres@il.ibm.com>
+
+ * tree-if-conv.c (if_convertible_gimple_modify_stmt_p):
+ Fold movement_possibility function into it.
+
+2007-03-25 David Edelsohn <edelsohn@gnu.org>
+
+ * config/rs6000/darwin.md (load_macho_picbase): Ignore operand 0.
+ (load_macho_picbase_{si,di}): Convert to LR hard reg.
+ (call_indirect_nonlocal_darwin64): Same.
+ (call_nonlocal_darwin64): Same.
+ (call_value_indirect_nonlocal_darwin64): Same.
+ (call_value_nonlocal_darwin64): Same.
+ (sibcall_nonlocal_darwin64): Same.
+ (sibcall_value_nonlocal_darwin64): Same.
+ (sibcall_symbolic_64): Same.
+ (sibcall_value_symbolic_64): Same.
+ * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Remove
+ LR pseudo.
+ (rs6000_emit_load_toc_table): Same.
+ * config/rs6000/altivec.md (restore_world): Convert to LR hard reg.
+ * config/rs6000/rs6000.md (mulh_call): Convert to LR hard reg.
+ (mull_call): Same.
+ (divss_call): Same.
+ (divus_call): Same.
+ (quoss_call): Same.
+ (quous_call): Same.
+ (load_toc_v4_pic_si): Same
+ (load_toc_v4_PIC_1): Same.
+ (load_toc_v4_PIC_1b): Same.
+ (call_indirect_aix{32,64}): Same.
+ (call_value_indirect_aix{32,64}): Same.
+ (call): Same.
+ (call_value): Same.
+ (call_local{32,64}): Same.
+ (call_value_local{32,64}): Same.
+ (call_indirect_nonlocal_aix{32,64}): Same.
+ (call_nonlocal_aix{32,64}): Same.
+ (call_value_indirect_nonlocal_aix{32,64}): Same.
+ (call_value_nonlocal_aix{32,64}): Same.
+ (call_indirect_nonlocal_sysv<mode>): Same.
+ (call_nonlocal_sysv<mode>): Same.
+ (call_value_indirect_nonlocal_sysv<mode>): Same.
+ (call_value_nonlocal_sysv<mode>): Same.
+ (sibcall): Same.
+ (sibcall_local{32,64}): Same.
+ (sibcall_value_local{32,64}): Same.
+ (sibcall_nonlocal_aix{32,64}): Same.
+ (sibcall_value_nonlocal_aix{32,64}): Same.
+ (sibcall_nonlocal_sysv<mode>): Same.
+ (sibcall_value): Same.
+ (sibcall_value_nonlocal_sysv<mode>): Same.
+
+2007-03-24 Paul Brook <paul@codesourcery.com>
+
+ * config/arm/lib1funcs.asm (div0): Use ARM_FUNC_START and do_push.
+ * config/arm/linux-eabi.h: Remove legacy syscall hack.
+
+2007-03-24 Richard Henderson <rth@redhat.com>
+
+ * config/ia64/constraints.md: New file.
+ * config/ia64/predicates.md: Replace CONST_OK_FOR_? with
+ satisfies_constraint_?.
+ * config/ia64/ia64.c (ia64_move_ok, ia64_legitimate_constant_p,
+ ia64_reload_gp, spill_restore_mem, ia64_expand_prologue,
+ ia64_expand_epilogue, ia64_split_return_addr_rtx, ia64_rtx_costs,
+ ia64_output_mi_thunk): Likewise.
+ (ia64_const_ok_for_letter_p): Remove.
+ (ia64_const_double_ok_for_letter_p): Remove.
+ (ia64_extra_constraint): Remove.
+ * config/ia64/ia64.h (REG_CLASS_FROM_LETTER): Remove.
+ (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L,
+ CONST_OK_FOR_M, CONST_OK_FOR_N, CONST_OK_FOR_O, CONST_OK_FOR_P,
+ CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_G,
+ CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT,
+ EXTRA_MEMORY_CONSTRAINT): Remove.
+ * config/ia64/ia64.md: Include constriants.md. Replace
+ CONST_OK_FOR_? with satisfies_constraint_?.
+
+2007-03-23 Michael Meissner <michael.meissner@amd.com>
+ H.J. Lu <hongjiu.lu@intel.com>
+
+ * config/dfp-bit.h (DPD_BID_NAME): New macro to give either the
+ DPD or BID name.
+ (name macros): Use DPD_BID_NAME to convert names properly.
+
+ * optabs.c (DECIMAL_PREFIX): Prefix string to use for the current
+ decimal floating point format.
+ (init_floating_libfuncs): Change decimal functions so that they
+ have a "bid_" prefix if the decimal system uses the BID format,
+ and "dpd_" prefix if the decimal system uses the DPD format.
+ (init_interclass_conv_libfuncs): Ditto.
+ (init_intraclass_conv_libfuncs): Ditto.
+
+ * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
+ using the BID format.
+
+ * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
+ whether we are using the BID decimal format.
+ * configure: Regenerate.
+
+ * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
+ the compiler has decimal floating point enabled. Define
+ __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
+ instead of DPD.
+
+ * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
+ using the BID format.
+
+ * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
+ whether we are using the BID decimal format.
+ * configure: Regenerate.
+
+ * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
+ the compiler has decimal floating point enabled. Define
+ __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
+ instead of DPD.
+
+ * doc/install.texi (--enable-decimal-float): Document BID and DPD
+ options, and that it is enabled for i386/x86_64 systems.
+
+ * Makefile.in (enable_decimal_float): New.
+ (DECNUMFMT): New.
+ (DECNUMINC): Add -I$(DECNUMFMT).
+ (DECNUM_H): Mov decimal32.h, decimal64.h and decimal128.h
+ to $(DECNUMFMT) from $(DECNUM).
+
+ * configure.ac: Support * --enable-decimal-float={no,yes,bid,dpd}.
+ Substitute enable_decimal_float.
+ * configure: Regenerated.
+
+ PR other/30529
+ * config/dfp-bit.c (__dec_byte_swap): Use uint32_t instead of
+ unsigned long.
+
+ * configure.ac: Enable decimal float for x86_64-*-linux*.
+ * configure: Regenerated.
+
+ PR other/30530
+ * dfp.c (decimal_real_arithmetic): Use decimal128FlipSign and
+ decimal128ClearSign to flip and clear the sign bit in decimal128.
+ (decimal_real_maxval): Set decimal128SetSign to set the sign
+ bit in decimal128.
+
+2007-03-23 Ian Lance Taylor <iant@google.com>
+
+ * fold-const.c (fold_binary): Correct warning for X - c >= X.
+
+2007-03-23 Ian Lance Taylor <iant@google.com>
+
+ * tree-dump.c (dump_files): Correct comment.
+
+2007-03-23 Ian Lance Taylor <iant@google.com>
+
+ * tree-vrp.c (operand_less_p): Ignore fold overflow warnings.
+
+2007-03-23 Steven Bosscher <steven@gcc.gnu.org>
+
+ * tracer.c (tracer): Don't take FLAGS argument. Assert we are
+ in cfglayout mode. Don't go into and out of cfglayout mode.
+ Link the blocks in the order of the constructed traces.
+ (rest_of_handle_tracer): Adjust call to tracer.
+ * loop-init.c (rtl_loop_init): Assert we are in cfglayout mode.
+ Don't go into cfglayout mode.
+ (rtl_loop_done): Don't go out of cfglayout mode.
+ * cfglayout.c (relink_block_chain): New function, split out from...
+ (fixup_reorder_chain): ...here. Remove redundant checking.
+ (cfg_layout_finalize): Don't clear the header, footer, and aux
+ fields here, move the code to do so to relink_block_chain. Likewise
+ for free_original_copy_tables.
+ * rtl.h (tracer): Update prototype.
+ * bb-reorder.c (reorder_basic_blocks): Don't take FLAGS argument.
+ Assert we are in cfglayout mode. Don't go into and out of cfglayout
+ mode. Use relink_block_chain to serialize the CFG according to the
+ new basic block order. Move targetm.cannot_modify_jumps_p check from
+ here...
+ (gate_handle_reorder_blocks): ...to here.
+ (duplicate_computed_gotos): Move targetm.cannot_modify_jumps_p check
+ from here...
+ (gate_duplicate_computed_gotos): ...to here.
+ (rest_of_handle_reorder_blocks): Don't see if anything has changed,
+ something always changes when going into and out of cfglayout mode.
+ Perform an expensive cfg cleanup while going into cfglayout mode.
+ Always update liveness information on HAVE_conditional_execution
+ targets. Reserialize the basic blocks and go out of cfglayout mode.
+ * reg-stack.c: Include cfglayout.h.
+ (rest_of_handle_stack_regs): Go into and out of cfglayout mode around
+ the call to reorder_basic_blocks.
+ * basic-block.h (reorder_basic_blocks): Update prototype.
+ (relink_block_chain): New prototype.
+ * passes.c (pass_outof_cfg_layout_mode): Move after cse2.
+
+2007-03-23 Joseph Myers <joseph@codesourcery.com>
+
+ * config/mips/mips.md (type, hazard, *movdi_32bit,
+ *movdi_gp32_fp64, *movdi_64bit, *movsi_internal, movcc,
+ *movhi_internal, *movqi_internal, *movsf_hardfloat,
+ *movdf_hardfloat_64bit, *movdf_hardfloat_32bit, *movdf_softfloat,
+ movv2sf_hardfloat_64bit, load_df_low, load_df_high, store_df_high,
+ mthc1, mfhc1): Change xfer instruction type to mfc and mtc, as
+ applicable.
+ (movcc): Change first xfer to multi.
+ * config/mips/24k.md, config/mips/4100.md, config/mips/4300.md,
+ config/mips/5000.md, config/mips/5400.md, config/mips/5500.md,
+ config/mips/5k.md, config/mips/7000.md, config/mips/9000.md,
+ config/mips/generic.md: Change reservations using "xfer" to use
+ "mfc,mtc".
+ * config/mips/sb1.md (ir_sb1_mtxfer): Use "mtc" instead of
+ using match_operand.
+ (ir_sb1_mfxfer): Use "mfc" instead of using match_operand.
+ * config/mips/sr71k.md (ir_sr70_xfer_from): Use "mfc" instead of
+ examining mode.
+ (ir_sr70_xfer_to): Use "mtc" instead of examining mode.
+
+2007-03-22 Richard Henderson <rth@redhat.com>
+
+ * config/i386/i386.c: Remove unnecessary function declarations.
+ Move targetm definition, and all related macros, to the end of
+ the file. Resort some functions to put definitions before uses.
+ (ix86_attribute_table): Make static. Move to end of file.
+ (ix86_gimplify_va_arg): Make static.
+
+2007-03-22 Richard Henderson <rth@redhat.com>
+
+ * config/i386/i386.c (ix86_function_regparm): Early exit for 64-bit;
+ don't increase local_regparm with force_align_arg_pointer check.
+ (ix86_function_sseregparm): Assert 32-bit.
+ (type_has_variadic_args_p): New.
+ (ix86_return_pops_args): Early exit for 64-bit. Reindent; use
+ type_has_variadic_args_p.
+ (ix86_function_arg_regno_p): Use == 0 instead of ! test for eax.
+ (init_cumulative_args): Remove TARGET_DEBUG_ARG. Remove zero_cum;
+ use memset instead. Do maybe_vaarg check first; skip attribute
+ tests if true; skip attribute tests for 64-bit.
+ (construct_container): Remove TARGET_DEBUG_ARG.
+ (function_arg_advance_32, function_arg_advance_64): Split out ...
+ (function_arg_advance): ... from here.
+ (function_arg_32, function_arg_64): Split out ...
+ (function_arg): ... from here.
+ (ix86_pass_by_reference): Tidy.
+ (ix86_function_value_regno_p): Rearrange w/ switch on regno.
+ (function_value_32): New, from parts of ix86_function_value
+ and ix86_value_regno.
+ (function_value_64): New, from parts of ix86_function_value
+ and ix86_libcall_value.
+ (ix86_function_value_1): New.
+ (ix86_function_value, ix86_libcall_value): Use it.
+ (return_in_memory_32, return_in_memory_64): Split out ...
+ (ix86_return_in_memory): ... from here.
+ (ix86_struct_value_rtx): Skip for 64-bit.
+ (ix86_libcall_value, ix86_value_regno): Remove.
+ (setup_incoming_varargs_64): Split out ...
+ (ix86_setup_incoming_varargs): ... from here.
+ (ix86_va_start): Remove TARGET_DEBUG_ARG.
+ (legitimate_address_p, legitimize_address): Remove TARGET_DEBUG_ADDR.
+ * config/i386/i386-protos.h (ix86_function_value): Remove.
+ * config/i386/i386.opt (TARGET_DEBUG_ADDR, TARGET_DEBUG_ARG): Remove.
+
+2007-03-22 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR other/23572
+ * c-lex.c (interpret_float): On overflow, emit pedantic warning if
+ infinities not supported, otherwise emit warning if -Woverflow. On
+ underflow, emit warning if -Woverflow.
+ * real.c (real_from_string): Return -1 if underflow, +1 if overflow
+ and 0 otherwise.
+ * real.h (real_from_string): Update declaration
+
+2007-03-22 Kai Tietz <kai.tietz@onevision.com>
+ Richard Henderson <rth@redhat.com>
+
+ * defaults.h (OUTGOING_REG_PARM_STACK_SPACE): Provide default.
+ * calls.c (compute_argument_block_size, expand_call,
+ emit_library_call_value_1): Don't ifdef OUTGOING_REG_PARM_STACK_SPACE.
+ * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
+ * function.c (STACK_DYNAMIC_OFFSET): Likewise.
+ * doc/tm.texi (OUTGOING_REG_PARM_STACK_SPACE): Update.
+ * config/alpha/unicosmk.h, config/bfin/bfin.h, config/iq2000/iq2000.h,
+ config/mips/mips.h, config/mn10300/mn10300.h, config/mt/mt.h,
+ config/pa/pa.h, config/rs6000/rs6000.h, config/score/score.h,
+ config/spu/spu.h, config/v850/v850.h (OUTGOING_REG_PARM_STACK_SPACE):
+ Set to 1.
+
+2007-03-22 Joseph Myers <joseph@codesourcery.com>
+
+ * c-incpath.c (add_sysroot_to_chain): New.
+ (merge_include_chains): Add sysroot argument. Call
+ add_sysroot_to_chain if sysrooted.
+ (register_include_chains): Update call to merge_include_chains.
+ * doc/cppopts.texi: Document use of '=' in include directory
+ arguments.
+
+2007-03-22 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.md (cmp<mode>): Rename from cmpsf and cmpdf.
+ Macroize expander using SSEMODEF mode macro. Use SSE_FLOAT_MODE_P.
+ (*cmpfp_<mode>): Rename from *cmpfp_sf and *cmpfp_df. Macroize
+ insn pattern using X87MODEF12 mode macro.
+
+2007-03-21 Seongbae Park <seongbae.park@gmail.com>
+
+ * regmove.c (regmove_optimize): Use reg_mentioned_p
+ instead of reg_overlap_mentioned_p for DST.
+
+2007-03-21 Mike Stump <mrs@apple.com>
+
+ * c.opt: Fixup for Objective-C/C++.
+
+2007-03-21 Steve Ellcey <sje@cup.hp.com>
+
+ * explow.c (convert_memory_address): Fold memory reference when
+ POINTERS_EXTEND_UNSIGNED < 0
+
+2007-03-21 Richard Henderson <rth@redhat.com>
+
+ PR target/31245
+ * config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
+ * config/i386/mmintrin.h (__m64): Likewise.
+ * config/i386/xmmintrin.h (__m128): Likewise.
+
+2007-03-21 Richard Sandiford <richard@codesourcery.com>
+
+ * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options.
+ (VXWORKS_OS_CPP_BUILTINS): Define.
+ * config/i386/vxworks.h (VXWORKS_CPU_DEFINE): Fold into...
+ (TARGET_OS_CPP_BUILTINS): ...here. Use VXWORKS_OS_CPP_BUILTINS.
+
+2007-03-21 Richard Sandiford <richard@codesourcery.com>
+
+ * rtl.h (constant_pool_reference_p): Delete.
+ (find_constant_src): Declare.
+ * rtlanal.c (find_constant_src): New function.
+ * simplify-rtx.c (constant_pool_reference_p): Delete.
+ * config/i386/i386.md: Use find_constant_src instead of
+ constant_pool_reference_p/avoid_constant_pool_reference pairs.
+
+2007-03-21 Richard Sandiford <richard@codesourcery.com>
+
+ * doc/invoke.texi (-fpie, -fPIE): Document __pie__ and __PIE__.
+ * c-cppbuiltin.c (c_cpp_builtins): Define them.
+
+2007-03-20 Mark Mitchell <mark@codesourcery.com>
+
+ * config/arm/elf.h (TARGET_ASM_DESTRUCTOR): Define.
+ * config/arm/arm.c (arm_elf_asm_cdtor): New function.
+ (arm_elf_asm_constructor): Use it.
+ (arm_elf_asm_destructor): New function.
+
+2007-03-20 Bernd Schmidt <bernd.schmidt@analog.com>
+
+ * jump.c (mark_jump_label): Treat SEQUENCE specially.
+
+2007-03-20 Nathan Sidwell <nathan@codesourcery.com>
+
+ * config/vxlib.c (tls_delete_hook): Use TCB for kernel tasks.
+
+2007-03-19 Andrew Haley <aph@redhat.com>
+
+ PR tree-optimization/31264
+ * tree-vrp.c (register_edge_assert_for_1): Don't look though
+ VIEW_CONVERT_EXPRs.
+
+2007-03-19 Paolo Bonzini <bonzini@gnu.org>
+
+ PR rtl-optimization/30907
+ * fwprop.c (forward_propagate_into): Never propagate inside a loop.
+ (fwprop_init): Always call loop_optimizer_initialize.
+ (fwprop_done): Always call loop_optimizer_finalize.
+ (fwprop): We always have loop info now.
+ (gate_fwprop_addr): Remove.
+ (pass_fwprop_addr): Use gate_fwprop as gate.
+
+ PR rtl-optimization/30841
+ * df-problems.c (df_ru_local_compute, df_rd_local_compute,
+ df_chain_alloc): Call df_reorganize_refs unconditionally.
+ * df-scan.c (df_rescan_blocks, df_reorganize_refs): Change
+ refs_organized to refs_organized_size.
+ (df_ref_create_structure): Use refs_organized_size instead of
+ bitmap_size if refs had been organized, and keep refs_organized_size
+ up-to-date.
+ * df.h (struct df_ref_info): Change refs_organized to
+ refs_organized_size.
+ (DF_DEFS_SIZE, DF_USES_SIZE): Use refs_organized_size instead of
+ bitmap_size.
+
+2007-03-19 Mark Mitchell <mark@codesourcery.com>
+
+ * except.c (output_function_exception_table): Do not reference the
+ EH personality routine for functions that do not require an
+ exception table.
+
+2007-03-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/30762
+ * c-typeck.c (convert_for_assignment): Call comptypes for
+ RECORD_TYPE or UNION_TYPE.
+
+ PR inline-asm/30505
+ * reload1.c (reload): Do invalid ASM checking after
+ cleanup_subreg_operands.
+
+2007-03-19 Jeff Law <law@redhat.com>
+
+ * tree-cfg.c (find_taken_edge): Tighten conditions for
+ optimizing computed gotos.
+
+2007-03-19 Michael Matz <matz@suse.de>
+
+ * builtins.c (expand_builtin_sync_operation,
+ expand_builtin_compare_and_swap,
+ expand_builtin_lock_test_and_set): Care for extending CONST_INTs
+ correctly.
+
+ * config/i386/sync.md (sync_double_compare_and_swapdi_pic,
+ sync_double_compare_and_swap_ccdi_pic): Use "SD" as constraint
+ for operand 3.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * doc/tm.texi: Add brackets around the return type of
+ TARGET_SECONDARY_RELOAD.
+
+2007-03-19 Andrew Pinski <andrew_pinski@playstation.sony.com>
+ Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31254
+ * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
+ Use handled_component_p () where appropriate. Continue
+ propagating into the rhs if we propagated into an INDIRECT_REF
+ on the lhs.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * config/s390/s390.md (op_type attribute): RRR instruction type added.
+ (FP, DFP, SD_SF, DD_DF, TD_TF): New mode macros.
+ (xde, xdee): Mode attributes adjusted to support DFP modes.
+ (RRer, f0, op1, Rf, bt, bfp, HALF_TMODE): New mode attributes added.
+ ("cmp<mode>", "*cmp<mode>_css_0", "*cmp<mode>_ccs", TF move splitters,
+ DF move splitters, "floatdi<mode>2", "add<mode>3", "*add<mode>3",
+ "*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3", "*sub<mode>3",
+ "*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3", "*mul<mode>3",
+ "div<mode>3", "*div<mode>3", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
+ "*negabs<mode>2_nocc", "copysign<mode>3"): Adjusted to support DFP
+ numbers.
+ ("*movtf_64", "*movtf_31", "*movdf_64dfp", "*movdf_64", "*movdf_31",
+ "movsf"): Insn definitions removed.
+ ("*mov<mode>_64", "*mov<mode>_31", "mov<mode>", "*mov<mode>_64dfp",
+ "*mov<mode>_64", "*mov<mode>_31", "fix_trunc<DFP:mode>di2",
+ "trunctddd2", "truncddsd2", "extendddtd2", "extendsddd2"): Insn
+ definitions added.
+ ("fixuns_truncdddi2", "fixuns_trunctddi2", "mov<mode>",
+ "reload_in<mode>", "reload_out<mode>"): Expander added.
+ ("movtf", "movdf", "reload_outtf", "reload_outdf", "reload_intf"):
+ Expander removed.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * config/s390/s390.md: Only non-functional changes. Renamed
+ FPR mode macro to BFP all over the file.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * config/s390/s390.md (UNSPEC_COPYSIGN): New constant.
+ (op_type attribute): RRF instruction type added.
+ (fT0): New mode attribute.
+ ("*movdi_64dfp", "*movdf_64dfp", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
+ "*negabs<mode>2_nocc", "copysign<mode>3"): Insn definitions added.
+ * config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Due to a new instruction
+ no secondary memory is needed when moving DFmode values between GPRs
+ and FPRs.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * config/s390/s390.opt ("mhard-float", "msoft-float"): Bit value
+ inverted and documentation adjusted.
+ ("mhard-dfp", "msoft-dfp"): New options.
+ * config/s390/s390.c (s390_handle_arch_option): New architecture
+ switch: z9-ec.
+ (override_options): Sanity checks for the new options added.
+ * config.gcc: New architecture switch: z9-ec.
+ * config/s390/s390.h (processor_flags): PF_DFP added.
+ (TARGET_CPU_DFP, TARGET_DFP): Macro definitions added.
+ (TARGET_DEFAULT): Due to the s390.opt changes hard float is enabled
+ when the bit is NOT set so remove it from the defaults.
+
+2007-03-19 Andreas Krebbel <krebbel1@de.ibm.com>
+
+ * genemit.c (main): Print include statement for dfp.h.
+ * dfp.h (decimal_real_arithmetic): Hide prototype if tree_code enum
+ is not available.
+
+2007-03-19 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/t-elfmulti (EXTRA_MULTILIB_PARTS): Do not define here.
+
+2007-03-19 Kaz Kojima <kkojima@gcc.gnu.org>
+
+ PR target/31022
+ * config/sh/sh.c (sh_adjust_cost): Use the result of single_set
+ instead of PATTERN.
+
+2007-03-18 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ * pa.c (output_deferred_plabels, output_bb, output_millicode_call,
+ attr_length_call, output_call, output_indirect_call): Cleanup
+ formatting of targetm calls.
+
+2007-03-19 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/cris.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define to 1.
+
+2007-03-18 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ * pa.md: Add fpstore_load and store_fpload instruction types. Provide
+ reservation, bypass and anti-bypass descriptions for these instructions.
+ Update move patterns.
+ * pa.c (hppa_fpstore_bypass_p): Check for both TYPE_FPSTORE_LOAD and
+ TYPE_FPSTORE.
+
+2007-03-18 Dorit Nuzman <dorit@il.ibm.com>
+
+ * tree-vect-transform.c (get_initial_def_for_induction): Replace
+ GET_MODE_NUNITS with TYPE_VECTOR_SUBPARTS.
+ (get_initial_def_for_reduction): Likewise.
+
+2007-03-16 Daniel Berlin <dberlin@dberlin.org>
+
+ Fix PR tree-optimization/29922
+ * tree-ssa-pre.c (bb_bitmap_sets): Remove RVUSE_* members.
+ (get_representative): Removed.
+ (value_dies_in_block_x): Update for rvuse removal.
+ (valid_in_sets): Update for renaming of vuses_dies_in_block_x.
+ (compute_antic_aux): Handle when PHI nodes appear in
+ non-single-successors.
+ (dump_bitmap_of_names): Removed.
+ (compute_antic_safe): Renamed and removed rvuse calculation.
+ Calculate only antic safe.
+ (insert_into_preds_of_block): Remove assert.
+ (execute_pre): Update for renamed functions.
+ (defer_or_phi_translate_block): New function.
+
+2007-03-17 Kazu Hirata <kazu@codesourcery.com>
+
+ * config/arm/arm.c, config/arm/thumb2.md, config/m68k/m68k.c,
+ config/spu/spu.c, omega.h, passes.c, predict.c: Fix comment
+ typos.
+ * doc/cpp.texi, doc/extend.texi, doc/invoke.texi: Fix typos.
+ Follow spelling conventions.
+
+ * tree-data-ref.h: Remove the prototype for analyze_array.
+
+2007-03-17 Dorit Nuzman <dorit@il.ibm.com>
+
+ PR tree-optimization/31041
+ * tree-vect-transform.c (get_initial_def_for_induction): Call
+ force_gimple_operand.
+
+2007-03-17 Olga Golovanevsky <olga@il.ibm.com>
+
+ * ipa-type-escape.c (look_for_casts) : Revert code to use
+ handled_component_p due to ada test a-numaux.adb.
+
+2007-03-17 Kazu Hirata <kazu@codesourcery.com>
+
+ * final.c (final_scan_insn): Alter the condition of a
+ conditional trap if we have nonstandard CC.
+
+2007-03-16 Alexandre Oliva <aoliva@redhat.com>
+
+ * configure.ac: Remove excess quoting from asm line 0 test.
+ * configure: Rebuilt.
+
+2007-03-16 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ * doc/invoke.texi (-Wconversion): Document warnings specific to C++.
+ * c-common.c (convert_and_check): Move warning logic to...
+ (warnings_for_convert_and_check): ...here. Define.
+ * c-common.h (warnings_for_convert_and_check): Declare.
+
+2007-03-16 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ * pa.c (attr_length_call): Partially revert change of 2007-03-09.
+ (output_call): Likewise.
+
2007-03-16 Richard Sandiford <richard@codesourcery.com>
* config/vxworks.h (SUPPORTS_INIT_PRIORITY): Define.
--- /usr/src/SpecTests/sandbox-britten-memory/x86_64/mem-result/ChangeLog.cp 2007-03-24 02:26:21.000000000 +0000
+++ /usr/src/SpecTests/sandbox-britten-memory/gcc/gcc/cp/ChangeLog 2007-03-25 02:16:30.000000000 +0000
@@ -1,3 +1,40 @@
+2007-03-22 Mark Mitchell <mark@codesourcery.com>
+
+ * cp-tree.h (current_tempalte_parms): Improve documentation.
+ * pt.c (current_template_args): Likewise.
+
+ PR c++/30863
+ * parser.c (cp_parser_parse_and_diagnose_invalid_type_name): Do
+ not consume tokens when failing.
+
+2007-03-22 Jim Wilson <wilson@specifix.com>
+ Mark Mitchell <mark@codesourcery.com>
+
+ PR c++/31273
+ * call.c (standard_conversion): Use type_decays_to. Keep FCODE
+ consistent with FROM.
+
+2007-03-22 Gabriel Dos Reis <gdr@integrable-solutions.net>
+
+ * error.c (dump_expr): Handle dependent names that designate types.
+ * cxx-pretty-print.c (pp_cxx_unqualified_id): Handle TYPENAME_TYPE.
+
+2007-03-17 Kazu Hirata <kazu@codesourcery.com>
+
+ * cp-tree.def, parser.c, pt.c: Fix comment typos.
+
+2007-03-16 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ * cvt.c (cp_convert_and_check) : Define.
+ * cp-tree.h (cp_convert_and_check): Declare.
+ * call.c (convert_conversion_warnings): Rename to
+ conversion_null_warnings. The warning for floating-point to
+ integer is handled by convert_and_check in convert_like_real.
+ (convert_like_real): convert_conversion_warnings was renamed as
+ conversion_null_warnings.
+ * typeck.c (build_binary_op): Use cp_convert_and_check to warn for
+ overflow and changes of value during conversion.
+
2007-03-15 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR c++/30891
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.