gcc gcc/ChangeLog gcc/ChangeLog.RA gcc/Makefil ...
dberlin@gcc.gnu.org
dberlin@gcc.gnu.org
Thu Aug 16 07:51:00 GMT 2001
CVSROOT: /cvs/gcc
Module name: gcc
Branch: new-regalloc-branch
Changes by: dberlin@gcc.gnu.org 2001-08-16 07:51:25
Modified files:
gcc : ChangeLog ChangeLog.RA Makefile.in aclocal.m4
alias.c basic-block.h bb-reorder.c builtins.c
c-common.c c-decl.c c-dump.c c-lex.c c-parse.in
c-pragma.c c-semantics.c c-typeck.c calls.c
cbitmap.c combine.c config.gcc config.in
configure configure.in cpperror.c cppexp.c
cppfiles.c cpphash.h cppinit.c cpplex.c
cpplib.c cpplib.h cppmacro.c cppmain.c
cppspec.c cse.c cselib.c dbxout.c dbxout.h
debug.c debug.h defaults.h df.c df.h
dominance.c dwarf2out.c dwarf2out.h dwarfout.c
emit-rtl.c except.c expr.c expr.h final.c
flow.c gcc.c gcse.c genattrtab.c haifa-sched.c
integrate.c jump.c local-alloc.c loop.c
optabs.c output.h params.def params.h predict.c
predict.def predict.h profile.c ra.c recog.c
regclass.c regs.h reload.c reload.h reload1.c
resource.c rtl.c rtl.h rtlanal.c sched-deps.c
sched-ebb.c sched-int.h sched-rgn.c sdbout.c
simplify-rtx.c target-def.h target.h toplev.c
tree.c tree.def tree.h unwind-dw2-fde.c
unwind-dw2.c unwind-pe.h varasm.c varray.h
gcc/ch : ChangeLog Makefile.in grant.c lex.c
gcc/config : darwin.c elfos.h freebsd.h linux.h nextstep.h
openbsd.h psos.h
gcc/config/a29k: a29k.c a29k.h
gcc/config/alpha: alpha.c alpha.h alpha.md elf.h linux-elf.h
osf.h vms.h
gcc/config/arm : arm.c arm.md coff.h conix-elf.h elf.h
linux-elf.h pe.h t-arm-elf unknown-elf.h
gcc/config/avr : avr-protos.h avr.c avr.h
gcc/config/c4x : c4x.c c4x.h
gcc/config/convex: convex.h
gcc/config/d30v: d30v.c d30v.h
gcc/config/dsp16xx: dsp16xx.h
gcc/config/elxsi: elxsi.h
gcc/config/fr30: fr30.h
gcc/config/h8300: h8300-protos.h h8300.c h8300.h h8300.md
gcc/config/i386: cygwin.h djgpp.h freebsd-aout.h i386-interix.h
i386-protos.h i386.c i386.h i386.md i386elf.h
sco5.h win32.h winnt.c
gcc/config/i960: i960.h
gcc/config/ia64: aix.h hpux.h ia64.c ia64.h ia64.md sysv4.h
t-hpux
gcc/config/m68hc11: larith.asm m68hc11.c m68hc11.h m68hc11.md
t-m68hc11-gas
gcc/config/m68k: coff.h linux-aout.h linux.h m68k.c m68k.h
m68k.md rtemself.h
gcc/config/m88k: m88k.c m88k.h
gcc/config/mcore: mcore-pe.h mcore.c mcore.h
gcc/config/mips: elf.h elf64.h iris6.h iris6gld.h linux.h
mips-protos.h mips.c mips.h mips.md netbsd.h
openbsd.h t-iris6
gcc/config/mn10200: mn10200.h
gcc/config/mn10300: mn10300.h
gcc/config/pa : pa64-hpux.h
gcc/config/pdp11: pdp11.md
gcc/config/pj : pj.h
gcc/config/rs6000: aix.h darwin.h linux.h rs6000-protos.h
rs6000.c rs6000.h rs6000.md sysv4.h t-ppccomm
gcc/config/sh : elf.h linux.h sh-protos.h sh.c sh.h sh.md
gcc/config/sparc: linux.h linux64.h rtems.h rtemself.h
sparc-protos.h sparc.c sparc.h sparc.md
sysv4.h
gcc/config/v850: v850.c v850.h v850.md
gcc/config/vax : openbsd.h openbsd1.h ultrix.h vax-protos.h
vax.c vax.h vax.md vaxv.h xm-vms.h
gcc/cp : ChangeLog NEWS call.c class.c cp-tree.h cvt.c
decl.c decl2.c dump.c error.c except.c expr.c
init.c lang-options.h lang-specs.h mangle.c
method.c optimize.c pt.c repo.c rtti.c search.c
semantics.c spew.c tree.c typeck.c
gcc/java : ChangeLog Make-lang.in check-init.c class.c
decl.c java-tree.h jcf-write.c jvgenmain.c
jvspec.c lex.c lex.h parse.h parse.y
gcc/objc : Make-lang.in objc-act.c objc-act.h
libiberty : ChangeLog Makefile.in concat.c regex.c
Added files:
gcc/config : chorus.h
gcc/config/i386: netbsd-elf.h
gcc/config/mips: irix6-libc-compat.c little.h
gcc/config/rs6000: linux64.h netbsd.h xcoff.h
Log message:
2001-08-15 Daniel Berlin <dan@cgsoftware.com>
* ra.c (splits_init): New function, initialize split data
structures/determine costs in terms of loads/stores.
(rematerializable): Handle reg_defs properly.
(parts_to_webs): Calculate spill cost on our own, taking remat
into account.
(init_one_web): Init spill cost to 0 now that we calculate it on
our own.
(struct split_range): New struct, keeping track of stores/loads
needed for live ranges.
(reg_alloc): Don't call reg_scan and regclass at the end, they
screw reg_renumber.
* df.[ch]: Use sbitmaps for reaching uses/defs instead of bitmaps.
The kill set is greedily set, so it's very very dense, and we waste
memory/time using bitmaps for it.
* gcse.c: Begin to fix store motion, global store elimination
works okay now.
2001-08-07 Daniel Berlin <dan@cgsoftware.com>
* ra.c (get_free_reg): Revert Denis's change, it caused subregs to
get allocated to registers of the wrong mode on SPARC. I don't
believe it's correct.
(rewrite_program): Mark modified insns with df_insn_modify.
Move definition of df to top of file, making it global, so we can
stop passing it around for no good reason.
* df.c (df_insn_modify): Grow the UID table if necessary, rather
than assume all emits go through df_insns_modify.
Add dj graph stuff for loop finding/block depth (hopefully will be
moved to flow.c at some point)
(find_nesting_depths): New function.
(dominates): New function.
(DFS_DJ_graph): New function.
(visit_successors): New function.
(dfs): New function.
(reach_under): New function.
(sp_back_edge): New function.
(dom_parent): New function.
(walk_dom_tree): New function.
(calculate_pre_post): New function.
(toplevel): New variables, pre/post order info, depths array for
blocks, domtree is a dominator tree.
* dominance.c (new_dom_tree): New function.
(destroy_dominator_tree): New function.
(add_dom_node): New function.
(dom_node_for_block): New function.
(add_dom_edge): New function.
(dom_tree_from_idoms): New function.
(dump_dom_tree): New function.
* basic-block.h (dom_node): New struct.
(dom_edge): New struct.
(dom_graph): New struct.
(dominator_tree): New typedef.
(dom_tree_from_idoms): New prototype.
(DTREE_N_EDGES): New macro.
(DTREE_N_NODES): New macro.
(DTREE_NODE): New macro.
(DTREE_EDGE): New macro.
(dom_node_for_block): New prototype.
(dump_dom_tree): New prototype.
(destroy_dominator_tree): New prototype.
(linked_list): New struct.
(dj_graph_info): New struct.
(scc_info): New struct.
2001-08-06 Daniel Berlin <dan@cgsoftware.com>
Mainline merge of gcc stuff, fixes a bunch of flow bugs that had
been fixed, etc.
* ra.c (reg_alloc): Do only what is necessary for life analysis,
rather than PROP_FINAL and whatnot.
Also, fix all the comparison warnings and such.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.9112.2.3&r2=1.9112.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.RA.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.45&r2=1.1.2.46
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.592.2.6&r2=1.592.2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/aclocal.m4.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.40.2.2&r2=1.40.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/alias.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.115.2.1&r2=1.115.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/basic-block.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.87.2.2&r2=1.87.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/bb-reorder.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.25.2.1&r2=1.25.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.92.2.2&r2=1.92.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-common.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.224.2.2&r2=1.224.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-decl.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.204.2.2&r2=1.204.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-dump.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.2.2.1&r2=1.2.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-lex.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.129.2.2&r2=1.129.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-parse.in.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.80.2.2&r2=1.80.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-pragma.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.42&r2=1.42.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-semantics.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.17.2.1&r2=1.17.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.112.2.2&r2=1.112.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/calls.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.175.2.1&r2=1.175.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cbitmap.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.1&r2=1.1.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.180.2.2&r2=1.180.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config.gcc.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.25.2.2&r2=1.25.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config.in.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.94.2.2&r2=1.94.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/configure.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.485.2.2&r2=1.485.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/configure.in.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.480.2.2&r2=1.480.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cpperror.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.45.2.1&r2=1.45.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppexp.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.85.2.2&r2=1.85.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppfiles.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.101.2.2&r2=1.101.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cpphash.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.92.2.2&r2=1.92.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppinit.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.144.2.2&r2=1.144.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cpplex.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.125.2.2&r2=1.125.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cpplib.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.237.2.2&r2=1.237.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cpplib.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.161.2.2&r2=1.161.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppmacro.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.39.2.2&r2=1.39.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppmain.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.59.2.2&r2=1.59.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cppspec.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.13&r2=1.13.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.173.2.2&r2=1.173.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cselib.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.2&r2=1.1.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dbxout.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.72.2.2&r2=1.72.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dbxout.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.7.8.2&r2=1.7.8.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/debug.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.5.2.2&r2=1.5.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/debug.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.5.2.2&r2=1.5.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/defaults.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.29.2.2&r2=1.29.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/df.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.8&r2=1.1.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/df.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.6&r2=1.1.2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dominance.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.1&r2=1.1.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.237.2.3&r2=1.237.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.10.2.2&r2=1.10.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarfout.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.78.2.3&r2=1.78.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/emit-rtl.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.161.2.2&r2=1.161.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/except.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.142.2.2&r2=1.142.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.293.2.2&r2=1.293.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.73.2.1&r2=1.73.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/final.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.155.2.2&r2=1.155.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flow.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.373.2.4&r2=1.373.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gcc.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.202.2.2&r2=1.202.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gcse.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.113.2.5&r2=1.113.2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/genattrtab.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.87.2.1&r2=1.87.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/haifa-sched.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.177.2.1&r2=1.177.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/integrate.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.126.2.2&r2=1.126.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/jump.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.151.2.2&r2=1.151.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/local-alloc.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.77.2.3&r2=1.77.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.322.2.1&r2=1.322.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/optabs.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.87.2.2&r2=1.87.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/output.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.53.2.2&r2=1.53.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.def.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.3&r2=1.1.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/params.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.2&r2=1.1.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/predict.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.15.2.1&r2=1.15.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/predict.def.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.5.2.1&r2=1.5.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/predict.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.1&r2=1.1.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/profile.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.52.2.2&r2=1.52.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ra.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.1.2.31&r2=1.1.2.32
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/recog.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.87.2.2&r2=1.87.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/regclass.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.111.2.4&r2=1.111.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/regs.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.19.4.1&r2=1.19.4.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.142.2.2&r2=1.142.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.h.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.33.2.2&r2=1.33.2.3
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http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/resource.c.diff?cvsroot=gcc&only_with_tag=new-regalloc-branch&r1=1.37.2.2&r2=1.37.2.3
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