diff options
author | H.J. Lu <hongjiu.lu@intel.com> | 2009-11-25 10:55:54 +0000 |
---|---|---|
committer | H.J. Lu <hjl@gcc.gnu.org> | 2009-11-25 02:55:54 -0800 |
commit | b8698a0f3794ca2fda9837dfdd83feea1a4ca75c (patch) | |
tree | 4375f002b368e9044a1d9ca874026be04b7c3105 /gcc/loop-iv.c | |
parent | 98aa3f36a781727c603ad99ada9632131154b9a7 (diff) | |
download | gcc-b8698a0f3794ca2fda9837dfdd83feea1a4ca75c.tar.gz |
Remove trailing white spaces.
2009-11-25 H.J. Lu <hongjiu.lu@intel.com>
* alias.c: Remove trailing white spaces.
* alloc-pool.c: Likewise.
* alloc-pool.h: Likewise.
* attribs.c: Likewise.
* auto-inc-dec.c: Likewise.
* basic-block.h: Likewise.
* bb-reorder.c: Likewise.
* bt-load.c: Likewise.
* builtins.c: Likewise.
* builtins.def: Likewise.
* c-common.c: Likewise.
* c-common.h: Likewise.
* c-cppbuiltin.c: Likewise.
* c-decl.c: Likewise.
* c-format.c: Likewise.
* c-lex.c: Likewise.
* c-omp.c: Likewise.
* c-opts.c: Likewise.
* c-parser.c: Likewise.
* c-pretty-print.c: Likewise.
* c-tree.h: Likewise.
* c-typeck.c: Likewise.
* caller-save.c: Likewise.
* calls.c: Likewise.
* cfg.c: Likewise.
* cfganal.c: Likewise.
* cfgexpand.c: Likewise.
* cfghooks.c: Likewise.
* cfghooks.h: Likewise.
* cfglayout.c: Likewise.
* cfgloop.c: Likewise.
* cfgloop.h: Likewise.
* cfgloopmanip.c: Likewise.
* cfgrtl.c: Likewise.
* cgraph.c: Likewise.
* cgraph.h: Likewise.
* cgraphbuild.c: Likewise.
* cgraphunit.c: Likewise.
* cif-code.def: Likewise.
* collect2.c: Likewise.
* combine.c: Likewise.
* convert.c: Likewise.
* coverage.c: Likewise.
* crtstuff.c: Likewise.
* cse.c: Likewise.
* cselib.c: Likewise.
* dbgcnt.c: Likewise.
* dbgcnt.def: Likewise.
* dbgcnt.h: Likewise.
* dbxout.c: Likewise.
* dce.c: Likewise.
* ddg.c: Likewise.
* ddg.h: Likewise.
* defaults.h: Likewise.
* df-byte-scan.c: Likewise.
* df-core.c: Likewise.
* df-problems.c: Likewise.
* df-scan.c: Likewise.
* df.h: Likewise.
* dfp.c: Likewise.
* diagnostic.c: Likewise.
* diagnostic.h: Likewise.
* dominance.c: Likewise.
* domwalk.c: Likewise.
* double-int.c: Likewise.
* double-int.h: Likewise.
* dse.c: Likewise.
* dwarf2asm.c: Likewise.
* dwarf2asm.h: Likewise.
* dwarf2out.c: Likewise.
* ebitmap.c: Likewise.
* ebitmap.h: Likewise.
* emit-rtl.c: Likewise.
* et-forest.c: Likewise.
* except.c: Likewise.
* except.h: Likewise.
* expmed.c: Likewise.
* expr.c: Likewise.
* expr.h: Likewise.
* final.c: Likewise.
* flags.h: Likewise.
* fold-const.c: Likewise.
* function.c: Likewise.
* function.h: Likewise.
* fwprop.c: Likewise.
* gcc.c: Likewise.
* gcov-dump.c: Likewise.
* gcov-io.c: Likewise.
* gcov-io.h: Likewise.
* gcov.c: Likewise.
* gcse.c: Likewise.
* genattr.c: Likewise.
* genattrtab.c: Likewise.
* genautomata.c: Likewise.
* genchecksum.c: Likewise.
* genconfig.c: Likewise.
* genflags.c: Likewise.
* gengtype-parse.c: Likewise.
* gengtype.c: Likewise.
* gengtype.h: Likewise.
* genmddeps.c: Likewise.
* genmodes.c: Likewise.
* genopinit.c: Likewise.
* genpreds.c: Likewise.
* gensupport.c: Likewise.
* ggc-common.c: Likewise.
* ggc-page.c: Likewise.
* ggc-zone.c: Likewise.
* ggc.h: Likewise.
* gimple-iterator.c: Likewise.
* gimple-low.c: Likewise.
* gimple-pretty-print.c: Likewise.
* gimple.c: Likewise.
* gimple.def: Likewise.
* gimple.h: Likewise.
* gimplify.c: Likewise.
* graphds.c: Likewise.
* graphite-clast-to-gimple.c: Likewise.
* gthr-nks.h: Likewise.
* gthr-posix.c: Likewise.
* gthr-posix.h: Likewise.
* gthr-posix95.h: Likewise.
* gthr-single.h: Likewise.
* gthr-tpf.h: Likewise.
* gthr-vxworks.h: Likewise.
* gthr.h: Likewise.
* haifa-sched.c: Likewise.
* hard-reg-set.h: Likewise.
* hooks.c: Likewise.
* hooks.h: Likewise.
* hosthooks.h: Likewise.
* hwint.h: Likewise.
* ifcvt.c: Likewise.
* incpath.c: Likewise.
* init-regs.c: Likewise.
* integrate.c: Likewise.
* ipa-cp.c: Likewise.
* ipa-inline.c: Likewise.
* ipa-prop.c: Likewise.
* ipa-pure-const.c: Likewise.
* ipa-reference.c: Likewise.
* ipa-struct-reorg.c: Likewise.
* ipa-struct-reorg.h: Likewise.
* ipa-type-escape.c: Likewise.
* ipa-type-escape.h: Likewise.
* ipa-utils.c: Likewise.
* ipa-utils.h: Likewise.
* ipa.c: Likewise.
* ira-build.c: Likewise.
* ira-color.c: Likewise.
* ira-conflicts.c: Likewise.
* ira-costs.c: Likewise.
* ira-emit.c: Likewise.
* ira-int.h: Likewise.
* ira-lives.c: Likewise.
* ira.c: Likewise.
* jump.c: Likewise.
* lambda-code.c: Likewise.
* lambda-mat.c: Likewise.
* lambda-trans.c: Likewise.
* lambda.h: Likewise.
* langhooks.c: Likewise.
* lcm.c: Likewise.
* libgcov.c: Likewise.
* lists.c: Likewise.
* loop-doloop.c: Likewise.
* loop-init.c: Likewise.
* loop-invariant.c: Likewise.
* loop-iv.c: Likewise.
* loop-unroll.c: Likewise.
* lower-subreg.c: Likewise.
* lto-cgraph.c: Likewise.
* lto-compress.c: Likewise.
* lto-opts.c: Likewise.
* lto-section-in.c: Likewise.
* lto-section-out.c: Likewise.
* lto-streamer-in.c: Likewise.
* lto-streamer-out.c: Likewise.
* lto-streamer.c: Likewise.
* lto-streamer.h: Likewise.
* lto-symtab.c: Likewise.
* lto-wpa-fixup.c: Likewise.
* matrix-reorg.c: Likewise.
* mcf.c: Likewise.
* mode-switching.c: Likewise.
* modulo-sched.c: Likewise.
* omega.c: Likewise.
* omega.h: Likewise.
* omp-low.c: Likewise.
* optabs.c: Likewise.
* optabs.h: Likewise.
* opts-common.c: Likewise.
* opts.c: Likewise.
* params.def: Likewise.
* params.h: Likewise.
* passes.c: Likewise.
* plugin.c: Likewise.
* postreload-gcse.c: Likewise.
* postreload.c: Likewise.
* predict.c: Likewise.
* predict.def: Likewise.
* pretty-print.c: Likewise.
* pretty-print.h: Likewise.
* print-rtl.c: Likewise.
* print-tree.c: Likewise.
* profile.c: Likewise.
* read-rtl.c: Likewise.
* real.c: Likewise.
* recog.c: Likewise.
* reg-stack.c: Likewise.
* regcprop.c: Likewise.
* reginfo.c: Likewise.
* regmove.c: Likewise.
* regrename.c: Likewise.
* regs.h: Likewise.
* regstat.c: Likewise.
* reload.c: Likewise.
* reload1.c: Likewise.
* resource.c: Likewise.
* rtl.c: Likewise.
* rtl.def: Likewise.
* rtl.h: Likewise.
* rtlanal.c: Likewise.
* sbitmap.c: Likewise.
* sched-deps.c: Likewise.
* sched-ebb.c: Likewise.
* sched-int.h: Likewise.
* sched-rgn.c: Likewise.
* sched-vis.c: Likewise.
* sdbout.c: Likewise.
* sel-sched-dump.c: Likewise.
* sel-sched-dump.h: Likewise.
* sel-sched-ir.c: Likewise.
* sel-sched-ir.h: Likewise.
* sel-sched.c: Likewise.
* sel-sched.h: Likewise.
* sese.c: Likewise.
* sese.h: Likewise.
* simplify-rtx.c: Likewise.
* stack-ptr-mod.c: Likewise.
* stmt.c: Likewise.
* stor-layout.c: Likewise.
* store-motion.c: Likewise.
* stringpool.c: Likewise.
* stub-objc.c: Likewise.
* sync-builtins.def: Likewise.
* target-def.h: Likewise.
* target.h: Likewise.
* targhooks.c: Likewise.
* targhooks.h: Likewise.
* timevar.c: Likewise.
* tlink.c: Likewise.
* toplev.c: Likewise.
* toplev.h: Likewise.
* tracer.c: Likewise.
* tree-affine.c: Likewise.
* tree-affine.h: Likewise.
* tree-browser.def: Likewise.
* tree-call-cdce.c: Likewise.
* tree-cfg.c: Likewise.
* tree-cfgcleanup.c: Likewise.
* tree-chrec.c: Likewise.
* tree-chrec.h: Likewise.
* tree-complex.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-data-ref.h: Likewise.
* tree-dfa.c: Likewise.
* tree-dump.c: Likewise.
* tree-dump.h: Likewise.
* tree-eh.c: Likewise.
* tree-flow-inline.h: Likewise.
* tree-flow.h: Likewise.
* tree-if-conv.c: Likewise.
* tree-inline.c: Likewise.
* tree-into-ssa.c: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-loop-linear.c: Likewise.
* tree-mudflap.c: Likewise.
* tree-nested.c: Likewise.
* tree-nomudflap.c: Likewise.
* tree-nrv.c: Likewise.
* tree-object-size.c: Likewise.
* tree-optimize.c: Likewise.
* tree-outof-ssa.c: Likewise.
* tree-parloops.c: Likewise.
* tree-pass.h: Likewise.
* tree-phinodes.c: Likewise.
* tree-predcom.c: Likewise.
* tree-pretty-print.c: Likewise.
* tree-profile.c: Likewise.
* tree-scalar-evolution.c: Likewise.
* tree-ssa-address.c: Likewise.
* tree-ssa-alias.c: Likewise.
* tree-ssa-ccp.c: Likewise.
* tree-ssa-coalesce.c: Likewise.
* tree-ssa-copy.c: Likewise.
* tree-ssa-copyrename.c: Likewise.
* tree-ssa-dce.c: Likewise.
* tree-ssa-dom.c: Likewise.
* tree-ssa-dse.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-ifcombine.c: Likewise.
* tree-ssa-live.c: Likewise.
* tree-ssa-live.h: Likewise.
* tree-ssa-loop-ch.c: Likewise.
* tree-ssa-loop-im.c: Likewise.
* tree-ssa-loop-ivcanon.c: Likewise.
* tree-ssa-loop-ivopts.c: Likewise.
* tree-ssa-loop-manip.c: Likewise.
* tree-ssa-loop-niter.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-loop-unswitch.c: Likewise.
* tree-ssa-loop.c: Likewise.
* tree-ssa-math-opts.c: Likewise.
* tree-ssa-operands.c: Likewise.
* tree-ssa-operands.h: Likewise.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-phiprop.c: Likewise.
* tree-ssa-pre.c: Likewise.
* tree-ssa-propagate.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sccvn.c: Likewise.
* tree-ssa-sink.c: Likewise.
* tree-ssa-structalias.c: Likewise.
* tree-ssa-ter.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-threadupdate.c: Likewise.
* tree-ssa-uncprop.c: Likewise.
* tree-ssa.c: Likewise.
* tree-ssanames.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-tailcall.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop-manip.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-patterns.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* tree-vectorizer.c: Likewise.
* tree-vectorizer.h: Likewise.
* tree-vrp.c: Likewise.
* tree.c: Likewise.
* tree.def: Likewise.
* tree.h: Likewise.
* treestruct.def: Likewise.
* unwind-compat.c: Likewise.
* unwind-dw2-fde-glibc.c: Likewise.
* unwind-dw2.c: Likewise.
* value-prof.c: Likewise.
* value-prof.h: Likewise.
* var-tracking.c: Likewise.
* varasm.c: Likewise.
* varpool.c: Likewise.
* vec.c: Likewise.
* vec.h: Likewise.
* vmsdbgout.c: Likewise.
* web.c: Likewise.
* xcoffout.c: Likewise.
From-SVN: r154645
Diffstat (limited to 'gcc/loop-iv.c')
-rw-r--r-- | gcc/loop-iv.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c index af25d02ed61..16e9a52697d 100644 --- a/gcc/loop-iv.c +++ b/gcc/loop-iv.c @@ -1,19 +1,19 @@ /* Rtl-level induction variable analysis. Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. - + This file is part of GCC. - + GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. - + GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ @@ -35,7 +35,7 @@ along with GCC; see the file COPYING3. If not see iv_analysis_done () to clean up the memory. The available functions are: - + iv_analyze (insn, reg, iv): Stores the description of the induction variable corresponding to the use of register REG in INSN to IV. Returns true if REG is an induction variable in INSN. false otherwise. @@ -168,14 +168,14 @@ lowpart_subreg (enum machine_mode outer_mode, rtx expr, subreg_lowpart_offset (outer_mode, inner_mode)); } -static void +static void check_iv_ref_table_size (void) { if (iv_ref_table_size < DF_DEFS_TABLE_SIZE()) { unsigned int new_size = DF_DEFS_TABLE_SIZE () + (DF_DEFS_TABLE_SIZE () / 4); iv_ref_table = XRESIZEVEC (struct rtx_iv *, iv_ref_table, new_size); - memset (&iv_ref_table[iv_ref_table_size], 0, + memset (&iv_ref_table[iv_ref_table_size], 0, (new_size - iv_ref_table_size) * sizeof (struct rtx_iv *)); iv_ref_table_size = new_size; } @@ -330,7 +330,7 @@ iv_get_reaching_def (rtx insn, rtx reg, df_ref *def) basic_block def_bb, use_bb; rtx def_insn; bool dom_p; - + *def = NULL; if (!simple_reg_p (reg)) return GRD_INVALID; @@ -859,7 +859,7 @@ iv_analyze_biv (rtx def, struct rtx_iv *iv) print_rtl (dump_file, def); fprintf (dump_file, " for bivness.\n"); } - + if (!REG_P (def)) { if (!CONSTANT_P (def)) @@ -919,7 +919,7 @@ iv_analyze_biv (rtx def, struct rtx_iv *iv) return iv->base != NULL_RTX; } -/* Analyzes expression RHS used at INSN and stores the result to *IV. +/* Analyzes expression RHS used at INSN and stores the result to *IV. The mode of the induction variable is MODE. */ bool @@ -943,7 +943,7 @@ iv_analyze_expr (rtx insn, rtx rhs, enum machine_mode mode, struct rtx_iv *iv) { if (!iv_analyze_op (insn, rhs, iv)) return false; - + if (iv->mode == VOIDmode) { iv->mode = mode; @@ -1057,7 +1057,7 @@ iv_analyze_def (df_ref def, struct rtx_iv *iv) fprintf (dump_file, " in insn "); print_rtl_single (dump_file, insn); } - + check_iv_ref_table_size (); if (DF_REF_IV (def)) { @@ -1749,7 +1749,7 @@ simplify_using_condition (rtx cond, rtx *expr, regset altered) *expr = const_true_rtx; return; } - + if (reve && implies_p (cond, reve)) { *expr = const0_rtx; @@ -1855,7 +1855,7 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr) default: gcc_unreachable (); } - + simplify_using_initial_values (loop, UNKNOWN, &head); if (head == aggr) { @@ -1876,7 +1876,7 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr) *expr = tail; return; } - + XEXP (*expr, 0) = head; XEXP (*expr, 1) = tail; return; @@ -1942,7 +1942,7 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr) if (CALL_P (insn)) { int i; - + /* Kill all call clobbered registers. */ for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i)) @@ -2137,7 +2137,7 @@ canonicalize_iv_subregs (struct rtx_iv *iv0, struct rtx_iv *iv1, and iv0 and iv1 are both ivs iterating in SI mode, but calculated in different modes. This does not seem impossible to handle, but it hardly ever occurs in practice. - + The only exception is the case when one of operands is invariant. For example pentium 3 generates comparisons like (lt (subreg:HI (reg:SI)) 100). Here we assign HImode to 100, but we @@ -2299,7 +2299,7 @@ iv_number_of_iterations (struct loop *loop, rtx insn, rtx condition, goto fail; if (iv0.extend_mode == VOIDmode) iv0.mode = iv0.extend_mode = mode; - + op1 = XEXP (condition, 1); if (!iv_analyze (insn, op1, &iv1)) goto fail; @@ -2867,7 +2867,7 @@ find_simple_exit (struct loop *loop, struct niter_desc *desc) { if (flow_bb_inside_loop_p (loop, e->dest)) continue; - + check_simple_exit (loop, e, &act); if (!act.simple_p) continue; @@ -2886,7 +2886,7 @@ find_simple_exit (struct loop *loop, struct niter_desc *desc) if (act.infinite && !desc->infinite) continue; } - + *desc = act; } } @@ -2953,15 +2953,15 @@ get_simple_loop_desc (struct loop *loop) if (desc->simple_p && (desc->assumptions || desc->infinite)) { - const char *wording; + const char *wording; - /* Assume that no overflow happens and that the loop is finite. + /* Assume that no overflow happens and that the loop is finite. We already warned at the tree level if we ran optimizations there. */ if (!flag_tree_loop_optimize && warn_unsafe_loop_optimizations) { if (desc->infinite) { - wording = + wording = flag_unsafe_loop_optimizations ? N_("assuming that the loop is not infinite") : N_("cannot optimize possibly infinite loops"); @@ -2970,7 +2970,7 @@ get_simple_loop_desc (struct loop *loop) } if (desc->assumptions) { - wording = + wording = flag_unsafe_loop_optimizations ? N_("assuming that the loop counter does not overflow") : N_("cannot optimize loop, the loop counter may overflow"); |