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This commit is contained in:
Jakub Jelinek 2010-01-14 16:45:40 +00:00
parent 6e98f300dc
commit 1fd246efa8
8 changed files with 480 additions and 6 deletions
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2
.cvsignore
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@ -1,2 +1,2 @@
fastjar-0.97.tar.gz
gcc-4.4.2-20091222.tar.bz2
gcc-4.4.2-20100114.tar.bz2

59
gcc.spec
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@ -1,9 +1,9 @@
%global DATE 20091222
%global SVNREV 155395
%global DATE 20100114
%global SVNREV 155909
%global gcc_version 4.4.2
# Note, gcc_release must be integer, if you want to add suffixes to
# %{release}, append them after %{gcc_release} on Release: line.
%global gcc_release 20
%global gcc_release 25
%global _unpackaged_files_terminate_build 0
%global multilib_64_archs sparc64 ppc64 s390x x86_64
%if 0%{?fedora} >= 13
@ -165,6 +165,10 @@ Patch16: gcc44-unwind-debug-hook.patch
Patch17: gcc44-pr38757.patch
Patch18: gcc44-libstdc++-docs.patch
Patch19: gcc44-ppc64-aixdesc.patch
Patch20: gcc44-max-vartrack-size.patch
Patch21: gcc44-pr42657.patch
Patch22: gcc44-pr42608.patch
Patch23: gcc44-pr42674.patch
Patch1000: fastjar-0.97-segfault.patch
Patch1001: fastjar-0.97-len1.patch
@ -473,6 +477,10 @@ which are required to compile with the GNAT.
%patch18 -p0 -b .libstdc++-docs~
%endif
%patch19 -p0 -b .ppc64-aixdesc~
%patch20 -p0 -b .max-vartrack-size~
%patch21 -p0 -b .pr42657~
%patch22 -p0 -b .pr42608~
%patch23 -p0 -b .pr42674~
# This testcase doesn't compile.
rm libjava/testsuite/libjava.lang/PR35020*
@ -1862,6 +1870,51 @@ fi
%doc rpm.doc/changelogs/libmudflap/ChangeLog*
%changelog
* Thu Jan 14 2010 Jakub Jelinek <jakub@redhat.com> 4.4.2-25
- update from gcc-4_4-branch
- PRs c/42721, middle-end/40281, middle-end/42667, rtl-optimization/42699
- re-add --param max-vartrack-size patch, but this time with default 50mil
instead of 5mil (#531218, #548826)
- don't emit -Wreturn-type warnings in noreturn functions
(PR middle-end/42674)
- march=native fixes for ix86/x86_64
* Tue Jan 12 2010 Jakub Jelinek <jakub@redhat.com> 4.4.2-24
- update from gcc-4_4-branch
- PRs debug/42662, libjava/40859
- speed up var-tracking on various KDE sources (PR debug/41371)
- revert --param max-vartrack-size=NNNN hack
- fix up epilogue unwinding with -fsched2-use-superblocks (PR middle-end/41883)
- fix a -fcompare-debug failure (PR tree-optimization/42645)
- don't make undef symbols weak just because they are known to have C++ vague
linkage (PR c++/42608)
* Sat Jan 9 2010 Jakub Jelinek <jakub@redhat.com> 4.4.2-23
- update from gcc-4_4-branch
- PRs target/42511, target/42542, target/42564
- VTA backports
- PRs debug/42630, debug/42631
- improve construction of ppc64 constants between 0x80000000 and 0xffffffff
- fix inliner and var-tracking not to drop location info needlessly in certain
cases (#552376, PR debug/42657)
* Wed Jan 6 2010 Jakub Jelinek <jakub@redhat.com> 4.4.2-22
- add --param max-vartrack-size=NNNN parameter, give up on
-fvar-tracking-assignments if var-tracking hash tables are over that limit
- fix VTA bugs in the vectorizer (PRs debug/42604, debug/42395)
- fix VTA bug with noreturn calls (PR middle-end/42363)
* Tue Jan 5 2010 Jakub Jelinek <jakub@redhat.com> 4.4.2-21
- update from gcc-4_4-branch
- PRs c++/42331, middle-end/41344, middle-end/42099, other/42611,
rtl-optimization/42475, target/40134, target/42448, target/42503,
target/42549, tree-optimization/41956, tree-optimization/42231,
tree-optimization/42337, tree-optimization/42614
- fix -m*=native with several sources on the command line (PR driver/42442)
- avoid code size differences from traversing decl hash tables hashed by uid
if uid gap sizes differ
- fix .debug_ranges with -ffunction-sections (PR debug/42454)
* Tue Dec 22 2009 Jakub Jelinek <jakub@redhat.com> 4.4.2-20
- fix MEM_SIZE of reload created stack slots (#548825,
PR rtl-optimization/42429)

230
gcc44-max-vartrack-size.patch Normal file
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@ -0,0 +1,230 @@
2010-01-05 Alexandre Oliva <aoliva@redhat.com>
* params.def (PARAM_MAX_VARTRACK_SIZE): New.
* doc/invoke.texi: Document it.
* var-tracking.c: Include toplev.h and params.h.
(vt_find_locations): Return bool indicating success. Compute
hash sizes unconditionally. Check new parameter, report.
(variable_tracking_main_1): Check vt_find_locations results and
retry. Renamed from...
(variable_tracking_main): ... this. New wrapper to preserve
flag_var_tracking_assignments.
* Makefile.in (var-tracking.o): Adjust dependencies.
--- gcc/doc/invoke.texi.jj 2009-12-09 00:36:51.000000000 +0100
+++ gcc/doc/invoke.texi 2010-01-05 10:23:34.000000000 +0100
@@ -7937,6 +7937,15 @@ with more basic blocks than this paramet
motion optimization performed on them. The default value of the
parameter is 1000 for -O1 and 10000 for -O2 and above.
+@item max-vartrack-size
+Sets a maximum number of hash table slots to use during variable
+tracking dataflow analysis of any function. If this limit is exceeded
+with variable tracking at assignments enabled, analysis for that
+function is retried without it, after removing all debug insns from
+the function. If the limit is exceeded even without debug insns, var
+tracking analysis is completely disabled for the function. Setting
+the parameter to zero makes it unlimited.
+
@item min-nondebug-insn-uid
Use uids starting at this parameter for nondebug insns. The range below
the parameter is reserved exclusively for debug insns created by
--- gcc/params.def.jj 2009-09-16 21:35:17.000000000 +0200
+++ gcc/params.def 2010-01-06 10:18:04.000000000 +0100
@@ -771,6 +771,13 @@ DEFPARAM (PARAM_LOOP_INVARIANT_MAX_BBS_I
"max basic blocks number in loop for loop invariant motion",
10000, 0, 0)
+/* Set maximum hash table size for var tracking. */
+
+DEFPARAM (PARAM_MAX_VARTRACK_SIZE,
+ "max-vartrack-size",
+ "Max. size of var tracking hash tables",
+ 50000000, 0, 0)
+
/* Set minimum insn uid for non-debug insns. */
DEFPARAM (PARAM_MIN_NONDEBUG_INSN_UID,
--- gcc/var-tracking.c.jj 2009-12-17 20:42:04.000000000 +0100
+++ gcc/var-tracking.c 2010-01-06 10:17:28.000000000 +0100
@@ -108,6 +108,8 @@
#include "tree-pass.h"
#include "cselib.h"
#include "target.h"
+#include "toplev.h"
+#include "params.h"
/* Type of micro operation. */
enum micro_operation_type
@@ -443,7 +445,7 @@ static int add_uses (rtx *, void *);
static void add_uses_1 (rtx *, void *);
static void add_stores (rtx, const_rtx, void *);
static bool compute_bb_dataflow (basic_block);
-static void vt_find_locations (void);
+static bool vt_find_locations (void);
static void dump_attrs_list (attrs);
static int dump_variable_slot (void **, void *);
@@ -5454,7 +5456,7 @@ compute_bb_dataflow (basic_block bb)
/* Find the locations of variables in the whole function. */
-static void
+static bool
vt_find_locations (void)
{
fibheap_t worklist, pending, fibheap_swap;
@@ -5465,6 +5467,8 @@ vt_find_locations (void)
int *rc_order;
int i;
int htabsz = 0;
+ int htabmax = PARAM_VALUE (PARAM_MAX_VARTRACK_SIZE);
+ bool success = true;
/* Compute reverse completion order of depth first search of the CFG
so that the data-flow runs faster. */
@@ -5486,7 +5490,7 @@ vt_find_locations (void)
fibheap_insert (pending, bb_order[bb->index], bb);
sbitmap_ones (in_pending);
- while (!fibheap_empty (pending))
+ while (success && !fibheap_empty (pending))
{
fibheap_swap = pending;
pending = worklist;
@@ -5509,11 +5513,11 @@ vt_find_locations (void)
SET_BIT (visited, bb->index);
- if (dump_file && VTI (bb)->in.vars)
+ if (VTI (bb)->in.vars)
{
htabsz
- -= htab_size (shared_hash_htab (VTI (bb)->in.vars))
- + htab_size (shared_hash_htab (VTI (bb)->out.vars));
+ -= (htab_size (shared_hash_htab (VTI (bb)->in.vars))
+ + htab_size (shared_hash_htab (VTI (bb)->out.vars)));
oldinsz
= htab_elements (shared_hash_htab (VTI (bb)->in.vars));
oldoutsz
@@ -5577,9 +5581,20 @@ vt_find_locations (void)
}
changed = compute_bb_dataflow (bb);
- if (dump_file)
- htabsz += htab_size (shared_hash_htab (VTI (bb)->in.vars))
- + htab_size (shared_hash_htab (VTI (bb)->out.vars));
+ htabsz += (htab_size (shared_hash_htab (VTI (bb)->in.vars))
+ + htab_size (shared_hash_htab (VTI (bb)->out.vars)));
+
+ if (htabmax && htabsz > htabmax)
+ {
+ if (MAY_HAVE_DEBUG_INSNS)
+ inform (DECL_SOURCE_LOCATION (cfun->decl),
+ "variable tracking size limit exceeded with debug insns, retrying without");
+ else
+ inform (DECL_SOURCE_LOCATION (cfun->decl),
+ "variable tracking size limit exceeded");
+ success = false;
+ break;
+ }
if (changed)
{
@@ -5630,7 +5645,7 @@ vt_find_locations (void)
}
}
- if (MAY_HAVE_DEBUG_INSNS)
+ if (success && MAY_HAVE_DEBUG_INSNS)
FOR_EACH_BB (bb)
gcc_assert (VTI (bb)->flooded);
@@ -5640,6 +5655,8 @@ vt_find_locations (void)
sbitmap_free (visited);
sbitmap_free (in_worklist);
sbitmap_free (in_pending);
+
+ return success;
}
/* Print the content of the LIST to dump file. */
@@ -7542,9 +7558,11 @@ vt_finalize (void)
/* The entry point to variable tracking pass. */
-unsigned int
-variable_tracking_main (void)
+static inline unsigned int
+variable_tracking_main_1 (void)
{
+ bool success;
+
if (flag_var_tracking_assignments < 0)
{
delete_debug_insns ();
@@ -7569,7 +7587,31 @@ variable_tracking_main (void)
}
}
- vt_find_locations ();
+ success = vt_find_locations ();
+
+ if (!success && flag_var_tracking_assignments > 0)
+ {
+ vt_finalize ();
+
+ delete_debug_insns ();
+
+ /* This is later restored by our caller. */
+ flag_var_tracking_assignments = 0;
+
+ vt_initialize ();
+
+ if (!frame_pointer_needed && !vt_stack_adjustments ())
+ gcc_unreachable ();
+
+ success = vt_find_locations ();
+ }
+
+ if (!success)
+ {
+ vt_finalize ();
+ vt_debug_insns_local (false);
+ return 0;
+ }
if (dump_file && (dump_flags & TDF_DETAILS))
{
@@ -7583,6 +7625,19 @@ variable_tracking_main (void)
vt_debug_insns_local (false);
return 0;
}
+
+unsigned int
+variable_tracking_main (void)
+{
+ unsigned int ret;
+ int save = flag_var_tracking_assignments;
+
+ ret = variable_tracking_main_1 ();
+
+ flag_var_tracking_assignments = save;
+
+ return ret;
+}
static bool
gate_handle_var_tracking (void)
--- gcc/Makefile.in.jj 2010-01-04 10:07:40.000000000 +0100
+++ gcc/Makefile.in 2010-01-05 10:24:39.000000000 +0100
@@ -2750,7 +2750,8 @@ regstat.o : regstat.c $(CONFIG_H) $(SYST
var-tracking.o : var-tracking.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
$(RTL_H) $(TREE_H) hard-reg-set.h insn-config.h reload.h $(FLAGS_H) \
$(BASIC_BLOCK_H) output.h sbitmap.h alloc-pool.h $(FIBHEAP_H) $(HASHTAB_H) \
- $(REGS_H) $(EXPR_H) $(TIMEVAR_H) tree-pass.h cselib.h $(TARGET_H)
+ $(REGS_H) $(EXPR_H) $(TIMEVAR_H) tree-pass.h cselib.h $(TARGET_H) \
+ $(TOPLEV_H) $(PARAMS_H)
profile.o : profile.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
$(TREE_H) $(FLAGS_H) output.h $(REGS_H) $(EXPR_H) $(FUNCTION_H) \
$(TOPLEV_H) $(COVERAGE_H) $(TREE_FLOW_H) value-prof.h cfghooks.h \

68
gcc44-pr42608.patch Normal file
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@ -0,0 +1,68 @@
2010-01-09 Jakub Jelinek <jakub@redhat.com>
PR c++/42608
* varasm.c (declare_weak): Add weak attribute to decl if it
doesn't have one already.
(assemble_external): Only add decls to weak_decls if they also
have weak attribute.
* g++.dg/template/instantiate11.C: New test.
--- gcc/varasm.c.jj 2009-11-09 16:38:29.000000000 +0100
+++ gcc/varasm.c 2010-01-08 13:30:12.000000000 +0100
@@ -2309,13 +2309,15 @@ assemble_external (tree decl ATTRIBUTE_U
/* We want to output annotation for weak and external symbols at
very last to check if they are references or not. */
- if (SUPPORTS_WEAK && DECL_WEAK (decl)
+ if (SUPPORTS_WEAK
+ && DECL_WEAK (decl)
/* TREE_STATIC is a weird and abused creature which is not
generally the right test for whether an entity has been
locally emitted, inlined or otherwise not-really-extern, but
for declarations that can be weak, it happens to be
match. */
- && !TREE_STATIC (decl))
+ && !TREE_STATIC (decl)
+ && lookup_attribute ("weak", DECL_ATTRIBUTES (decl)))
weak_decls = tree_cons (NULL, decl, weak_decls);
#ifdef ASM_OUTPUT_EXTERNAL
@@ -5008,6 +5010,9 @@ declare_weak (tree decl)
warning (0, "weak declaration of %q+D not supported", decl);
mark_weak (decl);
+ if (!lookup_attribute ("weak", DECL_ATTRIBUTES (decl)))
+ DECL_ATTRIBUTES (decl)
+ = tree_cons (get_identifier ("weak"), NULL, DECL_ATTRIBUTES (decl));
}
static void
--- gcc/testsuite/g++.dg/template/instantiate11.C.jj 2010-01-08 13:48:58.000000000 +0100
+++ gcc/testsuite/g++.dg/template/instantiate11.C 2010-01-08 14:18:44.000000000 +0100
@@ -0,0 +1,25 @@
+// PR c++/42608
+// { dg-do compile }
+
+template <class U, class V>
+struct A;
+
+template <class V>
+struct A<int, V>
+{
+ void f ();
+};
+
+template struct A<int, int>;
+
+int
+main ()
+{
+ A<int, int> a;
+ a.f ();
+ return 0;
+}
+
+// Make sure we get undefined reference error if
+// A<int, int>::f () isn't instantiated elsewhere.
+// { dg-final { scan-assembler-not "weak\[\n\t\]*_ZN1AIiiE1fEv" } }

73
gcc44-pr42657.patch Normal file
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@ -0,0 +1,73 @@
2010-01-09 Alexandre Oliva <aoliva@redhat.com>
PR debug/42657
* var-tracking.c (var_reg_delete): Don't delete the association
between REGs and values or one-part variables if the register
isn't clobbered.
2010-01-08 Jakub Jelinek <jakub@redhat.com>
PR debug/42657
* tree-inline.c (copy_debug_stmt): Don't reset debug stmt just
because its first operand is a non-localized variable.
--- gcc/tree-inline.c.jj 2010-01-08 10:21:30.000000000 +0100
+++ gcc/tree-inline.c 2010-01-08 10:19:49.000000000 +0100
@@ -2043,6 +2043,12 @@ copy_debug_stmt (gimple stmt, copy_body_
gcc_assert (TREE_CODE (*n) == VAR_DECL);
t = *n;
}
+ else if (TREE_CODE (t) == VAR_DECL
+ && !TREE_STATIC (t)
+ && gimple_in_ssa_p (cfun)
+ && !pointer_map_contains (id->decl_map, t)
+ && !var_ann (t))
+ /* T is a non-localized variable. */;
else
walk_tree (&t, remap_gimple_op_r, &wi, NULL);
--- gcc/var-tracking.c.orig 2010-01-09 07:00:12.000000000 -0200
+++ gcc/var-tracking.c 2010-01-09 07:00:14.000000000 -0200
@@ -1401,14 +1401,15 @@ var_reg_delete_and_set (dataflow_set *se
var_reg_set (set, loc, initialized, set_src);
}
-/* Delete current content of register LOC in dataflow set SET. If
- CLOBBER is true, also delete any other live copies of the same
- variable part. */
+/* Delete the association of register LOC in dataflow set SET with any
+ variables that aren't onepart. If CLOBBER is true, also delete any
+ other live copies of the same variable part, and delete the
+ association with onepart dvs too. */
static void
var_reg_delete (dataflow_set *set, rtx loc, bool clobber)
{
- attrs *reg = &set->regs[REGNO (loc)];
+ attrs *nextp = &set->regs[REGNO (loc)];
attrs node, next;
if (clobber)
@@ -1421,13 +1422,18 @@ var_reg_delete (dataflow_set *set, rtx l
clobber_variable_part (set, NULL, dv_from_decl (decl), offset, NULL);
}
- for (node = *reg; node; node = next)
+ for (node = *nextp; node; node = next)
{
next = node->next;
- delete_variable_part (set, node->loc, node->dv, node->offset);
- pool_free (attrs_pool, node);
+ if (clobber || !dv_onepart_p (node->dv))
+ {
+ delete_variable_part (set, node->loc, node->dv, node->offset);
+ pool_free (attrs_pool, node);
+ *nextp = next;
+ }
+ else
+ nextp = &node->next;
}
- *reg = NULL;
}
/* Delete content of register with number REGNO in dataflow set SET. */

49
gcc44-pr42674.patch Normal file
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@ -0,0 +1,49 @@
2010-01-13 Jakub Jelinek <jakub@redhat.com>
PR middle-end/42674
* c-decl.c (finish_function): Don't emit -Wreturn-type warnings in
functions with noreturn attribute.
* decl.c (finish_function): Don't emit -Wreturn-type warnings in
functions with noreturn attribute.
* c-c++-common/pr42674.c: New test.
--- gcc/c-decl.c.jj 2010-01-04 10:46:33.000000000 +0100
+++ gcc/c-decl.c 2010-01-13 18:41:44.000000000 +0100
@@ -8032,6 +8032,8 @@ finish_function (void)
&& !current_function_returns_value && !current_function_returns_null
/* Don't complain if we are no-return. */
&& !current_function_returns_abnormally
+ /* Don't complain if we are declared noreturn. */
+ && !TREE_THIS_VOLATILE (fndecl)
/* Don't warn for main(). */
&& !MAIN_NAME_P (DECL_NAME (fndecl))
/* Or if they didn't actually specify a return type. */
--- gcc/cp/decl.c.jj 2009-12-23 17:31:06.000000000 +0100
+++ gcc/cp/decl.c 2010-01-13 18:43:01.000000000 +0100
@@ -12541,6 +12541,8 @@ finish_function (int flags)
&& !current_function_returns_value && !current_function_returns_null
/* Don't complain if we abort or throw. */
&& !current_function_returns_abnormally
+ /* Don't complain if we are declared noreturn. */
+ && !TREE_THIS_VOLATILE (fndecl)
&& !DECL_NAME (DECL_RESULT (fndecl))
&& !TREE_NO_WARNING (fndecl)
/* Structor return values (if any) are set by the compiler. */
--- gcc/testsuite/c-c++-common/pr42674.c.jj 2010-01-13 18:57:20.000000000 +0100
+++ gcc/testsuite/c-c++-common/pr42674.c 2010-01-13 18:57:58.000000000 +0100
@@ -0,0 +1,13 @@
+/* PR middle-end/42674 */
+/* { dg-do compile } */
+/* { dg-options "-Wreturn-type" } */
+
+extern void bar (void);
+static int foo (void) __attribute__ ((__noreturn__, __used__));
+
+static int
+foo (void)
+{
+ while (1)
+ bar ();
+}

1
import.log
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@ -2,3 +2,4 @@ gcc-4_4_0-0_3:HEAD:gcc-4.4.0-0.3.src.rpm:1232130841
gcc-4_4_0-5:HEAD:gcc-4.4.0-5.src.rpm:1242291126
gcc-4_4_2-14_fc13:HEAD:gcc-4.4.2-14.fc13.src.rpm:1259930464
gcc-4_4_2-20_fc13:HEAD:gcc-4.4.2-20.fc13.src.rpm:1261484502
gcc-4_4_2-25_fc13:HEAD:gcc-4.4.2-25.fc13.src.rpm:1263487371

2
sources
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@ -1,2 +1,2 @@
2659f09c2e43ef8b7d4406321753f1b2 fastjar-0.97.tar.gz
190cf32f4e2f3e5261cda2ba32be0912 gcc-4.4.2-20091222.tar.bz2
43b87119460d344d8052a51eb87cd05e gcc-4.4.2-20100114.tar.bz2