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Makefile.in (tree-tailcall.o): Add $(CFGLOOP_H) dependency. 

2013-02-08  Richard Biener  <rguenther@suse.de>

	* Makefile.in (tree-tailcall.o): Add $(CFGLOOP_H) dependency.
	* ipa-pure-const.c (analyze_function): Avoid calling
	mark_irreducible_loops twice.
	* tree-tailcall.c (tree_optimize_tail_calls_1): Mark loops
	for fixup.

From-SVN: r195876
This commit is contained in:
Richard Biener 2013-02-08 09:07:49 +00:00 committed by Richard Biener
parent ce3aef7d2b
commit 0d5049b238
4 changed files with 22 additions and 5 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2013-02-08 Richard Biener <rguenther@suse.de>
* Makefile.in (tree-tailcall.o): Add $(CFGLOOP_H) dependency.
* ipa-pure-const.c (analyze_function): Avoid calling
mark_irreducible_loops twice.
* tree-tailcall.c (tree_optimize_tail_calls_1): Mark loops
for fixup.
2013-02-07 David S. Miller <davem@davemloft.net>
* dwarf2out.c (based_loc_descr): Perform leaf register remapping

2
gcc/Makefile.in
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@ -2391,7 +2391,7 @@ tree-tailcall.o : tree-tailcall.c $(TREE_FLOW_H) $(CONFIG_H) $(SYSTEM_H) \
$(TREE_H) $(TM_P_H) $(FUNCTION_H) $(TM_H) coretypes.h \
$(EXCEPT_H) $(TREE_PASS_H) $(FLAGS_H) langhooks.h \
$(BASIC_BLOCK_H) $(DBGCNT_H) $(GIMPLE_PRETTY_PRINT_H) $(TARGET_H) \
$(COMMON_TARGET_H)
$(COMMON_TARGET_H) $(CFGLOOP_H)
tree-ssa-sink.o : tree-ssa-sink.c $(TREE_FLOW_H) $(CONFIG_H) \
$(SYSTEM_H) $(TREE_H) $(DIAGNOSTIC_H) \
$(TM_H) coretypes.h $(TREE_PASS_H) $(FLAGS_H) alloc-pool.h \

9
gcc/ipa-pure-const.c
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@ -779,8 +779,10 @@ end:
{
/* Preheaders are needed for SCEV to work.
Simple latches and recorded exits improve chances that loop will
proved to be finite in testcases such as in loop-15.c and loop-24.c */
loop_optimizer_init (LOOPS_NORMAL
proved to be finite in testcases such as in loop-15.c
and loop-24.c */
loop_optimizer_init (LOOPS_HAVE_PREHEADERS
| LOOPS_HAVE_SIMPLE_LATCHES
| LOOPS_HAVE_RECORDED_EXITS);
if (dump_file && (dump_flags & TDF_DETAILS))
flow_loops_dump (dump_file, NULL, 0);
@ -799,7 +801,8 @@ end:
if (!finite_loop_p (loop))
{
if (dump_file)
fprintf (dump_file, " can not prove finiteness of loop %i\n", loop->num);
fprintf (dump_file, " can not prove finiteness of "
"loop %i\n", loop->num);
l->looping =true;
FOR_EACH_LOOP_BREAK (li);
}

6
gcc/tree-tailcall.c
View File

@ -33,6 +33,7 @@ along with GCC; see the file COPYING3. If not see
#include "langhooks.h"
#include "dbgcnt.h"
#include "target.h"
#include "cfgloop.h"
#include "common/common-target.h"
/* The file implements the tail recursion elimination. It is also used to
@ -1011,7 +1012,12 @@ tree_optimize_tail_calls_1 (bool opt_tailcalls)
}
if (changed)
{
/* We may have created new loops. Make them magically appear. */
if (current_loops)
loops_state_set (LOOPS_NEED_FIXUP);
free_dominance_info (CDI_DOMINATORS);
}
/* Add phi nodes for the virtual operands defined in the function to the
header of the loop created by tail recursion elimination. Do so