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re PR rtl-optimization/52803 (ICE: in ira, at ira.c:3616 with -fno-move-loop-invariants on almost any code)

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2012-04-02  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52803
	* loop-init.c (gate_handle_loop2): Destroy loops here if
	we don't enter RTL loop optimizers.

	* gcc.dg/pr52803.c: New testcase.

From-SVN: r186080
This commit is contained in:
Richard Guenther 2012-04-02 11:59:47 +00:00 • committed by Richard Biener
parent cf5ba8a881
commit 225820eef4
4 changed files with 31 additions and 7 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2012-04-02 Richard Guenther <rguenther@suse.de>
PR middle-end/52803
* loop-init.c (gate_handle_loop2): Destroy loops here if
we don't enter RTL loop optimizers.
2012-04-02 Uros Bizjak <ubizjak@gmail.com>
Partially revert:

23
gcc/loop-init.c
View file

@ -158,15 +158,24 @@ loop_optimizer_finalize (void)
static bool
gate_handle_loop2 (void)
{
return (optimize > 0
&& (flag_move_loop_invariants
|| flag_unswitch_loops
|| flag_peel_loops
|| flag_unroll_loops
if (optimize > 0
&& (flag_move_loop_invariants
|| flag_unswitch_loops
|| flag_peel_loops
|| flag_unroll_loops
#ifdef HAVE_doloop_end
|| (flag_branch_on_count_reg && HAVE_doloop_end)
|| (flag_branch_on_count_reg && HAVE_doloop_end)
#endif
));
))
return true;
else
{
/* No longer preserve loops, remove them now. */
cfun->curr_properties &= ~PROP_loops;
if (current_loops)
loop_optimizer_finalize ();
return false;
}
}
struct rtl_opt_pass pass_loop2 =

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2012-04-02 Richard Guenther <rguenther@suse.de>
PR middle-end/52803
* gcc.dg/pr52803.c: New testcase.
2012-04-02 Dodji Seketeli <dodji@redhat.com>
PR c++/40942

4
gcc/testsuite/gcc.dg/pr52803.c Normal file
View file

@ -0,0 +1,4 @@
/* { dg-do compile } */
/* { dg-options "-O -fno-move-loop-invariants" } */
int main () { return 0; }