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[Bug tree-optimization/69489] missed vectorization for boolean loop, missed if-conversion
- From: "schwab at linux-m68k dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 21 Apr 2016 14:26:33 +0000
- Subject: [Bug tree-optimization/69489] missed vectorization for boolean loop, missed if-conversion
- Auto-submitted: auto-generated
- References: <bug-69489-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69489
--- Comment #7 from Andreas Schwab <schwab@linux-m68k.org> ---
The second commit triggers this ICE on ia64:
$ gcc/xgcc -Bgcc/ ../../gcc/gcc/testsuite/gcc.dg/pr70725.c -O3 -S
../../gcc/gcc/testsuite/gcc.dg/pr70725.c: In function âfn1â:
../../gcc/gcc/testsuite/gcc.dg/pr70725.c:13:1: internal compiler error: in
phi_convertible_by_degenerating_args, at tree-if-conv.c:605
fn1 ()
^~~
0x4000000001c26b3f phi_convertible_by_degenerating_args
../../gcc/tree-if-conv.c:605
0x4000000001c2727f if_convertible_phi_p
../../gcc/tree-if-conv.c:662
0x4000000001c3675f if_convertible_loop_p_1
../../gcc/tree-if-conv.c:1408
0x4000000001c3700f if_convertible_loop_p
../../gcc/tree-if-conv.c:1466
0x4000000001c374cf tree_if_conversion
../../gcc/tree-if-conv.c:2774
0x4000000001c37d9f execute
../../gcc/tree-if-conv.c:2875