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| author | Jakub Jelinek <jakub@redhat.com> | 2012-02-03 12:55:29 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-02-03 12:55:29 +0100 |
| commit | 32410d02e0b1e561e61fbfc7de76a24d805518e3 (patch) | |
| tree | 0a70c4a8c3ca9a7bc72b852791b251af8f8bafc2 /gcc | |
| parent | 5b5b0fa908dc2042ef1b837d31b44560ee7420a8 (diff) | |
| download | gcc-32410d02e0b1e561e61fbfc7de76a24d805518e3.zip gcc-32410d02e0b1e561e61fbfc7de76a24d805518e3.tar.gz gcc-32410d02e0b1e561e61fbfc7de76a24d805518e3.tar.bz2 | |
re PR rtl-optimization/52092 (ICE: internal consistency failure)
PR rtl-optimization/52092
* loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
on get_iv_value result.
* gcc.c-torture/compile/pr52092.c: New test.
Co-Authored-By: Zdenek Dvorak <ook@ucw.cz>
From-SVN: r183869
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/loop-unswitch.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr52092.c | 25 |
4 files changed, 39 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cb11fed..cbb76e4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2012-02-03 Jakub Jelinek <jakub@redhat.com> + Zdenek Dvorak <ook@ucw.cz> + + PR rtl-optimization/52092 + * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared + on get_iv_value result. + 2012-02-02 Andrew Pinski <apinski@cavium.com> PR middle-end/47982 diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c index 77524d8..78da115 100644 --- a/gcc/loop-unswitch.c +++ b/gcc/loop-unswitch.c @@ -1,5 +1,5 @@ /* Loop unswitching for GNU compiler. - Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 + Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2012 Free Software Foundation, Inc. This file is part of GCC. @@ -367,7 +367,7 @@ unswitch_single_loop (struct loop *loop, rtx cond_checked, int num) fprintf (dump_file, ";; Unswitching loop\n"); /* Unswitch the loop on this condition. */ - nloop = unswitch_loop (loop, bbs[i], cond, cinsn); + nloop = unswitch_loop (loop, bbs[i], copy_rtx_if_shared (cond), cinsn); gcc_assert (nloop); /* Invoke itself on modified loops. */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index e47725a..0c20996 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-02-03 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/52092 + * gcc.c-torture/compile/pr52092.c: New test. + 2012-02-02 Mikael Morin <mikael@gcc.gnu.org> PR fortran/41587 diff --git a/gcc/testsuite/gcc.c-torture/compile/pr52092.c b/gcc/testsuite/gcc.c-torture/compile/pr52092.c new file mode 100644 index 0000000..4c39c77 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr52092.c @@ -0,0 +1,25 @@ +/* PR rtl-optimization/52092 */ + +int a, b, c, d, e, f, g; + +void +foo (void) +{ + for (;;) + { + int *h = 0; + int i = 3; + int **j = &h; + if (e) + { + c = d || a; + g = c ? a : b; + if ((char) (i * g)) + { + h = &f; + *h = 0; + } + **j = 0; + } + } +} |