diff options
| author | Richard Biener <rguenther@suse.de> | 2012-11-27 09:20:02 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-11-27 09:20:02 +0000 |
| commit | 77d19c725f827218975859ab7d3a680904075216 (patch) | |
| tree | 7c54d8d587d7a70769a6edb63a1745ef0bfdf60c /gcc | |
| parent | 3711757e197be740e22e46059b23533ac89cff48 (diff) | |
| download | gcc-77d19c725f827218975859ab7d3a680904075216.zip gcc-77d19c725f827218975859ab7d3a680904075216.tar.gz gcc-77d19c725f827218975859ab7d3a680904075216.tar.bz2 | |
re PR middle-end/55331 (ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre)
2012-11-27 Richard Biener <rguenther@suse.de>
PR middle-end/55331
* gimple-fold.c (gimplify_and_update_call_from_tree): Replace
stmt with a NOP instead of removing it.
* g++.dg/opt/pr55331.C: New testcase.
From-SVN: r193839
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimple-fold.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/opt/pr55331.C | 14 |
4 files changed, 26 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1274fb1..4aab7fc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-11-27 Richard Biener <rguenther@suse.de> + + PR middle-end/55331 + * gimple-fold.c (gimplify_and_update_call_from_tree): Replace + stmt with a NOP instead of removing it. + 2012-11-27 Steven Bosscher <steven@gcc.gnu.org> * loop-invariant.c (check_invariant_table_size): Take sizeof of diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 969cfeb..251be24 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -607,7 +607,7 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) unlink_stmt_vdef (stmt); release_defs (stmt); } - gsi_remove (si_p, true); + gsi_replace (si_p, gimple_build_nop (), true); return; } } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0164d27..ff025c1 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-11-27 Richard Biener <rguenther@suse.de> + + PR middle-end/55331 + * g++.dg/opt/pr55331.C: New testcase. + 2012-11-26 Steven Bosscher <steven@gcc.gnu.org> * gcc.dg/20050811-2.c: Change -dv option to -graph option. diff --git a/gcc/testsuite/g++.dg/opt/pr55331.C b/gcc/testsuite/g++.dg/opt/pr55331.C new file mode 100644 index 0000000..4717db8 --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/pr55331.C @@ -0,0 +1,14 @@ +// PR tree-optimization/55331 +// { dg-do compile } +// { dg-options "-O2 -fno-tree-fre" } + +struct A {}; + +void +foo (A *p, bool x) +{ + A a; + char *e = (char *) (&a + 1); + if (x) + __builtin_memmove (p, &a, e - (char *) &a); +} |