procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR middle-end/55331 (ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre)

Browse source 
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
This commit is contained in:
Richard Biener 2012-11-27 09:20:02 +00:00 • committed by Richard Biener
parent 3711757e19
commit 77d19c725f
4 changed files with 26 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -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

2
gcc/gimple-fold.c
View file

@ -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;
}
}

5
gcc/testsuite/ChangeLog
View file

@ -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.

14
gcc/testsuite/g++.dg/opt/pr55331.C Normal file
View file

@ -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);
}