diff options
| author | Richard Biener <rguenther@suse.de> | 2016-02-16 08:39:22 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-02-16 08:39:22 +0000 |
| commit | c8cfe96e193f91077b97f2ca8605b83628a01448 (patch) | |
| tree | 813da904ace6703c7f25712c14dc6a21058b6ea9 | |
| parent | 1262f780f42ca9c2c444e3d118a8721e62479559 (diff) | |
| download | gcc-c8cfe96e193f91077b97f2ca8605b83628a01448.zip gcc-c8cfe96e193f91077b97f2ca8605b83628a01448.tar.gz gcc-c8cfe96e193f91077b97f2ca8605b83628a01448.tar.bz2 | |
re PR tree-optimization/69801 (gcc ICE on valid code on x86_64-linux-gnu in "operand_equal_p")
2016-02-16 Richard Biener <rguenther@suse.de>
PR middle-end/69801
* fold-const.c (operand_equal_p): For COND_EXPR zero operand
mask OEP_ADDRESS_OF.
* gcc.dg/pr69801.c: New testcase.
From-SVN: r233444
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fold-const.c | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr69801.c | 7 |
4 files changed, 23 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bb8d543..bb58d51 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-02-16 Richard Biener <rguenther@suse.de> + + PR middle-end/69801 + * fold-const.c (operand_equal_p): For COND_EXPR zero operand + mask OEP_ADDRESS_OF. + 2016-02-16 Alan Modra <amodra@gmail.com> PR target/68973 diff --git a/gcc/fold-const.c b/gcc/fold-const.c index e34bc81..4992f4b 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -3118,6 +3118,11 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) TREE_OPERAND (arg1, 0), flags)); case COND_EXPR: + if (! OP_SAME (1) || ! OP_SAME (2)) + return 0; + flags &= ~OEP_ADDRESS_OF; + return OP_SAME (0); + case VEC_COND_EXPR: case DOT_PROD_EXPR: return OP_SAME (0) && OP_SAME (1) && OP_SAME (2); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 020ab2b..9ce6eb8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-02-16 Richard Biener <rguenther@suse.de> + + PR middle-end/69801 + * gcc.dg/pr69801.c: New testcase. + 2016-02-15 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR libgfortran/69651 diff --git a/gcc/testsuite/gcc.dg/pr69801.c b/gcc/testsuite/gcc.dg/pr69801.c new file mode 100644 index 0000000..474cf83 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr69801.c @@ -0,0 +1,7 @@ +/* { dg-do compile } */ + +struct { + char c[1]; +} b, c; +int d, e; +void fn1() { e ? (d ? b : c).c : (d ? b : c).c; } |