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| author | Richard Biener <rguenther@suse.de> | 2013-10-21 13:33:29 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-10-21 13:33:29 +0000 |
| commit | 2445aeac04784c53dcf24a2cf1bbf2f58a1fa7dd (patch) | |
| tree | 2c119af718c18fb0704fced88a9f1f6ccdffaab7 /gcc/fold-const.c | |
| parent | d480e6a572799f809744075cdf447f959753b173 (diff) | |
| download | gcc-2445aeac04784c53dcf24a2cf1bbf2f58a1fa7dd.zip gcc-2445aeac04784c53dcf24a2cf1bbf2f58a1fa7dd.tar.gz gcc-2445aeac04784c53dcf24a2cf1bbf2f58a1fa7dd.tar.bz2 | |
re PR tree-optimization/58794 (ICE in set_lattice_value, at tree-ssa-ccp.c:455 on x86_64-linux-gnu (at -O1, -O2, and -O3))
2013-10-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/58794
* fold-const.c (operand_equal_p): Compare FIELD_DECL operand
of COMPONENT_REFs with OEP_CONSTANT_ADDRESS_OF left in place.
* c-c++-common/torture/pr58794-1.c: New testcase.
* c-c++-common/torture/pr58794-2.c: Likewise.
From-SVN: r203891
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2a18410..0f9454d4 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2715,10 +2715,11 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) case COMPONENT_REF: /* Handle operand 2 the same as for ARRAY_REF. Operand 0 may be NULL when we're called to compare MEM_EXPRs. */ - if (!OP_SAME_WITH_NULL (0)) + if (!OP_SAME_WITH_NULL (0) + || !OP_SAME (1)) return 0; flags &= ~OEP_CONSTANT_ADDRESS_OF; - return OP_SAME (1) && OP_SAME_WITH_NULL (2); + return OP_SAME_WITH_NULL (2); case BIT_FIELD_REF: if (!OP_SAME (0)) |