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| author | Richard Guenther <rguenther@suse.de> | 2009-10-28 13:28:32 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-10-28 13:28:32 +0000 |
| commit | 1307c758a3aad3df3e7af66f6ec68b4cb599b054 (patch) | |
| tree | c6cbdb47b276ee46a1baf832ef5152d54c71249e /gcc/tree-ssa-structalias.c | |
| parent | de5b9f12c55af9a6f48a2febe7cf345fe0bd9163 (diff) | |
| download | gcc-1307c758a3aad3df3e7af66f6ec68b4cb599b054.zip gcc-1307c758a3aad3df3e7af66f6ec68b4cb599b054.tar.gz gcc-1307c758a3aad3df3e7af66f6ec68b4cb599b054.tar.bz2 | |
re PR middle-end/41855 (ICE in refs_may_alias_p_1, at tree-ssa-alias.c:855)
2009-10-28 Richard Guenther <rguenther@suse.de>
PR middle-end/41855
* tree-ssa-alias.c (refs_may_alias_p_1): Deal with CONST_DECLs
(ref_maybe_used_by_call_p_1): Fix bcopy handling.
(call_may_clobber_ref_p_1): Likewise.
* tree-ssa-structalias.c (find_func_aliases): Likewise.
* alias.c (nonoverlapping_memrefs_p): Deal with CONST_DECLs.
* gfortran.dg/lto/20091028-1_0.f90: New testcase.
* gfortran.dg/lto/20091028-1_1.c: Likewise.
* gfortran.dg/lto/20091028-2_0.f90: Likewise.
* gfortran.dg/lto/20091028-2_1.c: Likewise.
From-SVN: r153655
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index 7b33936..74dc6d2 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3687,8 +3687,10 @@ find_func_aliases (gimple origt) case BUILT_IN_STRNCAT: { tree res = gimple_call_lhs (t); - tree dest = gimple_call_arg (t, 0); - tree src = gimple_call_arg (t, 1); + tree dest = gimple_call_arg (t, (DECL_FUNCTION_CODE (fndecl) + == BUILT_IN_BCOPY ? 1 : 0)); + tree src = gimple_call_arg (t, (DECL_FUNCTION_CODE (fndecl) + == BUILT_IN_BCOPY ? 0 : 1)); if (res != NULL_TREE) { get_constraint_for (res, &lhsc); |