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| author | Alan Lawrence <alan.lawrence@arm.com> | 2016-03-10 12:19:45 +0000 |
|---|---|---|
| committer | Alan Lawrence <alalaw01@gcc.gnu.org> | 2016-03-10 12:19:45 +0000 |
| commit | 71017a7b7837a4eeb1d1c0b2b155c6567f4f3d95 (patch) | |
| tree | 53a07b60bfba985927686a3c1f4608c6205aaca9 /gcc/common.opt | |
| parent | 4b2066179084192b65d8e56e51c29bccaef4cfe9 (diff) | |
| download | gcc-71017a7b7837a4eeb1d1c0b2b155c6567f4f3d95.tar.gz | |
Add -funconstrained-commons to work around PR/69368 (and others) in SPEC2006
gcc/:
* common.opt (funconstrained-commons, flag_unconstrained_commons): New.
* tree.c (array_at_struct_end_p): Do not limit to size of decl for
DECL_COMMONS if flag_unconstrained_commons is set.
* tree-dfa.c (get_ref_base_and_extent): Likewise.
* doc/invoke.texi (Optimize Options): Add -funconstrained-commons.
(funconstrained-commons): Document.
gcc/testsuite:
* gfortran.dg/unconstrained_commons.f: New.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r234106
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index e91f2257e55..1c8cc8ede8f 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -2458,6 +2458,11 @@ fsplit-paths Common Report Var(flag_split_paths) Init(0) Optimization Split paths leading to loop backedges. +funconstrained-commons +Common Var(flag_unconstrained_commons) Optimization +Assume common declarations may be overridden with ones with a larger +trailing array. + funit-at-a-time Common Report Var(flag_unit_at_a_time) Init(1) Compile whole compilation unit at a time. |