diff options
| author | Ben Cheng <bccheng@google.com> | 2014-05-17 17:03:43 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-05-17 17:12:35 -0700 |
| commit | 8c493ead6366b552adee796de296936b78f34c5a (patch) | |
| tree | 4936e52fb9b84edbcd9293bd321027413d1835bf /gcc-4.9/gcc/ipa-devirt.c | |
| parent | 9750bde7e561731ce8a07cdbd0165a688e74a696 (diff) | |
| download | toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.tar.gz toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.tar.bz2 toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.zip | |
[4.9] Refresh GCC 4.9 to the 20140514 snapshot.
For critical bug fixes including devirtualization and codegen.
Change-Id: I8138d3dc408fc12db5eecb01d2753d39219712f2
Diffstat (limited to 'gcc-4.9/gcc/ipa-devirt.c')
| -rw-r--r-- | gcc-4.9/gcc/ipa-devirt.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/ipa-devirt.c b/gcc-4.9/gcc/ipa-devirt.c index 03a6c5b5d..7f07d2f94 100644 --- a/gcc-4.9/gcc/ipa-devirt.c +++ b/gcc-4.9/gcc/ipa-devirt.c @@ -987,6 +987,17 @@ give_up: context->outer_type = expected_type; context->offset = 0; context->maybe_derived_type = true; + context->maybe_in_construction = true; + /* POD can be changed to an instance of a polymorphic type by + placement new. Here we play safe and assume that any + non-polymorphic type is POD. */ + if ((TREE_CODE (type) != RECORD_TYPE + || !TYPE_BINFO (type) + || !polymorphic_type_binfo_p (TYPE_BINFO (type))) + && (TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST + || (offset + tree_to_uhwi (TYPE_SIZE (expected_type)) <= + tree_to_uhwi (TYPE_SIZE (type))))) + return true; return false; } |