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| author | Bob Wilson <bob.wilson@apple.com> | 2010-03-18 16:52:15 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-03-18 16:52:15 +0000 |
| commit | 35ee7d6e045dd8488678e4d66f0ee6d052451851 (patch) | |
| tree | 03b7173996f34d279b294b8291180f7cae9abf7c /lib/Target/Blackfin | |
| parent | 1ac2429d1f1b89a9a9c0397ef63c4f4fa535fee8 (diff) | |
| download | llvm-35ee7d6e045dd8488678e4d66f0ee6d052451851.tar.gz llvm-35ee7d6e045dd8488678e4d66f0ee6d052451851.tar.bz2 llvm-35ee7d6e045dd8488678e4d66f0ee6d052451851.tar.xz | |
Check if function names start with "llvm." before trying to lookup them up as
intrinsics. The intrinsic lookup code assumes that this check has been done
and assumes the names are at least 6 characters long. Valgrind complained
about this. pr6638.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98831 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Blackfin')
| -rw-r--r-- | lib/Target/Blackfin/BlackfinIntrinsicInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/Blackfin/BlackfinIntrinsicInfo.cpp b/lib/Target/Blackfin/BlackfinIntrinsicInfo.cpp index ea9480d762..34a8d3809e 100644 --- a/lib/Target/Blackfin/BlackfinIntrinsicInfo.cpp +++ b/lib/Target/Blackfin/BlackfinIntrinsicInfo.cpp @@ -53,6 +53,10 @@ std::string BlackfinIntrinsicInfo::getName(unsigned IntrID, const Type **Tys, unsigned BlackfinIntrinsicInfo::lookupName(const char *Name, unsigned Len) const { + if (Len < 5 || Name[4] != '.' || Name[0] != 'l' || Name[1] != 'l' + || Name[2] != 'v' || Name[3] != 'm') + return 0; // All intrinsics start with 'llvm.' + #define GET_FUNCTION_RECOGNIZER #include "BlackfinGenIntrinsics.inc" #undef GET_FUNCTION_RECOGNIZER |