RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2025-04-03 00:31:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

BitcodeReader: Allow METADATA_STRINGS to only have !""

Browse Source 
Support parsing a METADATA_STRINGS record that only has a single piece
of metadata, !"".  Fixes a corner case in r264551.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264699 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2016-03-29 05:25:17 +00:00
parent f81b3074f7
commit 859d69a3ce
2 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -1899,7 +1899,7 @@ std::error_code BitcodeReader::parseMetadataStrings(ArrayRef<uint64_t> Record,
unsigned StringsOffset = Record[1];
if (!NumStrings)
return error("Invalid record: metadata strings with no strings");
if (StringsOffset >= Blob.size())
if (StringsOffset > Blob.size())
return error("Invalid record: metadata strings corrupt offset");
StringRef Lengths = Blob.slice(0, StringsOffset);

7
test/Bitcode/metadata-only-empty-string.ll Normal file
View File

@ -0,0 +1,7 @@
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; CHECK: !named = !{!0}
!named = !{!0}
; CHECK: !0 = !{!""}
!0 = !{!""}