Fix LTO builds with xcode 4.
llvm-svn: 132132
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 19f57cf..c4ef57c 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1588,8 +1588,18 @@
while (!Stream.AtEndOfStream()) {
unsigned Code = Stream.ReadCode();
- if (Code != bitc::ENTER_SUBBLOCK)
+ if (Code != bitc::ENTER_SUBBLOCK) {
+
+ // The ranlib in xcode 4 will align archive members by appending newlines to the
+ // end of them. If this file size is a multiple of 4 but not 8, we have to read and
+ // ignore these final 4 bytes :-(
+ if (Stream.GetAbbrevIDWidth() == 2 && Code == 2 &&
+ Stream.Read(6) == 2 && Stream.Read(24) == 0xa0a0a &&
+ Stream.AtEndOfStream())
+ return false;
+
return Error("Invalid record at top-level");
+ }
unsigned BlockID = Stream.ReadSubBlockID();