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| author | Dmitry Polukhin <dmitry.polukhin@gmail.com> | 2016-04-07 12:32:19 +0000 |
|---|---|---|
| committer | Dmitry Polukhin <dmitry.polukhin@gmail.com> | 2016-04-07 12:32:19 +0000 |
| commit | a1feff7024b552b579f302fea0030aaaa14624b3 (patch) | |
| tree | bc5cbda70333854512705e91da81598e4368a052 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 79cb643b201bfa1acba9a1afef7395f3be3f60e6 (diff) | |
| download | llvm-a1feff7024b552b579f302fea0030aaaa14624b3.zip llvm-a1feff7024b552b579f302fea0030aaaa14624b3.tar.gz llvm-a1feff7024b552b579f302fea0030aaaa14624b3.tar.bz2 | |
[GCC] Attribute ifunc support in llvm
This patch add support for GCC attribute((ifunc("resolver"))) for
targets that use ELF as object file format. In general ifunc is a
special kind of function alias with type @gnu_indirect_function. Patch
for Clang http://reviews.llvm.org/D15524
Differential Revision: http://reviews.llvm.org/D15525
llvm-svn: 265667
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp index 0e74fe3..b8ebe8f 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -3658,6 +3658,8 @@ std::error_code BitcodeReader::parseModule(uint64_t ResumeBit, } // ALIAS: [alias type, addrspace, aliasee val#, linkage] // ALIAS: [alias type, addrspace, aliasee val#, linkage, visibility, dllstorageclass] + // IFUNC: [alias type, addrspace, aliasee val#, linkage, visibility, dllstorageclass] + case bitc::MODULE_CODE_IFUNC: case bitc::MODULE_CODE_ALIAS: case bitc::MODULE_CODE_ALIAS_OLD: { bool NewRecord = BitCode != bitc::MODULE_CODE_ALIAS_OLD; @@ -3684,10 +3686,11 @@ std::error_code BitcodeReader::parseModule(uint64_t ResumeBit, GlobalIndirectSymbol *NewGA; if (BitCode == bitc::MODULE_CODE_ALIAS || BitCode == bitc::MODULE_CODE_ALIAS_OLD) - NewGA = GlobalAlias::create( - Ty, AddrSpace, getDecodedLinkage(Linkage), "", TheModule); + NewGA = GlobalAlias::create(Ty, AddrSpace, getDecodedLinkage(Linkage), + "", TheModule); else - llvm_unreachable("Not an alias!"); + NewGA = GlobalIFunc::create(Ty, AddrSpace, getDecodedLinkage(Linkage), + "", nullptr, TheModule); // Old bitcode files didn't have visibility field. // Local linkage must have default visibility. if (OpNum != Record.size()) { |