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| author | Daniel Dunbar <daniel@zuster.org> | 2009-02-18 22:28:45 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-02-18 22:28:45 +0000 |
| commit | 8cdb9dae45e944060012a0176f2cea952ee36881 (patch) | |
| tree | 493da1a7efb08fcfaf4822292754016f1b9cecad /clang/lib/CodeGen | |
| parent | faca7d9842f05e0c1246e4400547334355836ea6 (diff) | |
| download | bcm5719-llvm-8cdb9dae45e944060012a0176f2cea952ee36881.tar.gz bcm5719-llvm-8cdb9dae45e944060012a0176f2cea952ee36881.zip | |
i386 ABI: Offset computation in va_arg was incorrect for sizeof(Ty)>4.
We are down to only failing gcc.dg/compat/vector-[12] (8 tests total).
llvm-svn: 64967
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/CGCall.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index f012d93bfae..45b386f4261 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -360,14 +360,11 @@ llvm::Value *X86_32ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, llvm::PointerType::getUnqual(CGF.ConvertType(Ty)); llvm::Value *AddrTyped = Builder.CreateBitCast(Addr, PTy); - uint64_t SizeInBytes = CGF.getContext().getTypeSize(Ty) / 8; - const unsigned ArgumentSizeInBytes = 4; - if (SizeInBytes < ArgumentSizeInBytes) - SizeInBytes = ArgumentSizeInBytes; - + uint64_t Offset = + llvm::RoundUpToAlignment(CGF.getContext().getTypeSize(Ty) / 8, 4); llvm::Value *NextAddr = Builder.CreateGEP(Addr, - llvm::ConstantInt::get(llvm::Type::Int32Ty, SizeInBytes), + llvm::ConstantInt::get(llvm::Type::Int32Ty, Offset), "ap.next"); Builder.CreateStore(NextAddr, VAListAddrAsBPP); |
