diff options
| author | Michael J. Spencer <bigcheesegs@gmail.com> | 2010-10-16 08:25:41 +0000 |
|---|---|---|
| committer | Michael J. Spencer <bigcheesegs@gmail.com> | 2010-10-16 08:25:41 +0000 |
| commit | 84ac4d5a2a8fd0e6f95ec46088c0ca7bb63423ac (patch) | |
| tree | 21a10b4aece3d37416044ea441f759f25ea709cb /lib/Target/X86 | |
| parent | e70c526d59e92048c89281d1b7011af0b1d9ee95 (diff) | |
| download | external_llvm-84ac4d5a2a8fd0e6f95ec46088c0ca7bb63423ac.zip external_llvm-84ac4d5a2a8fd0e6f95ec46088c0ca7bb63423ac.tar.gz external_llvm-84ac4d5a2a8fd0e6f95ec46088c0ca7bb63423ac.tar.bz2 | |
X86-Windows: Emit an undefined global __fltused symbol when targeting Windows
if any floating point arguments are passed to an external function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116665 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86')
| -rw-r--r-- | lib/Target/X86/X86AsmPrinter.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp index 85441b1..c4fd729 100644 --- a/lib/Target/X86/X86AsmPrinter.cpp +++ b/lib/Target/X86/X86AsmPrinter.cpp @@ -580,6 +580,13 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) { OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols); } + if (Subtarget->isTargetWindows() + && !Subtarget->isTargetCygMing() + && MMI->callsExternalFunctionWithFloatingPointArguments()) { + MCSymbol *S = MMI->getContext().GetOrCreateSymbol(StringRef("__fltused")); + OutStreamer.EmitSymbolAttribute(S, MCSA_Global); + } + if (Subtarget->isTargetCOFF()) { X86COFFMachineModuleInfo &COFFMMI = MMI->getObjFileInfo<X86COFFMachineModuleInfo>(); |