diff options
Diffstat (limited to 'clang/lib/Basic/Targets.cpp')
| -rw-r--r-- | clang/lib/Basic/Targets.cpp | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index b28808bf270..1dfddb559d2 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -3838,7 +3838,42 @@ public: // FIXME: Should we just treat this as a feature? IsThumb = getTriple().getArchName().startswith("thumb"); - setABI("aapcs-linux"); + // FIXME: This duplicates code from the driver that sets the -target-abi + // option - this code is used if -target-abi isn't passed and should + // be unified in some way. + if (Triple.isOSBinFormatMachO()) { + // The backend is hardwired to assume AAPCS for M-class processors, ensure + // the frontend matches that. + if (Triple.getEnvironment() == llvm::Triple::EABI || + Triple.getOS() == llvm::Triple::UnknownOS || + StringRef(CPU).startswith("cortex-m")) { + setABI("aapcs"); + } else { + setABI("apcs-gnu"); + } + } else if (Triple.isOSWindows()) { + // FIXME: this is invalid for WindowsCE + setABI("aapcs"); + } else { + // Select the default based on the platform. + switch (Triple.getEnvironment()) { + case llvm::Triple::Android: + case llvm::Triple::GNUEABI: + case llvm::Triple::GNUEABIHF: + setABI("aapcs-linux"); + break; + case llvm::Triple::EABIHF: + case llvm::Triple::EABI: + setABI("aapcs"); + break; + default: + if (Triple.getOS() == llvm::Triple::NetBSD) + setABI("apcs-gnu"); + else + setABI("aapcs"); + break; + } + } // ARM targets default to using the ARM C++ ABI. TheCXXABI.set(TargetCXXABI::GenericARM); |
