Swizzle the target triple based on -mthumb, and update clang-cc to recognize
thumb-foo-bar as an ARM target.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81497 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 05a73b9..9a037c6 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -297,11 +297,20 @@
case llvm::Triple::arm:
case llvm::Triple::thumb: {
+ // FIXME: Factor into subclasses.
llvm::Triple Triple = TC.getTriple();
- // FIXME: Thumb!
+
+ // Thumb2 is the default for V7 on Darwin.
+ //
+ // FIXME: Thumb should just be another -target-feaure, not in the triple.
+ llvm::StringRef Suffix = getLLVMArchSuffixForARM(getARMTargetCPU(Args));
+ bool ThumbDefault =
+ (Suffix == "v7" && TC.getTriple().getOS() == llvm::Triple::Darwin);
std::string ArchName = "arm";
- ArchName += getLLVMArchSuffixForARM (getARMTargetCPU(Args));
- Triple.setArchName(ArchName);
+ if (Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, ThumbDefault))
+ ArchName = "thumb";
+ Triple.setArchName(ArchName + Suffix.str());
+
return Triple.getTriple();
}
}