ARM: Use front-end specific target features "soft-float" and "soft-float-abi" to communicate FP mode to target; __SOFTFP__ is set correctly now.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91755 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index b1846b3..3dcdbbc 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -230,7 +230,7 @@
if (MArch == "armv5e" || MArch == "armv5te")
return "arm1026ejs";
if (MArch == "armv5tej")
- return "arm926ejs";
+ return "arm926ej-s";
if (MArch == "armv6" || MArch == "armv6k")
return "arm1136jf-s";
if (MArch == "armv6j")
@@ -432,6 +432,24 @@
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("hard");
}
+
+ // Set appropriate target features for floating point mode.
+ //
+ // FIXME: Note, this is a hack, the LLVM backend doesn't actually use these
+ // yet (it uses the -mfloat-abi and -msoft-float options above), and it is
+ // stripped out by the ARM target.
+
+ // Use software floating point operations?
+ if (FloatABI == "soft") {
+ CmdArgs.push_back("-target-feature");
+ CmdArgs.push_back("+soft-float");
+ }
+
+ // Use software floating point argument passing?
+ if (FloatABI != "hard") {
+ CmdArgs.push_back("-target-feature");
+ CmdArgs.push_back("+soft-float-abi");
+ }
}
void Clang::AddX86TargetArgs(const ArgList &Args,