Added option -soft-float to generate SW fp library calls instead of fp instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32393 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index e4ece7b4d5..7547614a71 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -27,6 +27,7 @@ namespace llvm {
   bool NoExcessFPPrecision;
   bool UnsafeFPMath;
   bool FiniteOnlyFPMathOption;
+  bool UseSoftFloat;
   Reloc::Model RelocationModel;
   CodeModel::Model CMModel;
 }
@@ -55,6 +56,12 @@ namespace {
                cl::desc("Enable optimizations that assumes non- NaNs / +-Infs"),
                cl::location(FiniteOnlyFPMathOption),
                cl::init(false));
+  cl::opt<bool, true>
+  GenerateSoftFloatCalls("soft-float",
+               cl::desc("Generate software floating point library calls"),
+               cl::location(UseSoftFloat),
+               cl::init(false));
+
   cl::opt<llvm::Reloc::Model, true>
   DefRelocationModel(
     "relocation-model",