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
diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h
index ea391b7..4d21b0b 100644
--- a/include/llvm/Target/TargetOptions.h
+++ b/include/llvm/Target/TargetOptions.h
@@ -48,6 +48,12 @@
/// and results are never NaNs or +-Infs.
extern bool FiniteOnlyFPMathOption;
extern bool FiniteOnlyFPMath();
+
+ /// UseSoftFloat - This flag is enabled when the -soft-float flag is specified
+ /// on the command line. When this flag is on, the code generator will
+ /// generate libcalls to the software floating point library instead of
+ /// target FP instructions.
+ extern bool UseSoftFloat;
} // End llvm namespace
#endif
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index e4ece7b..7547614 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -27,6 +27,7 @@
bool NoExcessFPPrecision;
bool UnsafeFPMath;
bool FiniteOnlyFPMathOption;
+ bool UseSoftFloat;
Reloc::Model RelocationModel;
CodeModel::Model CMModel;
}
@@ -55,6 +56,12 @@
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",