Store default libgcc routine names and allow them to be redefined by target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33105 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 108 insertions, 1 deletions

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 6880cdd..5749d52 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -38,6 +38,93 @@ namespace llvm {
   class MachineBasicBlock;
   class MachineInstr;
 
+namespace RTLIB {
+  /// RTLIB::Libcall enum - This enum defines all of the runtime library calls
+  /// the backend can emit.
+  ///
+  enum Libcall {
+    // Integer
+    SHL_I32,
+    SHL_I64,
+    SRL_I32,
+    SRL_I64,
+    SRA_I32,
+    SRA_I64,
+    MUL_I32,
+    MUL_I64,
+    SDIV_I32,
+    SDIV_I64,
+    UDIV_I32,
+    UDIV_I64,
+    SREM_I32,
+    SREM_I64,
+    UREM_I32,
+    UREM_I64,
+    NEG_I32,
+    NEG_I64,
+
+    // FLOATING POINT
+    ADD_F32,
+    ADD_F64,
+    SUB_F32,
+    SUB_F64,
+    MUL_F32,
+    MUL_F64,
+    DIV_F32,
+    DIV_F64,
+    REM_F32,
+    REM_F64,
+    NEG_F32,
+    NEG_F64,
+    POWI_F32,
+    POWI_F64,
+    SQRT_F32,
+    SQRT_F64,
+    SIN_F32,
+    SIN_F64,
+    COS_F32,
+    COS_F64,
+
+    // CONVERSION
+    FPEXT_F32_F64,
+    FPROUND_F64_F32,
+    FPTOSINT_F32_I32,
+    FPTOSINT_F32_I64,
+    FPTOSINT_F64_I32,
+    FPTOSINT_F64_I64,
+    FPTOUINT_F32_I32,
+    FPTOUINT_F32_I64,
+    FPTOUINT_F64_I32,
+    FPTOUINT_F64_I64,
+    SINTTOFP_I32_F32,
+    SINTTOFP_I32_F64,
+    SINTTOFP_I64_F32,
+    SINTTOFP_I64_F64,
+    UINTTOFP_I32_F32,
+    UINTTOFP_I32_F64,
+    UINTTOFP_I64_F32,
+    UINTTOFP_I64_F64,
+
+    // COMPARISON
+    OEQ_F32,
+    OEQ_F64,
+    UNE_F32,
+    UNE_F64,
+    OGE_F32,
+    OGE_F64,
+    OLT_F32,
+    OLT_F64,
+    OLE_F32,
+    OLE_F64,
+    OGT_F32,
+    OGT_F64,
+    UO_F32,
+    UO_F64,
+
+    UNKNOWN_LIBCALL
+  };
+  }
+
 //===----------------------------------------------------------------------===//
 /// TargetLowering - This class defines information used to lower LLVM code to
 /// legal SelectionDAG operators that the target instruction selector can accept
@@ -857,6 +944,22 @@ public:
 		      std::vector<SDNode*>* Created) const;
 
 
+  //===--------------------------------------------------------------------===//
+  // Runtime Library hooks
+  //
+
+  /// setLibcallName - Rename the default libcall routine name for the specified
+  /// libcall.
+  void setLibcallName(RTLIB::Libcall Call, std::string Name) {
+    LibcallRoutineNames[Call] = Name;
+  }
+
+  /// getLibcallName - Get the libcall routine name for the specified libcall.
+  ///
+  const char *getLibcallName(RTLIB::Libcall Call) const {
+    return LibcallRoutineNames[Call].c_str();
+  }
+
 protected:
   /// addLegalAddressScale - Add a integer (> 1) value which can be used as
   /// scale in the target addressing mode. Note: the ordering matters so the
@@ -989,7 +1092,11 @@ private:
   /// Targets add entries to this map with AddPromotedToType(..), clients access
   /// this with getTypeToPromoteTo(..).
   std::map<std::pair<unsigned, MVT::ValueType>, MVT::ValueType> PromoteToType;
-  
+
+  /// LibcallRoutineNames - Stores the name each libcall.
+  ///
+  std::string LibcallRoutineNames[RTLIB::UNKNOWN_LIBCALL];
+
 protected:
   /// When lowering %llvm.memset this field specifies the maximum number of
   /// store operations that may be substituted for the call to memset. Targets