Implement the subset of the GetConstantValueAsSignedInt function that is needed, locally. Remove the two support functions to inline their contents.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@525 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetMachine/Sparc/SparcInstrSelection.cpp b/lib/CodeGen/TargetMachine/Sparc/SparcInstrSelection.cpp
index 8f79f66..8b5a280 100644
--- a/lib/CodeGen/TargetMachine/Sparc/SparcInstrSelection.cpp
+++ b/lib/CodeGen/TargetMachine/Sparc/SparcInstrSelection.cpp
@@ -107,6 +107,38 @@
//************************ Internal Functions ******************************/
+// Convenience function to get the value of an integer constant, for an
+// appropriate integer or non-integer type that can be held in an integer.
+// The type of the argument must be the following:
+// GetConstantValueAsSignedInt: any of the above, but the value
+// must fit into a int64_t.
+//
+// isValidConstant is set to true if a valid constant was found.
+//
+
+static int64_t GetConstantValueAsSignedInt(const Value *V,
+ bool &isValidConstant) {
+ if (!V->isConstant()) { isValidConstant = false; return 0; }
+ isValidConstant = true;
+
+ if (V->getType() == Type::BoolTy)
+ return ((ConstPoolBool*)V)->getValue();
+ if (V->getType()->isIntegral()) {
+ if (V->getType()->isSigned())
+ return ((ConstPoolSInt*)V)->getValue();
+
+ assert(V->getType()->isUnsigned());
+ uint64_t Val = ((ConstPoolUInt*)V)->getValue();
+
+ if (Val < INT64_MAX) // then safe to cast to signed
+ return (int64_t)Val;
+ }
+
+ isValidConstant = false;
+ return 0;
+}
+
+
//------------------------------------------------------------------------
// External Function: ThisIsAChainRule