Changes in directory llvm/lib/VMCore:
Constants.cpp updated: 1.184 -> 1.185
---
Log message:
Implement getIntegerCast and getFPCast for ConstantExpr. These are similar
to the createIntegerCast and createFPCast for CastInst instructions.
---
Diffs of the changes: (+23 -0)
Constants.cpp | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+)
Index: llvm/lib/VMCore/Constants.cpp
diff -u llvm/lib/VMCore/Constants.cpp:1.184 llvm/lib/VMCore/Constants.cpp:1.185
--- llvm/lib/VMCore/Constants.cpp:1.184 Fri Dec 8 12:06:15 2006
+++ llvm/lib/VMCore/Constants.cpp Mon Dec 11 18:51:07 2006
@@ -1514,6 +1514,29 @@
return getCast(Instruction::BitCast, S, Ty);
}
+Constant *ConstantExpr::getIntegerCast(Constant *C, const Type *Ty,
+ bool isSigned) {
+ assert(C->getType()->isIntegral() && Ty->isIntegral() && "Invalid cast");
+ unsigned SrcBits = C->getType()->getPrimitiveSizeInBits();
+ unsigned DstBits = Ty->getPrimitiveSizeInBits();
+ Instruction::CastOps opcode =
+ (SrcBits == DstBits ? Instruction::BitCast :
+ (SrcBits > DstBits ? Instruction::Trunc :
+ (isSigned ? Instruction::SExt : Instruction::ZExt)));
+ return getCast(opcode, C, Ty);
+}
+
+Constant *ConstantExpr::getFPCast(Constant *C, const Type *Ty) {
+ assert(C->getType()->isFloatingPoint() && Ty->isFloatingPoint() &&
+ "Invalid cast");
+ unsigned SrcBits = C->getType()->getPrimitiveSizeInBits();
+ unsigned DstBits = Ty->getPrimitiveSizeInBits();
+ Instruction::CastOps opcode =
+ (SrcBits == DstBits ? Instruction::BitCast :
+ (SrcBits > DstBits ? Instruction::FPTrunc : Instruction::FPExt));
+ return getCast(opcode, C, Ty);
+}
+
Constant *ConstantExpr::getTrunc(Constant *C, const Type *Ty) {
assert(C->getType()->isInteger() && "Trunc operand must be integer");
assert(Ty->isIntegral() && "Trunc produces only integral");
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
