Changes in directory llvm/include/llvm/Target:
TargetLowering.h updated: 1.93 -> 1.94
---
Log message:
Add getTypeToExpandTo() which recursively walks TransformToType to determine
the intrinsic type to expand to.
---
Diffs of the changes: (+20 -0)
TargetLowering.h | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+)
Index: llvm/include/llvm/Target/TargetLowering.h
diff -u llvm/include/llvm/Target/TargetLowering.h:1.93
llvm/include/llvm/Target/TargetLowering.h:1.94
--- llvm/include/llvm/Target/TargetLowering.h:1.93 Wed Dec 13 00:12:35 2006
+++ llvm/include/llvm/Target/TargetLowering.h Wed Dec 13 14:52:00 2006
@@ -176,6 +176,26 @@
return TransformToType[VT];
}
+ /// getTypeToExpandTo - For types supported by the target, this is an
+ /// identity function. For types that must be expanded (i.e. integer types
+ /// that are larger than the largest integer register or illegal floating
+ /// point types), this returns the largest legal type it will be expanded to.
+ MVT::ValueType getTypeToExpandTo(MVT::ValueType VT) const {
+ while (true) {
+ switch (getTypeAction(VT)) {
+ case Legal:
+ return VT;
+ case Expand:
+ VT = TransformToType[VT];
+ break;
+ default:
+ assert(false && "Type is not legal nor is it to be expanded!");
+ return VT;
+ }
+ }
+ return VT;
+ }
+
/// getPackedTypeBreakdown - Packed types are broken down into some number of
/// legal first class types. For example, <8 x float> maps to 2 MVT::v4f32
/// with Altivec or SSE1, or 8 promoted MVT::f64 values with the X86 FP
stack.
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