Changes in directory llvm/lib/Support:
ConstantRange.cpp updated: 1.40 -> 1.41
---
Log message:
Add getter methods for the extremes of a ConstantRange.
---
Diffs of the changes: (+64 -0)
ConstantRange.cpp | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 64 insertions(+)
Index: llvm/lib/Support/ConstantRange.cpp
diff -u llvm/lib/Support/ConstantRange.cpp:1.40
llvm/lib/Support/ConstantRange.cpp:1.41
--- llvm/lib/Support/ConstantRange.cpp:1.40 Thu Mar 1 21:33:05 2007
+++ llvm/lib/Support/ConstantRange.cpp Sat Mar 10 09:54:12 2007
@@ -84,6 +84,70 @@
return Upper - Lower;
}
+/// getUnsignedMax - Return the largest unsigned value contained in the
+/// ConstantRange.
+///
+APInt ConstantRange::getUnsignedMax() const {
+ if (isFullSet() || isWrappedSet())
+ return APInt::getMaxValue(getBitWidth());
+ else
+ return getUpper() - 1;
+}
+
+/// getUnsignedMin - Return the smallest unsigned value contained in the
+/// ConstantRange.
+///
+APInt ConstantRange::getUnsignedMin() const {
+ if (isFullSet() || (isWrappedSet() && getUpper() != 0))
+ return APInt::getMinValue(getBitWidth());
+ else
+ return getLower();
+}
+
+/// getSignedMax - Return the largest signed value contained in the
+/// ConstantRange.
+///
+APInt ConstantRange::getSignedMax() const {
+ APInt SignedMax = APInt::getSignedMaxValue(getBitWidth());
+ if (!isWrappedSet()) {
+ if (getLower().slt(getUpper() - 1))
+ return getUpper() - 1;
+ else
+ return SignedMax;
+ } else {
+ if ((getUpper() - 1).slt(getLower())) {
+ if (getLower() != SignedMax)
+ return SignedMax;
+ else
+ return getUpper() - 1;
+ } else {
+ return getUpper() - 1;
+ }
+ }
+}
+
+/// getSignedMin - Return the smallest signed value contained in the
+/// ConstantRange.
+///
+APInt ConstantRange::getSignedMin() const {
+ APInt SignedMin = APInt::getSignedMinValue(getBitWidth());
+ if (!isWrappedSet()) {
+ if (getLower().slt(getUpper() - 1))
+ return getLower();
+ else
+ return SignedMin;
+ } else {
+ if ((getUpper() - 1).slt(getLower())) {
+ if (getUpper() != SignedMin)
+ return SignedMin;
+ else
+ return getLower();
+ } else {
+ return getLower();
+ }
+ }
+}
+
/// contains - Return true if the specified value is in the set.
///
bool ConstantRange::contains(const APInt &V) const {
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