//===----------------------------------------------------------------------===//
#include "llvm/Support/ConstantRange.h"
-
+#include "llvm/IR/Instructions.h"
#include "gtest/gtest.h"
using namespace llvm;
TEST_F(ConstantRangeTest, Basics) {
EXPECT_TRUE(Full.isFullSet());
EXPECT_FALSE(Full.isEmptySet());
+ EXPECT_TRUE(Full.inverse().isEmptySet());
EXPECT_FALSE(Full.isWrappedSet());
EXPECT_TRUE(Full.contains(APInt(16, 0x0)));
EXPECT_TRUE(Full.contains(APInt(16, 0x9)));
EXPECT_FALSE(Empty.isFullSet());
EXPECT_TRUE(Empty.isEmptySet());
+ EXPECT_TRUE(Empty.inverse().isFullSet());
EXPECT_FALSE(Empty.isWrappedSet());
EXPECT_FALSE(Empty.contains(APInt(16, 0x0)));
EXPECT_FALSE(Empty.contains(APInt(16, 0x9)));
EXPECT_TRUE(One.contains(APInt(16, 0xa)));
EXPECT_FALSE(One.contains(APInt(16, 0xaa9)));
EXPECT_FALSE(One.contains(APInt(16, 0xaaa)));
+ EXPECT_FALSE(One.inverse().contains(APInt(16, 0xa)));
EXPECT_FALSE(Some.isFullSet());
EXPECT_FALSE(Some.isEmptySet());
}
TEST_F(ConstantRangeTest, GetSetSize) {
- EXPECT_EQ(Full.getSetSize(), APInt(16, 0));
- EXPECT_EQ(Empty.getSetSize(), APInt(16, 0));
- EXPECT_EQ(One.getSetSize(), APInt(16, 1));
- EXPECT_EQ(Some.getSetSize(), APInt(16, 0xaa0));
- EXPECT_EQ(Wrap.getSetSize(), APInt(16, 0x10000 - 0xaa0));
+ EXPECT_EQ(Full.getSetSize(), APInt(17, 65536));
+ EXPECT_EQ(Empty.getSetSize(), APInt(17, 0));
+ EXPECT_EQ(One.getSetSize(), APInt(17, 1));
+ EXPECT_EQ(Some.getSetSize(), APInt(17, 0xaa0));
+
+ ConstantRange Wrap(APInt(4, 7), APInt(4, 3));
+ ConstantRange Wrap2(APInt(4, 8), APInt(4, 7));
+ EXPECT_EQ(Wrap.getSetSize(), APInt(5, 12));
+ EXPECT_EQ(Wrap2.getSetSize(), APInt(5, 15));
}
TEST_F(ConstantRangeTest, GetMinsAndMaxes) {
EXPECT_EQ(Some.getSignedMax(), APInt(16, 0xaa9));
EXPECT_EQ(Wrap.getSignedMax(), APInt(16, INT16_MAX));
- EXPECT_EQ(Full.getSignedMin(), APInt(16, INT16_MIN));
+ EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint64_t)INT16_MIN));
EXPECT_EQ(One.getSignedMin(), APInt(16, 0xa));
EXPECT_EQ(Some.getSignedMin(), APInt(16, 0xa));
- EXPECT_EQ(Wrap.getSignedMin(), APInt(16, INT16_MIN));
+ EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint64_t)INT16_MIN));
+
+ // Found by Klee
+ EXPECT_EQ(ConstantRange(APInt(4, 7), APInt(4, 0)).getSignedMax(),
+ APInt(4, 7));
+}
+
+TEST_F(ConstantRangeTest, SignWrapped) {
+ EXPECT_TRUE(Full.isSignWrappedSet());
+ EXPECT_FALSE(Empty.isSignWrappedSet());
+ EXPECT_FALSE(One.isSignWrappedSet());
+ EXPECT_FALSE(Some.isSignWrappedSet());
+ EXPECT_TRUE(Wrap.isSignWrappedSet());
+
+ EXPECT_FALSE(ConstantRange(APInt(8, 127), APInt(8, 128)).isSignWrappedSet());
+ EXPECT_TRUE(ConstantRange(APInt(8, 127), APInt(8, 129)).isSignWrappedSet());
+ EXPECT_FALSE(ConstantRange(APInt(8, 128), APInt(8, 129)).isSignWrappedSet());
+ EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 9)).isSignWrappedSet());
+ EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 250)).isSignWrappedSet());
+ EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 10)).isSignWrappedSet());
+ EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 251)).isSignWrappedSet());
}
TEST_F(ConstantRangeTest, Trunc) {
ConstantRange TWrap = Wrap.truncate(10);
EXPECT_TRUE(TFull.isFullSet());
EXPECT_TRUE(TEmpty.isEmptySet());
- EXPECT_EQ(TOne, ConstantRange(APInt(One.getLower()).trunc(10),
- APInt(One.getUpper()).trunc(10)));
- // TODO: ConstantRange is currently over-conservative here.
+ EXPECT_EQ(TOne, ConstantRange(One.getLower().trunc(10),
+ One.getUpper().trunc(10)));
EXPECT_TRUE(TSome.isFullSet());
}
ConstantRange ZWrap = Wrap.zeroExtend(20);
EXPECT_EQ(ZFull, ConstantRange(APInt(20, 0), APInt(20, 0x10000)));
EXPECT_TRUE(ZEmpty.isEmptySet());
- EXPECT_EQ(ZOne, ConstantRange(APInt(One.getLower()).zext(20),
- APInt(One.getUpper()).zext(20)));
- EXPECT_EQ(ZSome, ConstantRange(APInt(Some.getLower()).zext(20),
- APInt(Some.getUpper()).zext(20)));
- EXPECT_EQ(ZWrap, ConstantRange(APInt(Wrap.getLower()).zext(20),
- APInt(Wrap.getUpper()).zext(20)));
+ EXPECT_EQ(ZOne, ConstantRange(One.getLower().zext(20),
+ One.getUpper().zext(20)));
+ EXPECT_EQ(ZSome, ConstantRange(Some.getLower().zext(20),
+ Some.getUpper().zext(20)));
+ EXPECT_EQ(ZWrap, ConstantRange(APInt(20, 0), APInt(20, 0x10000)));
+
+ // zext([5, 0), 3->7) = [5, 8)
+ ConstantRange FiveZero(APInt(3, 5), APInt(3, 0));
+ EXPECT_EQ(FiveZero.zeroExtend(7), ConstantRange(APInt(7, 5), APInt(7, 8)));
}
TEST_F(ConstantRangeTest, SExt) {
ConstantRange SOne = One.signExtend(20);
ConstantRange SSome = Some.signExtend(20);
ConstantRange SWrap = Wrap.signExtend(20);
- EXPECT_EQ(SFull, ConstantRange(APInt(20, INT16_MIN, true),
- APInt(20, INT16_MAX, true)));
+ EXPECT_EQ(SFull, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true),
+ APInt(20, INT16_MAX + 1, true)));
EXPECT_TRUE(SEmpty.isEmptySet());
- EXPECT_EQ(SOne, ConstantRange(APInt(One.getLower()).sext(20),
- APInt(One.getUpper()).sext(20)));
- EXPECT_EQ(SSome, ConstantRange(APInt(Some.getLower()).sext(20),
- APInt(Some.getUpper()).sext(20)));
- EXPECT_EQ(SWrap, ConstantRange(APInt(Wrap.getLower()).sext(20),
- APInt(Wrap.getUpper()).sext(20)));
+ EXPECT_EQ(SOne, ConstantRange(One.getLower().sext(20),
+ One.getUpper().sext(20)));
+ EXPECT_EQ(SSome, ConstantRange(Some.getLower().sext(20),
+ Some.getUpper().sext(20)));
+ EXPECT_EQ(SWrap, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true),
+ APInt(20, INT16_MAX + 1, true)));
+
+ EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, 140)).signExtend(16),
+ ConstantRange(APInt(16, -128), APInt(16, 128)));
}
TEST_F(ConstantRangeTest, IntersectWith) {
- EXPECT_TRUE(Empty.intersectWith(Full).isEmptySet());
- EXPECT_TRUE(Empty.intersectWith(Empty).isEmptySet());
- EXPECT_TRUE(Empty.intersectWith(One).isEmptySet());
- EXPECT_TRUE(Empty.intersectWith(Some).isEmptySet());
- EXPECT_TRUE(Empty.intersectWith(Wrap).isEmptySet());
- EXPECT_TRUE(Full.intersectWith(Full).isFullSet());
- EXPECT_TRUE(Some.intersectWith(Some) == Some);
- EXPECT_TRUE(Some.intersectWith(One) == One);
- EXPECT_TRUE(Full.intersectWith(One) == One);
- EXPECT_TRUE(Full.intersectWith(Some) == Some);
- EXPECT_TRUE(Some.intersectWith(Wrap).isEmptySet());
- EXPECT_TRUE(One.intersectWith(Wrap).isEmptySet());
+ EXPECT_EQ(Empty.intersectWith(Full), Empty);
+ EXPECT_EQ(Empty.intersectWith(Empty), Empty);
+ EXPECT_EQ(Empty.intersectWith(One), Empty);
+ EXPECT_EQ(Empty.intersectWith(Some), Empty);
+ EXPECT_EQ(Empty.intersectWith(Wrap), Empty);
+ EXPECT_EQ(Full.intersectWith(Full), Full);
+ EXPECT_EQ(Some.intersectWith(Some), Some);
+ EXPECT_EQ(Some.intersectWith(One), One);
+ EXPECT_EQ(Full.intersectWith(One), One);
+ EXPECT_EQ(Full.intersectWith(Some), Some);
+ EXPECT_EQ(Some.intersectWith(Wrap), Empty);
+ EXPECT_EQ(One.intersectWith(Wrap), Empty);
EXPECT_EQ(One.intersectWith(Wrap), Wrap.intersectWith(One));
-}
-TEST_F(ConstantRangeTest, MaximalIntersectWith) {
- EXPECT_TRUE(Empty.maximalIntersectWith(Full).isEmptySet());
- EXPECT_TRUE(Empty.maximalIntersectWith(Empty).isEmptySet());
- EXPECT_TRUE(Empty.maximalIntersectWith(One).isEmptySet());
- EXPECT_TRUE(Empty.maximalIntersectWith(Some).isEmptySet());
- EXPECT_TRUE(Empty.maximalIntersectWith(Wrap).isEmptySet());
- EXPECT_TRUE(Full.maximalIntersectWith(Full).isFullSet());
- EXPECT_TRUE(Some.maximalIntersectWith(Some) == Some);
- EXPECT_TRUE(Some.maximalIntersectWith(One) == One);
- EXPECT_TRUE(Full.maximalIntersectWith(One) == One);
- EXPECT_TRUE(Full.maximalIntersectWith(Some) == Some);
- EXPECT_TRUE(Some.maximalIntersectWith(Wrap).isEmptySet());
- EXPECT_TRUE(One.maximalIntersectWith(Wrap).isEmptySet());
- EXPECT_EQ(One.maximalIntersectWith(Wrap), Wrap.maximalIntersectWith(One));
+ // Klee generated testcase from PR4545.
+ // The intersection of i16 [4, 2) and [6, 5) is disjoint, looking like
+ // 01..4.6789ABCDEF where the dots represent values not in the intersection.
+ ConstantRange LHS(APInt(16, 4), APInt(16, 2));
+ ConstantRange RHS(APInt(16, 6), APInt(16, 5));
+ EXPECT_TRUE(LHS.intersectWith(RHS) == LHS);
+
+ // previous bug: intersection of [min, 3) and [2, max) should be 2
+ LHS = ConstantRange(APInt(32, -2147483646), APInt(32, 3));
+ RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483646));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2)));
+
+ // [2, 0) /\ [4, 3) = [2, 0)
+ LHS = ConstantRange(APInt(32, 2), APInt(32, 0));
+ RHS = ConstantRange(APInt(32, 4), APInt(32, 3));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2), APInt(32, 0)));
+
+ // [2, 0) /\ [4, 2) = [4, 0)
+ LHS = ConstantRange(APInt(32, 2), APInt(32, 0));
+ RHS = ConstantRange(APInt(32, 4), APInt(32, 2));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 0)));
+
+ // [4, 2) /\ [5, 1) = [5, 1)
+ LHS = ConstantRange(APInt(32, 4), APInt(32, 2));
+ RHS = ConstantRange(APInt(32, 5), APInt(32, 1));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 5), APInt(32, 1)));
+
+ // [2, 0) /\ [7, 4) = [7, 4)
+ LHS = ConstantRange(APInt(32, 2), APInt(32, 0));
+ RHS = ConstantRange(APInt(32, 7), APInt(32, 4));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 7), APInt(32, 4)));
+
+ // [4, 2) /\ [1, 0) = [1, 0)
+ LHS = ConstantRange(APInt(32, 4), APInt(32, 2));
+ RHS = ConstantRange(APInt(32, 1), APInt(32, 0));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 2)));
+
+ // [15, 0) /\ [7, 6) = [15, 0)
+ LHS = ConstantRange(APInt(32, 15), APInt(32, 0));
+ RHS = ConstantRange(APInt(32, 7), APInt(32, 6));
+ EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 15), APInt(32, 0)));
}
TEST_F(ConstantRangeTest, UnionWith) {
EXPECT_EQ(Wrap.unionWith(One),
ConstantRange(APInt(16, 0xaaa), APInt(16, 0xb)));
EXPECT_EQ(One.unionWith(Wrap), Wrap.unionWith(One));
- EXPECT_TRUE(Empty.unionWith(Empty).isEmptySet());
- EXPECT_TRUE(Full.unionWith(Full).isFullSet());
- EXPECT_TRUE(Some.unionWith(Wrap).isFullSet());
+ EXPECT_EQ(Empty.unionWith(Empty), Empty);
+ EXPECT_EQ(Full.unionWith(Full), Full);
+ EXPECT_EQ(Some.unionWith(Wrap), Full);
+
+ // PR4545
+ EXPECT_EQ(ConstantRange(APInt(16, 14), APInt(16, 1)).unionWith(
+ ConstantRange(APInt(16, 0), APInt(16, 8))),
+ ConstantRange(APInt(16, 14), APInt(16, 8)));
+ EXPECT_EQ(ConstantRange(APInt(16, 6), APInt(16, 4)).unionWith(
+ ConstantRange(APInt(16, 4), APInt(16, 0))),
+ ConstantRange(16));
+ EXPECT_EQ(ConstantRange(APInt(16, 1), APInt(16, 0)).unionWith(
+ ConstantRange(APInt(16, 2), APInt(16, 1))),
+ ConstantRange(16));
+}
+
+TEST_F(ConstantRangeTest, SetDifference) {
+ EXPECT_EQ(Full.difference(Empty), Full);
+ EXPECT_EQ(Full.difference(Full), Empty);
+ EXPECT_EQ(Empty.difference(Empty), Empty);
+ EXPECT_EQ(Empty.difference(Full), Empty);
+
+ ConstantRange A(APInt(16, 3), APInt(16, 7));
+ ConstantRange B(APInt(16, 5), APInt(16, 9));
+ ConstantRange C(APInt(16, 3), APInt(16, 5));
+ ConstantRange D(APInt(16, 7), APInt(16, 9));
+ ConstantRange E(APInt(16, 5), APInt(16, 4));
+ ConstantRange F(APInt(16, 7), APInt(16, 3));
+ EXPECT_EQ(A.difference(B), C);
+ EXPECT_EQ(B.difference(A), D);
+ EXPECT_EQ(E.difference(A), F);
}
TEST_F(ConstantRangeTest, SubtractAPInt) {
- EXPECT_TRUE(Full.subtract(APInt(16, 4)).isFullSet());
- EXPECT_TRUE(Empty.subtract(APInt(16, 4)).isEmptySet());
+ EXPECT_EQ(Full.subtract(APInt(16, 4)), Full);
+ EXPECT_EQ(Empty.subtract(APInt(16, 4)), Empty);
EXPECT_EQ(Some.subtract(APInt(16, 4)),
ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6)));
EXPECT_EQ(Wrap.subtract(APInt(16, 4)),
}
TEST_F(ConstantRangeTest, Add) {
- EXPECT_TRUE(Full.add(APInt(16, 4)).isFullSet());
+ EXPECT_EQ(Full.add(APInt(16, 4)), Full);
+ EXPECT_EQ(Full.add(Full), Full);
EXPECT_EQ(Full.add(Empty), Empty);
EXPECT_EQ(Full.add(One), Full);
EXPECT_EQ(Full.add(Some), Full);
EXPECT_EQ(Empty.add(One), Empty);
EXPECT_EQ(Empty.add(Some), Empty);
EXPECT_EQ(Empty.add(Wrap), Empty);
- EXPECT_TRUE(Empty.add(APInt(16, 4)).isEmptySet());
+ EXPECT_EQ(Empty.add(APInt(16, 4)), Empty);
EXPECT_EQ(Some.add(APInt(16, 4)),
ConstantRange(APInt(16, 0xe), APInt(16, 0xaae)));
EXPECT_EQ(Wrap.add(APInt(16, 4)),
ConstantRange(APInt(16, 0xe)));
}
+TEST_F(ConstantRangeTest, Sub) {
+ EXPECT_EQ(Full.sub(APInt(16, 4)), Full);
+ EXPECT_EQ(Full.sub(Full), Full);
+ EXPECT_EQ(Full.sub(Empty), Empty);
+ EXPECT_EQ(Full.sub(One), Full);
+ EXPECT_EQ(Full.sub(Some), Full);
+ EXPECT_EQ(Full.sub(Wrap), Full);
+ EXPECT_EQ(Empty.sub(Empty), Empty);
+ EXPECT_EQ(Empty.sub(One), Empty);
+ EXPECT_EQ(Empty.sub(Some), Empty);
+ EXPECT_EQ(Empty.sub(Wrap), Empty);
+ EXPECT_EQ(Empty.sub(APInt(16, 4)), Empty);
+ EXPECT_EQ(Some.sub(APInt(16, 4)),
+ ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6)));
+ EXPECT_EQ(Some.sub(Some),
+ ConstantRange(APInt(16, 0xf561), APInt(16, 0xaa0)));
+ EXPECT_EQ(Wrap.sub(APInt(16, 4)),
+ ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6)));
+ EXPECT_EQ(One.sub(APInt(16, 4)),
+ ConstantRange(APInt(16, 0x6)));
+}
+
TEST_F(ConstantRangeTest, Multiply) {
EXPECT_EQ(Full.multiply(Full), Full);
EXPECT_EQ(Full.multiply(Empty), Empty);
EXPECT_EQ(Empty.multiply(One), Empty);
EXPECT_EQ(Empty.multiply(Some), Empty);
EXPECT_EQ(Empty.multiply(Wrap), Empty);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(One.multiply(One), Full);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(One.multiply(Some), Full);
- // TODO: ConstantRange is currently over-conservative here.
+ EXPECT_EQ(One.multiply(One), ConstantRange(APInt(16, 0xa*0xa),
+ APInt(16, 0xa*0xa + 1)));
+ EXPECT_EQ(One.multiply(Some), ConstantRange(APInt(16, 0xa*0xa),
+ APInt(16, 0xa*0xaa9 + 1)));
EXPECT_EQ(One.multiply(Wrap), Full);
- // TODO: ConstantRange is currently over-conservative here.
EXPECT_EQ(Some.multiply(Some), Full);
- // TODO: ConstantRange is currently over-conservative here.
EXPECT_EQ(Some.multiply(Wrap), Full);
- // TODO: ConstantRange is currently over-conservative here.
EXPECT_EQ(Wrap.multiply(Wrap), Full);
+
+ ConstantRange Zero(APInt(16, 0));
+ EXPECT_EQ(Zero.multiply(Full), Zero);
+ EXPECT_EQ(Zero.multiply(Some), Zero);
+ EXPECT_EQ(Zero.multiply(Wrap), Zero);
+ EXPECT_EQ(Full.multiply(Zero), Zero);
+ EXPECT_EQ(Some.multiply(Zero), Zero);
+ EXPECT_EQ(Wrap.multiply(Zero), Zero);
+
+ // http://llvm.org/PR4545
+ EXPECT_EQ(ConstantRange(APInt(4, 1), APInt(4, 6)).multiply(
+ ConstantRange(APInt(4, 6), APInt(4, 2))),
+ ConstantRange(4, /*isFullSet=*/true));
}
TEST_F(ConstantRangeTest, UMax) {
- EXPECT_TRUE(Full.umax(Full).isFullSet());
- EXPECT_TRUE(Full.umax(Empty).isEmptySet());
+ EXPECT_EQ(Full.umax(Full), Full);
+ EXPECT_EQ(Full.umax(Empty), Empty);
EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0)));
- EXPECT_TRUE(Full.umax(Wrap).isFullSet());
+ EXPECT_EQ(Full.umax(Wrap), Full);
EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0)));
EXPECT_EQ(Empty.umax(Empty), Empty);
EXPECT_EQ(Empty.umax(Some), Empty);
}
TEST_F(ConstantRangeTest, SMax) {
- EXPECT_TRUE(Full.smax(Full).isFullSet());
- EXPECT_TRUE(Full.smax(Empty).isEmptySet());
+ EXPECT_EQ(Full.smax(Full), Full);
+ EXPECT_EQ(Full.smax(Empty), Empty);
EXPECT_EQ(Full.smax(Some), ConstantRange(APInt(16, 0xa),
- APInt::getSignedMinValue(16)));
- EXPECT_TRUE(Full.smax(Wrap).isFullSet());
+ APInt::getSignedMinValue(16)));
+ EXPECT_EQ(Full.smax(Wrap), Full);
EXPECT_EQ(Full.smax(One), ConstantRange(APInt(16, 0xa),
- APInt::getSignedMinValue(16)));
+ APInt::getSignedMinValue(16)));
EXPECT_EQ(Empty.smax(Empty), Empty);
EXPECT_EQ(Empty.smax(Some), Empty);
EXPECT_EQ(Empty.smax(Wrap), Empty);
EXPECT_EQ(Empty.smax(One), Empty);
EXPECT_EQ(Some.smax(Some), Some);
EXPECT_EQ(Some.smax(Wrap), ConstantRange(APInt(16, 0xa),
- APInt(16, INT16_MIN)));
+ APInt(16, (uint64_t)INT16_MIN)));
EXPECT_EQ(Some.smax(One), Some);
EXPECT_EQ(Wrap.smax(One), ConstantRange(APInt(16, 0xa),
- APInt(16, INT16_MIN)));
+ APInt(16, (uint64_t)INT16_MIN)));
EXPECT_EQ(One.smax(One), One);
}
TEST_F(ConstantRangeTest, UDiv) {
EXPECT_EQ(Full.udiv(Full), Full);
EXPECT_EQ(Full.udiv(Empty), Empty);
- EXPECT_EQ(Full.udiv(One), Full);
- EXPECT_EQ(Full.udiv(Some), Full);
+ EXPECT_EQ(Full.udiv(One), ConstantRange(APInt(16, 0),
+ APInt(16, 0xffff / 0xa + 1)));
+ EXPECT_EQ(Full.udiv(Some), ConstantRange(APInt(16, 0),
+ APInt(16, 0xffff / 0xa + 1)));
EXPECT_EQ(Full.udiv(Wrap), Full);
EXPECT_EQ(Empty.udiv(Empty), Empty);
EXPECT_EQ(Empty.udiv(One), Empty);
EXPECT_EQ(Empty.udiv(Some), Empty);
EXPECT_EQ(Empty.udiv(Wrap), Empty);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(One.udiv(One), Full);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(One.udiv(Some), Full);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(One.udiv(Wrap), Full);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(Some.udiv(Some), Full);
- // TODO: ConstantRange is currently over-conservative here.
- EXPECT_EQ(Some.udiv(Wrap), Full);
- // TODO: ConstantRange is currently over-conservative here.
+ EXPECT_EQ(One.udiv(One), ConstantRange(APInt(16, 1)));
+ EXPECT_EQ(One.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 2)));
+ EXPECT_EQ(One.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb)));
+ EXPECT_EQ(Some.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 0x111)));
+ EXPECT_EQ(Some.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa)));
EXPECT_EQ(Wrap.udiv(Wrap), Full);
}
+TEST_F(ConstantRangeTest, Shl) {
+ EXPECT_EQ(Full.shl(Full), Full);
+ EXPECT_EQ(Full.shl(Empty), Empty);
+ EXPECT_EQ(Full.shl(One), Full); // TODO: [0, (-1 << 0xa) + 1)
+ EXPECT_EQ(Full.shl(Some), Full); // TODO: [0, (-1 << 0xa) + 1)
+ EXPECT_EQ(Full.shl(Wrap), Full);
+ EXPECT_EQ(Empty.shl(Empty), Empty);
+ EXPECT_EQ(Empty.shl(One), Empty);
+ EXPECT_EQ(Empty.shl(Some), Empty);
+ EXPECT_EQ(Empty.shl(Wrap), Empty);
+ EXPECT_EQ(One.shl(One), ConstantRange(APInt(16, 0xa << 0xa),
+ APInt(16, (0xa << 0xa) + 1)));
+ EXPECT_EQ(One.shl(Some), Full); // TODO: [0xa << 0xa, 0)
+ EXPECT_EQ(One.shl(Wrap), Full); // TODO: [0xa, 0xa << 14 + 1)
+ EXPECT_EQ(Some.shl(Some), Full); // TODO: [0xa << 0xa, 0xfc01)
+ EXPECT_EQ(Some.shl(Wrap), Full); // TODO: [0xa, 0x7ff << 0x5 + 1)
+ EXPECT_EQ(Wrap.shl(Wrap), Full);
+}
+
+TEST_F(ConstantRangeTest, Lshr) {
+ EXPECT_EQ(Full.lshr(Full), Full);
+ EXPECT_EQ(Full.lshr(Empty), Empty);
+ EXPECT_EQ(Full.lshr(One), ConstantRange(APInt(16, 0),
+ APInt(16, (0xffff >> 0xa) + 1)));
+ EXPECT_EQ(Full.lshr(Some), ConstantRange(APInt(16, 0),
+ APInt(16, (0xffff >> 0xa) + 1)));
+ EXPECT_EQ(Full.lshr(Wrap), Full);
+ EXPECT_EQ(Empty.lshr(Empty), Empty);
+ EXPECT_EQ(Empty.lshr(One), Empty);
+ EXPECT_EQ(Empty.lshr(Some), Empty);
+ EXPECT_EQ(Empty.lshr(Wrap), Empty);
+ EXPECT_EQ(One.lshr(One), ConstantRange(APInt(16, 0)));
+ EXPECT_EQ(One.lshr(Some), ConstantRange(APInt(16, 0)));
+ EXPECT_EQ(One.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb)));
+ EXPECT_EQ(Some.lshr(Some), ConstantRange(APInt(16, 0),
+ APInt(16, (0xaaa >> 0xa) + 1)));
+ EXPECT_EQ(Some.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa)));
+ EXPECT_EQ(Wrap.lshr(Wrap), Full);
+}
+
+TEST(ConstantRange, MakeICmpRegion) {
+ // PR8250
+ ConstantRange SMax = ConstantRange(APInt::getSignedMaxValue(32));
+ EXPECT_TRUE(ConstantRange::makeICmpRegion(ICmpInst::ICMP_SGT,
+ SMax).isEmptySet());
+}
+
} // anonymous namespace
projects / oota-llvm.git / blobdiff