//===----------------------------------------------------------------------===//
#include <ostream>
-#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SmallString.h"
}
TEST(APIntTest, fromString) {
- EXPECT_EQ(APInt(1, 0), APInt(1, "0", 1, 10));
- EXPECT_EQ(APInt(1, 1), APInt(1, "1", 1, 10));
- EXPECT_EQ(APInt(1, 1), APInt(1, "-1", 2, 10));
- EXPECT_EQ(APInt(1, 1), APInt(1, "1", 1, 2));
- EXPECT_EQ(APInt(1, 1), APInt(1, "1", 1, 8));
- EXPECT_EQ(APInt(1, 1), APInt(1, "1", 1, 16));
+ EXPECT_EQ(APInt(32, 0), APInt(32, "0", 2));
+ EXPECT_EQ(APInt(32, 1), APInt(32, "1", 2));
+ EXPECT_EQ(APInt(32, 2), APInt(32, "10", 2));
+ EXPECT_EQ(APInt(32, 3), APInt(32, "11", 2));
+ EXPECT_EQ(APInt(32, 4), APInt(32, "100", 2));
+
+ EXPECT_EQ(APInt(32, 0), APInt(32, "+0", 2));
+ EXPECT_EQ(APInt(32, 1), APInt(32, "+1", 2));
+ EXPECT_EQ(APInt(32, 2), APInt(32, "+10", 2));
+ EXPECT_EQ(APInt(32, 3), APInt(32, "+11", 2));
+ EXPECT_EQ(APInt(32, 4), APInt(32, "+100", 2));
+
+ EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 2));
+ EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 2));
+ EXPECT_EQ(APInt(32, uint64_t(-2LL)), APInt(32, "-10", 2));
+ EXPECT_EQ(APInt(32, uint64_t(-3LL)), APInt(32, "-11", 2));
+ EXPECT_EQ(APInt(32, uint64_t(-4LL)), APInt(32, "-100", 2));
+
+
+ EXPECT_EQ(APInt(32, 0), APInt(32, "0", 8));
+ EXPECT_EQ(APInt(32, 1), APInt(32, "1", 8));
+ EXPECT_EQ(APInt(32, 7), APInt(32, "7", 8));
+ EXPECT_EQ(APInt(32, 8), APInt(32, "10", 8));
+ EXPECT_EQ(APInt(32, 15), APInt(32, "17", 8));
+ EXPECT_EQ(APInt(32, 16), APInt(32, "20", 8));
+
+ EXPECT_EQ(APInt(32, +0), APInt(32, "+0", 8));
+ EXPECT_EQ(APInt(32, +1), APInt(32, "+1", 8));
+ EXPECT_EQ(APInt(32, +7), APInt(32, "+7", 8));
+ EXPECT_EQ(APInt(32, +8), APInt(32, "+10", 8));
+ EXPECT_EQ(APInt(32, +15), APInt(32, "+17", 8));
+ EXPECT_EQ(APInt(32, +16), APInt(32, "+20", 8));
+
+ EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 8));
+ EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 8));
+ EXPECT_EQ(APInt(32, uint64_t(-7LL)), APInt(32, "-7", 8));
+ EXPECT_EQ(APInt(32, uint64_t(-8LL)), APInt(32, "-10", 8));
+ EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-17", 8));
+ EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-20", 8));
+
+
+ EXPECT_EQ(APInt(32, 0), APInt(32, "0", 10));
+ EXPECT_EQ(APInt(32, 1), APInt(32, "1", 10));
+ EXPECT_EQ(APInt(32, 9), APInt(32, "9", 10));
+ EXPECT_EQ(APInt(32, 10), APInt(32, "10", 10));
+ EXPECT_EQ(APInt(32, 19), APInt(32, "19", 10));
+ EXPECT_EQ(APInt(32, 20), APInt(32, "20", 10));
+
+ EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 10));
+ EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 10));
+ EXPECT_EQ(APInt(32, uint64_t(-9LL)), APInt(32, "-9", 10));
+ EXPECT_EQ(APInt(32, uint64_t(-10LL)), APInt(32, "-10", 10));
+ EXPECT_EQ(APInt(32, uint64_t(-19LL)), APInt(32, "-19", 10));
+ EXPECT_EQ(APInt(32, uint64_t(-20LL)), APInt(32, "-20", 10));
+
+
+ EXPECT_EQ(APInt(32, 0), APInt(32, "0", 16));
+ EXPECT_EQ(APInt(32, 1), APInt(32, "1", 16));
+ EXPECT_EQ(APInt(32, 15), APInt(32, "F", 16));
+ EXPECT_EQ(APInt(32, 16), APInt(32, "10", 16));
+ EXPECT_EQ(APInt(32, 31), APInt(32, "1F", 16));
+ EXPECT_EQ(APInt(32, 32), APInt(32, "20", 16));
+
+ EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 16));
+ EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 16));
+ EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-F", 16));
+ EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-10", 16));
+ EXPECT_EQ(APInt(32, uint64_t(-31LL)), APInt(32, "-1F", 16));
+ EXPECT_EQ(APInt(32, uint64_t(-32LL)), APInt(32, "-20", 16));
+}
+
+TEST(APIntTest, StringBitsNeeded2) {
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 2));
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "1", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "10", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "11", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded("100", 2));
+
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 2));
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+1", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "+10", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "+11", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded("+100", 2));
+
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-1", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "-10", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "-11", 2));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("-100", 2));
+}
+
+TEST(APIntTest, StringBitsNeeded8) {
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "0", 8));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "7", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("10", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("17", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("20", 8));
+
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "+0", 8));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "+7", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+10", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+17", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+20", 8));
+
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "-0", 8));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "-7", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-10", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-17", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-20", 8));
+}
+
+TEST(APIntTest, StringBitsNeeded10) {
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 10));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "3", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "9", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("10", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("19", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("20", 10));
+
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+9", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("+10", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("+19", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("+20", 10));
+
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-9", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("-10", 10));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10));
+}
+
+TEST(APIntTest, StringBitsNeeded16) {
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "0", 16));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("10", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("1F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("20", 16));
+
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+0", 16));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+10", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+1F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+20", 16));
+
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-0", 16));
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-F", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-10", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-1F", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16));
+}
+
+TEST(APIntTest, Log2) {
+ EXPECT_EQ(APInt(15, 7).logBase2(), 2U);
+ EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U);
+ EXPECT_EQ(APInt(15, 7).exactLogBase2(), -1);
+ EXPECT_EQ(APInt(15, 8).logBase2(), 3U);
+ EXPECT_EQ(APInt(15, 8).ceilLogBase2(), 3U);
+ EXPECT_EQ(APInt(15, 8).exactLogBase2(), 3);
+ EXPECT_EQ(APInt(15, 9).logBase2(), 3U);
+ EXPECT_EQ(APInt(15, 9).ceilLogBase2(), 4U);
+ EXPECT_EQ(APInt(15, 9).exactLogBase2(), -1);
+}
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+TEST(APIntTest, StringDeath) {
+ EXPECT_DEATH(APInt(0, "", 0), "Bitwidth too small");
+ EXPECT_DEATH(APInt(32, "", 0), "Invalid string length");
+ EXPECT_DEATH(APInt(32, "0", 0), "Radix should be 2, 8, 10, or 16!");
+ EXPECT_DEATH(APInt(32, "", 10), "Invalid string length");
+ EXPECT_DEATH(APInt(32, "-", 10), "String is only a sign, needs a value.");
+ EXPECT_DEATH(APInt(1, "1234", 10), "Insufficient bit width");
+ EXPECT_DEATH(APInt(32, "\0", 10), "Invalid string length");
+ EXPECT_DEATH(APInt(32, StringRef("1\02", 3), 10), "Invalid character in digit string");
+ EXPECT_DEATH(APInt(32, "1L", 10), "Invalid character in digit string");
}
+#endif
+#endif
}
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