From 0b989a03b9ddd44dddf467bb321b90e1b24ef401 Mon Sep 17 00:00:00 2001 From: Simon Pilgrim Date: Fri, 4 Feb 2022 17:06:48 +0000 Subject: [PATCH] [Support] Add isShiftedMask_32/isShiftedMask_64 unit test coverage --- llvm/unittests/Support/MathExtrasTest.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/llvm/unittests/Support/MathExtrasTest.cpp b/llvm/unittests/Support/MathExtrasTest.cpp index 6088fdc..cf055c6 100644 --- a/llvm/unittests/Support/MathExtrasTest.cpp +++ b/llvm/unittests/Support/MathExtrasTest.cpp @@ -175,6 +175,20 @@ TEST(MathExtras, reverseBits) { EXPECT_EQ(0x5400000000000000ULL, reverseBits(NZ64)); } +TEST(MathExtras, isShiftedMask_32) { + EXPECT_FALSE(isShiftedMask_32(0x01010101)); + EXPECT_TRUE(isShiftedMask_32(0xf0000000)); + EXPECT_TRUE(isShiftedMask_32(0xffff0000)); + EXPECT_TRUE(isShiftedMask_32(0xff << 1)); +} + +TEST(MathExtras, isShiftedMask_64) { + EXPECT_FALSE(isShiftedMask_64(0x0101010101010101ull)); + EXPECT_TRUE(isShiftedMask_64(0xf000000000000000ull)); + EXPECT_TRUE(isShiftedMask_64(0xffff000000000000ull)); + EXPECT_TRUE(isShiftedMask_64(0xffull << 55)); +} + TEST(MathExtras, isPowerOf2_32) { EXPECT_FALSE(isPowerOf2_32(0)); EXPECT_TRUE(isPowerOf2_32(1 << 6)); -- 2.7.4