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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-03-13 05:12:32 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2016-03-13 05:12:32 +0000 |
| commit | 69fdf9b2e4669ffc69352f358b3b36828a9f4b57 (patch) | |
| tree | 5b2756e022252c644342cf2c2e06d99f3f82c93b /llvm/unittests/ADT/APFloatTest.cpp | |
| parent | afa31cf4ccbb733b18df34a79bb2db710931ea82 (diff) | |
| download | bcm5719-llvm-69fdf9b2e4669ffc69352f358b3b36828a9f4b57.tar.gz bcm5719-llvm-69fdf9b2e4669ffc69352f358b3b36828a9f4b57.zip | |
APFloat: Fix ilogb for denormals
llvm-svn: 263370
Diffstat (limited to 'llvm/unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APFloatTest.cpp | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/llvm/unittests/ADT/APFloatTest.cpp b/llvm/unittests/ADT/APFloatTest.cpp index 546973ca481..e78caf3b898 100644 --- a/llvm/unittests/ADT/APFloatTest.cpp +++ b/llvm/unittests/ADT/APFloatTest.cpp @@ -2821,6 +2821,19 @@ TEST(APFloatTest, abs) { } TEST(APFloatTest, ilogb) { + EXPECT_EQ(-1074, ilogb(APFloat::getSmallest(APFloat::IEEEdouble, false))); + EXPECT_EQ(-1074, ilogb(APFloat::getSmallest(APFloat::IEEEdouble, true))); + EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble, "0x1.ffffffffffffep-1024"))); + EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble, "0x1.ffffffffffffep-1023"))); + EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble, "-0x1.ffffffffffffep-1023"))); + EXPECT_EQ(-51, ilogb(APFloat(APFloat::IEEEdouble, "0x1p-51"))); + EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble, "0x1.c60f120d9f87cp-1023"))); + EXPECT_EQ(-2, ilogb(APFloat(APFloat::IEEEdouble, "0x0.ffffp-1"))); + EXPECT_EQ(-1023, ilogb(APFloat(APFloat::IEEEdouble, "0x1.fffep-1023"))); + EXPECT_EQ(1023, ilogb(APFloat::getLargest(APFloat::IEEEdouble, false))); + EXPECT_EQ(1023, ilogb(APFloat::getLargest(APFloat::IEEEdouble, true))); + + EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+0"))); EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "-0x1p+0"))); EXPECT_EQ(42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+42"))); @@ -2841,8 +2854,9 @@ TEST(APFloatTest, ilogb) { EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, false))); EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, true))); - EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, false))); - EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, true))); + + EXPECT_EQ(-149, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, false))); + EXPECT_EQ(-149, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, true))); EXPECT_EQ(-126, ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, false))); EXPECT_EQ(-126, |
