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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-06-23 20:40:45 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-06-23 20:40:45 +0000 |
| commit | 0da818cdbb0a4b01e8d59f1050da8b4b2ea5624c (patch) | |
| tree | 507dd587f10a090933071a0eb7b770d6f1215184 /unittests/Support/ScaledNumberTest.cpp | |
| parent | 138222e56fae061b063203b502e1bd5241ea2584 (diff) | |
Support: Extract ScaledNumbers::matchScale()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211531 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests/Support/ScaledNumberTest.cpp')
| -rw-r--r-- | unittests/Support/ScaledNumberTest.cpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/unittests/Support/ScaledNumberTest.cpp b/unittests/Support/ScaledNumberTest.cpp index 4a274d7e50e2..550947b8ea3f 100644 --- a/unittests/Support/ScaledNumberTest.cpp +++ b/unittests/Support/ScaledNumberTest.cpp @@ -322,4 +322,68 @@ TEST(ScaledNumberHelpersTest, compare) { EXPECT_EQ(-1, compare(UINT64_MAX, 0, UINT64_C(1), 64)); } +TEST(ScaledNumberHelpersTest, matchScales) { + typedef std::tuple<uint32_t, int16_t, uint32_t, int16_t> Pair32; + typedef std::tuple<uint64_t, int16_t, uint64_t, int16_t> Pair64; + +#define MATCH_SCALES(T, LDIn, LSIn, RDIn, RSIn, LDOut, RDOut, SOut) \ + do { \ + T LDx = LDIn; \ + T RDx = RDIn; \ + T LDy = LDOut; \ + T RDy = RDOut; \ + int16_t LSx = LSIn; \ + int16_t RSx = RSIn; \ + int16_t Sy = SOut; \ + \ + matchScales(LDx, LSx, RDx, RSx); \ + EXPECT_EQ(LDy, LDx); \ + EXPECT_EQ(RDy, RDx); \ + if (LDy) \ + EXPECT_EQ(Sy, LSx); \ + if (RDy) \ + EXPECT_EQ(Sy, RSx); \ + } while (false) + + MATCH_SCALES(uint32_t, 0, 0, 0, 0, 0, 0, 0); + MATCH_SCALES(uint32_t, 0, 50, 7, 1, 0, 7, 1); + MATCH_SCALES(uint32_t, UINT32_C(1) << 31, 1, 9, 0, UINT32_C(1) << 31, 4, 1); + MATCH_SCALES(uint32_t, UINT32_C(1) << 31, 2, 9, 0, UINT32_C(1) << 31, 2, 2); + MATCH_SCALES(uint32_t, UINT32_C(1) << 31, 3, 9, 0, UINT32_C(1) << 31, 1, 3); + MATCH_SCALES(uint32_t, UINT32_C(1) << 31, 4, 9, 0, UINT32_C(1) << 31, 0, 4); + MATCH_SCALES(uint32_t, UINT32_C(1) << 30, 4, 9, 0, UINT32_C(1) << 31, 1, 3); + MATCH_SCALES(uint32_t, UINT32_C(1) << 29, 4, 9, 0, UINT32_C(1) << 31, 2, 2); + MATCH_SCALES(uint32_t, UINT32_C(1) << 28, 4, 9, 0, UINT32_C(1) << 31, 4, 1); + MATCH_SCALES(uint32_t, UINT32_C(1) << 27, 4, 9, 0, UINT32_C(1) << 31, 9, 0); + MATCH_SCALES(uint32_t, 7, 1, 0, 50, 7, 0, 1); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 31, 1, 4, UINT32_C(1) << 31, 1); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 31, 2, 2, UINT32_C(1) << 31, 2); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 31, 3, 1, UINT32_C(1) << 31, 3); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 31, 4, 0, UINT32_C(1) << 31, 4); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 30, 4, 1, UINT32_C(1) << 31, 3); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 29, 4, 2, UINT32_C(1) << 31, 2); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 28, 4, 4, UINT32_C(1) << 31, 1); + MATCH_SCALES(uint32_t, 9, 0, UINT32_C(1) << 27, 4, 9, UINT32_C(1) << 31, 0); + + MATCH_SCALES(uint64_t, 0, 0, 0, 0, 0, 0, 0); + MATCH_SCALES(uint64_t, 0, 100, 7, 1, 0, 7, 1); + MATCH_SCALES(uint64_t, UINT64_C(1) << 63, 1, 9, 0, UINT64_C(1) << 63, 4, 1); + MATCH_SCALES(uint64_t, UINT64_C(1) << 63, 2, 9, 0, UINT64_C(1) << 63, 2, 2); + MATCH_SCALES(uint64_t, UINT64_C(1) << 63, 3, 9, 0, UINT64_C(1) << 63, 1, 3); + MATCH_SCALES(uint64_t, UINT64_C(1) << 63, 4, 9, 0, UINT64_C(1) << 63, 0, 4); + MATCH_SCALES(uint64_t, UINT64_C(1) << 62, 4, 9, 0, UINT64_C(1) << 63, 1, 3); + MATCH_SCALES(uint64_t, UINT64_C(1) << 61, 4, 9, 0, UINT64_C(1) << 63, 2, 2); + MATCH_SCALES(uint64_t, UINT64_C(1) << 60, 4, 9, 0, UINT64_C(1) << 63, 4, 1); + MATCH_SCALES(uint64_t, UINT64_C(1) << 59, 4, 9, 0, UINT64_C(1) << 63, 9, 0); + MATCH_SCALES(uint64_t, 7, 1, 0, 100, 7, 0, 1); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 63, 1, 4, UINT64_C(1) << 63, 1); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 63, 2, 2, UINT64_C(1) << 63, 2); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 63, 3, 1, UINT64_C(1) << 63, 3); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 63, 4, 0, UINT64_C(1) << 63, 4); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 62, 4, 1, UINT64_C(1) << 63, 3); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 61, 4, 2, UINT64_C(1) << 63, 2); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 60, 4, 4, UINT64_C(1) << 63, 1); + MATCH_SCALES(uint64_t, 9, 0, UINT64_C(1) << 59, 4, 9, UINT64_C(1) << 63, 0); +} + } // end namespace |