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| author | Schuyler Eldridge <schuyler.eldridge@sifive.com> | 2021-11-30 00:47:08 -0500 |
|---|---|---|
| committer | Schuyler Eldridge <schuyler.eldridge@sifive.com> | 2021-11-30 17:03:12 -0500 |
| commit | 63f417ef39963afa9722a7b3c5cf3b28a9d41883 (patch) | |
| tree | 1449b06641d65a75af52e887c98ee08adba00d41 /llvm/unittests/ADT/APIntTest.cpp | |
| parent | aeeacbd989fc474d920afa1b1dd3fb4ef502c726 (diff) | |
| download | llvm-63f417ef39963afa9722a7b3c5cf3b28a9d41883.zip llvm-63f417ef39963afa9722a7b3c5cf3b28a9d41883.tar.gz llvm-63f417ef39963afa9722a7b3c5cf3b28a9d41883.tar.bz2 | |
[ADT] Remove 0-width Asserts in APInt.getZExtValue
Remove assertion that disallows getting a zero-extended value from a
zero-width APInt. This check is too restrictive and makes it difficult
to use APInt to model zero-width things, e.g., zero-width wires in the
CIRCT project.
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>
Reviewed By: lattner, darthscsi, nikic
Differential Revision: https://reviews.llvm.org/D114768
Diffstat (limited to 'llvm/unittests/ADT/APIntTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APIntTest.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp index 8a731633..95cb213 100644 --- a/llvm/unittests/ADT/APIntTest.cpp +++ b/llvm/unittests/ADT/APIntTest.cpp @@ -3054,6 +3054,9 @@ TEST(APIntTest, ZeroWidth) { EXPECT_EQ(0U, APInt(4, 3).trunc(0).getBitWidth()); EXPECT_TRUE(ZW.isAllOnes()); + // Zero extension. + EXPECT_EQ(0U, ZW.getZExtValue()); + SmallString<42> STR; ZW.toStringUnsigned(STR); EXPECT_EQ("0", STR); |