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| author | Peter Rong <PeterRong96@gmail.com> | 2022-12-08 16:59:22 -0800 |
|---|---|---|
| committer | Peter Rong <PeterRong96@gmail.com> | 2022-12-15 10:06:26 -0800 |
| commit | 55968109d1f9c8655d30928b9fde9993e341c97f (patch) | |
| tree | 3aa06cbc7a948176b4c935edfc3c6297355acae1 /llvm/unittests/Analysis/ValueTrackingTest.cpp | |
| parent | 80f2f1eabc491cde39d543e4ebda93e2d2974d1f (diff) | |
| download | llvm-55968109d1f9c8655d30928b9fde9993e341c97f.zip llvm-55968109d1f9c8655d30928b9fde9993e341c97f.tar.gz llvm-55968109d1f9c8655d30928b9fde9993e341c97f.tar.bz2 | |
[APInt] provide a safe API for zext value and sext value.
Currently, APInt::getSExtValue and getZExtValue crashes on values with more than 64 bits.
Users may accidently crash the compiler with this setting when the integer may be i128.
As shown in https://github.com/llvm/llvm-project/issues/59316
In this patch we provide a trySExtValue and tryZExtValue to return an Optional, the user
needs to explictly unwrap it and condsier the possibility where there my no value in it.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D139683
Diffstat (limited to 'llvm/unittests/Analysis/ValueTrackingTest.cpp')
0 files changed, 0 insertions, 0 deletions