| Issue |
71064
|
| Summary |
[BOLT] X86/clang-nolbr.test fails with assertion added in #68617
|
| Labels |
BOLT
|
| Assignees |
spupyrev
|
| Reporter |
aaupov
|
https://github.com/llvm/llvm-project/commit/d0584e248d2dc9e9f425caed5983282e2749159d breaks upstream binary test `X86/clang-nolbr.test`:
https://lab.llvm.org/buildbot/#/builders/244/builds/19433
BOLT crashes with assertion added in https://github.com/llvm/llvm-project/pull/68617:
```
llvm-bolt.old: /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/llvm-project/llvm/lib/Transforms/Utils/CodeLayout.cpp:767: void {anonymous}::ExtTSPImpl::mergeChainPairs(): Assertion `minDensity > 0.0 && maxDensity > 0.0 && "incorrectly computed chain densities"' failed.
```
The test uses no-LBR (IP sampling) profile.
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