[BOLT] X86/clang-nolbr.test fails with assertion added in #68617

[aaupov]

d0584e2 breaks upstream binary test X86/clang-nolbr.test:
https://lab.llvm.org/buildbot/#/builders/244/builds/19433

BOLT crashes with assertion added in #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.

[llvmbot]

@llvm/issue-subscribers-bolt

Author: Amir Ayupov (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 #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.