[llvm-branch-commits] [llvm] release/18.x: [PPCMergeStringPool] Only replace constant once (#92996) (PR #93442)

[Nikita Popov via llvm-branch-commits]

nikic wrote:

> What release note should we use for this change?

Something like this maybe?

> Fix a regression from the 18.1.6 release, which could result in compiler crashes in the PPCMergeStringPool pass when compiling for PowerPC targets.

https://github.com/llvm/llvm-project/pull/93442