llvm-project

3b38314a - Reapply "[InstCombine] Preserve profile after folding select instructions with conditionals" (#161885) (#161890)

Reapply "[InstCombine] Preserve profile after folding select instructions with conditionals" (#161885) (#161890) This reverts commit 572b579632fb79ea6eb562a537c9ff1280b3d4f5. This is a reland of #159666 but with a fix moving the `extern` declaration of the flag under the LLVM namespace, which is needed to fix a linker error caused by #161240.