[TCWG CI] 453.povray failed to build after llvm: [SLP]Fix reused extracts cost.

After llvm commit ba74bb3a226e1b4660537f274627285b1bf41ee1 Author: Alexey Bataev [SLP]Fix reused extracts cost. the following benchmarks slowed down by more than 2%: - 453.povray failed to build Below reproducer instructions can be used to re-build both "first_bad" and "last_good" cross-to

[TCWG CI] 453.povray slowed down by 3% after llvm: [llvm] Use range-based for loops (NFC)

After llvm commit f240e528cea25fd2a9ae01b1e1fe77f507ed7a2c Author: Kazu Hirata [llvm] Use range-based for loops (NFC) the following benchmarks slowed down by more than 2%: - 453.povray slowed down by 3% from 4906 to 5047 perf samples Below reproducer instructions can be used to re-build bot