llvm-project

3cd9e276 - [IRNormalizer] Keep memory accesses in program order (#237128)

[IRNormalizer] Keep memory accesses in program order (#237128) IRNormalizer can move a load past a store to the same address, changing the value it reads. Include memory-accessing instructions in the initial top-down traversal so memory accesses retain their relative order within each basic block. Alive2 (IRNormalizer load/store ordering): Before (miscompiles 42 -> 7): https://alive2.llvm.org/ce/z/6VYPd5 After (verifies): https://alive2.llvm.org/ce/z/pY6t9g Fixes #236128. Assisted-by: Claude Code