3 Commits

Author	SHA1	Message	Date
zhongyunde 00443407	2bd568fecc	[ValueTracking] Infer relationship for the select with SLT	2024-08-06 10:30:04 +08:00
zhongyunde 00443407	3023713014	[ValueTracking] Infer relationship for the select with ICmp ... x -nsw y < -C is false when x > y and C >= 0 Alive2 proof for sgt, sge : https://alive2.llvm.org/ce/z/tupvfi Note: It only really makes sense in the context of signed comparison for "X - Y must be positive if X >= Y and no overflow". Fixes https://github.com/llvm/llvm-project/issues/54735	2024-08-06 10:30:03 +08:00
zhongyunde 00443407	c41da14570	[tests] precommit tests for ValueTracking ... x-y+1 is positive when x > y, so abs (x-y+1) --> x-y+1 Fixes https://github.com/llvm/llvm-project/issues/54735	2024-08-06 10:30:03 +08:00