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Sungkeun Cho 8fde3f2479 [cost] Revise CostDomain.plus functionality: zero+unreachable ... Summary: We defined cost's plus as "zero+unreachable = unreachable" for the operation cost. The meaning of the zero cost is that no statment is analyzed yet, and the unreachable(bottom) cost means a program point is analyzed as unreachable. We thought "zero+unreachable" happens in very specific cases we need to check, or due to an analyzer bug. For debugging purpose, we defined it to return more specific unreachable cost. However, in allocation/autoreleasepool costs, the zero cost is not very special value. If there is no alloc/autorelease calls, they can have the zero cost. "zero+unreachable = unreachable" doesn't make sense there. This diff changes the plus as "zero+unreachable = zero" for the non-operation costs. Reviewed By: ezgicicek Differential Revision: D23578869 fbshipit-source-id: 5392eca1c		4 years ago
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Makefile	[cost] Add tests run with ARC/non-ARC sources	4 years ago
arc_caller.m	[cost] Add tests run with ARC/non-ARC sources	4 years ago
basic.m	[cost] Revise CostDomain.plus functionality: zero+unreachable	4 years ago
cost-issues.exp	[cost] Add tests run with ARC/non-ARC sources	4 years ago
issues.exp	[cost] Autoreleasepool size analysis	4 years ago
no_arc_callee.h	[cost] Add tests run with ARC/non-ARC sources	4 years ago
no_arc_callee.m	[cost] Add tests run with ARC/non-ARC sources	4 years ago