Hideto Ueno e996303431 [Attributor] AAValueConstantRange: Value range analysis using constant range ... This patch introduces `AAValueConstantRange`, which answers a possible range for integer value in a specific program point. One of the motivations is propagating existing `range` metadata. (I think we need to change the situation that `range` metadata cannot be put to Argument). The state is a tuple of `ConstantRange` and it is initialized to (known, assumed) = ([-∞, +∞], empty). Currently, AAValueConstantRange is created when AAValueSimplify cannot simplify the value. Supported - BinaryOperator(add, sub, ...) - CmpInst(icmp eq, ...) - !range metadata `AAValueConstantRange` is not intended to extend to polyhedral range value analysis. Reviewed By: jdoerfert Differential Revision: https://reviews.llvm.org/D71620		2020-01-01 15:35:56 +09:00
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llvm	[Attributor] AAValueConstantRange: Value range analysis using constant range	2020-01-01 15:35:56 +09:00
llvm-c	Rename DW_AT_LLVM_isysroot to DW_AT_LLVM_sysroot	2019-12-20 13:11:17 -08:00