Daniel Sanders 410cbf9d39 [tblgen] Add a timer covering the time spent reading the Instruction defs ... This patch adds a -time-regions option to tablegen that can enable timers (currently only one) that assess the performance of tablegen itself. This can be useful for identifying scaling problems with tablegen backends. This particular timer has allowed me to ignore time that is not attributed the GISel combiner pass. It's useful by itself but it is particularly useful in combination with https://reviews.llvm.org/D52954 which causes this period of time to be annotated within Xcode Instruments which in turn allows profile samples and recorded allocations attributed to reading instructions to be filtered out. llvm-svn: 353763		2019-02-11 23:02:02 +00:00
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llvm	[tblgen] Add a timer covering the time spent reading the Instruction defs	2019-02-11 23:02:02 +00:00
llvm-c	Implementation of asm-goto support in LLVM	2019-02-08 20:48:56 +00:00