3 Commits

Author	SHA1	Message	Date
Erik Eckstein	c343ab6907	ArrayElementValuePropagation: fix a wrong substituted function type for the generated reserveCapacity function call	2017-04-27 14:50:58 -07:00
Erik Eckstein	76eca003bb	ArrayElementValuePropagation: explicitly reserve space for new elements when doing the array-content-of optimization ... When Array.append(contentOf:) is replaced by individual Array.append(element) calls, an explicit reserveCapacityForAppend is inserted.	2017-04-27 09:06:56 -07:00
Erik Eckstein	777f5aaf7a	SILOptimizer: Replace [].append(contentsOf:) with [].append(element:) ... if the argument is an array literal. For example: arr += [1, 2, 3] is replaced by: arr.append(1) arr.append(2) arr.append(3) This gives considerable speedups up to 10x (for our micro-benchmarks which test this). This is based on the work of @ben-ng, who implemented the first version of this optimization (thanks!).	2017-03-31 17:16:31 -07:00