6 Commits

Author	SHA1	Message	Date
Dmitry Petrov	84e54124a2	More aggressive DCE should honor debugger invariants ... - A LINENUMEBER node is "dead" if the corresponding instruction interval contains at least one "dead" bytecode instruction and no live bytecode instructions - Observable local variable lifetimes should be taken into account when determining if a NOP is required for debugger.	2017-05-16 17:28:43 +03:00
Dmitry Petrov	4dd100122b	Explicitly remove NOPs inserted for bytecode analysis in post-conditional loops. ... Remove redundant NOPs during bytecode optimization. NOP instruction is required iff one of the following is true: (a) it is a first bytecode instruction in a try-catch block (JVM BE assumption); (b) it is a sole bytecode instruction in a source code line (breakpoints on that line will not work). All other NOP instructions can be removed. Note that it doesn't really affect the performance for mature JVM implementations. However, the perceived quality of the generated code is somewhat improved :). Related: KT-15609	2017-01-13 10:31:07 +03:00
Dmitry Petrov	a5d6559056	KT-14360 Microoptimizations in RedundantCoercionToUnitTransformer	2016-10-17 10:13:03 +03:00
Nikolay Krasko	87b628a3f7	Generate 'nop' instruction on lambda call when everything on line is going to be eliminated by inliner (KT-6477) ... (cherry picked from commit 462bdb2) #KT-6477 Fixed	2016-10-14 14:52:06 +03:00
Ilya Gorbunov	17e7c269ad	Minor: make tryInlined test not depend on 'Closeable.use' implementation.	2016-07-01 04:42:38 +03:00
Dmitry Petrov	f1b061d662	Optimize coercion to Unit. ... POP operations are backward-propagated. Operation can't be transformed if its result is moved within stack (by DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, or SWAP). Unnecessary operations are replaced with NOPs (for debugger). Unnecessary NOPs are removed. KT-9922 Suboptimal generation for simple safe call with unused return value KT-11116 Optimize methods returning Unit	2016-04-07 11:40:58 +03:00