diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala')
-rw-r--r-- | src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala b/src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala index 9660d878eb..809b9e310d 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/opt/Inliner.scala @@ -25,6 +25,9 @@ class Inliner[BT <: BTypes](val btypes: BT) { import inlinerHeuristics._ import backendUtils._ + case class InlineLog(request: InlineRequest, sizeBefore: Int, sizeAfter: Int, sizeInlined: Int, warning: Option[CannotInlineWarning]) + var inlineLog: List[InlineLog] = Nil + def runInliner(): Unit = { for (request <- collectAndOrderInlineRequests) { val Right(callee) = request.callsite.callee // collectAndOrderInlineRequests returns callsites with a known callee @@ -42,6 +45,29 @@ class Inliner[BT <: BTypes](val btypes: BT) { } } } + + if (compilerSettings.YoptLogInline.isSetByUser) { + val methodPrefix = { val p = compilerSettings.YoptLogInline.value; if (p == "_") "" else p } + val byCallsiteMethod = inlineLog.groupBy(_.request.callsite.callsiteMethod).toList.sortBy(_._2.head.request.callsite.callsiteClass.internalName) + for ((m, mLogs) <- byCallsiteMethod) { + val initialSize = mLogs.minBy(_.sizeBefore).sizeBefore + val firstLog = mLogs.head + val methodName = s"${firstLog.request.callsite.callsiteClass.internalName}.${m.name}" + if (methodName.startsWith(methodPrefix)) { + println(s"Inlining into $methodName (initially $initialSize instructions, ultimately ${m.instructions.size}):") + val byCallee = mLogs.groupBy(_.request.callsite.callee.get).toList.sortBy(_._2.length).reverse + for ((c, cLogs) <- byCallee) { + val first = cLogs.head + if (first.warning.isEmpty) { + val num = if (cLogs.tail.isEmpty) "" else s" ${cLogs.length} times" + println(s" - Inlined ${c.calleeDeclarationClass.internalName}.${c.callee.name} (${first.sizeInlined} instructions)$num: ${first.request.reason}") + } else + println(s" - Failed to inline ${c.calleeDeclarationClass.internalName}.${c.callee.name} (${first.request.reason}): ${first.warning.get}") + } + println() + } + } + } } /** @@ -184,7 +210,7 @@ class Inliner[BT <: BTypes](val btypes: BT) { def impl(post: InlineRequest, at: Callsite): List[InlineRequest] = { post.callsite.inlinedClones.find(_.clonedWhenInlining == at) match { case Some(clonedCallsite) => - List(InlineRequest(clonedCallsite.callsite, post.post)) + List(InlineRequest(clonedCallsite.callsite, post.post, post.reason)) case None => post.post.flatMap(impl(_, post.callsite)).flatMap(impl(_, at)) } @@ -199,9 +225,17 @@ class Inliner[BT <: BTypes](val btypes: BT) { * @return An inliner warning for each callsite that could not be inlined. */ def inline(request: InlineRequest): List[CannotInlineWarning] = canInlineBody(request.callsite) match { - case Some(w) => List(w) + case Some(w) => + if (compilerSettings.YoptLogInline.isSetByUser) { + val size = request.callsite.callsiteMethod.instructions.size + inlineLog ::= InlineLog(request, size, size, 0, Some(w)) + } + List(w) case None => + val sizeBefore = request.callsite.callsiteMethod.instructions.size inlineCallsite(request.callsite) + if (compilerSettings.YoptLogInline.isSetByUser) + inlineLog ::= InlineLog(request, sizeBefore, request.callsite.callsiteMethod.instructions.size, request.callsite.callee.get.callee.instructions.size, None) val postRequests = request.post.flatMap(adaptPostRequestForMainCallsite(_, request.callsite)) postRequests flatMap inline } |