[Configurables] Remove unused entities

konan/konan.properties

@@ -331,7 +331,6 @@ linkerKonanFlags.linux_x64 = -Bstatic -lstdc++ -Bdynamic -ldl -lm -lpthread \
 linkerOptimizationFlags.linux_x64 = --gc-sections
 linkerNoDebugFlags.linux_x64 = -S
 linkerDynamicFlags.linux_x64 = -shared
-pluginOptimizationFlags.linux_x64 = -plugin-opt=target-cpu x86-64 -plugin-opt=O3
 dynamicLinker.linux_x64 = /lib64/ld-linux-x86-64.so.2
 # targetSysRoot relative
 abiSpecificLibraries.linux_x64 = ../lib64 lib64 usr/lib64

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/ClangArgs.kt

@@ -353,7 +353,7 @@ class ClangArgs(private val configurables: Configurables) : Configurables by con
     }
 
     private val extraHostClangArgs =
-            if (configurables is LinuxBasedConfigurables) {
+            if (configurables is LinuxConfigurables) {
                 listOf("--gcc-toolchain=${configurables.absoluteGccToolchain}")
             } else {
                 emptyList()

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Configurables.kt

@@ -43,8 +43,6 @@ interface Configurables : TargetableExternalStorage {
     val linkerKonanFlags get() = targetList("linkerKonanFlags")
     val linkerNoDebugFlags get() = targetList("linkerNoDebugFlags")
     val linkerDynamicFlags get() = targetList("linkerDynamicFlags")
-    val llvmDebugOptFlags get() = targetList("llvmDebugOptFlags")
-    val llvmDebugLlcFlags get() = targetList("llvmDebugLlcFlags")
     val targetSysRoot get() = targetString("targetSysRoot")
 
     // Notice: these ones are host-target.
@@ -69,19 +67,15 @@ interface AppleConfigurables : Configurables, ClangFlags {
 
 interface MingwConfigurables : TargetableConfigurables, ClangFlags
 
-interface LinuxBasedConfigurables : TargetableConfigurables, ClangFlags {
+interface LinuxConfigurables : TargetableConfigurables, ClangFlags {
     val gccToolchain get() = hostString("gccToolchain")
     val absoluteGccToolchain get() = absolute(gccToolchain)
 
     val libGcc get() = targetString("libGcc")!!
     val dynamicLinker get() = targetString("dynamicLinker")!!
-    val pluginOptimizationFlags get() = targetList("pluginOptimizationFlags")
     val abiSpecificLibraries get() = targetList("abiSpecificLibraries")
 }
 
-interface LinuxConfigurables : LinuxBasedConfigurables
-interface LinuxMIPSConfigurables : LinuxBasedConfigurables
-interface RaspberryPiConfigurables : LinuxBasedConfigurables
 interface AndroidConfigurables : TargetableConfigurables, ClangFlags
 
 interface WasmConfigurables : TargetableConfigurables, ClangFlags, LldFlags

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/ConfigurablesImpl.kt

@@ -21,9 +21,6 @@ import org.jetbrains.kotlin.konan.properties.*
 class LinuxConfigurablesImpl(target: KonanTarget, properties: Properties, baseDir: String?)
     : LinuxConfigurables, KonanPropertiesLoader(target, properties, baseDir)
 
-class LinuxMIPSConfigurablesImpl(target: KonanTarget, properties: Properties, baseDir: String?)
-    : LinuxMIPSConfigurables, KonanPropertiesLoader(target, properties, baseDir)
-
 class AndroidConfigurablesImpl(target: KonanTarget, properties: Properties, baseDir: String?)
     : AndroidConfigurables, KonanPropertiesLoader(target, properties, baseDir)
 
@@ -38,11 +35,9 @@ class ZephyrConfigurablesImpl(target: KonanTarget, properties: Properties, baseD
 
 
 fun loadConfigurables(target: KonanTarget, properties: Properties, baseDir: String?): Configurables = when (target)  {
-        KonanTarget.LINUX_X64, KonanTarget.LINUX_ARM32_HFP, KonanTarget.LINUX_ARM64 ->
-            LinuxConfigurablesImpl(target, properties, baseDir)
-
+        KonanTarget.LINUX_X64, KonanTarget.LINUX_ARM32_HFP, KonanTarget.LINUX_ARM64,
         KonanTarget.LINUX_MIPS32, KonanTarget.LINUX_MIPSEL32 ->
-            LinuxMIPSConfigurablesImpl(target, properties, baseDir)
+            LinuxConfigurablesImpl(target, properties, baseDir)
 
         KonanTarget.MACOS_X64,
         KonanTarget.IOS_ARM32, KonanTarget.IOS_ARM64, KonanTarget.IOS_X64,

shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Linker.kt

@@ -67,12 +67,6 @@ abstract class LinkerFlags(val configurables: Configurables)
     protected val llvmBin = "${configurables.absoluteLlvmHome}/bin"
     protected val llvmLib = "${configurables.absoluteLlvmHome}/lib"
 
-    private val libLTODir = when (HostManager.host) {
-        KonanTarget.MACOS_X64, KonanTarget.LINUX_X64 -> llvmLib
-        KonanTarget.MINGW_X64 -> llvmBin
-        else -> error("Don't know libLTO location for this platform.")
-    }
-
     open val useCompilerDriverAsLinker: Boolean get() = false // TODO: refactor.
 
     // TODO: Number of arguments is quite big. Better to pass args via object.
@@ -295,8 +289,8 @@ open class MacOSBasedLinker(targetProperties: AppleConfigurables)
             listOf(dsymutil, "-dump-debug-map", executable)
 }
 
-open class LinuxBasedLinker(targetProperties: LinuxBasedConfigurables)
-    : LinkerFlags(targetProperties), LinuxBasedConfigurables by targetProperties {
+open class LinuxBasedLinker(targetProperties: LinuxConfigurables)
+    : LinkerFlags(targetProperties), LinuxConfigurables by targetProperties {
 
     private val ar = if (HostManager.hostIsMac) "$absoluteTargetToolchain/bin/llvm-ar"
         else "$absoluteTargetToolchain/bin/ar"
@@ -323,7 +317,7 @@ open class LinuxBasedLinker(targetProperties: LinuxBasedConfigurables)
         if (kind == LinkerOutputKind.STATIC_LIBRARY)
             return staticGnuArCommands(ar, executable, objectFiles, libraries)
 
-        val isMips = (configurables is LinuxMIPSConfigurables)
+        val isMips = target == KonanTarget.LINUX_MIPS32 || target == KonanTarget.LINUX_MIPSEL32
         val dynamic = kind == LinkerOutputKind.DYNAMIC_LIBRARY
         val crtPrefix = if (configurables.target == KonanTarget.LINUX_ARM64) "usr/lib" else "usr/lib64"
         // TODO: Can we extract more to the konan.configurables?
@@ -489,11 +483,10 @@ open class ZephyrLinker(targetProperties: ZephyrConfigurables)
 
 fun linker(configurables: Configurables): LinkerFlags =
         when (configurables.target) {
-            KonanTarget.LINUX_X64, KonanTarget.LINUX_ARM32_HFP,  KonanTarget.LINUX_ARM64 ->
-                LinuxBasedLinker(configurables as LinuxConfigurables)
-
+            KonanTarget.LINUX_X64,
+            KonanTarget.LINUX_ARM32_HFP,  KonanTarget.LINUX_ARM64,
             KonanTarget.LINUX_MIPS32, KonanTarget.LINUX_MIPSEL32 ->
-                LinuxBasedLinker(configurables as LinuxMIPSConfigurables)
+                LinuxBasedLinker(configurables as LinuxConfigurables)
 
             KonanTarget.MACOS_X64,
             KonanTarget.TVOS_X64, KonanTarget.TVOS_ARM64,