diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt
index e07029121d5..41eecd7089f 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt
@@ -13,6 +13,8 @@ typealias ExecutableFile = String
 internal abstract class PlatformFlags(val distribution: Distribution) {
     val properties = distribution.properties
 
+    abstract val llvmLtoNooptFlags: List<String>
+    abstract val llvmLtoOptFlags: List<String>
     abstract val llvmLtoFlags: List<String>
     abstract val llvmLlcFlags: List<String>
 
@@ -28,6 +30,8 @@ internal abstract class PlatformFlags(val distribution: Distribution) {
 internal open class MacOSPlatform(distribution: Distribution)
     : PlatformFlags(distribution) {
 
+    override val llvmLtoNooptFlags = properties.propertyList("llvmLtoNooptFlags.osx")
+    override val llvmLtoOptFlags = properties.propertyList("llvmLtoOptFlags.osx")
     override val llvmLtoFlags = properties.propertyList("llvmLtoFlags.osx")
     override val llvmLlcFlags = properties.propertyList("llvmLlcFlags.osx")
 
@@ -45,7 +49,7 @@ internal open class MacOSPlatform(distribution: Distribution)
     override fun linkCommand(objectFiles: List<String>, executable: String, optimize: Boolean): List<String> {
 
         return mutableListOf<String>(linker, "-demangle") +
-            if (optimize) listOf("-object_path_lto", "temporary.o", "-lto_library", distribution.libLTO) else {listOf<String>()} +
+            listOf("-object_path_lto", "temporary.o", "-lto_library", distribution.libLTO) +
             listOf( "-dynamic", "-arch", arch) +
             osVersionMin +
             listOf("-syslibroot", "$targetSysRoot",
@@ -83,6 +87,8 @@ internal open class LinuxPlatform(distribution: Distribution)
     val llvmLib = distribution.llvmLib
     val libGcc = distribution.libGcc
 
+    override val llvmLtoNooptFlags = properties.propertyList("llvmLtoNooptFlags.linux")
+    override val llvmLtoOptFlags = properties.propertyList("llvmLtoOptFlags.linux")
     override val llvmLtoFlags = properties.propertyList("llvmLtoFlags.linux")
     override val llvmLlcFlags = properties.propertyList("llvmLlcFlags.linux")
 
@@ -181,8 +187,11 @@ internal class LinkStage(val context: Context) {
 
         val tool = distribution.llvmLto
         val command = mutableListOf(tool, "-o", combined)
+        command.addAll(platform.llvmLtoFlags)
         if (optimize) {
-            command.addAll(platform.llvmLtoFlags)
+            command.addAll(platform.llvmLtoOptFlags)
+        } else {
+            command.addAll(platform.llvmLtoNooptFlags)
         }
         command.addAll(files)
         runTool(*command.toTypedArray())
@@ -273,7 +282,9 @@ internal class LinkStage(val context: Context) {
             objectFiles = if (optimize) {
                 listOf( llvmLto(bitcodeFiles ) )
             } else {
-                bitcodeFiles.map{ it -> llvmLlc(it) }
+                listOf( llvmLto(bitcodeFiles ) )
+                // Or, alternatively, go through llc bitcode compiler.
+                //bitcodeFiles.map{ it -> llvmLlc(it) }
             }
         }
         phaser.phase(KonanPhase.LINKER) {
diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/LlvmDeclarations.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/LlvmDeclarations.kt
index 488444ef22f..97eba1d293c 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/LlvmDeclarations.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/LlvmDeclarations.kt
@@ -3,6 +3,7 @@ package org.jetbrains.kotlin.backend.konan.llvm
 import kotlinx.cinterop.*
 import llvm.*
 import org.jetbrains.kotlin.backend.konan.Context
+import org.jetbrains.kotlin.backend.konan.KonanConfigKeys
 import org.jetbrains.kotlin.backend.konan.descriptors.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.ir.IrElement
@@ -336,6 +337,10 @@ private class DeclarationsGeneratorVisitor(override val context: Context) :
             LLVMAddFunction(context.llvmModule, symbolName, llvmFunctionType)!!
         }
 
+        if (!context.config.configuration.getBoolean(KonanConfigKeys.OPTIMIZATION)) {
+            LLVMAddTargetDependentFunctionAttr(llvmFunction, "no-frame-pointer-elim", "true")
+        }
+
         this.functions[descriptor] = FunctionLlvmDeclarations(llvmFunction)
     }
 }
diff --git a/backend.native/konan.properties b/backend.native/konan.properties
index ec2c04b25e6..f8962db1db1 100644
--- a/backend.native/konan.properties
+++ b/backend.native/konan.properties
@@ -8,7 +8,9 @@ arch.osx = x86_64
 sysRoot.osx = target-sysroot-1-darwin-macos
 libffiDir.osx = libffi-3.2.1-2-darwin-macos
 llvmHome.osx = clang+llvm-3.9.0-darwin-macos
-llvmLtoFlags.osx = -O3 -function-sections -exported-symbol=_Konan_main
+llvmLtoFlags.osx = -exported-symbol=_Konan_main
+llvmLtoOptFlags.osx = -O3 -function-sections
+llvmLtoNooptFlags.osx = -O1
 llvmLlcFlags.osx = -mtriple=x86_64-apple-macosx10.10.0 --disable-fp-elim
 linkerKonanFlags.osx = -lc++
 linkerOptimizationFlags.osx = -dead_strip
@@ -22,7 +24,6 @@ sysRoot.osx-ios = target-sysroot-1-darwin-macos
 targetSysRoot.osx-ios = target-sysroot-2-darwin-ios
 libffiDir.osx-ios = libffi-3.2.1-2-darwin-ios
 llvmHome.osx-ios = clang+llvm-3.9.0-darwin-macos
-llvmLtoFlags.osx-ios = -O3 -function-sections -exported-symbol=_Konan_main
 llvmLlcFlags.osx-ios = -mtriple=arm64-apple-ios5.0.0 --disable-fp-elim
 linkerKonanFlags.osx-ios = -lc++
 linkerOptimizationFlags.osx-ios = -dead_strip
@@ -39,7 +40,6 @@ sysRoot.osx-ios-sim = target-sysroot-1-darwin-macos
 targetSysRoot.osx-ios-sim = target-sysroot-1-darwin-ios-sim
 libffiDir.osx-ios-sim = libffi-3.2.1-2-darwin-ios-sim
 llvmHome.osx-ios-sim = clang+llvm-3.9.0-darwin-macos
-llvmLtoFlags.osx-ios-sim = -O3 -function-sections -exported-symbol=_Konan_main
 llvmLlcFlags.osx-ios-sim = -mtriple=x86_64-apple-ios5.0.0 --disable-fp-elim
 linkerKonanFlags.osx-ios-sim = -lc++
 linkerOptimizationFlags.osx-ios-sim = -dead_strip
@@ -56,7 +56,9 @@ libffiDir.linux = libffi-3.2.1-2-linux-x86-64
 llvmHome.linux = clang+llvm-3.9.0-linux-x86-64
 libGcc.linux = target-gcc-toolchain-3-linux-x86-64/lib/gcc/x86_64-unknown-linux-gnu/4.8.5
 gccToolChain.linux = target-gcc-toolchain-3-linux-x86-64
-llvmLtoFlags.linux = -O3 -function-sections -exported-symbol=Konan_main
+llvmLtoFlags.linux = -exported-symbol=Konan_main
+llvmLtoOptFlags.linux = -O3 -function-sections
+llvmLtoNooptFlags.linux = -O1
 llvmLlcFlags.linux = -march=x86-64
 linkerKonanFlags.linux = -Bstatic -lstdc++ -Bdynamic -ldl -lm -lpthread
 linkerOptimizationFlags.linux = --gc-sections
@@ -72,7 +74,6 @@ libffiDir.linux-raspberrypi = libffi-3.2.1-2-raspberrypi
 llvmHome.linux-raspberrypi = clang+llvm-3.9.0-linux-x86-64
 libGcc.linux-raspberrypi = target-sysroot-1-raspberrypi/lib/gcc/arm-linux-gnueabihf/4.8.3/
 gccToolChain.linux-raspberrypi = target-gcc-toolchain-3-linux-x86-64
-llvmLtoFlags.linux-raspberrypi = -O3 -function-sections -exported-symbol=Konan_main
 llvmLlcFlags.linux-raspberrypi = -mtriple=armv7-unknown-linux-gnueabihf --disable-fp-elim -float-abi=hard
 linkerKonanFlags.linux-raspberrypi = -Bstatic -lstdc++ -Bdynamic -ldl -lm -lc -lpthread -fuse-ld=gold
 entrySelector.linux-raspberrypi = --defsym main=Konan_main