JVM_IR more compact safe call chains (almost as old BE)

compiler/testData/codegen/bytecodeText/boxingOptimization/safeCallWithElvis.kt

@@ -6,9 +6,4 @@ fun check(a : A?) : Int {
 
 // 0 valueOf
 // 0 Value\s\(\)
-
-// JVM_TEMPLATES:
 // 0 ACONST_NULL
-
-// JVM_IR_TEMPLATES:
-// 1 ACONST_NULL

compiler/testData/codegen/bytecodeText/boxingOptimization/safeCallWithElvisMultipleFiles.kt

@@ -10,9 +10,4 @@ fun check(a : A?) : Int {
 
 // 0 valueOf
 // 0 Value\s\(\)
-
-// JVM_TEMPLATES:
 // 0 ACONST_NULL
-
-// JVM_IR_TEMPLATES:
-// 1 ACONST_NULL

compiler/testData/codegen/bytecodeText/forLoop/forInReversed/forInReversedEmptyRangeLiteral.kt

@@ -9,13 +9,13 @@
 
 fun box(): String {
     for (i in (4 .. 1).reversed()) {
-        throw AssertionError("Loop should not be executed")
+        throw AssertionError("Loop over empty Int range should not be executed")
     }
     for (i in (4L .. 1L).reversed()) {
-        throw AssertionError("Loop should not be executed")
+        throw AssertionError("Loop over empty Long range should not be executed")
     }
     for (i in ('D' .. 'A').reversed()) {
-        throw AssertionError("Loop should not be executed")
+        throw AssertionError("Loop over empty Char range should not be executed")
     }
     return "OK"
 }
@@ -29,8 +29,14 @@ fun box(): String {
 // 0 getStep
 
 // JVM_IR_TEMPLATES
+// Int- and Char-based loops are completely elimiated
 // 0 ILOAD
-// 2 ISTORE
+// 0 ISTORE
 // 0 IADD
 // 0 ISUB
-// 0 IINC
+// 0 IINC
+// 3 LLOAD
+// 2 LSTORE
+// 1 LADD
+// 0 LSUB
+// 4 LDC

compiler/testData/codegen/bytecodeText/forLoop/unsigned/forInDownToUIntMinValue.kt

@@ -33,8 +33,8 @@ fun f(a: UInt): Int {
 
 
 // JVM_IR_TEMPLATES
-// 6 ILOAD
-// 4 ISTORE
+// 5 ILOAD
+// 3 ISTORE
 // 0 IADD
 // 0 ISUB
 // 2 IINC

compiler/testData/codegen/bytecodeText/inline/inlineSuspendReifiedNoSpilling.kt

@@ -30,4 +30,4 @@ suspend fun ApplicationCall.test(authenticationService: AuthenticationService) {
 // 0 ILOAD 3
 // 0 ILOAD 2
 // 1 \$i\$f\$receiveJSON I .* 2
-// 3 \$i\$f\$respond I .* 3
+// 2 \$i\$f\$respond I .* 3

compiler/testData/codegen/bytecodeText/inline/linenumberForOneParametersArgumentCall.kt

@@ -10,4 +10,4 @@ inline fun lookAtMe(f: (String) -> Unit) {
     f(a) // Should be no unneeded nops on this line, that might be generated for zero-parameters lambda
 }
 
-// 2 NOP
+// 0 NOP

compiler/testData/codegen/bytecodeText/intConstantNullableSafeCall.kt

@@ -2,8 +2,4 @@ val a : Int? = 10
 
 fun foo() = a?.toString()
 
-// JVM_TEMPLATES
 // 1 IFNULL
-
-// JVM_IR_TEMPLATES
-// 1 IFNONNULL

compiler/testData/codegen/bytecodeText/nullCheckOptimization/safeCallAndElvisChains.kt

@@ -13,6 +13,6 @@ class A(val x: String) {
 // 2 ACONST_NULL
 
 // JVM_IR_TEMPLATES
-// 0 IFNULL
-// 4 IFNONNULL
-// 0 ACONST_NULL
+// 4 IFNULL
+// 2 IFNONNULL
+// 2 ACONST_NULL

compiler/testData/codegen/bytecodeText/temporaryVals/notNullReceiversInChain.kt

@@ -0,0 +1,17 @@
+class A(val b: B)
+class B(val c: C)
+class C(val s: String)
+
+fun test(na: A?) =
+    na?.b?.c?.s
+
+// 1 POP
+// 1 ACONST_NULL
+
+// JVM_IR_TEMPLATES
+// 1 DUP
+// 1 IFNULL
+
+// JVM_TEMPLATES
+// 3 DUP
+// 3 IFNULL

compiler/testData/codegen/bytecodeText/temporaryVals/safeCallElvisSafeCallElvisSomething.kt

@@ -0,0 +1,11 @@
+fun test(a: Any?, b: Any?, c: String) =
+    a?.toString() ?: b?.toString() ?: c
+
+// 2 IFNULL
+// 1 ACONST_NULL
+
+// JVM_IR_TEMPLATES
+// 1 IFNONNULL
+
+// JVM_TEMPLATES
+// 2 IFNONNULL

compiler/testData/codegen/bytecodeText/temporaryVals/safeCallWithElvis.kt

@@ -0,0 +1,17 @@
+fun test(a: Any?) =
+    a?.toString()?.hashCode() ?: 0
+
+// 1 ALOAD
+// 0 ASTORE
+// 0 ISTORE
+// 0 ILOAD
+// 1 POP
+// 0 valueOf
+
+// JVM_IR_TEMPLATES
+// 1 DUP
+// 1 IFNULL
+
+// JVM_TEMPLATES
+// 2 DUP
+// 2 IFNULL