ART: Refactor GraphVisualizer attribute printing

This patch unifies the way GraphVisualizer prints instruction
attributes in preparation of changes to the Checker syntax.

Change-Id: I44e91e36c660985ddfe039a9f410fedc48b496ec
diff --git a/test/445-checker-licm/src/Main.java b/test/445-checker-licm/src/Main.java
index 91ac2ed..c7a5f04 100644
--- a/test/445-checker-licm/src/Main.java
+++ b/test/445-checker-licm/src/Main.java
@@ -17,13 +17,13 @@
 public class Main {
 
   // CHECK-START: int Main.div() licm (before)
-  // CHECK-DAG: Div ( loop_header:{{B\d+}} )
+  // CHECK-DAG: Div loop:{{B\d+}}
 
   // CHECK-START: int Main.div() licm (after)
-  // CHECK-NOT: Div ( loop_header:{{B\d+}} )
+  // CHECK-NOT: Div loop:{{B\d+}}
 
   // CHECK-START: int Main.div() licm (after)
-  // CHECK-DAG: Div ( loop_header:null )
+  // CHECK-DAG: Div loop:none
 
   public static int div() {
     int result = 0;
@@ -34,13 +34,13 @@
   }
 
   // CHECK-START: int Main.innerDiv() licm (before)
-  // CHECK-DAG: Div ( loop_header:{{B\d+}} )
+  // CHECK-DAG: Div loop:{{B\d+}}
 
   // CHECK-START: int Main.innerDiv() licm (after)
-  // CHECK-NOT: Div ( loop_header:{{B\d+}} )
+  // CHECK-NOT: Div loop:{{B\d+}}
 
   // CHECK-START: int Main.innerDiv() licm (after)
-  // CHECK-DAG: Div ( loop_header:null )
+  // CHECK-DAG: Div loop:none
 
   public static int innerDiv() {
     int result = 0;
@@ -53,10 +53,10 @@
   }
 
   // CHECK-START: int Main.innerDiv2() licm (before)
-  // CHECK-DAG: Mul ( loop_header:{{B4}} )
+  // CHECK-DAG: Mul loop:B4
 
   // CHECK-START: int Main.innerDiv2() licm (after)
-  // CHECK-DAG: Mul ( loop_header:{{B2}} )
+  // CHECK-DAG: Mul loop:B2
 
   public static int innerDiv2() {
     int result = 0;
@@ -72,10 +72,10 @@
   }
 
   // CHECK-START: int Main.innerDiv3(int, int) licm (before)
-  // CHECK-DAG: Div ( loop_header:{{B\d+}} )
+  // CHECK-DAG: Div loop:{{B\d+}}
 
   // CHECK-START: int Main.innerDiv3(int, int) licm (after)
-  // CHECK-DAG: Div ( loop_header:{{B\d+}} )
+  // CHECK-DAG: Div loop:{{B\d+}}
 
   public static int innerDiv3(int a, int b) {
     int result = 0;
@@ -88,16 +88,16 @@
   }
 
   // CHECK-START: int Main.arrayLength(int[]) licm (before)
-  // CHECK-DAG: [[NullCheck:l\d+]] NullCheck ( loop_header:{{B\d+}} )
-  // CHECK-DAG:                    ArrayLength [ [[NullCheck]] ] ( loop_header:{{B\d+}} )
+  // CHECK-DAG: [[NullCheck:l\d+]] NullCheck loop:{{B\d+}}
+  // CHECK-DAG:                    ArrayLength [ [[NullCheck]] ] loop:{{B\d+}}
 
   // CHECK-START: int Main.arrayLength(int[]) licm (after)
-  // CHECK-NOT:                    NullCheck ( loop_header:{{B\d+}} )
-  // CHECK-NOT:                    ArrayLength ( loop_header:{{B\d+}} )
+  // CHECK-NOT:                    NullCheck loop:{{B\d+}}
+  // CHECK-NOT:                    ArrayLength loop:{{B\d+}}
 
   // CHECK-START: int Main.arrayLength(int[]) licm (after)
-  // CHECK-DAG: [[NullCheck:l\d+]] NullCheck ( loop_header:null )
-  // CHECK-DAG:                    ArrayLength [ [[NullCheck]] ] ( loop_header:null )
+  // CHECK-DAG: [[NullCheck:l\d+]] NullCheck loop:none
+  // CHECK-DAG:                    ArrayLength [ [[NullCheck]] ] loop:none
 
   public static int arrayLength(int[] array) {
     int result = 0;
diff --git a/test/476-checker-ctor-memory-barrier/src/Main.java b/test/476-checker-ctor-memory-barrier/src/Main.java
index 10aa2ab..769ae20 100644
--- a/test/476-checker-ctor-memory-barrier/src/Main.java
+++ b/test/476-checker-ctor-memory-barrier/src/Main.java
@@ -17,7 +17,7 @@
 
 class ClassWithoutFinals {
   // CHECK-START: void ClassWithoutFinals.<init>() register (after)
-  // CHECK-NOT: MemoryBarrier {{StoreStore}}
+  // CHECK-NOT: MemoryBarrier kind:StoreStore
   public ClassWithoutFinals() {}
 }
 
@@ -26,7 +26,7 @@
   public ClassWithFinals obj;
 
   // CHECK-START: void ClassWithFinals.<init>(boolean) register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
   public ClassWithFinals(boolean cond) {
@@ -38,7 +38,7 @@
   }
 
   // CHECK-START: void ClassWithFinals.<init>() register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
   public ClassWithFinals() {
@@ -46,8 +46,8 @@
   }
 
   // CHECK-START: void ClassWithFinals.<init>(int) register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
   public ClassWithFinals(int x) {
@@ -61,7 +61,7 @@
 
 class InheritFromClassWithFinals extends ClassWithFinals {
   // CHECK-START: void InheritFromClassWithFinals.<init>() register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
 
@@ -75,7 +75,7 @@
   // CHECK:     InvokeStaticOrDirect
 
   // CHECK-START: void InheritFromClassWithFinals.<init>(boolean) register (after)
-  // CHECK-NOT: MemoryBarrier {{StoreStore}}
+  // CHECK-NOT: MemoryBarrier kind:StoreStore
   public InheritFromClassWithFinals(boolean cond) {
     super(cond);
     // should not inline the super constructor
@@ -86,8 +86,8 @@
   final int y;
 
   // CHECK-START: void HaveFinalsAndInheritFromClassWithFinals.<init>() register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
 
@@ -100,7 +100,7 @@
 
   // CHECK-START: void HaveFinalsAndInheritFromClassWithFinals.<init>(boolean) register (after)
   // CHECK:     InvokeStaticOrDirect
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     ReturnVoid
   public HaveFinalsAndInheritFromClassWithFinals(boolean cond) {
@@ -116,13 +116,13 @@
   // CHECK:     InvokeStaticOrDirect
 
   // CHECK-START: ClassWithFinals Main.noInlineNoConstructorBarrier() register (after)
-  // CHECK-NOT: MemoryBarrier {{StoreStore}}
+  // CHECK-NOT: MemoryBarrier kind:StoreStore
   public static ClassWithFinals noInlineNoConstructorBarrier() {
     return new ClassWithFinals(false);
   }
 
   // CHECK-START: ClassWithFinals Main.inlineConstructorBarrier() register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     Return
 
@@ -133,7 +133,7 @@
   }
 
   // CHECK-START: InheritFromClassWithFinals Main.doubleInlineConstructorBarrier() register (after)
-  // CHECK:     MemoryBarrier {{StoreStore}}
+  // CHECK:     MemoryBarrier kind:StoreStore
   // CHECK-NOT: {{.*}}
   // CHECK:     Return
 
diff --git a/test/482-checker-loop-back-edge-use/src/Main.java b/test/482-checker-loop-back-edge-use/src/Main.java
index 74184e8..334792e 100644
--- a/test/482-checker-loop-back-edge-use/src/Main.java
+++ b/test/482-checker-loop-back-edge-use/src/Main.java
@@ -18,16 +18,16 @@
 public class Main {
 
   // CHECK-START: void Main.loop1(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 22) }, uses: { 17 22 }
-  // CHECK:         Goto (liveness: 20)
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-22 ] uses:[ 17 22 ]
+  // CHECK:         Goto            liveness:20
   public static void loop1(boolean incoming) {
     while (incoming) {}
   }
 
   // CHECK-START: void Main.loop2(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 42) }, uses: { 33 38 42 }
-  // CHECK:         Goto (liveness: 36)
-  // CHECK:         Goto (liveness: 40)
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-42 ] uses:[ 33 38 42 ]
+  // CHECK:         Goto            liveness:36
+  // CHECK:         Goto            liveness:40
   public static void loop2(boolean incoming) {
     while (true) {
       System.out.println("foo");
@@ -36,11 +36,11 @@
   }
 
   // CHECK-START: void Main.loop3(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 60) }, uses: { 56 60 }
-  // CHECK:         Goto (liveness: 58)
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-60 ] uses:[ 56 60 ]
+  // CHECK:         Goto            liveness:58
 
   // CHECK-START: void Main.loop3(boolean) liveness (after)
-  // CHECK-NOT:     Goto (liveness: 54)
+  // CHECK-NOT:     Goto liveness:54
   public static void loop3(boolean incoming) {
     // 'incoming' only needs a use at the outer loop's back edge.
     while (System.currentTimeMillis() != 42) {
@@ -50,10 +50,10 @@
   }
 
   // CHECK-START: void Main.loop4(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 22) }, uses: { 22 }
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-22 ] uses:[ 22 ]
 
   // CHECK-START: void Main.loop4(boolean) liveness (after)
-  // CHECK-NOT:     Goto (liveness: 20)
+  // CHECK-NOT:     Goto            liveness:20
   public static void loop4(boolean incoming) {
     // 'incoming' has no loop use, so should not have back edge uses.
     System.out.println(incoming);
@@ -63,9 +63,9 @@
   }
 
   // CHECK-START: void Main.loop5(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 50) }, uses: { 33 42 46 50 }
-  // CHECK:         Goto (liveness: 44)
-  // CHECK:         Goto (liveness: 48)
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-50 ] uses:[ 33 42 46 50 ]
+  // CHECK:         Goto            liveness:44
+  // CHECK:         Goto            liveness:48
   public static void loop5(boolean incoming) {
     // 'incoming' must have a use at both back edges.
     while (Runtime.getRuntime() != null) {
@@ -76,11 +76,11 @@
   }
 
   // CHECK-START: void Main.loop6(boolean) liveness (after)
-  // CHECK          ParameterValue (liveness: 2 ranges: { [2, 46) }, uses: { 24 46 }
-  // CHECK:         Goto (liveness: 44)
+  // CHECK          ParameterValue  liveness:2  ranges:[ 2-46 ] uses:[ 24 46 ]
+  // CHECK:         Goto            liveness:44
 
   // CHECK-START: void Main.loop6(boolean) liveness (after)
-  // CHECK-NOT:     Goto (liveness: 22)
+  // CHECK-NOT:     Goto            liveness:22
   public static void loop6(boolean incoming) {
     // 'incoming' must have a use only at the first loop's back edge.
     while (true) {
@@ -90,9 +90,9 @@
   }
 
   // CHECK-START: void Main.loop7(boolean) liveness (after)
-  // CHECK:         ParameterValue (liveness: 2 ranges: { [2, 50) }, uses: { 32 41 46 50 }
-  // CHECK:         Goto (liveness: 44)
-  // CHECK:         Goto (liveness: 48)
+  // CHECK:         ParameterValue  liveness:2  ranges:[ 2-50 ] uses:[ 32 41 46 50 ]
+  // CHECK:         Goto            liveness:44
+  // CHECK:         Goto            liveness:48
   public static void loop7(boolean incoming) {
     // 'incoming' must have a use at both back edges.
     while (Runtime.getRuntime() != null) {
@@ -102,9 +102,9 @@
   }
 
   // CHECK-START: void Main.loop8() liveness (after)
-  // CHECK:         StaticFieldGet (liveness: 12 ranges: { [12, 44) }, uses: { 35 40 44 }
-  // CHECK:         Goto (liveness: 38)
-  // CHECK:         Goto (liveness: 42)
+  // CHECK:         StaticFieldGet  liveness:12 ranges:[ 12-44 ] uses:[ 35 40 44 ]
+  // CHECK:         Goto            liveness:38
+  // CHECK:         Goto            liveness:42
   public static void loop8() {
     // 'incoming' must have a use at both back edges.
     boolean incoming = field;
@@ -114,8 +114,8 @@
   }
 
   // CHECK-START: void Main.loop9() liveness (after)
-  // CHECK:         StaticFieldGet (liveness: 22 ranges: { [22, 36) }, uses: { 31 36 }
-  // CHECK:         Goto (liveness: 38)
+  // CHECK:         StaticFieldGet  liveness:22 ranges:[ 22-36 ] uses:[ 31 36 ]
+  // CHECK:         Goto            liveness:38
   public static void loop9() {
     while (Runtime.getRuntime() != null) {
       // 'incoming' must only have a use in the inner loop.
diff --git a/test/485-checker-dce-loop-update/smali/TestCase.smali b/test/485-checker-dce-loop-update/smali/TestCase.smali
index 3873ac5..663a6ea 100644
--- a/test/485-checker-dce-loop-update/smali/TestCase.smali
+++ b/test/485-checker-dce-loop-update/smali/TestCase.smali
@@ -29,21 +29,21 @@
 # CHECK-DAG:     [[Cst1:i\d+]]  IntConstant 1
 # CHECK-DAG:     [[Cst5:i\d+]]  IntConstant 5
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[Cst1]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[Cst1]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 # CHECK-START: int TestCase.testSingleExit(int, boolean) dead_code_elimination_final (after)
 # CHECK-DAG:     [[ArgX:i\d+]]  ParameterValue
 # CHECK-DAG:     [[ArgY:z\d+]]  ParameterValue
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[AddX:i\d+]] ]               loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[AddX]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[AddX:i\d+]] ]               loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[AddX]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 .method public static testSingleExit(IZ)I
   .registers 3
@@ -80,24 +80,24 @@
 # CHECK-DAG:     [[Cst1:i\d+]]  IntConstant 1
 # CHECK-DAG:     [[Cst5:i\d+]]  IntConstant 5
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[Cst1]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[Cst1]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 # CHECK-START: int TestCase.testMultipleExits(int, boolean, boolean) dead_code_elimination_final (after)
 # CHECK-DAG:     [[ArgX:i\d+]]  ParameterValue
 # CHECK-DAG:     [[ArgY:z\d+]]  ParameterValue
 # CHECK-DAG:     [[ArgZ:z\d+]]  ParameterValue
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop_header:null
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop:none
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 .method public static testMultipleExits(IZZ)I
   .registers 4
@@ -137,15 +137,15 @@
 # CHECK-DAG:     [[Cst5:i\d+]]  IntConstant 5
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
 # CHECK-DAG:     [[Cst9:i\d+]]  IntConstant 9
-# CHECK-DAG:     [[PhiX1:i\d+]] Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Mul9:i\d+]]  Mul [ [[PhiX1]] [[Cst9]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:     [[PhiX2:i\d+]] Phi [ [[Mul9]] [[PhiX1]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[Cst1]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add5]]       Add [ [[PhiX2]] [[Cst5]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX1]] [[Cst7]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:                    Return [ [[PhiX2]] ]                         loop_header:null
+# CHECK-DAG:     [[PhiX1:i\d+]] Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Mul9:i\d+]]  Mul [ [[PhiX1]] [[Cst9]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:     [[PhiX2:i\d+]] Phi [ [[Mul9]] [[PhiX1]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[Cst1]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add5]]       Add [ [[PhiX2]] [[Cst5]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX1]] [[Cst7]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:                    Return [ [[PhiX2]] ]                         loop:none
 
 # CHECK-START: int TestCase.testExitPredecessors(int, boolean, boolean) dead_code_elimination_final (after)
 # CHECK-DAG:     [[ArgX:i\d+]]  ParameterValue
@@ -153,13 +153,13 @@
 # CHECK-DAG:     [[ArgZ:z\d+]]  ParameterValue
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
 # CHECK-DAG:     [[Cst9:i\d+]]  IntConstant 9
-# CHECK-DAG:     [[PhiX1:i\d+]] Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX1]] [[Cst7]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop_header:null
-# CHECK-DAG:     [[Mul9:i\d+]]  Mul [ [[PhiX1]] [[Cst9]] ]                   loop_header:null
-# CHECK-DAG:     [[PhiX2:i\d+]] Phi [ [[Mul9]] [[PhiX1]] ]                   loop_header:null
-# CHECK-DAG:                    Return [ [[PhiX2]] ]                         loop_header:null
+# CHECK-DAG:     [[PhiX1:i\d+]] Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop:[[HeaderY:B\d+]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX1]] [[Cst7]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgZ]] ]                              loop:none
+# CHECK-DAG:     [[Mul9:i\d+]]  Mul [ [[PhiX1]] [[Cst9]] ]                   loop:none
+# CHECK-DAG:     [[PhiX2:i\d+]] Phi [ [[Mul9]] [[PhiX1]] ]                   loop:none
+# CHECK-DAG:                    Return [ [[PhiX2]] ]                         loop:none
 
 .method public static testExitPredecessors(IZZ)I
   .registers 4
@@ -205,19 +205,19 @@
 # CHECK-DAG:     [[Cst5:i\d+]]  IntConstant 5
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
 #
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:     [[PhiZ1:i\d+]] Phi [ [[ArgZ]] [[XorZ:i\d+]] [[PhiZ1]] ]     loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add5:i\d+]] [[Add7:i\d+]] ] loop:[[HeaderY:B\d+]]
+# CHECK-DAG:     [[PhiZ1:i\d+]] Phi [ [[ArgZ]] [[XorZ:i\d+]] [[PhiZ1]] ]     loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
 #
 #                               ### Inner loop ###
-# CHECK-DAG:     [[PhiZ2:i\d+]] Phi [ [[PhiZ1]] [[XorZ]] ]                   loop_header:[[HeaderZ:B\d+]]
-# CHECK-DAG:     [[XorZ]]       Xor [ [[PhiZ2]] [[Cst1]] ]                   loop_header:[[HeaderZ]]
-# CHECK-DAG:     [[CondZ:z\d+]] Equal [ [[XorZ]] [[Cst0]] ]                  loop_header:[[HeaderZ]]
-# CHECK-DAG:                    If [ [[CondZ]] ]                             loop_header:[[HeaderZ]]
+# CHECK-DAG:     [[PhiZ2:i\d+]] Phi [ [[PhiZ1]] [[XorZ]] ]                   loop:[[HeaderZ:B\d+]]
+# CHECK-DAG:     [[XorZ]]       Xor [ [[PhiZ2]] [[Cst1]] ]                   loop:[[HeaderZ]]
+# CHECK-DAG:     [[CondZ:z\d+]] Equal [ [[XorZ]] [[Cst0]] ]                  loop:[[HeaderZ]]
+# CHECK-DAG:                    If [ [[CondZ]] ]                             loop:[[HeaderZ]]
 #
-# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:     [[Add5]]       Add [ [[PhiX]] [[Cst5]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 # CHECK-START: int TestCase.testInnerLoop(int, boolean, boolean) dead_code_elimination_final (after)
 # CHECK-DAG:     [[ArgX:i\d+]]  ParameterValue
@@ -227,18 +227,18 @@
 # CHECK-DAG:     [[Cst1:i\d+]]  IntConstant 1
 # CHECK-DAG:     [[Cst7:i\d+]]  IntConstant 7
 #
-# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop_header:[[HeaderY:B\d+]]
-# CHECK-DAG:     [[PhiZ1:i\d+]] Phi [ [[ArgZ]] [[PhiZ1]] ]                   loop_header:[[HeaderY]]
-# CHECK-DAG:                    If [ [[ArgY]] ]                              loop_header:[[HeaderY]]
-# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop_header:[[HeaderY]]
+# CHECK-DAG:     [[PhiX:i\d+]]  Phi [ [[ArgX]] [[Add7:i\d+]] ]               loop:[[HeaderY:B\d+]]
+# CHECK-DAG:     [[PhiZ1:i\d+]] Phi [ [[ArgZ]] [[PhiZ1]] ]                   loop:[[HeaderY]]
+# CHECK-DAG:                    If [ [[ArgY]] ]                              loop:[[HeaderY]]
+# CHECK-DAG:     [[Add7]]       Add [ [[PhiX]] [[Cst7]] ]                    loop:[[HeaderY]]
 #
 #                               ### Inner loop ###
-# CHECK-DAG:     [[PhiZ2:i\d+]] Phi [ [[PhiZ1]] [[XorZ:i\d+]] ]              loop_header:[[HeaderZ:B\d+]]
-# CHECK-DAG:     [[XorZ]]       Xor [ [[PhiZ2]] [[Cst1]] ]                   loop_header:[[HeaderZ]]
-# CHECK-DAG:     [[CondZ:z\d+]] Equal [ [[XorZ]] [[Cst0]] ]                  loop_header:[[HeaderZ]]
-# CHECK-DAG:                    If [ [[CondZ]] ]                             loop_header:[[HeaderZ]]
+# CHECK-DAG:     [[PhiZ2:i\d+]] Phi [ [[PhiZ1]] [[XorZ:i\d+]] ]              loop:[[HeaderZ:B\d+]]
+# CHECK-DAG:     [[XorZ]]       Xor [ [[PhiZ2]] [[Cst1]] ]                   loop:[[HeaderZ]]
+# CHECK-DAG:     [[CondZ:z\d+]] Equal [ [[XorZ]] [[Cst0]] ]                  loop:[[HeaderZ]]
+# CHECK-DAG:                    If [ [[CondZ]] ]                             loop:[[HeaderZ]]
 #
-# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop_header:null
+# CHECK-DAG:                    Return [ [[PhiX]] ]                          loop:none
 
 .method public static testInnerLoop(IZZ)I
   .registers 4