DBC: Instructions for bailouts from http tests.

runtime/vm/constants_dbc.h

Index: runtime/vm/constants_dbc.h
diff --git a/runtime/vm/constants_dbc.h b/runtime/vm/constants_dbc.h
index 3f950dffdceb0617bfc4e327f658a2c8fd6b81f0..5cf7edc8304747493151a2aafa06a910b8a544f8 100644
--- a/runtime/vm/constants_dbc.h
+++ b/runtime/vm/constants_dbc.h
@@ -313,21 +313,30 @@ namespace dart {
 //    Store FP[rC] into array FP[rA] at index FP[rB]. No typechecking is done.
 //    FP[rA] is assumed to be a RawArray, FP[rB] to be a smi.
 //
-//  - StoreFloat64Indexed rA, rB, rC
+//  - StoreIndexed{Float64, Uint8} rA, rB, rC
 //
-//    Store the unboxed double in FP[rC] into the typed data array at FP[rA]
-//    at index FP[rB].
+//    Store the unboxed double or tagged Smi in FP[rC] into the typed data array
+//    at FP[rA] at index FP[rB].
+//
+//  - StoreIndexedExternalUint8 rA, rB, rC
+//
+//    Similar to StoreIndexedUint8 but FP[rA] is an external typed data aray.
 //
 //  - LoadIndexed rA, rB, rC
 //
 //    Loads from array FP[rB] at index FP[rC] into FP[rA]. No typechecking is
 //    done. FP[rB] is assumed to be a RawArray, and to contain a Smi at FP[rC].
 //
-//  - Load{Float64, OneByteString, TwoByteString}Indexed rA, rB, rC
+//  - LoadIndexed{Float64, OneByteString, TwoByteString, Uint8, Int8} rA, rB, rC
 //
 //    Loads from typed data array FP[rB] at index FP[rC] into an unboxed double,
 //    or tagged Smi in FP[rA] as indicated by the type in the name.
 //
+//  - LoadIndexedExternal{Int8, Uint8} rA, rB, rC
+//
+//    Loads from the external typed data array FP[rB] at index FP[rC] into
+//    FP[rA]. No typechecking is done.
+//
 //  - StoreField rA, B, rC
 //
 //    Store value FP[rC] into object FP[rA] at offset (in words) B.
@@ -340,6 +349,10 @@ namespace dart {
 //
 //    Load value at offset (in words) C from object FP[rB] into FP[rA].
 //
+//  - LoadUntagged rA, rB, C
+//
+//    Like LoadField, but assumes that FP[rB] is untagged.
+//
 //  - LoadFieldTOS D
 //
 //    Push value at offset (in words) D from object SP[0].
@@ -651,14 +664,21 @@ namespace dart {
   V(AllocateT,                       0, ___, ___, ___) \
   V(StoreIndexedTOS,                 0, ___, ___, ___) \
   V(StoreIndexed,                A_B_C, reg, reg, reg) \
-  V(StoreFloat64Indexed,         A_B_C, reg, reg, reg) \
+  V(StoreIndexedUint8,           A_B_C, reg, reg, reg) \
+  V(StoreIndexedExternalUint8,   A_B_C, reg, reg, reg) \
+  V(StoreIndexedFloat64,         A_B_C, reg, reg, reg) \
   V(LoadIndexed,                 A_B_C, reg, reg, reg) \
-  V(LoadFloat64Indexed,          A_B_C, reg, reg, reg) \
-  V(LoadOneByteStringIndexed,    A_B_C, reg, reg, reg) \
-  V(LoadTwoByteStringIndexed,    A_B_C, reg, reg, reg) \
+  V(LoadIndexedUint8,            A_B_C, reg, reg, reg) \
+  V(LoadIndexedInt8,             A_B_C, reg, reg, reg) \
+  V(LoadIndexedExternalUint8,    A_B_C, reg, reg, reg) \
+  V(LoadIndexedExternalInt8,     A_B_C, reg, reg, reg) \
+  V(LoadIndexedFloat64,          A_B_C, reg, reg, reg) \
+  V(LoadIndexedOneByteString,    A_B_C, reg, reg, reg) \
+  V(LoadIndexedTwoByteString,    A_B_C, reg, reg, reg) \
   V(StoreField,                  A_B_C, reg, num, reg) \
   V(StoreFieldTOS,                   D, num, ___, ___) \
   V(LoadField,                   A_B_C, reg, reg, num) \
+  V(LoadUntagged,                A_B_C, reg, reg, num) \
   V(LoadFieldTOS,                    D, num, ___, ___) \
   V(BooleanNegateTOS,                0, ___, ___, ___) \
   V(BooleanNegate,                 A_D, reg, reg, ___) \