runtime: move panic functions to a separate file

src/runtime/panic.go

@@ -0,0 +1,34 @@
+package runtime
+
+func _panic(message interface{}) {
+	printstring("panic: ")
+	printitf(message)
+	printnl()
+	abort()
+}
+
+// Check for bounds in *ssa.Index, *ssa.IndexAddr and *ssa.Lookup.
+func lookupBoundsCheck(length, index int) {
+	if index < 0 || index >= length {
+		// printstring() here is safe as this function is excluded from bounds
+		// checking.
+		printstring("panic: runtime error: index out of range\n")
+		abort()
+	}
+}
+
+// Check for bounds in *ssa.Slice.
+func sliceBoundsCheck(length, low, high uint) {
+	if !(0 <= low && low <= high && high <= length) {
+		printstring("panic: runtime error: slice out of range\n")
+		abort()
+	}
+}
+
+// Check for bounds in *ssa.MakeSlice.
+func sliceBoundsCheckMake(length, capacity uint) {
+	if !(0 <= length && length <= capacity) {
+		printstring("panic: runtime error: slice size out of range\n")
+		abort()
+	}
+}

src/runtime/runtime.go

@@ -81,36 +81,3 @@ func memequal(x, y unsafe.Pointer, n uintptr) bool {
 	}
 	return true
 }
-
-func _panic(message interface{}) {
-	printstring("panic: ")
-	printitf(message)
-	printnl()
-	abort()
-}
-
-// Check for bounds in *ssa.Index, *ssa.IndexAddr and *ssa.Lookup.
-func lookupBoundsCheck(length, index int) {
-	if index < 0 || index >= length {
-		// printstring() here is safe as this function is excluded from bounds
-		// checking.
-		printstring("panic: runtime error: index out of range\n")
-		abort()
-	}
-}
-
-// Check for bounds in *ssa.Slice.
-func sliceBoundsCheck(length, low, high uint) {
-	if !(0 <= low && low <= high && high <= length) {
-		printstring("panic: runtime error: slice out of range\n")
-		abort()
-	}
-}
-
-// Check for bounds in *ssa.MakeSlice.
-func sliceBoundsCheckMake(length, capacity uint) {
-	if !(0 <= length && length <= capacity) {
-		printstring("panic: runtime error: slice size out of range\n")
-		abort()
-	}
-}