Add tests for pipe optimizations.

Author: Crell

Zend/tests/pipe_operator/optimizations.phpt

@@ -0,0 +1,89 @@
+--TEST--
+Pipe operator optimizes away most callables
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.opt_debug_level=0x20000
+--EXTENSIONS--
+opcache
+--FILE--
+<?php
+
+function _test1(int $a): int {
+    return $a + 1;
+}
+
+class Other {
+    public function foo(int $a): int {
+        return $a * 2;
+    }
+
+    public static function bar(int $a): int {
+        return $a -1;
+    }
+}
+
+$o = new Other();
+
+$res1 = 5
+    |> _test1(...)
+    |> $o->foo(...)
+    |> Other::bar(...)
+;
+
+var_dump($res1);
+?>
+--EXPECTF--
+$_main:
+     ; (lines=18, args=0, vars=2, tmps=2)
+     ; (after optimizer)
+     ; %s:1-27
+0000 V2 = NEW 0 string("Other")
+0001 DO_FCALL
+0002 ASSIGN CV0($o) V2
+0003 INIT_FCALL 1 112 string("_test1")
+0004 SEND_VAL int(5) 1
+0005 T2 = DO_UCALL
+0006 INIT_METHOD_CALL 1 CV0($o) string("foo")
+0007 SEND_VAL_EX T2 1
+0008 V3 = DO_FCALL
+0009 T2 = QM_ASSIGN V3
+0010 INIT_STATIC_METHOD_CALL 1 string("Other") string("bar")
+0011 SEND_VAL T2 1
+0012 V2 = DO_UCALL
+0013 ASSIGN CV1($res1) V2
+0014 INIT_FCALL 1 96 string("var_dump")
+0015 SEND_VAR CV1($res1) 1
+0016 DO_ICALL
+0017 RETURN int(1)
+LIVE RANGES:
+     2: 0001 - 0002 (new)
+     2: 0010 - 0011 (tmp/var)
+
+_test1:
+     ; (lines=4, args=1, vars=1, tmps=1)
+     ; (after optimizer)
+     ; %s:3-5
+0000 CV0($a) = RECV 1
+0001 T1 = ADD CV0($a) int(1)
+0002 VERIFY_RETURN_TYPE T1
+0003 RETURN T1
+
+Other::foo:
+     ; (lines=4, args=1, vars=1, tmps=1)
+     ; (after optimizer)
+     ; %s:8-10
+0000 CV0($a) = RECV 1
+0001 T1 = ADD CV0($a) CV0($a)
+0002 VERIFY_RETURN_TYPE T1
+0003 RETURN T1
+
+Other::bar:
+     ; (lines=4, args=1, vars=1, tmps=1)
+     ; (after optimizer)
+     ; %s:12-14
+0000 CV0($a) = RECV 1
+0001 T1 = SUB CV0($a) int(1)
+0002 VERIFY_RETURN_TYPE T1
+0003 RETURN T1
+int(11)