[Tarantool-patches] [PATCH luajit v2 1/2] dbg: fix mapping of FPMATHOP to string

[Mikhail Elhimov via Tarantool-patches <tarantool-patches@dev.tarantool.org>]

Prior to this patch IRFPMS contained incorrect entry 'exp2'.
IRFPMS is a human-readable form of enum IRFPMathOp, but there is no
'exp2' enum member (see IRFPMDEF(_)). It looks like it was added by
mistake initially.

Closes tarantool/tarantool#13159
---
 src/luajit_dbg.py                             |  1 -
 .../debug-extension-tests.py                  | 45 ++++++++++++++++++-
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/luajit_dbg.py b/src/luajit_dbg.py
index 80057a4e..76001b7d 100644
--- a/src/luajit_dbg.py
+++ b/src/luajit_dbg.py
@@ -1722,7 +1722,6 @@ IRFPMS = [
     'ceil',
     'trunc',
     'sqrt',
-    'exp2',
     'log',
     'log2',
     'other'
diff --git a/test/tarantool-debugger-tests/debug-extension-tests.py b/test/tarantool-debugger-tests/debug-extension-tests.py
index 895171a4..32701fd5 100644
--- a/test/tarantool-debugger-tests/debug-extension-tests.py
+++ b/test/tarantool-debugger-tests/debug-extension-tests.py
@@ -688,6 +688,39 @@ class TestLJIRFloadAbs(TestCaseBase):
     )
 
 
+class TestLJIRFPMathOpBase(TestCaseBase):
+    location = 'lj_cf_print'
+    extension_cmds = (
+        'n\n'  # Load L.
+        'lj-trace ' + '&((GG_State *)L)->J->cur'
+    )
+
+    @classmethod
+    def setUpClass(cls):
+        cls.lua_script = (
+            'jit.opt.start("hotloop=1")\n'
+            'local function trace(a)\n'
+            '  local x = {}\n'
+            '  return x\n'
+            'end\n'
+            'trace(1)\n'
+            'trace(1)\n'
+            'print()\n'
+        ).format(cls.lua_expr)
+        cls.pattern = r'num FPMATH .* ref: ' + RX_IRN + r' lit: ' + cls.op
+        super(TestLJIRFPMathOpBase, cls).setUpClass()
+
+
+class TestLJIRFPMathLog(TestLJIRFPMathOpBase):
+    lua_expr = 'math.log(a)'
+    op = 'log'
+
+
+class TestLJIRFPMathLog2(TestLJIRFPMathOpBase):
+    lua_expr = 'math.log(a, 3)'
+    op = 'log2'
+
+
 # XXX: Implemented only for GC64 in LuaJIT until backporting the
 # corresponding commit.
 if IS_GC64:
@@ -1051,7 +1084,17 @@ class TestLJCTypeBase(TestCaseBase):
     pattern = r'\[\d+\] <int>'
 
 
-for test_cls in TestCaseBase.__subclasses__():
+def get_leaf_subclasses(cls):
+    subclasses = cls.__subclasses__()
+    if not subclasses:
+        yield cls
+    else:
+        for sub in subclasses:
+            for leaf in get_leaf_subclasses(sub):
+                yield leaf
+
+
+for test_cls in get_leaf_subclasses(TestCaseBase):
     test_cls.test = lambda self: self.check()
 
 if __name__ == '__main__':
-- 
2.43.0