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gh-131798: JIT: Optimize `_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW` by tomasr8 · Pull Request #134369 · python/cpython · GitHub

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gh-131798: JIT: Optimize _POP_CALL_TWO_LOAD_CONST_INLINE_BORROW #134369

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Merged
brandtbucher merged 9 commits into from
May 22, 2025
Conversation 11 Commits 9 Checks 0 Files changed
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gh-131798: JIT: Optimize _POP_CALL_TWO_LOAD_CONST_INLINE_BORROW #134369

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90d38d7
Optimize _POP_CALL_TWO_LOAD_CONST_INLINE_BORROW
tomasr8 May 21, 2025
0e66db4
Add news entry
tomasr8 May 22, 2025
0e1030b
Trailing whitespace
tomasr8 May 22, 2025
af88646
Simplify logic
tomasr8 May 22, 2025
3ed47d2
Wrap line
tomasr8 May 22, 2025
bf27867
PEP7
tomasr8 May 22, 2025
2f90609
PEP7 vol. 2
tomasr8 May 22, 2025
5db29d8
Simplify logic
tomasr8 May 22, 2025
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Style fixes
tomasr8 May 22, 2025
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91 changes: 48 additions & 43 deletions Include/internal/pycore_uop_ids.h
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26 changes: 23 additions & 3 deletions Include/internal/pycore_uop_metadata.h
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20 changes: 16 additions & 4 deletions Lib/test/test_capi/test_opt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2002,7 +2002,10 @@ def testfunc(n):
self.assertNotIn("_CALL_ISINSTANCE", uops)
self.assertNotIn("_GUARD_THIRD_NULL", uops)
self.assertNotIn("_GUARD_CALLABLE_ISINSTANCE", uops)
self.assertIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)

def test_call_list_append(self):
def testfunc(n):
Expand Down Expand Up @@ -2035,7 +2038,10 @@ def testfunc(n):
self.assertNotIn("_CALL_ISINSTANCE", uops)
self.assertNotIn("_TO_BOOL_BOOL", uops)
self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
self.assertIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)

def test_call_isinstance_is_false(self):
def testfunc(n):
Expand All @@ -2053,7 +2059,10 @@ def testfunc(n):
self.assertNotIn("_CALL_ISINSTANCE", uops)
self.assertNotIn("_TO_BOOL_BOOL", uops)
self.assertNotIn("_GUARD_IS_FALSE_POP", uops)
self.assertIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)

def test_call_isinstance_subclass(self):
def testfunc(n):
Expand All @@ -2071,7 +2080,10 @@ def testfunc(n):
self.assertNotIn("_CALL_ISINSTANCE", uops)
self.assertNotIn("_TO_BOOL_BOOL", uops)
self.assertNotIn("_GUARD_IS_TRUE_POP", uops)
self.assertIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_TOP_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW", uops)
self.assertNotIn("_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW", uops)

def test_call_isinstance_unknown_object(self):
def testfunc(n):
Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2025-05-22-17-49-39.gh-issue-131798.U6ZmFm.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Optimize ``_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW``.
42 changes: 39 additions & 3 deletions Python/bytecodes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5287,18 +5287,54 @@ dummy_func(
value = PyStackRef_FromPyObjectBorrow(ptr);
}

tier2 pure op (_POP_TOP_LOAD_CONST_INLINE_BORROW, (ptr/4, pop -- value)) {
tier2 op(_POP_CALL, (callable, null --)) {
(void)null; // Silence compiler warnings about unused variables
DEAD(null);
PyStackRef_CLOSE(callable);
}

tier2 op(_POP_CALL_ONE, (callable, null, pop --)) {
PyStackRef_CLOSE(pop);
(void)null; // Silence compiler warnings about unused variables
DEAD(null);
PyStackRef_CLOSE(callable);
}

tier2 op(_POP_CALL_TWO, (callable, null, pop1, pop2 --)) {
PyStackRef_CLOSE(pop2);
PyStackRef_CLOSE(pop1);
(void)null; // Silence compiler warnings about unused variables
DEAD(null);
PyStackRef_CLOSE(callable);
}

tier2 op(_POP_TOP_LOAD_CONST_INLINE_BORROW, (ptr/4, pop -- value)) {
PyStackRef_CLOSE(pop);
value = PyStackRef_FromPyObjectBorrow(ptr);
}

tier2 pure op(_POP_TWO_LOAD_CONST_INLINE_BORROW, (ptr/4, pop1, pop2 -- value)) {
tier2 op(_POP_TWO_LOAD_CONST_INLINE_BORROW, (ptr/4, pop1, pop2 -- value)) {
PyStackRef_CLOSE(pop2);
PyStackRef_CLOSE(pop1);
value = PyStackRef_FromPyObjectBorrow(ptr);
}

tier2 pure op(_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW, (ptr/4, callable, null, pop1, pop2 -- value)) {
tier2 op(_POP_CALL_LOAD_CONST_INLINE_BORROW, (ptr/4, callable, null -- value)) {
(void)null; // Silence compiler warnings about unused variables
DEAD(null);
PyStackRef_CLOSE(callable);
value = PyStackRef_FromPyObjectBorrow(ptr);
}

tier2 op(_POP_CALL_ONE_LOAD_CONST_INLINE_BORROW, (ptr/4, callable, null, pop -- value)) {
PyStackRef_CLOSE(pop);
(void)null; // Silence compiler warnings about unused variables
DEAD(null);
PyStackRef_CLOSE(callable);
value = PyStackRef_FromPyObjectBorrow(ptr);
}

tier2 op(_POP_CALL_TWO_LOAD_CONST_INLINE_BORROW, (ptr/4, callable, null, pop1, pop2 -- value)) {
PyStackRef_CLOSE(pop2);
PyStackRef_CLOSE(pop1);
(void)null; // Silence compiler warnings about unused variables
Expand Down
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