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authorIrit Katriel <1055913+iritkatriel@users.noreply.github.com>2023-01-25 22:29:56 (GMT)
committerGitHub <noreply@github.com>2023-01-25 22:29:56 (GMT)
commitb400219df5f245ef2eb3c7ce0589b1f8020a1192 (patch)
tree6ce0e7cf8c039cf5c5f2f573c7f6060c329cdc35 /Python
parent6162a0e305faf82534c011ddb2fb99a94ae84d29 (diff)
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gh-98831: rewrite RAISE_VARARGS in the instruction definition DSL (#101306)
Diffstat (limited to 'Python')
-rw-r--r--Python/bytecodes.c13
-rw-r--r--Python/generated_cases.c.h11
-rw-r--r--Python/opcode_metadata.h8
3 files changed, 16 insertions, 16 deletions
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index d3e242b..e5769f61 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -505,27 +505,24 @@ dummy_func(
ERROR_IF(res == NULL, error);
}
- // This should remain a legacy instruction.
- inst(RAISE_VARARGS) {
+ inst(RAISE_VARARGS, (args[oparg] -- )) {
PyObject *cause = NULL, *exc = NULL;
switch (oparg) {
case 2:
- cause = POP(); /* cause */
+ cause = args[1];
/* fall through */
case 1:
- exc = POP(); /* exc */
+ exc = args[0];
/* fall through */
case 0:
- if (do_raise(tstate, exc, cause)) {
- goto exception_unwind;
- }
+ ERROR_IF(do_raise(tstate, exc, cause), exception_unwind);
break;
default:
_PyErr_SetString(tstate, PyExc_SystemError,
"bad RAISE_VARARGS oparg");
break;
}
- goto error;
+ ERROR_IF(true, error);
}
inst(INTERPRETER_EXIT, (retval --)) {
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index 7d3396a..287a1f1 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -689,25 +689,24 @@
}
TARGET(RAISE_VARARGS) {
+ PyObject **args = &PEEK(oparg);
PyObject *cause = NULL, *exc = NULL;
switch (oparg) {
case 2:
- cause = POP(); /* cause */
+ cause = args[1];
/* fall through */
case 1:
- exc = POP(); /* exc */
+ exc = args[0];
/* fall through */
case 0:
- if (do_raise(tstate, exc, cause)) {
- goto exception_unwind;
- }
+ if (do_raise(tstate, exc, cause)) { STACK_SHRINK(oparg); goto exception_unwind; }
break;
default:
_PyErr_SetString(tstate, PyExc_SystemError,
"bad RAISE_VARARGS oparg");
break;
}
- goto error;
+ if (true) { STACK_SHRINK(oparg); goto error; }
}
TARGET(INTERPRETER_EXIT) {
diff --git a/Python/opcode_metadata.h b/Python/opcode_metadata.h
index 46fd967..cca8662 100644
--- a/Python/opcode_metadata.h
+++ b/Python/opcode_metadata.h
@@ -2,6 +2,7 @@
// from Python/bytecodes.c
// Do not edit!
+#ifndef NDEBUG
static int
_PyOpcode_num_popped(int opcode, int oparg) {
switch(opcode) {
@@ -86,7 +87,7 @@ _PyOpcode_num_popped(int opcode, int oparg) {
case CALL_INTRINSIC_1:
return 1;
case RAISE_VARARGS:
- return -1;
+ return oparg;
case INTERPRETER_EXIT:
return 1;
case RETURN_VALUE:
@@ -345,7 +346,9 @@ _PyOpcode_num_popped(int opcode, int oparg) {
Py_UNREACHABLE();
}
}
+#endif
+#ifndef NDEBUG
static int
_PyOpcode_num_pushed(int opcode, int oparg) {
switch(opcode) {
@@ -430,7 +433,7 @@ _PyOpcode_num_pushed(int opcode, int oparg) {
case CALL_INTRINSIC_1:
return 1;
case RAISE_VARARGS:
- return -1;
+ return 0;
case INTERPRETER_EXIT:
return 0;
case RETURN_VALUE:
@@ -689,6 +692,7 @@ _PyOpcode_num_pushed(int opcode, int oparg) {
Py_UNREACHABLE();
}
}
+#endif
enum Direction { DIR_NONE, DIR_READ, DIR_WRITE };
enum InstructionFormat { INSTR_FMT_IB, INSTR_FMT_IBC, INSTR_FMT_IBC0, INSTR_FMT_IBC000, INSTR_FMT_IBIB, INSTR_FMT_IX, INSTR_FMT_IXC, INSTR_FMT_IXC000 };
struct opcode_metadata {