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Closes #11471: avoid generating a JUMP_FORWARD instruction at the end of an if-block if there is no else-clause.

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Original patch by Eugene Toder.
This commit is contained in:
Antoine Pitrou 2014-09-18 03:06:50 +02:00
parent 87538e7bc4
commit e7811fca5e
3 changed files with 90 additions and 91 deletions
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6
Python/compile.c
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@ -1940,7 +1940,7 @@ compiler_if(struct compiler *c, stmt_ty s)
} else if (constant == 1) {
VISIT_SEQ(c, stmt, s->v.If.body);
} else {
if (s->v.If.orelse) {
if (asdl_seq_LEN(s->v.If.orelse)) {
next = compiler_new_block(c);
if (next == NULL)
return 0;
@ -1950,8 +1950,8 @@ compiler_if(struct compiler *c, stmt_ty s)
VISIT(c, expr, s->v.If.test);
ADDOP_JABS(c, POP_JUMP_IF_FALSE, next);
VISIT_SEQ(c, stmt, s->v.If.body);
ADDOP_JREL(c, JUMP_FORWARD, end);
if (s->v.If.orelse) {
if (asdl_seq_LEN(s->v.If.orelse)) {
ADDOP_JREL(c, JUMP_FORWARD, end);
compiler_use_next_block(c, next);
VISIT_SEQ(c, stmt, s->v.If.orelse);
}