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Emit EXT_STMT after each pipe stage, and attach the TMP var that holds the intermediary result #19377

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Merged
merged 3 commits into from
Aug 12, 2025
Merged

Emit EXT_STMT after each pipe stage, and attach the TMP var that holds the intermediary result #19377

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2e50c8d
Emit EXT_STMT after each pipe stage, and attach the TMP var that hold…
derickr Jul 17, 2025
1eaa527
Add ZEND_EXT_STMT to keeps_op1_alive as per review
derickr Aug 11, 2025
6282022
Fix leak with EXT_STMT when pipe result is unused
iluuu1994 Aug 11, 2025
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15 changes: 10 additions & 5 deletions Zend/zend_compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1920,7 +1920,7 @@ static void zend_add_to_list(void *result, void *item) /* {{{ */
}
/* }}} */

static void zend_do_extended_stmt(void) /* {{{ */
static void zend_do_extended_stmt(znode* result) /* {{{ */
{
zend_op *opline;

Expand All @@ -1931,6 +1931,9 @@ static void zend_do_extended_stmt(void) /* {{{ */
opline = get_next_op();

opline->opcode = ZEND_EXT_STMT;
if (result) {
SET_NODE(opline->op1, result);
}
}
/* }}} */

Expand Down Expand Up @@ -6050,7 +6053,7 @@ static void zend_compile_for(zend_ast *ast) /* {{{ */

zend_update_jump_target_to_next(opnum_jmp);
zend_compile_for_expr_list(&result, cond_ast);
zend_do_extended_stmt();
zend_do_extended_stmt(NULL);

zend_emit_cond_jump(ZEND_JMPNZ, &result, opnum_start);

Expand Down Expand Up @@ -6171,7 +6174,7 @@ static void zend_compile_if(zend_ast *ast) /* {{{ */

if (i > 0) {
CG(zend_lineno) = cond_ast->lineno;
zend_do_extended_stmt();
zend_do_extended_stmt(NULL);
}

zend_compile_expr(&cond_node, cond_ast);
Expand Down Expand Up @@ -6500,6 +6503,8 @@ static void zend_compile_pipe(znode *result, zend_ast *ast)
}

zend_compile_expr(result, fcall_ast);
CG(zend_lineno) = fcall_ast->lineno;
zend_do_extended_stmt(result);
}

static void zend_compile_match(znode *result, zend_ast *ast)
Expand Down Expand Up @@ -8532,7 +8537,7 @@ static zend_op_array *zend_compile_func_decl_ex(
/* put the implicit return on the really last line */
CG(zend_lineno) = decl->end_lineno;

zend_do_extended_stmt();
zend_do_extended_stmt(NULL);
zend_emit_final_return(0);

pass_two(CG(active_op_array));
Expand Down Expand Up @@ -11602,7 +11607,7 @@ static void zend_compile_stmt(zend_ast *ast) /* {{{ */
CG(zend_lineno) = ast->lineno;

if ((CG(compiler_options) & ZEND_COMPILE_EXTENDED_STMT) && !zend_is_unticked_stmt(ast)) {
zend_do_extended_stmt();
zend_do_extended_stmt(NULL);
}

switch (ast->kind) {
Expand Down