diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 1a6d87f..3dedc5b 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -581,6 +581,13 @@ expand_builtin_setjmp_receiver (receiver_label) else #endif { /* Nothing */ } + + /* @@@ This is a kludge. Not all machine descriptions define a blockage + insn, but we must not allow the code we just generated to be reordered + by scheduling. Specifically, the update of the frame pointer must + happen immediately, not later. So emit an ASM_INPUT to act as blockage + insn. */ + emit_insn (gen_rtx_ASM_INPUT (VOIDmode, "")); } /* __builtin_setjmp is passed a pointer to an array of five words (not |