diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/function.c b/gcc/function.c index b84fc1e..f5a3102 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -6278,8 +6278,9 @@ expand_main_function () if (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN) { int align = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT; - rtx tmp; + rtx tmp, seq; + start_sequence (); /* Forcibly align the stack. */ #ifdef STACK_GROWS_DOWNWARD tmp = expand_simple_binop (Pmode, AND, stack_pointer_rtx, GEN_INT(-align), @@ -6296,6 +6297,16 @@ expand_main_function () /* Enlist allocate_dynamic_stack_space to pick up the pieces. */ tmp = force_reg (Pmode, const0_rtx); allocate_dynamic_stack_space (tmp, NULL_RTX, BIGGEST_ALIGNMENT); + seq = gen_sequence (); + end_sequence (); + + for (tmp = get_last_insn (); tmp; tmp = PREV_INSN (tmp)) + if (NOTE_P (tmp) && NOTE_LINE_NUMBER (tmp) == NOTE_INSN_FUNCTION_BEG) + break; + if (tmp) + emit_insn_before (seq, tmp); + else + emit_insn (seq); } #endif |