diff options
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index cf2def2393b..39831af4745 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -4138,8 +4138,9 @@ ix86_compute_frame_layout (frame) offset += size; - /* Add outgoing arguments area. */ - if (ACCUMULATE_OUTGOING_ARGS) + /* Add outgoing arguments area. Can be skipped if we eliminated + all the function calls as dead code. */ + if (ACCUMULATE_OUTGOING_ARGS && !current_function_is_leaf) { offset += current_function_outgoing_args_size; frame->outgoing_arguments_size = current_function_outgoing_args_size; @@ -4147,9 +4148,12 @@ ix86_compute_frame_layout (frame) else frame->outgoing_arguments_size = 0; - /* Align stack boundary. */ - frame->padding2 = ((offset + preferred_alignment - 1) - & -preferred_alignment) - offset; + /* Align stack boundary. Only needed if we're calling another function. */ + if (!current_function_is_leaf) + frame->padding2 = ((offset + preferred_alignment - 1) + & -preferred_alignment) - offset; + else + frame->padding2 = 0; offset += frame->padding2; |