diff options
| author | bonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-15 15:07:59 +0000 |
|---|---|---|
| committer | bonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-15 15:07:59 +0000 |
| commit | 35c2394dee3a6c7094cfc7d3fecb7dd0bddac894 (patch) | |
| tree | 025135acaafe07fe73718d7570e8e8e0cf774264 /gcc/caller-save.c | |
| parent | f29df0d6a3288de33b8f2aa9d02d039fe2347f32 (diff) | |
| download | gcc-35c2394dee3a6c7094cfc7d3fecb7dd0bddac894.tar.gz | |
2007-02-15 Paolo Bonzini <bonzini@gnu.org>
* caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121998 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/caller-save.c')
| -rw-r--r-- | gcc/caller-save.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/gcc/caller-save.c b/gcc/caller-save.c index 54f88a14d40..4acb912248d 100644 --- a/gcc/caller-save.c +++ b/gcc/caller-save.c @@ -407,7 +407,9 @@ save_call_clobbered_regs (void) regno += insert_restore (chain, 1, regno, MOVE_MAX_WORDS, save_mode); } - if (code == CALL_INSN && ! find_reg_note (insn, REG_NORETURN, NULL)) + if (code == CALL_INSN + && ! SIBLING_CALL_P (insn) + && ! find_reg_note (insn, REG_NORETURN, NULL)) { unsigned regno; HARD_REG_SET hard_regs_to_save; @@ -450,11 +452,6 @@ save_call_clobbered_regs (void) during the call, but the subreg that is set isn't. */ CLEAR_HARD_REG_SET (this_insn_sets); note_stores (PATTERN (insn), mark_set_regs, &this_insn_sets); - /* Sibcalls are considered to set the return value, - compare flow.c:propagate_one_insn. */ - if (SIBLING_CALL_P (insn) && current_function_return_rtx) - mark_set_regs (current_function_return_rtx, NULL_RTX, - &this_insn_sets); /* Compute which hard regs must be saved before this call. */ AND_COMPL_HARD_REG_SET (hard_regs_to_save, call_fixed_reg_set); |