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| author | Ilya Enkovich <ilya.enkovich@intel.com> | 2014-10-03 08:43:21 +0000 |
|---|---|---|
| committer | Kirill Yukhin <kyukhin@gcc.gnu.org> | 2014-10-03 08:43:21 +0000 |
| commit | 54bddf1d58d0ff4c2625a0310b8ff7853d73b871 (patch) | |
| tree | cb18144264106e9531c4d4df7a79d5ff50b16098 /gcc/lra-constraints.c | |
| parent | f598c55c56f71b77771190284c852601cf3edd0d (diff) | |
| download | gcc-54bddf1d58d0ff4c2625a0310b8ff7853d73b871.zip gcc-54bddf1d58d0ff4c2625a0310b8ff7853d73b871.tar.gz gcc-54bddf1d58d0ff4c2625a0310b8ff7853d73b871.tar.bz2 | |
lra-constraints.c (inherit_in_ebb): Handle calls with multiple return values.
gcc/
* lra-constraints.c (inherit_in_ebb): Handle calls with
multiple return values.
* caller-save.c (save_call_clobbered_regs): Likewise.
From-SVN: r215839
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index 5f68399..f1642f3 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -5348,16 +5348,21 @@ inherit_in_ebb (rtx_insn *head, rtx_insn *tail) if (GET_CODE (pat) == PARALLEL) pat = XVECEXP (pat, 0, 0); dest = SET_DEST (pat); - start_sequence (); - emit_move_insn (cheap, copy_rtx (dest)); - restore = get_insns (); - end_sequence (); - lra_process_new_insns (curr_insn, NULL, restore, - "Inserting call parameter restore"); - /* We don't need to save/restore of the pseudo from - this call. */ - usage_insns[regno].calls_num = calls_num; - bitmap_set_bit (&check_only_regs, regno); + /* For multiple return values dest is PARALLEL. + Currently we handle only single return value case. */ + if (REG_P (dest)) + { + start_sequence (); + emit_move_insn (cheap, copy_rtx (dest)); + restore = get_insns (); + end_sequence (); + lra_process_new_insns (curr_insn, NULL, restore, + "Inserting call parameter restore"); + /* We don't need to save/restore of the pseudo from + this call. */ + usage_insns[regno].calls_num = calls_num; + bitmap_set_bit (&check_only_regs, regno); + } } } to_inherit_num = 0; |