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| author | J"orn Rennecke <joern.rennecke@st.com> | 2005-09-20 21:48:36 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2005-09-20 22:48:36 +0100 |
| commit | 070a7956aa83825d8cdcc0d1b73aa64a0383ce84 (patch) | |
| tree | b5aed08c2aba5538d50f0915cdd9050b95ec600d /gcc/bb-reorder.c | |
| parent | 9972f30d1c2b29cdfc35421bbb5f4902ff0a1879 (diff) | |
| download | gcc-070a7956aa83825d8cdcc0d1b73aa64a0383ce84.zip gcc-070a7956aa83825d8cdcc0d1b73aa64a0383ce84.tar.gz gcc-070a7956aa83825d8cdcc0d1b73aa64a0383ce84.tar.bz2 | |
re PR rtl-optimization/23898 (basic block reordering excessively increases code size; get_uncond_jump_length pessimistic)
PR rtl-optimization/23898
* output.h (get_attr_min_length): Declare.
* final.c (get_attr_length_1): New function, broken out of:
(get_attr_length).
(get_attr_min_length): New function.
* bb-reorder.c (copy_bb_p, get_uncond_jump_length): Use it.
(duplicate_computed_gotos): Likewise.
* genattr.c (insn_min_length): Generate declaration.
* genattrtab.c (min_fn, min_attr_value): New functions.
(make_length_attrs): Generate insn_min_length.
From-SVN: r104468
Diffstat (limited to 'gcc/bb-reorder.c')
| -rw-r--r-- | gcc/bb-reorder.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c index c5de235..68d2cd8 100644 --- a/gcc/bb-reorder.c +++ b/gcc/bb-reorder.c @@ -1178,7 +1178,7 @@ copy_bb_p (basic_block bb, int code_may_grow) FOR_BB_INSNS (bb, insn) { if (INSN_P (insn)) - size += get_attr_length (insn); + size += get_attr_min_length (insn); } if (size <= max_size) @@ -1205,7 +1205,7 @@ get_uncond_jump_length (void) label = emit_label_before (gen_label_rtx (), get_insns ()); jump = emit_jump_insn (gen_jump (label)); - length = get_attr_length (jump); + length = get_attr_min_length (jump); delete_insn (jump); delete_insn (label); @@ -2030,7 +2030,7 @@ duplicate_computed_gotos (void) FOR_BB_INSNS (bb, insn) if (INSN_P (insn)) { - size += get_attr_length (insn); + size += get_attr_min_length (insn); if (size > max_size) break; } |