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| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-07 02:26:51 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-07 02:26:51 +0000 |
| commit | d3ff0f753948e4e595c6cf3d77ac1b05c655b464 (patch) | |
| tree | 17de3bb34420626f8eab111aee34a18e3a1f275f /gcc/sched-rgn.c | |
| parent | 0351a03252ba852c678fade3693ba70f6a75cdf4 (diff) | |
| download | gcc-d3ff0f753948e4e595c6cf3d77ac1b05c655b464.tar.gz | |
* reload.c (subst_reloads): Take INSN argument. When
replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
* reload.h (subst_reloads): Adjust prototype.
* reload1.c (reload_as_needed): Pass INSN to subst_reloads.
* jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
present in JUMP_INSNs and copy them to JUMP_LABEL.
* flow.c (find_label_refs, find_basic_blocks_1): Skip
JUMP_INSNs and insns with REG_LABELs that are followed by
JUMP_INSNs with the same REG_LABEL.
* sched-rgn.c (is_cfg_nonregular): Likewise.
* rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
note is available.
* unroll.c (unroll_loop): Look for REG_LABEL notes in
JUMP_INSNs too.
* rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38755 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched-rgn.c')
| -rw-r--r-- | gcc/sched-rgn.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c index db4cc877b36..c1c215a1ea9 100644 --- a/gcc/sched-rgn.c +++ b/gcc/sched-rgn.c @@ -1,6 +1,6 @@ /* Instruction scheduling pass. Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000 Free Software Foundation, Inc. + 1999, 2000, 2001 Free Software Foundation, Inc. Contributed by Michael Tiemann (tiemann@cygnus.com) Enhanced by, and currently maintained by, Jim Wilson (wilson@cygnus.com) @@ -349,13 +349,16 @@ is_cfg_nonregular () for (insn = BLOCK_HEAD (b);; insn = NEXT_INSN (insn)) { code = GET_CODE (insn); - if (GET_RTX_CLASS (code) == 'i') + if (GET_RTX_CLASS (code) == 'i' && code != JUMP_INSN) { - rtx note; - - for (note = REG_NOTES (insn); note; note = XEXP (note, 1)) - if (REG_NOTE_KIND (note) == REG_LABEL) - return 1; + rtx note = find_reg_note (REG_NOTES (insn), REG_LABEL, NULL_RTX); + + if (note + && ! (GET_CODE (NEXT_INSN (insn)) == JUMP_INSN + && find_reg_note (REG_NOTES (NEXT_INSN (insn)), + REG_LABEL, + XEXP (note, 0)))) + return 1; } if (insn == BLOCK_END (b)) |