diff options
| author | David S. Miller <davem@redhat.com> | 2002-05-10 05:50:11 -0700 |
|---|---|---|
| committer | David S. Miller <davem@gcc.gnu.org> | 2002-05-10 05:50:11 -0700 |
| commit | cf40ea15f61a4535859ca50195eb58a63e3de1ba (patch) | |
| tree | b339206e3fbe7651c9692cd72f387b4671880f3f /gcc/resource.c | |
| parent | 1a499b9250dfd05a03485d281e873b437d67bc9e (diff) | |
| download | gcc-cf40ea15f61a4535859ca50195eb58a63e3de1ba.zip gcc-cf40ea15f61a4535859ca50195eb58a63e3de1ba.tar.gz gcc-cf40ea15f61a4535859ca50195eb58a63e3de1ba.tar.bz2 | |
rtl.h (struct rtx_def): Document unchanging and in_struct flags more accurately.
2002-05-09 David S. Miller <davem@redhat.com>
* rtl.h (struct rtx_def): Document unchanging and in_struct flags
more accurately.
(INSN_ANNULLED_BRANCH_P): Only valid for JUMP_INSN and CALL_INSN, fix
comment.
(INSN_FROM_TARGET_P): Valid also for CALL_INSN.
* doc/rtl.texi: Document these macros more accurately.
* recog.c (whole file): Only mess with INSN_ANNULLED_BRANCH_P for
JUMP_INSNs and CALL_INSNs.
* resource.c (whole file): Only mess with INSN_ANNULLED_BRANCH_P
or INSN_FROM_TARGET_P if the code is appropriate.
From-SVN: r53360
Diffstat (limited to 'gcc/resource.c')
| -rw-r--r-- | gcc/resource.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/gcc/resource.c b/gcc/resource.c index e890f87..c6b7570 100644 --- a/gcc/resource.c +++ b/gcc/resource.c @@ -175,10 +175,21 @@ next_insn_no_annul (insn) { /* If INSN is an annulled branch, skip any insns from the target of the branch. */ - if (INSN_ANNULLED_BRANCH_P (insn) + if (GET_CODE (insn) == JUMP_INSN + && INSN_ANNULLED_BRANCH_P (insn) && NEXT_INSN (PREV_INSN (insn)) != insn) - while (INSN_FROM_TARGET_P (NEXT_INSN (insn))) - insn = NEXT_INSN (insn); + { + rtx next = NEXT_INSN (insn); + enum rtx_code code = GET_CODE (next); + + while ((code == INSN || code == JUMP_INSN || code == CALL_INSN) + && INSN_FROM_TARGET_P (next)) + { + insn = next; + next = NEXT_INSN (insn); + code = GET_CODE (next); + } + } insn = NEXT_INSN (insn); if (insn && GET_CODE (insn) == INSN @@ -1007,16 +1018,18 @@ mark_target_live_regs (insns, target, res) { rtx link; rtx real_insn = insn; + enum rtx_code code = GET_CODE (insn); /* If this insn is from the target of a branch, it isn't going to be used in the sequel. If it is used in both cases, this test will not be true. */ - if (INSN_FROM_TARGET_P (insn)) + if ((code == INSN || code == JUMP_INSN || code == CALL_INSN) + && INSN_FROM_TARGET_P (insn)) continue; /* If this insn is a USE made by update_block, we care about the underlying insn. */ - if (GET_CODE (insn) == INSN && GET_CODE (PATTERN (insn)) == USE + if (code == INSN && GET_CODE (PATTERN (insn)) == USE && INSN_P (XEXP (PATTERN (insn), 0))) real_insn = XEXP (PATTERN (insn), 0); |