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cse.c (check_for_label_ref): Don't require REG_LABEL notes for non-local label_refs.

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* cse.c (check_for_label_ref): Don't require REG_LABEL notes for
non-local label_refs.

From-SVN: r46555
This commit is contained in:
Alexandre Oliva 2001-10-26 17:43:51 +00:00 committed by Alexandre Oliva
parent 11a802bf1d
commit 45c23566b6
2 changed files with 7 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-10-26 Alexandre Oliva <aoliva@redhat.com>
* cse.c (check_for_label_ref): Don't require REG_LABEL notes for
non-local label_refs.
2001-10-26 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.md (4 anonymous patterns): New.

3
gcc/cse.c
View File

@ -7362,7 +7362,7 @@ cse_basic_block (from, to, next_branch, around_loop)
}
/* Called via for_each_rtx to see if an insn is using a LABEL_REF for which
there isn't a REG_DEAD note. Return one if so. DATA is the insn. */
there isn't a REG_LABEL note. Return one if so. DATA is the insn. */
static int
check_for_label_ref (rtl, data)
@ -7376,6 +7376,7 @@ check_for_label_ref (rtl, data)
LABEL_REF for a CODE_LABEL that isn't in the insn chain, don't do this
since no REG_LABEL will be added. */
return (GET_CODE (*rtl) == LABEL_REF
&& ! LABEL_REF_NONLOCAL_P (*rtl)
&& LABEL_P (XEXP (*rtl, 0))
&& INSN_UID (XEXP (*rtl, 0)) != 0
&& ! find_reg_note (insn, REG_LABEL, XEXP (*rtl, 0)));