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* final.c (final_scan_insn): Remove if (0) code.

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From-SVN: r133719
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Ben Elliston 2008-03-29 21:33:54 +00:00 committed by Ben Elliston
parent e3a692a4cb
commit 744c6d6e71
2 changed files with 4 additions and 24 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2008-03-30 Ben Elliston <bje@au.ibm.com>
* final.c (final_scan_insn): Remove if (0) code.
2008-03-28 Volker Reichelt <v.reichelt@netcologne.de>
* c-parser.c (c_parser_next_token_is_keyword): Simplify.

24
gcc/final.c
View File

@ -1978,30 +1978,6 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
}
#ifdef HAVE_cc0
CC_STATUS_INIT;
/* If this label is reached from only one place, set the condition
codes from the instruction just before the branch. */
/* Disabled because some insns set cc_status in the C output code
and NOTICE_UPDATE_CC alone can set incorrect status. */
if (0 /* optimize && LABEL_NUSES (insn) == 1*/)
{
rtx jump = LABEL_REFS (insn);
rtx barrier = prev_nonnote_insn (insn);
rtx prev;
/* If the LABEL_REFS field of this label has been set to point
at a branch, the predecessor of the branch is a regular
insn, and that branch is the only way to reach this label,
set the condition codes based on the branch and its
predecessor. */
if (barrier && BARRIER_P (barrier)
&& jump && JUMP_P (jump)
&& (prev = prev_nonnote_insn (jump))
&& NONJUMP_INSN_P (prev))
{
NOTICE_UPDATE_CC (PATTERN (prev), prev);
NOTICE_UPDATE_CC (PATTERN (jump), jump);
}
}
#endif
if (LABEL_NAME (insn))