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loop-unswitch.c (compare_and_jump_seq): Assert that the last insn in the sequence is a jump insn before setting its label.

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* loop-unswitch.c (compare_and_jump_seq): Assert that the last
        insn in the sequence is a jump insn before setting its label.

From-SVN: r161313
This commit is contained in:
Nick Clifton 2010-06-24 10:01:57 +00:00 committed by Nick Clifton
parent 2dcef31e9f
commit b27c1cde2e
2 changed files with 7 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2010-06-24 Nick Clifton<nickc@redhat.com>
* loop-unswitch.c (compare_and_jump_seq): Assert that the last
insn in the sequence is a jump insn before setting its label.
2010-06-24 Alan Modra <amodra@gmail.com>
* collect2.c (main): Match exactly --version and --help.

2
gcc/loop-unswitch.c
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@ -110,6 +110,7 @@ compare_and_jump_seq (rtx op0, rtx op1, enum rtx_code comp, rtx label, int prob,
gcc_assert (rtx_equal_p (op1, XEXP (cond, 1)));
emit_jump_insn (copy_insn (PATTERN (cinsn)));
jump = get_last_insn ();
gcc_assert (JUMP_P (jump));
JUMP_LABEL (jump) = JUMP_LABEL (cinsn);
LABEL_NUSES (JUMP_LABEL (jump))++;
redirect_jump (jump, label, 0);
@ -123,6 +124,7 @@ compare_and_jump_seq (rtx op0, rtx op1, enum rtx_code comp, rtx label, int prob,
do_compare_rtx_and_jump (op0, op1, comp, 0,
mode, NULL_RTX, NULL_RTX, label, -1);
jump = get_last_insn ();
gcc_assert (JUMP_P (jump));
JUMP_LABEL (jump) = label;
LABEL_NUSES (label)++;
}