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cse.c (cse_insn): Fix loop which deletes insns after a jump that has become an unconditional jump. 

* cse.c (cse_insn): Fix loop which deletes insns after a jump
        that has become an unconditional jump.

From-SVN: r28388
This commit is contained in:
Jeffrey A Law 1999-08-02 05:53:02 +00:00 committed by Jeff Law
parent 63429dd7f8
commit eec9ef57bf
2 changed files with 7 additions and 1 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
Sun Aug 1 22:46:42 1999 Jeffrey A Law (law@cygnus.com)
* cse.c (cse_insn): Fix loop which deletes insns after a jump
that has become an unconditional jump.
* m68k.c (output_function_prologue): Fix typo in CPU32 case.
(output_function_epilogue): Similarly.

5
gcc/cse.c
View File

@ -7424,9 +7424,12 @@ cse_insn (insn, libcall_insn)
&& GET_CODE (NEXT_INSN (p)) != BARRIER
&& GET_CODE (NEXT_INSN (p)) != CODE_LABEL)
{
/* Note, we must update P with the return value from
delete_insn, otherwise we could get an infinite loop
if NEXT_INSN (p) had INSN_DELETED_P set. */
if (GET_CODE (NEXT_INSN (p)) != NOTE
|| NOTE_LINE_NUMBER (NEXT_INSN (p)) == NOTE_INSN_DELETED)
delete_insn (NEXT_INSN (p));
p = delete_insn (NEXT_INSN (p));
else
p = NEXT_INSN (p);
}