diff options
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/cse.c | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ba8058f..e7b6552 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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. @@ -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); } |