[Bug debug/83419] New: [8 Regression] -fcompare-debug failure (length)

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83419

            Bug ID: 83419
           Summary: [8 Regression] -fcompare-debug failure (length)
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: aoliva at gcc dot gnu.org
  Target Milestone: ---

trippels@gcc67 ffmpeg % cat utils.i
int a, b;
void fn1();
void fn2() {
  if (a || 1 == b)
    fn1();
  else
    0;
  fn1(1, 0);
}

trippels@gcc67 ffmpeg % gcc -fcompare-debug -O2 -c utils.i --save-temps
gcc: error: utils.i: -fcompare-debug failure (length)

trippels@gcc67 ffmpeg % diff -u utils.gkd utils.gk.gkd
--- utils.gkd   2017-12-14 08:40:37.017897604 +0100
+++ utils.gk.gkd        2017-12-14 08:40:37.037897592 +0100
@@ -112,7 +112,7 @@
     (expr_list (use (reg:QI 0 ax))
         (nil)))
 (jump_insn # 0 0 5 (set (pc)
-        (label_ref #))# {jump}
+        (label_ref #)) "utils.i":5# {jump}
      (nil)
  -> 3)
 (barrier # 0 0)