[Bug bootstrap/80565] New: ICE at -O2 and -O3 in 32-bit mode (not 64-bit) on x86_64-linux-gnu (in edge_badness, at ipa-inline.c:1028)

[chengniansun at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80565

            Bug ID: 80565
           Summary: ICE at -O2 and -O3 in 32-bit mode (not 64-bit) on
                    x86_64-linux-gnu (in edge_badness, at
                    ipa-inline.c:1028)
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chengniansun at gmail dot com
  Target Milestone: ---

$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/8.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 8.0.0 20170429 (experimental) [trunk revision 247405] (GCC) 
$ gcc-trunk -m32 -O2 small.c
small.c: In function ‘fn2’:
small.c:4:14: warning: type of ‘p1’ defaults to ‘int’ [-Wimplicit-int]
 static short fn2(p1) {
              ^~~
small.c: At top level:
small.c:39:1: internal compiler error: in edge_badness, at ipa-inline.c:1028
 }
 ^
0x139f133 edge_badness
        ../../gcc-source-trunk/gcc/ipa-inline.c:1028
0x13a037b update_edge_key
        ../../gcc-source-trunk/gcc/ipa-inline.c:1224
0x13a08da update_caller_keys
        ../../gcc-source-trunk/gcc/ipa-inline.c:1351
0x13a269f inline_small_functions
        ../../gcc-source-trunk/gcc/ipa-inline.c:2045
0x13a269f ipa_inline
        ../../gcc-source-trunk/gcc/ipa-inline.c:2438
0x13a269f execute
        ../../gcc-source-trunk/gcc/ipa-inline.c:2849
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ cat small.c
int a, b, c, e, h, j;
char d;
short f, g;
static short fn2(p1) {
  for (;;)
    for (; g; g++)
      if (p1)
        break;
}

static short fn3();
static char fn4(char p1) {
  int i;
  for (; d;)
    f = 8;
  for (; f; f = 0)
    for (; i; i++) {
      j = 0;
      for (; j; j++)
        ;
    }
}

static short fn1(short p1) { fn2(b || fn3()); }

short fn3() {
  if (c) {
    fn4(e);
    h = 0;
    for (;; h++)
      ;
  }
}

int main() {
  for (; a;)
    fn1(c);
  return 0;
}