https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78461
Bug ID: 78461
Summary: [7 Regression] ICE: in operator+=, at
gimple-ssa-sprintf.c:214
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
Target Milestone: ---
markus@x4 /tmp % cat dlm.i
extern int snprintf(char *s, unsigned long n, const char *format, ...);
void foo(char *ch) { snprintf(0, 0, "%.*s%08x", 1, ch, 1); }
markus@x4 /tmp % gcc -c dlm.i
dlm.i: In function ‘foo’:
dlm.i:2:6: internal compiler error: in operator+=, at gimple-ssa-sprintf.c:214
void foo(char *ch) { snprintf(0, 0, "%.*s%08x", 1, ch, 1); }
^~~
0x12a98db operator+=
../../gcc/gcc/gimple-ssa-sprintf.c:214
0x12a98db add_bytes
../../gcc/gcc/gimple-ssa-sprintf.c:2119
0x12a98db compute_format_length
../../gcc/gcc/gimple-ssa-sprintf.c:2211
0x12a98db handle_gimple_call
../../gcc/gcc/gimple-ssa-sprintf.c:2775
0x12a98db execute
../../gcc/gcc/gimple-ssa-sprintf.c:2802
