Public bug reported:
seen on aarch64-linux-gnu with gcc-4.8.x everywhere, fixed in 4.9
(worked around with -O1)
$ cat trunctfdf2.i
long a;
double b;
double fn1() {
union {
long double f;
__uint128_t i;
} c = {b};
__uint128_t d = c.i & 2;
a = 1;
long e = 1 | d;
return e;
}
$ gcc -std=gnu99 -c -g -O2 trunctfdf2.i
trunctfdf2.i: In function 'fn1':
trunctfdf2.i:12:1: internal compiler error: in trunc_int_for_mode, at
explow.c:55
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
** Affects: gcc-4.8 (Ubuntu)
Importance: Medium
Status: Confirmed
** Changed in: gcc-4.8 (Ubuntu)
Status: New => Confirmed
** Changed in: gcc-4.8 (Ubuntu)
Importance: Undecided => Medium
** Description changed:
- seen with gcc-4.8.x everywhere, fixed in 4.9
+ seen on aarch64-linux-gnu with gcc-4.8.x everywhere, fixed in 4.9
+ (worked around with -O1)
- $ cat trunctfdf2.i
+ $ cat trunctfdf2.i
long a;
double b;
double fn1() {
- union {
- long double f;
- __uint128_t i;
- } c = {b};
- __uint128_t d = c.i & 2;
- a = 1;
- long e = 1 | d;
- return e;
+ union {
+ long double f;
+ __uint128_t i;
+ } c = {b};
+ __uint128_t d = c.i & 2;
+ a = 1;
+ long e = 1 | d;
+ return e;
}
- $ gcc -std=gnu99 -c -g -O2 trunctfdf2.i
+ $ gcc -std=gnu99 -c -g -O2 trunctfdf2.i
trunctfdf2.i: In function 'fn1':
trunctfdf2.i:12:1: internal compiler error: in trunc_int_for_mode, at
explow.c:55
- }
- ^
+ }
+ ^
Please submit a full bug report,
with preprocessed source if appropriate.
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https://bugs.launchpad.net/bugs/1667761
Title:
ICE in trunc_int_for_mode, at explow.c:55
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