https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83081
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2017-12-19
CC| |aldyh at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
I can't reproduce with a hacked up cross, so I may be missing something.
Could the original reporter verify this is still an issue?
For the record, this is how I am trying to reproduce:
~/src/gcc/configure --enable-languages=c,c++ --disable-bootstrap
--disable-multilib --target=arm-none-linux-gnueabi
"Preprocessed" source:
tor:~/bld/t/gcc$ cat pr80218.c
/* { dg-options "-O2 -fdump-rtl-ira-details-blocks" } */
/* { dg-require-effective-target c99_runtime } */
//#include <math.h>
extern float sqrtf (float __x) __attribute__ ((__nothrow__ , __leaf__));
extern float acosf (float __x) __attribute__ ((__nothrow__ , __leaf__));
void foo (float *);
void
f1 (float *x)
{
x[0] = sqrtf (x[0]);
}
void
f2 (float *x)
{
sqrtf (x[0]);
foo (x);
}
void
f3 (float *x)
{
acosf (x[0]);
foo (x);
}
/* { dg-final { scan-rtl-dump-not "Invalid sum" "ira" } } */
tor:~/bld/t/gcc$ ./cc1 pr80218.c -quiet -O2 -fdump-rtl-ira-details-blocks
-I/tmp
terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_M_construct null not valid
during RTL pass: final
pr80218.c: In function ‘f1’:
pr80218.c:14:1: internal compiler error: Aborted
I am ignoring the above ICE, as it's probably unrelated and happens past the
IRA pass the test cares about:
tor:~/bld/t/gcc$ grep Invalid.sum pr80218.c.275r.ira
tor:~/bld/t/gcc$
