On 28/06/16 10:51, Jiong Wang wrote:
On 27/06/16 17:26, Dominik Vogt wrote:
On Thu, Jun 09, 2016 at 09:52:39AM -0600, Jeff Law wrote:
On 06/08/2016 10:47 AM, Jiong Wang wrote:
As discussed on the PR
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70751,
here is the patch.
This commit has introduced an ICE with s390x, march=z13. Is it a
backend bug or one in the middleend?
-- x.c --
void foo(int *n, int off, int *m)
{
int i;
for(i = 0 ;i <= 3; i++)
{
n[off + i] = m[2 * i];
n[off + 7 - i] = m[2 * i + 1];
}
}
-- snip --
$ gcc -S -O3 -march=z13 x.c
x.c: In function ‘foo’:
x.c:10:1: internal compiler error: Max. number of generated reload
insns per insn is achieved (90)
I tried the following on gcc trunk (r237817, 28-June-2016), can't
reproduce the issue.
configure --target=s390-linux
./cc1 -O3 1.c -nostdinc -march=z13
Can you please paste "gcc -v -S -O3 -march=z13 x.c" to see what's
passed to cc1?
Reproduced with --target=s390x-linux.
