[Bug rtl-optimization/63448] [4.9/5 Regression] ICE when compiling atlas 3.10.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63448 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #11 from Jakub Jelinek jakub at gcc dot gnu.org --- Should be fixed now.
[Bug rtl-optimization/63448] [4.9/5 Regression] ICE when compiling atlas 3.10.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63448 --- Comment #8 from Vladimir Makarov vmakarov at gcc dot gnu.org --- I already saw such problem. It is chain of spills and reassignment of non-reload pseudos. Each pass considers only 1-2 pseudos and very few insns. We just need 2 more passes to finish RA for the test. The current code of LRA looping prevention is too conservative for the case. Finally I have an idea how to solve this kind of problems. The patch is on the way.
[Bug rtl-optimization/63448] [4.9/5 Regression] ICE when compiling atlas 3.10.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63448 --- Comment #9 from Vladimir Makarov vmakarov at gcc dot gnu.org --- Author: vmakarov Date: Wed Oct 15 15:48:33 2014 New Revision: 216270 URL: https://gcc.gnu.org/viewcvs?rev=216270root=gccview=rev Log: 2014-10-15 Vladimir Makarov vmaka...@redhat.com PR rtl-optimization/63448 * lra-int.h (LRA_MAX_CONSTRAINT_ITERATION_NUMBER): Remove. (LRA_MAX_ASSIGNMENT_ITERATION_NUMBER): New. (LRA_MAX_INHERITANCE_PASSES): Use it. (lra_constraint_iter_after_spill): Remove. (lra_assignment_iter): New. (lra_assignment_iter_after_spill): New. * lra-assigns.c (lra_assignment_iter): New. (lra_assignment_iter_after_spill): New. (former_reload_pseudo_spill_p): New. (spill_for): Set up former_reload_pseudo_spill_p. (setup_live_pseudos_and_spill_after_risky): Ditto. (assign_by_spills): Ditto. (lra_assign): Increment lra_assignment_iter. Print the iteration number. Reset former_reload_pseudo_spill_p. Check lra_assignment_iter_after_spill. * lra.c (lra): Remove lra_constraint_iter_after_spill. Initialize lra_assignment_iter and lra_assignment_iter_after_spill. * lra-constraints.c (lra_constraint_iter_after_spill): Remove. (lra_constraints): Remove code with lra_assignment_iter_after_spill. 2014-10-15 Vladimir Makarov vmaka...@redhat.com PR rtl-optimization/63448 * gcc.target/i386/pr63448.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/pr63448.c Modified: trunk/gcc/ChangeLog trunk/gcc/lra-assigns.c trunk/gcc/lra-constraints.c trunk/gcc/lra-int.h trunk/gcc/lra.c trunk/gcc/testsuite/ChangeLog
[Bug rtl-optimization/63448] [4.9/5 Regression] ICE when compiling atlas 3.10.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63448 --- Comment #10 from Vladimir Makarov vmakarov at gcc dot gnu.org --- Author: vmakarov Date: Wed Oct 15 15:51:07 2014 New Revision: 216271 URL: https://gcc.gnu.org/viewcvs?rev=216271root=gccview=rev Log: 2014-10-15 Vladimir Makarov vmaka...@redhat.com PR rtl-optimization/63448 * lra-int.h (LRA_MAX_CONSTRAINT_ITERATION_NUMBER): Remove. (LRA_MAX_ASSIGNMENT_ITERATION_NUMBER): New. (LRA_MAX_INHERITANCE_PASSES): Use it. (lra_constraint_iter_after_spill): Remove. (lra_assignment_iter): New. (lra_assignment_iter_after_spill): New. * lra-assigns.c (lra_assignment_iter): New. (lra_assignment_iter_after_spill): New. (former_reload_pseudo_spill_p): New. (spill_for): Set up former_reload_pseudo_spill_p. (setup_live_pseudos_and_spill_after_risky): Ditto. (assign_by_spills): Ditto. (lra_assign): Increment lra_assignment_iter. Print the iteration number. Reset former_reload_pseudo_spill_p. Check lra_assignment_iter_after_spill. * lra.c (lra): Remove lra_constraint_iter_after_spill. Initialize lra_assignment_iter and lra_assignment_iter_after_spill. * lra-constraints.c (lra_constraint_iter_after_spill): Remove. (lra_constraints): Remove code with lra_assignment_iter_after_spill. 2014-10-15 Vladimir Makarov vmaka...@redhat.com PR rtl-optimization/63448 * gcc.target/i386/pr63448.c: New test. Added: branches/gcc-4_9-branch/gcc/testsuite/gcc.target/i386/pr63448.c Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/lra-assigns.c branches/gcc-4_9-branch/gcc/lra-constraints.c branches/gcc-4_9-branch/gcc/lra-int.h branches/gcc-4_9-branch/gcc/lra.c branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/63448] [4.9/5 Regression] ICE when compiling atlas 3.10.2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63448
Jakub Jelinek jakub at gcc dot gnu.org changed:
What|Removed |Added
Priority|P3 |P1
CC||jakub at gcc dot gnu.org
Target Milestone|--- |4.9.2
Summary|ICE when compiling atlas|[4.9/5 Regression] ICE when
|3.10.2 |compiling atlas 3.10.2
--- Comment #7 from Jakub Jelinek jakub at gcc dot gnu.org ---
int a, d, e, g, h, j;
float b, c, k, l, m, n;
int *__restrict i;
void
foo (void)
{
int o = e;
int *p;
float *q, *r = (float *) 0x1234000;
float s, t, u, v, w, x;
do
{
for (a = o; a; a--)
{
s += m;
t += n;
u += m;
v += n;
w += d;
x += d;
n = l;
s += r[1];
t += n;
v += r[1];
m = k * r[4];
n = q[0] * r[4];
s += m;
m = q[1] * r[4];
t += n;
q += g;
k = *q;
n = q[1] * r[4];
s += m;
t += n;
u += r[4];
m = q[8] * r[4];
q += 1;
n = q[1] * r[4];
s += m;
m = q[4];
t += n;
q += g;
w += m;
m = k * r[4];
s += m;
t += q[0];
m = q[1] * r[4];
v += q[0];
n = q[10] * r[4];
s += m;
t += n;
u += b;
m = q[8] * r[4];
n = q[2] * r[4];
s += m;
m = q[4] * r[4];
t += n;
q++;
n = q[2] * r[16];
s += m;
m = q[4];
t += n;
s += m;
t += r[6];
q += g;
k = *q;
w += m;
m = k * r[20];
x += r[16];
n = q[1] * r[20];
s += m;
t += n;
q += g;
k = *q;
w += m;
m = k * r[2];
n = q[1] * r[22];
s += m;
m = q[4];
t += n;
q += g;
s += m;
t += q[0];
s += m;
u += m;
n = q[1] * r[22];
s += m;
m = q[4] * r[22];
t += n;
q += g;
k = 1;
w += m;
c = q[10];
x += r[22];
s += m;
t += r[22];
u += m;
v += r[22];
n = q[10] * r[30];
d = r[32];
l = q[1];
b = 0;
w += m;
m = r[32];
x += n;
r = 0;
}
*i = s;
p[0] = t;
p[1] = u;
p[6] = v;
p[8] = w;
p[10] = x;
}
while (j);
}
at -O -m32 -std=c99 ICE started at r210824 aka PR60969 fix.
