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Check is_single_const in intersect_with_plats

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2018-05-11  Martin Jambor  <mjambor@suse.cz>

	PR ipa/85655
	* ipa-cp.c (intersect_with_plats): Check that the lattice contains
	single const.

testsuite/
	* g++.dg/lto/pr85655_0.C: New test.

From-SVN: r260165
This commit is contained in:
Martin Jambor 2018-05-11 17:55:15 +02:00 committed by Martin Jambor
parent b901c875c9
commit 063c552959
4 changed files with 56 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2018-05-11 Martin Jambor <mjambor@suse.cz>
PR ipa/85655
* ipa-cp.c (intersect_with_plats): Check that the lattice contains
single const.
2018-05-11 Richard Earnshaw <rearnsha@arm.com>
PR target/85733

4
gcc/ipa-cp.c
View File

@ -4127,7 +4127,9 @@ intersect_with_plats (struct ipcp_param_lattices *plats,
if (aglat->offset - offset == item->offset)
{
gcc_checking_assert (item->value);
if (values_equal_for_ipcp_p (item->value, aglat->values->value))
if (aglat->is_single_const ()
&& values_equal_for_ipcp_p (item->value,
aglat->values->value))
found = true;
break;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-05-11 Martin Jambor <mjambor@suse.cz>
PR ipa/85655
* g++.dg/lto/pr85655_0.C: New test.
2018-05-11 Sebastian Peryt <sebastian.peryt@intel.com>
* gcc.target/i386/tpause-1.c: New test.

42
gcc/testsuite/g++.dg/lto/pr85655_0.C Normal file
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@ -0,0 +1,42 @@
// { dg-lto-do link }
// { dg-require-effective-target shared }
// { dg-require-effective-target fpic }
// { dg-lto-options {{-O2 -fPIC -shared -flto}} }
int a;
void b(...);
void c(int);
enum { d, e, f, g, h, i, j, k };
class l {
public:
int ac;
bool m;
l(char *);
int n();
};
struct o {
int ad;
o(int p = 0) : ad(p) {}
};
class C : public l {
public:
char q;
C(o) : l(&q) { m |= ac & a ?: 9; }
};
class r : C {
public:
char s;
r(o p, char) : C(p) {
if (n()) {
b(a, s, "");
c(5);
}
}
};
class t : C {
public:
t(int) : C(d) {}
};
r ag('b', 0), ah(o(), 0), ai(e, 0), aj(f, 0), ak(g, 0), al(h, 0), am(k, 0),
an(i, 0), ao(j, 0);
t ap(0);