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re PR ipa/92883 (ICE in compare_values_warnv)

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PR ipa/92883
	* ipa-cp.c (propagate_vr_across_jump_function): Pass jvr rather
	than *jfunc->m_vr to intersect.  Formatting fix.

	* gcc.dg/ipa/pr92883.c: New test.

From-SVN: r279194
This commit is contained in:
Jakub Jelinek 2019-12-10 22:04:57 +01:00 committed by Jakub Jelinek
parent 6b24e342cb
commit 27f418b8ec
4 changed files with 26 additions and 7 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2019-12-10 Jakub Jelinek <jakub@redhat.com>
PR ipa/92883
* ipa-cp.c (propagate_vr_across_jump_function): Pass jvr rather
than *jfunc->m_vr to intersect. Formatting fix.
PR middle-end/92825
* cfgexpand.c (add_stack_protection_conflicts): Change return type
from void to bool, return true if at least one stack_vars[i].decl

12
gcc/ipa-cp.c
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@ -2369,12 +2369,10 @@ propagate_vr_across_jump_function (cgraph_edge *cs, ipa_jump_func *jfunc,
value_range vr;
if (TREE_CODE_CLASS (operation) == tcc_unary)
{
ipa_vr_operation_and_type_effects (&vr,
&src_lats->m_value_range.m_vr,
operation, param_type,
operand_type);
}
ipa_vr_operation_and_type_effects (&vr,
&src_lats->m_value_range.m_vr,
operation, param_type,
operand_type);
/* A crude way to prevent unbounded number of value range updates
in SCC components. We should allow limited number of updates within
SCC, too. */
@ -2400,7 +2398,7 @@ propagate_vr_across_jump_function (cgraph_edge *cs, ipa_jump_func *jfunc,
NOP_EXPR,
param_type,
jfunc->m_vr->type ()))
vr.intersect (*jfunc->m_vr);
vr.intersect (jvr);
}
return dest_lat->meet_with (&vr);
}

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2019-12-10 Jakub Jelinek <jakub@redhat.com>
PR ipa/92883
* gcc.dg/ipa/pr92883.c: New test.
PR middle-end/92825
* gcc.target/i386/pr92825.c: New test.

14
gcc/testsuite/gcc.dg/ipa/pr92883.c Normal file
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@ -0,0 +1,14 @@
/* PR ipa/92883 */
/* { dg-do compile } */
/* { dg-options "-O2" } */
int a, b, c, d;
unsigned e;
void baz (void *, int);
void grault (int, unsigned long);
int foo (unsigned g) { return a / g; }
void bar (void *g) { if (b) baz (g, 5); }
static void quux (int, unsigned long);
static void qux (unsigned long g) { if (g) { d = foo (-1); quux (e, (d & 2) + g); } }
static void quux (int g, unsigned long m) { (void) g; grault (c, m); bar (""); }
void corge () { qux (e); }