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Drop TREE_OVERFLOW 

gcc/ChangeLog:

2016-09-23  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR ipa/77677
	* ipa-cp.c (propagate_vr_accross_jump_function): Drop TREE_OVERFLOW
	from constant while creating value range.

gcc/testsuite/ChangeLog:

2016-09-23  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR ipa/77677
	* gcc.dg/torture/pr77677.c: New test.

From-SVN: r240420
This commit is contained in:
Kugan Vivekanandarajah 2016-09-23 10:25:09 +00:00 committed by Kugan Vivekanandarajah
parent 8ed3eeac20
commit 1e40134071
4 changed files with 31 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-09-23 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/77677
* ipa-cp.c (propagate_vr_accross_jump_function): Drop TREE_OVERFLOW
from constant while creating value range.
2016-09-23 Renlin Li <renlin.li@arm.com>
* ira.c (ira): Move ira_use_lra_p initialization code to ...

2
gcc/ipa-cp.c
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@ -2065,6 +2065,8 @@ propagate_vr_accross_jump_function (cgraph_edge *cs,
tree val = ipa_get_jf_constant (jfunc);
if (TREE_CODE (val) == INTEGER_CST)
{
if (TREE_OVERFLOW_P (val))
val = drop_tree_overflow (val);
jfunc->vr_known = true;
jfunc->m_vr.type = VR_RANGE;
jfunc->m_vr.min = val;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-09-23 Kugan Vivekanandarajah <kuganv@linaro.org>
PR ipa/77677
* gcc.dg/torture/pr77677.c: New test.
2016-09-23 Andre Vehreschild <vehre@gcc.gnu.org>
* gfortran.dg/coarray_lib_comm_1.f90: Using the old caf-interface

18
gcc/testsuite/gcc.dg/torture/pr77677.c Normal file
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@ -0,0 +1,18 @@
/* PR ipa/77677 */
/* { dg-do compile } */
int a, b;
static void fn1 (short p1)
{
a = -p1;
if (a || b)
__builtin_printf ("%d\n", b);
}
int main ()
{
int c[] = { 40000 };
fn1 (c[0]);
return 0;
}