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re PR rtl-optimization/85925 (compilation of masking with 257 goes wrong in combine at -02)

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PR rtl-optimization/85925
	* gcc.c-torture/execute/20181120-1.c: Require effective target
	int32plus.
	(u): New variable.
	(main): Compare d against u.f1 rather than 0x101.  Use 0x4030201
	instead of 0x10101.

From-SVN: r266357
This commit is contained in:
Jakub Jelinek 2018-11-21 21:45:59 +01:00 • committed by Jakub Jelinek
parent 96af90b5d6
commit 4fd723f869
2 changed files with 13 additions and 2 deletions
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9
gcc/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2018-11-21 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/85925
* gcc.c-torture/execute/20181120-1.c: Require effective target
int32plus.
(u): New variable.
(main): Compare d against u.f1 rather than 0x101. Use 0x4030201
instead of 0x10101.
018-11-21 Lokesh Janghel <lokeshjanghel91@gmail.com>
PR target/85667

6
gcc/testsuite/gcc.c-torture/execute/20181120-1.c
View file

@ -1,4 +1,5 @@
/* PR rtl-optimization/85925 */
/* { dg-require-effective-target int32plus } */
/* Testcase by <sudi@gcc.gnu.org> */
int a, c, d;
@ -9,17 +10,18 @@ union U1 {
unsigned f0;
unsigned f1 : 15;
};
volatile union U1 u = { 0x4030201 };
int main (void)
{
for (c = 0; c <= 1; c++) {
union U1 f = {0x10101};
union U1 f = {0x4030201};
if (c == 1)
b;
*e = f.f1;
}
if (d != 0x101)
if (d != u.f1)
__builtin_abort ();
return 0;