* [PATCH] Add testcase for tree-optimization/67916
@ 2015-12-01 15:18 Marek Polacek
2015-12-01 15:28 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Marek Polacek @ 2015-12-01 15:18 UTC (permalink / raw)
To: GCC Patches
This PR was fixed in r228767 (or went latent?), but this testcase has never
been added.
Tested on x86_64-linux, ok for trunk?
2015-12-01 Marek Polacek <polacek@redhat.com>
PR tree-optimization/67916
* gcc.dg/torture/pr67916.c: New test.
diff --git gcc/testsuite/gcc.dg/torture/pr67916.c gcc/testsuite/gcc.dg/torture/pr67916.c
index e69de29..88541f9 100644
--- gcc/testsuite/gcc.dg/torture/pr67916.c
+++ gcc/testsuite/gcc.dg/torture/pr67916.c
@@ -0,0 +1,46 @@
+/* PR tree-optimization/67916 */
+/* { dg-do run } */
+
+int a[6], b = 1, d, e;
+long long c;
+static int f = 1;
+
+void
+fn1 (int p1)
+{
+ b = (b >> 1) & (1 ^ a[(1 ^ p1) & 5]);
+}
+
+void
+fn2 ()
+{
+ b = (b >> 1) & (1 ^ a[(b ^ 1) & 1]);
+ fn1 (c >> 1 & 5);
+ fn1 (c >> 2 & 5);
+ fn1 (c >> 4 & 5);
+ fn1 (c >> 8 & 5);
+}
+
+int
+main ()
+{
+ int i, j;
+ for (; d;)
+ {
+ for (; e;)
+ fn2 ();
+ f = 0;
+ }
+ for (i = 0; i < 8; i++)
+ {
+ if (f)
+ i = 9;
+ for (j = 0; j < 7; j++)
+ fn2 ();
+ }
+
+ if (b != 0)
+ __builtin_abort ();
+
+ return 0;
+}
Marek
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] Add testcase for tree-optimization/67916
2015-12-01 15:18 [PATCH] Add testcase for tree-optimization/67916 Marek Polacek
@ 2015-12-01 15:28 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2015-12-01 15:28 UTC (permalink / raw)
To: Marek Polacek; +Cc: GCC Patches
On Tue, Dec 1, 2015 at 4:18 PM, Marek Polacek <polacek@redhat.com> wrote:
> This PR was fixed in r228767 (or went latent?), but this testcase has never
> been added.
>
> Tested on x86_64-linux, ok for trunk?
Ok.
Richard.
> 2015-12-01 Marek Polacek <polacek@redhat.com>
>
> PR tree-optimization/67916
> * gcc.dg/torture/pr67916.c: New test.
>
> diff --git gcc/testsuite/gcc.dg/torture/pr67916.c gcc/testsuite/gcc.dg/torture/pr67916.c
> index e69de29..88541f9 100644
> --- gcc/testsuite/gcc.dg/torture/pr67916.c
> +++ gcc/testsuite/gcc.dg/torture/pr67916.c
> @@ -0,0 +1,46 @@
> +/* PR tree-optimization/67916 */
> +/* { dg-do run } */
> +
> +int a[6], b = 1, d, e;
> +long long c;
> +static int f = 1;
> +
> +void
> +fn1 (int p1)
> +{
> + b = (b >> 1) & (1 ^ a[(1 ^ p1) & 5]);
> +}
> +
> +void
> +fn2 ()
> +{
> + b = (b >> 1) & (1 ^ a[(b ^ 1) & 1]);
> + fn1 (c >> 1 & 5);
> + fn1 (c >> 2 & 5);
> + fn1 (c >> 4 & 5);
> + fn1 (c >> 8 & 5);
> +}
> +
> +int
> +main ()
> +{
> + int i, j;
> + for (; d;)
> + {
> + for (; e;)
> + fn2 ();
> + f = 0;
> + }
> + for (i = 0; i < 8; i++)
> + {
> + if (f)
> + i = 9;
> + for (j = 0; j < 7; j++)
> + fn2 ();
> + }
> +
> + if (b != 0)
> + __builtin_abort ();
> +
> + return 0;
> +}
>
> Marek
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