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[committed] Add testcases for 2 fixed PRs (PR rtl-optimization/8336[34])
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Segher Boessenkool <segher at kernel dot crashing dot org>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 12 Dec 2017 10:53:09 +0100
- Subject: [committed] Add testcases for 2 fixed PRs (PR rtl-optimization/8336[34])
- Authentication-results: sourceware.org; auth=none
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
Hi!
These 2 PRs were fixed with r255506, I've tested these testcases
on x86_64-linux {-m32,-m64} with current trunk as well as trunk before that
change (where it FAILed) and committed to trunk as obvious.
2017-12-12 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/83363
PR rtl-optimization/83364
* gcc.dg/pr83363.c: New test.
* gcc.dg/pr83364.c: New test.
--- gcc/testsuite/gcc.dg/pr83363.c.jj 2017-12-12 10:46:08.639485075 +0100
+++ gcc/testsuite/gcc.dg/pr83363.c 2017-12-12 10:43:03.253793460 +0100
@@ -0,0 +1,26 @@
+/* PR rtl-optimization/83363 */
+/* { dg-do run } */
+/* { dg-options "-O2 -fno-forward-propagate" } */
+
+unsigned char a;
+unsigned int b;
+
+static unsigned short __attribute__ ((noinline, noclone))
+foo (unsigned short x)
+{
+ x -= b;
+ x <<= x == 0;
+ a = ~0;
+ a >>= (unsigned char) x == 0;
+ x *= a -= ~a;
+ return x;
+}
+
+int
+main ()
+{
+ asm volatile ("" : : : "memory");
+ if (foo (3) != (unsigned short) (3 * (unsigned char) ~0))
+ __builtin_abort ();
+ return 0;
+}
--- gcc/testsuite/gcc.dg/pr83364.c.jj 2017-12-12 10:46:11.422450423 +0100
+++ gcc/testsuite/gcc.dg/pr83364.c 2017-12-12 10:46:02.486561690 +0100
@@ -0,0 +1,22 @@
+/* PR rtl-optimization/83364 */
+/* { dg-do run } */
+/* { dg-options "-O -fno-forward-propagate -fno-tree-coalesce-vars -fno-tree-ter" } */
+
+int a;
+
+static int __attribute__ ((noinline, noclone))
+foo (unsigned char c)
+{
+ c <<= (long long) c != a;
+ c = c << 7 | c >> 1;
+ return c;
+}
+
+int
+main ()
+{
+ asm volatile ("" : : : "memory");
+ if (foo (0) != 0)
+ __builtin_abort ();
+ return 0;
+}
Jakub