re PR middle-end/57393 (error: definition in block 4 follows the use / internal…

re PR middle-end/57393 (error: definition in block 4 follows the use / internal compiler error: verify_ssa failed)

	PR middle-end/57393
	PR tree-optimization/58018
	PR tree-optimization/58131
	* gcc.dg/torture/pr57393-1.c: New test.
	* gcc.dg/torture/pr57393-2.c: New test.
	* gcc.dg/torture/pr57393-3.c: New test.
	* gcc.dg/torture/pr58018.c: New test.
	* gcc.dg/torture/pr58131.c: New test.
	* gfortran.dg/pr57393-1.f90: New test.
	* gfortran.dg/pr57393-2.f90: New test.

From-SVN: r205466

gcc/testsuite/ChangeLog

+2013-11-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/57393
+	PR tree-optimization/58018
+	PR tree-optimization/58131
+	* gcc.dg/torture/pr57393-1.c: New test.
+	* gcc.dg/torture/pr57393-2.c: New test.
+	* gcc.dg/torture/pr57393-3.c: New test.
+	* gcc.dg/torture/pr58018.c: New test.
+	* gcc.dg/torture/pr58131.c: New test.
+	* gfortran.dg/pr57393-1.f90: New test.
+	* gfortran.dg/pr57393-2.f90: New test.
+
 2013-11-27  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
 	* gfortran.dg/nan_7.f90: Disable for little endian PowerPC.

gcc/testsuite/gcc.dg/torture/pr57393-1.c

+/* PR middle-end/57393 */
+/* { dg-do compile } */
+/* { dg-additional-options "-g -ffast-math" } */
+
+extern void bar (double);
+
+struct S { int n; };
+  
+void
+foo (struct S s, double a, int i, int j, int k)
+{
+  struct S t;
+  bar (s.n * a * i * j);
+  t.n = s.n * a * i * k;
+}

gcc/testsuite/gcc.dg/torture/pr57393-2.c

+/* PR middle-end/57393 */
+/* { dg-do compile } */
+
+char a;
+
+foo (int **p)
+{
+  int b;
+  for (;;)
+    {
+      int c[1] = { 0 };
+      unsigned *d = &c[0];
+      for (b = 7; b; b--)
+	**p &= --*d >= a;
+    }
+}

gcc/testsuite/gcc.dg/torture/pr57393-3.c

+/* PR middle-end/57393 */
+/* { dg-do compile } */
+
+int a, b, c;
+void foo (void);
+
+int
+bar (void)
+{
+  for (;;)
+    {
+      foo ();
+      int d = a = 0;
+      for (; a < 7; ++a)
+	{
+	  d--;
+	  b &= c <= d;
+	}
+    }
+}

gcc/testsuite/gcc.dg/torture/pr58018.c

+/* PR tree-optimization/58018 */
+/* { dg-do compile } */
+
+int a, b, c, d, e;
+
+void
+bar (int p)
+{
+  int f = b;
+  e &= p <= (f ^= 0);
+}
+    
+void
+foo ()
+{
+  for (; d; d++)
+    {
+      bar (a && c);
+      bar (0);
+      bar (1);
+    }
+}

gcc/testsuite/gcc.dg/torture/pr58131.c

+/* PR tree-optimization/58131 */
+/* { dg-do compile } */
+
+short a;
+int b, c, d[1][4][2];
+
+void
+foo (void)
+{
+  int *e;
+  for (b = 1; ; b--)
+    {
+      if (*e)
+	break;
+      for (c = 2; c >= 0; c--)
+	{
+	  *e |= d[0][3][b] != a;
+	  int *f = &d[0][3][b];
+	  *f = 0;
+	}
+    }
+}

gcc/testsuite/gfortran.dg/pr57393-1.f90

+! PR middle-end/57393
+! { dg-do compile }
+! { dg-options "-g -O2 -ffast-math" }
+
+SUBROUTINE pr57393(nn,e,g,t0,t1,t2,t3,t4,t5,t6,t7,&
+                   t8,t9,t10,t11,t12,t13,t14,t15,&
+                   t16,t17,t18,t19,t20,t21,t22,t23,&
+                   t24,t25,t26,t27,t28,t29,t30,&
+                   t31,t32,t33,t34,t35,t36,t37,t38,&
+                   t39,t40,t41,t42,t43,t44,t45,t46,t47)
+  IMPLICIT REAL*8 (t)
+  INTEGER, PARAMETER :: dp=8
+  REAL(kind=dp) :: e(nn)
+  DO ii=1,nn
+     t48 = 0.1955555555e2_dp * t1 * t2 + &
+           0.6000000000e1_dp * t3 * t4 * t5
+     t49 = 0.1620000000e3_dp * t6 * t7 * t8 + &
+           0.1080000000e3_dp * t6 * t9 * t5 - &
+           0.6000000000e1_dp * t10 * t20 * t21 * t55 - &
+           0.2400000000e2_dp * t10 * t11 * t12 - &
+           0.1200000000e2_dp * t13 * t14 * t15
+     t50 = t49 + t16
+     t51 = (3 * t17 * t18 * t19) + &
+           (t22 * t23 * t19) + (t50 * t19) - &
+           0.3333333336e0_dp * t24 * t25
+     t52 = 0.1555555556e1_dp * t26 * t27 * t12 + &
+           (t51 + t28 + t29 + t30) *  &
+           0.3125000000e0_dp * t31 * t32 * t33 * t34
+     t53 = -0.1000000001e1_dp * t35 * t36 * t5 - &
+           (t37 + t38 + t39 + t52) - &
+           0.8333333340e-1_dp * t40 * t41 * t42
+     t54 = -0.1000000001e1_dp * t43 * t44 * t45 - &
+           t47 * (t46 + t53)
+     IF (g >= 3 .OR. g == -3) THEN
+       e(ii) = e(ii) + t54 * t0
+     END IF
+  END DO
+END SUBROUTINE pr57393

gcc/testsuite/gfortran.dg/pr57393-2.f90

+! PR middle-end/57393
+! { dg-do compile }
+! { dg-options "-g -O2" }
+
+SUBROUTINE pr57393 ( a1, a2, a3, a4, a5, a6, a7 )
+  COMPLEX(kind=8), DIMENSION(:), INTENT(IN) :: a1
+  INTEGER, DIMENSION(:), INTENT(IN) :: a2, a3, a5, a6
+  COMPLEX(kind=8), DIMENSION(:), INTENT(INOUT) :: a4
+  a4(a6(1)+1:a6(1)+a5(1))=a1(a3(1)+1:a3(1)+a2(1))
+END SUBROUTINE pr57393