Change AArch64 specific FMAX/FMIN tests into generic MAX_EXPR/MIN_EXPR tests

gfortran now always uses MAX_EXPR/MIN_EXPR for MAX/MIN intrinsics, so the
AArch64 specific FMAX/FMIN tests are no longer valid.

2018-08-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* gfortran.dg/max_fmax_aarch64.f90: Rename to...
	* gfortran.dg/max_expr.f90: ...this.
	* gfortran.dg/min_fmin_aarch64.f90: Rename to...
	* gfortran.dg/min_expr.f90: ...this.

From-SVN: r263778

gcc/testsuite/ChangeLog

+2018-08-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* gfortran.dg/max_fmax_aarch64.f90: Rename to...
+	* gfortran.dg/max_expr.f90: ...this.
+	* gfortran.dg/min_fmin_aarch64.f90: Rename to...
+	* gfortran.dg/min_expr.f90: ...this.
+
 2018-08-22  Richard Sandiford  <richard.sandiford@arm.com>
 
 	PR tree-optimization/86725

gcc/testsuite/gfortran.dg/max_fmax_aarch64.f90 → gcc/testsuite/gfortran.dg/max_expr.f90

-! { dg-do compile { target aarch64*-*-* } }
+! { dg-do compile }
 ! { dg-options "-O2 -fdump-tree-optimized" }
 
 subroutine foo (a, b, c, d, e, f, g, h)
@@ -12,4 +12,4 @@ subroutine foof (a, b, c, d, e, f, g, h)
 end subroutine
 
 
-! { dg-final { scan-tree-dump-times "\.FMAX " 14 "optimized" } }
+! { dg-final { scan-tree-dump-times "MAX_EXPR " 14 "optimized" } }

gcc/testsuite/gfortran.dg/min_fmin_aarch64.f90 → gcc/testsuite/gfortran.dg/min_expr.f90

-! { dg-do compile { target aarch64*-*-* } }
+! { dg-do compile }
 ! { dg-options "-O2 -fdump-tree-optimized" }
 
 subroutine foo (a, b, c, d, e, f, g, h)
@@ -12,4 +12,4 @@ subroutine foof (a, b, c, d, e, f, g, h)
   a = min (a, b, c, d, e, f, g, h)
 end subroutine
 
-! { dg-final { scan-tree-dump-times "\.FMIN " 14 "optimized" } }
+! { dg-final { scan-tree-dump-times "MIN_EXPR " 14 "optimized" } }