Clean up tests where a later dg-do completely overrides another.

The attached patch cleans up some (mostly unnecessary) dg-do
directives in the gcc.dg and gcc.target test cases.

gcc/testsuite/ChangeLog:

2016-04-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* gcc/testsuite/gcc.dg/cpp/mac-dir-2.c: Remove pointless duplicate
	dg-do.
	* gcc/testsuite/gcc.dg/pr27003.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/cswtch.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-4.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-5.c: Likewise.
	* gcc.target/arc/mxy.c: Likewise.
	* gcc.target/arc/mswape.c: Likewise.
	* gcc.target/arc/mrtsc.c: Likewise.
	* gcc.target/arc/mcrc.c: Likewise.
	* gcc.target/arc/mdsp-packa.c: Likewise.
	* gcc.target/arc/mdvbf.c: Likewise.
	* gcc.target/arc/mlock.c: Likewise.
	* gcc.target/arc/mmac-24.c: Likewise.
	* gcc.dg/spec-options.c: Switch order of the two "dg-do run".

From-SVN: r235628

gcc/testsuite/ChangeLog

+2016-04-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>
+
+	* gcc/testsuite/gcc.dg/cpp/mac-dir-2.c: Remove pointless duplicate
+	dg-do.
+	* gcc/testsuite/gcc.dg/pr27003.c: Likewise.
+	* gcc/testsuite/gcc.dg/tree-ssa/cswtch.c: Likewise.
+	* gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c: Likewise.
+	* gcc/testsuite/gcc.dg/tree-ssa/predcom-4.c: Likewise.
+	* gcc/testsuite/gcc.dg/tree-ssa/predcom-5.c: Likewise.
+	* gcc.target/arc/mxy.c: Likewise.
+	* gcc.target/arc/mswape.c: Likewise.
+	* gcc.target/arc/mrtsc.c: Likewise.
+	* gcc.target/arc/mcrc.c: Likewise.
+	* gcc.target/arc/mdsp-packa.c: Likewise.
+	* gcc.target/arc/mdvbf.c: Likewise.
+	* gcc.target/arc/mlock.c: Likewise.
+	* gcc.target/arc/mmac-24.c: Likewise.
+	* gcc.dg/spec-options.c: Switch order of the two "dg-do run".
+
 2016-04-29  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 	    Matthijs Kooijman  <matthijs@stdin.nl>
 	    Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

gcc/testsuite/gcc.dg/cpp/mac-dir-2.c

 /* Copyright (C) 2002 Free Software Foundation, Inc.  */
 
-/* { dg-do preprocess } */
-
 /* Source: Neil Booth, 26 Feb 2002.
 
    Test that we allow directives in macro arguments.  */

gcc/testsuite/gcc.dg/pr27003.c

-/* { dg-do compile } */
 /* { dg-do run } */
 /* { dg-options "-Os" } */
 

gcc/testsuite/gcc.dg/spec-options.c

 /* Check that -mfoo is accepted if defined in a user spec
    and that it is not passed on the command line.  */
 /* Must be processed in EXTRA_SPECS to run.  */
-/* { dg-do run { target sh*-*-* } } */
 /* { dg-do compile } */
+/* { dg-do run { target sh*-*-* } } */
 /* { dg-options "-B${srcdir}/gcc.dg --specs=foo.specs -tfoo" } */
 
 extern void abort(void);

gcc/testsuite/gcc.dg/tree-ssa/cswtch.c

-/* { dg-do compile } */
 /* { dg-options "-O2 -fdump-tree-switchconv" } */
 /* { dg-do run } */
 

gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c

-/* { dg-do compile } */
 /* { dg-do run } */
 /* { dg-options "-O2 -funroll-loops --param max-unroll-times=8 -fpredictive-commoning -fdump-tree-pcom-details" } */
 

gcc/testsuite/gcc.dg/tree-ssa/predcom-4.c

-/* { dg-do compile } */
 /* { dg-do run } */
 /* { dg-options "-O2 -funroll-loops --param max-unroll-times=8 -fpredictive-commoning -fdump-tree-pcom-details" } */
 

gcc/testsuite/gcc.dg/tree-ssa/predcom-5.c

-/* { dg-do compile } */
 /* { dg-do run } */
 /* { dg-options "-O2 -funroll-loops --param max-unroll-times=8 -fpredictive-commoning -fdump-tree-pcom-details" } */
 

gcc/testsuite/gcc.target/arc/mcrc.c

-/* { dg-do compile } */
 /* { dg-options "-mcrc" } */
 /* { dg-do assemble } */
 

gcc/testsuite/gcc.target/arc/mlock.c

-/* { dg-do compile } */
 /* { dg-options "-mlock" } */
 /* { dg-do assemble } */
 

gcc/testsuite/gcc.target/arc/mmac-24.c

-/* { dg-do compile } */
 /* { dg-options "-mmac-24" } */
 /* { dg-do assemble } */
 

gcc/testsuite/gcc.target/arc/mrtsc.c

-/* { dg-do compile } */
 /* { dg-options "-mrtsc" } */
 /* { dg-do assemble } */
 

gcc/testsuite/gcc.target/arc/mswape.c

-/* { dg-do compile } */
 /* { dg-options "-mswape" } */
 /* { dg-do assemble } */
 

gcc/testsuite/gcc.target/arc/mxy.c

-/* { dg-do compile } */
 /* { dg-options "-mxy" } */
 /* { dg-do assemble } */