[Darwin, X86, testsuite] Update tests for common section use.

The tests amended here now have different code-gen with default
options because, previously, the access were indirected per Darwin
ABI for common accesses.  The revised code-gen does not match the
expected scan-asms because Darwin defaults to fPIC.  For these tests,
it seems that the best solution is to use '-mdynamic-no-pic' in the
m32 case which makes the output similar to the ElF platform default.

gcc/testsuite/ChangeLog:

2019-11-22  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.target/i386/pr27971.c: Use mdynamic-no-pic for m32 on
	Darwin.
	* gcc.target/i386/sse2-load-multi.c: Likewise.
	* gcc.target/i386/sse2-store-multi.c: Likewise.

From-SVN: r278631

gcc/testsuite/ChangeLog

+2019-11-22  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* gcc.target/i386/pr27971.c: Use mdynamic-no-pic for m32 on
+	Darwin.
+	* gcc.target/i386/sse2-load-multi.c: Likewise.
+	* gcc.target/i386/sse2-store-multi.c: Likewise.
+
 2019-11-22  Jakub Jelinek  <jakub@redhat.com>
 
 	Implement P1920R1, Missing feature-test macros 2017-2019.

gcc/testsuite/gcc.target/i386/pr27971.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -mno-tbm" } */
+/* { dg-additional-options "-mdynamic-no-pic" { target { *-*-darwin* && ia32 } } } */
 
 unsigned array[4];
 
@@ -16,3 +17,4 @@ unsigned foo(TYPE x)
 
 /* { dg-final { scan-assembler-not "shr\[^\\n\]*2" } } */
 /* { dg-final { scan-assembler "and\[^\\n\]*12" } } */
+ 
\ No newline at end of file

gcc/testsuite/gcc.target/i386/sse2-load-multi.c

 /* { dg-do compile } */
 /* { dg-options "-march=corei7 -O2" } */
+/* { dg-additional-options "-mdynamic-no-pic" { target { *-*-darwin* && ia32 } } } */
 
 #include <emmintrin.h>
 

gcc/testsuite/gcc.target/i386/sse2-store-multi.c

 /* { dg-do compile } */
 /* { dg-options "-march=corei7 -O2" } */
+/* { dg-additional-options "-mdynamic-no-pic" { target { *-*-darwin* && ia32 } } } */
 
 #include <emmintrin.h>