Disable SHF_MERGE on Solaris 10/x86 (PR bootstrap/84017)

	gcc/testsuite:
	PR bootstrap/84017
	* gcc.dg/debug/dwarf2/prod-options.c: Add -fno-merge-debug-strings
	to dg-options.
	Simplify DW_AT_producer scan.

	gcc:
	PR bootstrap/84017
	* configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
	* configure: Regenerate.

From-SVN: r257179

gcc/ChangeLog

+2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR bootstrap/84017
+	* configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
+	* configure: Regenerate.
+
 2018-01-30  Richard Sandiford  <richard.sandiford@linaro.org>
 
 	* config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_0): New

gcc/configure

@@ -23571,6 +23571,14 @@ $as_echo "$gcc_cv_as_shf_merge" >&6; }
 
 
 fi
+case "$target" in
+  i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
+    # SHF_MERGE support in Solaris 10/x86 ld is broken.
+    if test x"$gnu_ld" = xno; then
+      gcc_cv_as_shf_merge=no
+    fi
+    ;;
+esac
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_GAS_SHF_MERGE `if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`

gcc/configure.ac

@@ -2954,6 +2954,14 @@ if test $gcc_cv_as_shf_merge = no; then
     [elf,2,12,0], [--fatal-warnings],
     [.section .rodata.str, "aMS", %progbits, 1])
 fi
+case "$target" in
+  i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
+    # SHF_MERGE support in Solaris 10/x86 ld is broken.
+    if test x"$gnu_ld" = xno; then
+      gcc_cv_as_shf_merge=no
+    fi
+    ;;
+esac
 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
   [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])

gcc/testsuite/ChangeLog

+2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR bootstrap/84017
+	* gcc.dg/debug/dwarf2/prod-options.c: Add -fno-merge-debug-strings
+	to dg-options.
+	Simplify DW_AT_producer scan.
+
 2018-01-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* gcc.dg/tree-ssa/ssa-dom-cse-2.c: XFAIL on !arm_neon arm targets.

gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c

@@ -3,9 +3,8 @@
    the build not reproducible.  Other skipped options could be tested here
    as well.  */
 /* { dg-do compile } */
-/* { dg-options "-O2 -gdwarf -dA -fdebug-prefix-map=a=b" } */
-/* { dg-final { scan-assembler "DW_AT_producer: \"GNU C" { target { { { ! *-*-solaris2* } || gas } && { { ! hppa*64*-*-* } && { ! powerpc-ibm-aix* } } } } } } */
-/* { dg-final { scan-assembler "\"GNU C\[^\\n\\r\]+ DW_AT_producer" { target { { *-*-solaris2* && { ! gas } } || { hppa*64*-*-* } } } } } */
+/* { dg-options "-O2 -gdwarf -dA -fno-merge-debug-strings -fdebug-prefix-map=a=b" } */
+/* { dg-final { scan-assembler "\"GNU C\[^\\n\\r\]+ DW_AT_producer" } } */
 /* { dg-final { scan-assembler-not "debug-prefix-map" } } */
 
 void func (void)