config.host: Match little-endian powerpc-linux.

libgcc/
	* config.host: Match little-endian powerpc-linux.
gcc/
	* config.gcc: Support little-endian powerpc-linux targets.
	* config/rs6000/linux.h (LINK_OS_LINUX_EMUL): Define.
	(LINK_OS_LINUX_SPEC): Define.
	* config/rs6000/linuxspe.h (TARGET_DEFAULT):
	Preserve MASK_LITTLE_ENDIAN.
	* config/rs6000/default64.h (TARGET_DEFAULT): Likewise.
	* config/rs6000/linuxaltivec.h (TARGET_DEFAULT): Likewise.
	* config/rs6000/linux64.h (OPTION_LITTLE_ENDIAN): Don't zero.
	(LINK_OS_LINUX_EMUL32, LINK_OS_LINUX_EMUL64): Define.
	(LINK_OS_LINUX_SPEC32, LINK_OS_LINUX_SPEC64): Use above.
	* config/rs6000/rs6000.c (output_toc): Don't use .tc for TARGET_ELF.
	Correct fp word order for little-endian.  Don't shift toc entries
	smaller than a word for little-endian.
	* config/rs6000/rs6000.md (bswaphi2, bswapsi2 split): Comment.
	(bswapdi2 splits): Correct low-part subreg for little-endian.
	Remove wrong BYTES_BIG_ENDIAN tests, and rename vars to remove
	low/high where such is correct only for be.
	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Allow
	little-endian for -mcall-aixdesc.

From-SVN: r198273

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7b3ff0b3f495dca5636e78ae5aefd5a29576c59b..fb7eb523624a0dee64b5d745de014ea7a03c63b9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,25 @@
+2013-04-25  Alan Modra  <amodra@gmail.com>
+
+       * config.gcc: Support little-endian powerpc-linux targets.
+       * config/rs6000/linux.h (LINK_OS_LINUX_EMUL): Define.
+       (LINK_OS_LINUX_SPEC): Define.
+       * config/rs6000/linuxspe.h (TARGET_DEFAULT):
+       Preserve MASK_LITTLE_ENDIAN.
+       * config/rs6000/default64.h (TARGET_DEFAULT): Likewise.
+       * config/rs6000/linuxaltivec.h (TARGET_DEFAULT): Likewise.
+       * config/rs6000/linux64.h (OPTION_LITTLE_ENDIAN): Don't zero.
+       (LINK_OS_LINUX_EMUL32, LINK_OS_LINUX_EMUL64): Define.
+       (LINK_OS_LINUX_SPEC32, LINK_OS_LINUX_SPEC64): Use above.
+       * config/rs6000/rs6000.c (output_toc): Don't use .tc for TARGET_ELF.
+       Correct fp word order for little-endian.  Don't shift toc entries
+       smaller than a word for little-endian.
+       * config/rs6000/rs6000.md (bswaphi2, bswapsi2 split): Comment.
+       (bswapdi2 splits): Correct low-part subreg for little-endian.
+       Remove wrong BYTES_BIG_ENDIAN tests, and rename vars to remove
+       low/high where such is correct only for be.
+       * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Allow
+       little-endian for -mcall-aixdesc.
+
 2013-04-25  Alan Modra  <amodra@gmail.com>
 
        * config/rs6000/rs6000.c (rs6000_secondary_reload_inner): Use

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 5c5ddcc44ff48ed075e63ee5debfdc9e274b5103..5a205df353c5323b9c635a53e5e6787bc95d96b0 100644 (file)
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2086,20 +2086,24 @@ powerpc-*-rtems*)
        extra_options="${extra_options} rs6000/sysv4.opt"
        tmake_file="rs6000/t-fprules rs6000/t-rtems t-rtems rs6000/t-ppccomm"
        ;;
-powerpc-*-linux* | powerpc64-*-linux*)
+powerpc*-*-linux*)
        tm_file="${tm_file} dbxelf.h elfos.h freebsd-spec.h rs6000/sysv4.h"
        extra_options="${extra_options} rs6000/sysv4.opt"
        tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
+       case ${target} in
+           powerpc*le-*-*)
+           tm_file="${tm_file} rs6000/sysv4le.h" ;;
+       esac
        maybe_biarch=yes
        case ${target} in
-           powerpc64-*-linux*spe* | powerpc64-*-linux*paired*)
+           powerpc64*-*-linux*spe* | powerpc64*-*-linux*paired*)
                echo "*** Configuration ${target} not supported" 1>&2
                exit 1
                ;;
-           powerpc-*-linux*spe* | powerpc-*-linux*paired*)
+           powerpc*-*-linux*spe* | powerpc*-*-linux*paired*)
                maybe_biarch=
                ;;
-           powerpc64-*-linux*)
+           powerpc64*-*-linux*)
                test x$with_cpu != x || cpu_is_64bit=yes
                maybe_biarch=always
                ;;

diff --git a/gcc/config/rs6000/default64.h b/gcc/config/rs6000/default64.h
index 5a6192d186c7c11dfa6822be0fc645d1311a814a..9ecd25c2723537f60d27fa7b26a8bd193fd80be0 100644 (file)
--- a/gcc/config/rs6000/default64.h
+++ b/gcc/config/rs6000/default64.h
@@ -18,5 +18,10 @@ You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
+#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_64BIT | MASK_LITTLE_ENDIAN)
+#else
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT (MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_64BIT)
+#endif

diff --git a/gcc/config/rs6000/linux.h b/gcc/config/rs6000/linux.h
index 8ec3548c21abedd6dc1d22c9aa3ddee88f6e2b23..5329f01874b596c4d214f1640b2d2151c98f01b5 100644 (file)
--- a/gcc/config/rs6000/linux.h
+++ b/gcc/config/rs6000/linux.h
@@ -79,6 +79,17 @@
 #undef LINK_OS_DEFAULT_SPEC
 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
 
+#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#define LINK_OS_LINUX_EMUL "%{!mbig: %{!mbig-endian: -m elf32lppclinux}}%{mbig|mbig-endian: -m elf32ppclinux}"
+#else
+#define LINK_OS_LINUX_EMUL "%{!mlittle: %{!mlittle-endian: -m elf32ppclinux}}%{mlittle|mlittle-endian: -m elf32lppclinux}"
+#endif
+
+#undef LINK_OS_LINUX_SPEC
+#define LINK_OS_LINUX_SPEC LINK_OS_LINUX_EMUL " %{!shared: %{!static: \
+  %{rdynamic:-export-dynamic} \
+  -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 

diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
index dc6f67fcc11af9c645f7dca4e8ba109d6491fc55..15336dd7d236f959a920d0826f74e9f2944f88c0 100644 (file)
--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
@@ -212,10 +212,6 @@ extern int dot_symbols;
 
 #ifndef RS6000_BI_ARCH
 
-/* 64-bit PowerPC Linux is always big-endian.  */
-#undef OPTION_LITTLE_ENDIAN
-#define OPTION_LITTLE_ENDIAN   0
-
 /* 64-bit PowerPC Linux always has a TOC.  */
 #undef  TARGET_TOC
 #define        TARGET_TOC              1
@@ -376,12 +372,19 @@ extern int dot_symbols;
 #define GNU_USER_DYNAMIC_LINKER64 \
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
 
+#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#define LINK_OS_LINUX_EMUL32 "%{!mbig: %{!mbig-endian: -m elf32lppclinux}}%{mbig|mbig-endian: -m elf32ppclinux}"
+#define LINK_OS_LINUX_EMUL64 "%{!mbig: %{!mbig-endian: -m elf64lppc}}%{mbig|mbig-endian: -m elf64ppc}"
+#else
+#define LINK_OS_LINUX_EMUL32 "%{!mlittle: %{!mlittle-endian: -m elf32ppclinux}}%{mlittle|mlittle-endian: -m elf32lppclinux}"
+#define LINK_OS_LINUX_EMUL64 "%{!mlittle: %{!mlittle-endian: -m elf64ppc}}%{mlittle|mlittle-endian: -m elf64lppc}"
+#endif
 
-#define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
   %{rdynamic:-export-dynamic} \
   -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}"
 
-#define LINK_OS_LINUX_SPEC64 "-m elf64ppc %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
   %{rdynamic:-export-dynamic} \
   -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}"
 

diff --git a/gcc/config/rs6000/linuxaltivec.h b/gcc/config/rs6000/linuxaltivec.h
index 632f58d5bafdd01dc38085fc4d5ae279c7a37e49..f778dd8f737962952760e318e62b1615ff1e60cd 100644 (file)
--- a/gcc/config/rs6000/linuxaltivec.h
+++ b/gcc/config/rs6000/linuxaltivec.h
@@ -20,8 +20,13 @@
    <http://www.gnu.org/licenses/>.  */
 
 /* Override rs6000.h and sysv4.h definition.  */
+#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#undef TARGET_DEFAULT
+#define        TARGET_DEFAULT (MASK_ALTIVEC | MASK_LITTLE_ENDIAN)
+#else
 #undef TARGET_DEFAULT
 #define        TARGET_DEFAULT MASK_ALTIVEC
+#endif
 
 #undef  SUBSUBTARGET_OVERRIDE_OPTIONS
 #define SUBSUBTARGET_OVERRIDE_OPTIONS rs6000_altivec_abi = 1

diff --git a/gcc/config/rs6000/linuxspe.h b/gcc/config/rs6000/linuxspe.h
index 99b8c73716df3aa4b9d82cb2a7a08e60676c1fd4..54b0d1159503738a141d0ffdf33df99a59f19bc9 100644 (file)
--- a/gcc/config/rs6000/linuxspe.h
+++ b/gcc/config/rs6000/linuxspe.h
@@ -20,8 +20,13 @@
    <http://www.gnu.org/licenses/>.  */
 
 /* Override rs6000.h and sysv4.h definition.  */
+#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_STRICT_ALIGN | MASK_LITTLE_ENDIAN)
+#else
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT MASK_STRICT_ALIGN
+#endif
 
 #undef  ASM_DEFAULT_SPEC
 #define        ASM_DEFAULT_SPEC "-mppc -mspe -me500"

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 6000bedff07a3ddff9fc90313af0ac29f773c428..7c32975448244fe23ea26ca98cf6cabd1d020585 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -22408,20 +22408,22 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
 
       if (TARGET_64BIT)
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs (DOUBLE_INT_ASM_OP, file);
          else
            fprintf (file, "\t.tc FT_%lx_%lx_%lx_%lx[TC],",
                     k[0] & 0xffffffff, k[1] & 0xffffffff,
                     k[2] & 0xffffffff, k[3] & 0xffffffff);
          fprintf (file, "0x%lx%08lx,0x%lx%08lx\n",
-                  k[0] & 0xffffffff, k[1] & 0xffffffff,
-                  k[2] & 0xffffffff, k[3] & 0xffffffff);
+                  k[WORDS_BIG_ENDIAN ? 0 : 1] & 0xffffffff,
+                  k[WORDS_BIG_ENDIAN ? 1 : 0] & 0xffffffff,
+                  k[WORDS_BIG_ENDIAN ? 2 : 3] & 0xffffffff,
+                  k[WORDS_BIG_ENDIAN ? 3 : 2] & 0xffffffff);
          return;
        }
       else
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs ("\t.long ", file);
          else
            fprintf (file, "\t.tc FT_%lx_%lx_%lx_%lx[TC],",
@@ -22448,18 +22450,19 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
 
       if (TARGET_64BIT)
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs (DOUBLE_INT_ASM_OP, file);
          else
            fprintf (file, "\t.tc FD_%lx_%lx[TC],",
                     k[0] & 0xffffffff, k[1] & 0xffffffff);
          fprintf (file, "0x%lx%08lx\n",
-                  k[0] & 0xffffffff, k[1] & 0xffffffff);
+                  k[WORDS_BIG_ENDIAN ? 0 : 1] & 0xffffffff,
+                  k[WORDS_BIG_ENDIAN ? 1 : 0] & 0xffffffff);
          return;
        }
       else
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs ("\t.long ", file);
          else
            fprintf (file, "\t.tc FD_%lx_%lx[TC],",
@@ -22483,7 +22486,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
 
       if (TARGET_64BIT)
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs (DOUBLE_INT_ASM_OP, file);
          else
            fprintf (file, "\t.tc FS_%lx[TC],", l & 0xffffffff);
@@ -22492,7 +22495,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
        }
       else
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs ("\t.long ", file);
          else
            fprintf (file, "\t.tc FS_%lx[TC],", l & 0xffffffff);
@@ -22524,9 +22527,8 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
        }
 #endif
 
-      /* TOC entries are always Pmode-sized, but since this
-        is a bigendian machine then if we're putting smaller
-        integer constants in the TOC we have to pad them.
+      /* TOC entries are always Pmode-sized, so when big-endian
+        smaller integer constants in the TOC need to be padded.
         (This is still a win over putting the constants in
         a separate constant pool, because then we'd have
         to have both a TOC entry _and_ the actual constant.)
@@ -22537,7 +22539,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
       /* It would be easy to make this work, but it doesn't now.  */
       gcc_assert (!TARGET_64BIT || POINTER_SIZE >= GET_MODE_BITSIZE (mode));
 
-      if (POINTER_SIZE > GET_MODE_BITSIZE (mode))
+      if (WORDS_BIG_ENDIAN && POINTER_SIZE > GET_MODE_BITSIZE (mode))
        {
 #if HOST_BITS_PER_WIDE_INT == 32
          lshift_double (low, high, POINTER_SIZE - GET_MODE_BITSIZE (mode),
@@ -22552,7 +22554,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
 
       if (TARGET_64BIT)
        {
-         if (TARGET_MINIMAL_TOC)
+         if (TARGET_ELF || TARGET_MINIMAL_TOC)
            fputs (DOUBLE_INT_ASM_OP, file);
          else
            fprintf (file, "\t.tc ID_%lx_%lx[TC],",
@@ -22565,7 +22567,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
        {
          if (POINTER_SIZE < GET_MODE_BITSIZE (mode))
            {
-             if (TARGET_MINIMAL_TOC)
+             if (TARGET_ELF || TARGET_MINIMAL_TOC)
                fputs ("\t.long ", file);
              else
                fprintf (file, "\t.tc ID_%lx_%lx[TC],",
@@ -22575,7 +22577,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
            }
          else
            {
-             if (TARGET_MINIMAL_TOC)
+             if (TARGET_ELF || TARGET_MINIMAL_TOC)
                fputs ("\t.long ", file);
              else
                fprintf (file, "\t.tc IS_%lx[TC],", (long) low & 0xffffffff);
@@ -22613,7 +22615,7 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
       gcc_unreachable ();
     }
 
-  if (TARGET_MINIMAL_TOC)
+  if (TARGET_ELF || TARGET_MINIMAL_TOC)
     fputs (TARGET_32BIT ? "\t.long " : DOUBLE_INT_ASM_OP, file);
   else
     {

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 0a5d32728a1a171f182d6616eb81b55e5c2070ad..14bd9bfb4325c5a28d990a41d8e6ad5ea61a0581 100644 (file)
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -2090,6 +2090,8 @@
   [(set_attr "length" "4,4,12")
    (set_attr "type" "load,store,*")])
 
+;; We are always BITS_BIG_ENDIAN, so the (const_int 16) below is
+;; correct for -mlittle as well as -mbig.
 (define_split
   [(set (match_operand:HI 0 "gpc_reg_operand" "")
        (bswap:HI (match_operand:HI 1 "gpc_reg_operand" "")))
@@ -2143,6 +2145,8 @@
   [(set_attr "length" "4,4,12")
    (set_attr "type" "load,store,*")])
 
+;; We are always BITS_BIG_ENDIAN, so the bit positions below in
+;; zero_extract insns do not change for -mlittle.
 (define_split
   [(set (match_operand:SI 0 "gpc_reg_operand" "")
        (bswap:SI (match_operand:SI 1 "gpc_reg_operand" "")))]
@@ -2225,8 +2229,10 @@
   rtx op2    = operands[2];
   rtx op3    = operands[3];
   rtx op4    = operands[4];
-  rtx op3_32 = simplify_gen_subreg (SImode, op3, DImode, 4);
-  rtx op4_32 = simplify_gen_subreg (SImode, op4, DImode, 4);
+  rtx op3_32 = simplify_gen_subreg (SImode, op3, DImode,
+                                   BYTES_BIG_ENDIAN ? 4 : 0);
+  rtx op4_32 = simplify_gen_subreg (SImode, op4, DImode,
+                                   BYTES_BIG_ENDIAN ? 4 : 0);
   rtx addr1;
   rtx addr2;
   rtx word_high;
@@ -2286,8 +2292,10 @@
   rtx src    = operands[1];
   rtx op2    = operands[2];
   rtx op3    = operands[3];
-  rtx src_si = simplify_gen_subreg (SImode, src, DImode, 4);
-  rtx op3_si = simplify_gen_subreg (SImode, op3, DImode, 4);
+  rtx src_si = simplify_gen_subreg (SImode, src, DImode,
+                                   BYTES_BIG_ENDIAN ? 4 : 0);
+  rtx op3_si = simplify_gen_subreg (SImode, op3, DImode,
+                                   BYTES_BIG_ENDIAN ? 4 : 0);
   rtx addr1;
   rtx addr2;
   rtx word_high;
@@ -2347,10 +2355,11 @@
   rtx src     = operands[1];
   rtx op2     = operands[2];
   rtx op3     = operands[3];
-  rtx dest_si = simplify_gen_subreg (SImode, dest, DImode, 4);
-  rtx src_si  = simplify_gen_subreg (SImode, src, DImode, 4);
-  rtx op2_si  = simplify_gen_subreg (SImode, op2, DImode, 4);
-  rtx op3_si  = simplify_gen_subreg (SImode, op3, DImode, 4);
+  int lo_off  = BYTES_BIG_ENDIAN ? 4 : 0;
+  rtx dest_si = simplify_gen_subreg (SImode, dest, DImode, lo_off);
+  rtx src_si  = simplify_gen_subreg (SImode, src, DImode, lo_off);
+  rtx op2_si  = simplify_gen_subreg (SImode, op2, DImode, lo_off);
+  rtx op3_si  = simplify_gen_subreg (SImode, op3, DImode, lo_off);
 
   emit_insn (gen_lshrdi3 (op2, src, GEN_INT (32)));
   emit_insn (gen_bswapsi2 (dest_si, src_si));
@@ -2375,15 +2384,15 @@
   [(const_int 0)]
   "
 {
-  rtx dest   = operands[0];
-  rtx src    = operands[1];
-  rtx op2    = operands[2];
-  rtx dest_hi = simplify_gen_subreg (SImode, dest, DImode, 0);
-  rtx dest_lo = simplify_gen_subreg (SImode, dest, DImode, 4);
+  rtx dest  = operands[0];
+  rtx src   = operands[1];
+  rtx op2   = operands[2];
+  rtx dest1 = simplify_gen_subreg (SImode, dest, DImode, 0);
+  rtx dest2 = simplify_gen_subreg (SImode, dest, DImode, 4);
   rtx addr1;
   rtx addr2;
-  rtx word_high;
-  rtx word_low;
+  rtx word1;
+  rtx word2;
 
   addr1 = XEXP (src, 0);
   if (GET_CODE (addr1) == PLUS)
@@ -2408,19 +2417,11 @@
       addr2 = gen_rtx_PLUS (SImode, op2, addr1);
     }
 
-  if (BYTES_BIG_ENDIAN)
-    {
-      word_high = change_address (src, SImode, addr1);
-      word_low  = change_address (src, SImode, addr2);
-    }
-  else
-    {
-      word_high = change_address (src, SImode, addr2);
-      word_low  = change_address (src, SImode, addr1);
-    }
+  word1 = change_address (src, SImode, addr1);
+  word2 = change_address (src, SImode, addr2);
 
-  emit_insn (gen_bswapsi2 (dest_hi, word_low));
-  emit_insn (gen_bswapsi2 (dest_lo, word_high));
+  emit_insn (gen_bswapsi2 (dest2, word1));
+  emit_insn (gen_bswapsi2 (dest1, word2));
 }")
 
 (define_split
@@ -2431,15 +2432,15 @@
   [(const_int 0)]
   "
 {
-  rtx dest     = operands[0];
-  rtx src      = operands[1];
-  rtx op2      = operands[2];
-  rtx src_high = simplify_gen_subreg (SImode, src, DImode, 0);
-  rtx src_low  = simplify_gen_subreg (SImode, src, DImode, 4);
+  rtx dest = operands[0];
+  rtx src  = operands[1];
+  rtx op2  = operands[2];
+  rtx src1 = simplify_gen_subreg (SImode, src, DImode, 0);
+  rtx src2 = simplify_gen_subreg (SImode, src, DImode, 4);
   rtx addr1;
   rtx addr2;
-  rtx word_high;
-  rtx word_low;
+  rtx word1;
+  rtx word2;
 
   addr1 = XEXP (dest, 0);
   if (GET_CODE (addr1) == PLUS)
@@ -2464,19 +2465,11 @@
       addr2 = gen_rtx_PLUS (SImode, op2, addr1);
     }
 
-  if (BYTES_BIG_ENDIAN)
-    {
-      word_high = change_address (dest, SImode, addr1);
-      word_low  = change_address (dest, SImode, addr2);
-    }
-  else
-    {
-      word_high = change_address (dest, SImode, addr2);
-      word_low  = change_address (dest, SImode, addr1);
-    }
+  word1 = change_address (dest, SImode, addr1);
+  word2 = change_address (dest, SImode, addr2);
 
-  emit_insn (gen_bswapsi2 (word_high, src_low));
-  emit_insn (gen_bswapsi2 (word_low, src_high));
+  emit_insn (gen_bswapsi2 (word2, src1));
+  emit_insn (gen_bswapsi2 (word1, src2));
 }")
 
 (define_split
@@ -2487,15 +2480,15 @@
   [(const_int 0)]
   "
 {
-  rtx dest      = operands[0];
-  rtx src       = operands[1];
-  rtx src_high  = simplify_gen_subreg (SImode, src, DImode, 0);
-  rtx src_low   = simplify_gen_subreg (SImode, src, DImode, 4);
-  rtx dest_high = simplify_gen_subreg (SImode, dest, DImode, 0);
-  rtx dest_low  = simplify_gen_subreg (SImode, dest, DImode, 4);
+  rtx dest  = operands[0];
+  rtx src   = operands[1];
+  rtx src1  = simplify_gen_subreg (SImode, src, DImode, 0);
+  rtx src2  = simplify_gen_subreg (SImode, src, DImode, 4);
+  rtx dest1 = simplify_gen_subreg (SImode, dest, DImode, 0);
+  rtx dest2 = simplify_gen_subreg (SImode, dest, DImode, 4);
 
-  emit_insn (gen_bswapsi2 (dest_high, src_low));
-  emit_insn (gen_bswapsi2 (dest_low, src_high));
+  emit_insn (gen_bswapsi2 (dest1, src2));
+  emit_insn (gen_bswapsi2 (dest2, src1));
 }")
 
 (define_insn "mulsi3"

diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
index 54bdb210c270f5991be72a11de68a0898582e8f8..e54c253a4c7255b876c66299d4f2b57dd03268df 100644 (file)
--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
@@ -187,12 +187,6 @@ do {                                                                       \
             rs6000_abi_name);                                          \
     }                                                                  \
                                                                        \
-  if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN)           \
-    {                                                                  \
-      rs6000_isa_flags &= ~OPTION_MASK_LITTLE_ENDIAN;                  \
-      error ("-mcall-aixdesc must be big endian");                     \
-    }                                                                  \
-                                                                       \
   if (TARGET_SECURE_PLT != secure_plt)                                 \
     {                                                                  \
       error ("-msecure-plt not supported by your assembler");          \

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index dbbd9027a6266b7bfa0993272a00af8622766d67..d6a3c83e2f685a415c7280a3c0b208e1763bc60a 100644 (file)
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2013-04-25  Alan Modra  <amodra@gmail.com>
+
+       * config.host: Match little-endian powerpc-linux.
+
 2013-04-19  Yufeng Zhang  <yufeng.zhang@arm.com>
 
        * config/aarch64/sfp-machine.h (_FP_W_TYPE): Change to define

diff --git a/libgcc/config.host b/libgcc/config.host
index 4f1a5bdac02dc1e57fd24b06fe9a67e523dc195e..5e0f5ce8497e142f5df5c881c0e02f198308efe6 100644 (file)
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -882,7 +882,7 @@ powerpc-*-rtems*)
        tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
        extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
        ;;
-powerpc-*-linux* | powerpc64-*-linux*)
+powerpc*-*-linux*)
        tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-linux t-softfp-sfdf t-softfp-excl t-dfprules rs6000/t-ppc64-fp t-softfp t-slibgcc-libgcc"
        extra_parts="$extra_parts ecrti.o ecrtn.o ncrti.o ncrtn.o"
        md_unwind_header=rs6000/linux-unwind.h