Fix shared library in i386; correctly spell macro in mips.h.

From-SVN: r2373

3 files changed, 128 insertions, 74 deletions

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6bdc971..dfd8fa6 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -568,18 +568,6 @@
 
   if (flag_pic && SYMBOLIC_CONST (operands[1]))
     emit_pic_move (operands, SImode);
-  else if (HALF_PIC_P()
-	   && GET_CODE (operands[0]) == REG
-           && GET_CODE (operands[1]) == SYMBOL_REF
-           && HALF_PIC_ADDRESS_P (operands[1]))
-    {
-      rtx ptr = HALF_PIC_PTR (operands[1]);
-      if (XSTR (ptr, 0) != XSTR (operands[1], 0))
-	{
-	  emit_move_insn (operands[0], gen_rtx (MEM, Pmode, ptr));
-	  DONE;
-	}
-    }
 }")
 
 ;; On i486, incl reg is faster than movl $1,reg.
@@ -3721,8 +3709,15 @@
   ""
   "
 {
+  rtx addr;
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
+
+  /* With half-pic, force the address into a register.  */
+  addr = XEXP (operands[0], 0);
+  if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
+    XEXP (operands[0], 0) = force_reg (Pmode, addr);
 }")
 
 (define_insn ""
@@ -3748,7 +3743,7 @@
 	 (match_operand:SI 1 "general_operand" "g"))
    (set (reg:SI 7) (plus:SI (reg:SI 7)
 			    (match_operand:SI 3 "immediate_operand" "i")))]
-  ""
+  "!HALF_PIC_P ()"
   "call %P0")
 
 (define_expand "call"
@@ -3758,8 +3753,15 @@
   ""
   "
 {
+  rtx addr;
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
+
+  /* With half-pic, force the address into a register.  */
+  addr = XEXP (operands[0], 0);
+  if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
+    XEXP (operands[0], 0) = force_reg (Pmode, addr);
 }")
 
 (define_insn ""
@@ -3783,7 +3785,7 @@
   [(call (mem:QI (match_operand:SI 0 "symbolic_operand" ""))
 	 (match_operand:SI 1 "general_operand" "g"))]
   ;; Operand 1 not used on the i386.
-  ""
+  "!HALF_PIC_P ()"
   "call %P0")
 
 ;; Call subroutine, returning value in operand 0
@@ -3799,8 +3801,15 @@
   ""
   "
 {
+  rtx addr;
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
+
+  /* With half-pic, force the address into a register.  */
+  addr = XEXP (operands[1], 0);
+  if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
+    XEXP (operands[1], 0) = force_reg (Pmode, addr);
 }")
 
 (define_insn ""
@@ -3830,7 +3839,7 @@
 	      (match_operand:SI 2 "general_operand" "g")))
    (set (reg:SI 7) (plus:SI (reg:SI 7)
 			    (match_operand:SI 4 "immediate_operand" "i")))]
-  ""
+  "!HALF_PIC_P ()"
   "call %P1")
 
 (define_expand "call_value"
@@ -3841,8 +3850,15 @@
   ""
   "
 {
+  rtx addr;
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
+
+  /* With half-pic, force the address into a register.  */
+  addr = XEXP (operands[1], 0);
+  if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
+    XEXP (operands[1], 0) = force_reg (Pmode, addr);
 }")
 
 (define_insn ""
@@ -3870,7 +3886,7 @@
 	(call (mem:QI (match_operand:SI 1 "symbolic_operand" ""))
 	      (match_operand:SI 2 "general_operand" "g")))]
   ;; Operand 2 not used on the i386.
-  ""
+  "!HALF_PIC_P ()"
   "call %P1")
 
 ;; Insn emitted into the body of a function to return from a function.
diff --git a/gcc/config/i386/osfrose.h b/gcc/config/i386/osfrose.h
index 6896ba2..f1dbc7f 100644
--- a/gcc/config/i386/osfrose.h
+++ b/gcc/config/i386/osfrose.h
@@ -37,9 +37,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define TARGET_DEBUG	(target_flags & MASK_HALF_PIC_DEBUG)
 #define HALF_PIC_DEBUG	TARGET_DEBUG
 
-#ifdef SUBTARGET_SWITCHES
-#undef SUBTARGET_SWITCHES
-#endif
+#undef	SUBTARGET_SWITCHES
 #define SUBTARGET_SWITCHES \
      { "half-pic",	 MASK_HALF_PIC},				\
      { "no-half-pic",	-MASK_HALF_PIC},				\
@@ -56,14 +54,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define IDENTIFIER_SUFFIX ""
 
 /* Change default predefines.  */
-#ifdef CPP_PREDEFINES
-#undef CPP_PREDEFINES
-#endif
+#undef	CPP_PREDEFINES
 #define CPP_PREDEFINES "-DOSF -DOSF1 -Dunix -Di386"
 
-#ifdef  CPP_SPEC
 #undef  CPP_SPEC
-#endif
 #define CPP_SPEC "\
 %{.S:	-D__LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
 %{.cc:	-D__LANGUAGE_C_PLUS_PLUS} \
@@ -72,11 +66,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 %{.m:	-D__LANGUAGE_OBJECTIVE_C} \
 %{!.S:	-D__LANGUAGE_C %{!ansi:-DLANGUAGE_C}}"
 
-#ifdef  CC1_SPEC
-#undef  CC1_SPEC
-#endif
-
 /* Turn on -mpic-extern by default.  */
+#undef  CC1_SPEC
 #define CC1_SPEC "\
 %{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \
 %{pic-none:   -mno-half-pic} \
@@ -85,32 +76,21 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 %{pic-calls:  -mhalf-pic} \
 %{!pic-*:     -mhalf-pic}"
 
-#ifdef ASM_SPEC
-#undef ASM_SPEC
-#endif
+#undef	ASM_SPEC
 #define ASM_SPEC       ""
 
-#ifdef  LINK_SPEC
 #undef  LINK_SPEC
-#endif
 #define LINK_SPEC      "%{v*: -v}                           \
 	               %{!noshrlib: %{pic-none: -noshrlib} %{!pic-none: -warn_nopic}} \
 	               %{nostdlib} %{noshrlib} %{glue}"
 
-#ifdef  LIB_SPEC
 #undef  LIB_SPEC
-#endif
-
 #define LIB_SPEC "-lc"
 
-#ifdef  LIBG_SPEC
 #undef  LIBG_SPEC
-#endif
-#define LIBG_SPEC      ""
+#define LIBG_SPEC ""
 
-#ifdef  STARTFILE_SPEC
 #undef  STARTFILE_SPEC
-#endif
 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
 
 #undef TARGET_VERSION_INTERNAL
@@ -121,14 +101,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define TARGET_VERSION_INTERNAL(STREAM) fputs (I386_VERSION, STREAM)
 #define TARGET_VERSION TARGET_VERSION_INTERNAL (stderr)
 
-#ifdef  MD_EXEC_PREFIX
 #undef  MD_EXEC_PREFIX
-#endif
 #define MD_EXEC_PREFIX		"/usr/ccs/gcc/"
 
-#ifdef  MD_STARTFILE_PREFIX
 #undef  MD_STARTFILE_PREFIX
-#endif
 #define MD_STARTFILE_PREFIX	"/usr/ccs/lib/"
 
 /* Tell final.c we don't need a label passed to mcount.  */
@@ -165,18 +141,26 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
    `high' expressions and `const' arithmetic expressions, in
    addition to `const_int' and `const_double' expressions.  */
 
-#ifdef CONSTANT_ADDRESS_P
-#undef CONSTANT_ADDRESS_P
-#endif
+#undef	CONSTANT_ADDRESS_P
 #define CONSTANT_ADDRESS_P(X)                                           \
   (CONSTANT_P (X) && (!HALF_PIC_P () || !HALF_PIC_ADDRESS_P (X)))
 
+/* Nonzero if the constant value X is a legitimate general operand.
+   It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE.  */
+
+#undef	LEGITIMATE_CONSTANT_P
+#define LEGITIMATE_CONSTANT_P(X)					\
+  (!HALF_PIC_P ()							\
+   || GET_CODE (X) == CONST_DOUBLE					\
+   || GET_CODE (X) == CONST_INT						\
+   || !HALF_PIC_ADDRESS_P (X))
+
 /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
    that is a valid memory address for an instruction.
    The MODE argument is the machine mode for the MEM expression
    that wants to use this address. */
 
-#undef GO_IF_LEGITIMATE_ADDRESS
+#undef	GO_IF_LEGITIMATE_ADDRESS
 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)				\
 {									\
   if (CONSTANT_P (X))							\
@@ -240,9 +224,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
    the definition of `GO_IF_LEGITIMATE_ADDRESS' or
    `PRINT_OPERAND_ADDRESS'. */
 
-#ifdef ENCODE_SECTION_INFO
-#undef ENCODE_SECTION_INFO
-#endif
+#undef	ENCODE_SECTION_INFO
 #define ENCODE_SECTION_INFO(DECL)					\
 do									\
   {									\
@@ -252,6 +234,39 @@ do									\
 while (0)
 
 
+/* Given a decl node or constant node, choose the section to output it in
+   and select that section.  */
+
+#undef	SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE, RTX)					\
+do									\
+  {									\
+    if (MODE == Pmode && HALF_PIC_P () && HALF_PIC_ADDRESS_P (RTX))	\
+      data_section ();							\
+    else								\
+      readonly_data_section ();						\
+  }									\
+while (0)
+
+#undef	SELECT_SECTION
+#define SELECT_SECTION(DECL,RELOC)					\
+{									\
+  if (TREE_CODE (DECL) == STRING_CST)					\
+    {									\
+      if (flag_writable_strings)					\
+	data_section ();						\
+      else								\
+	readonly_data_section ();					\
+    }									\
+  else if (TREE_CODE (DECL) != VAR_DECL)				\
+    readonly_data_section ();						\
+  else if (!TREE_READONLY (DECL))					\
+    data_section ();							\
+  else									\
+    readonly_data_section ();						\
+}
+
+
 /* A C statement (sans semicolon) to output to the stdio stream
    STREAM any text necessary for declaring the name NAME of an
    initialized variable which is being defined.  This macro must
@@ -262,9 +277,7 @@ while (0)
    If this macro is not defined, then the variable name is defined
    in the usual manner as a label (by means of `ASM_OUTPUT_LABEL').  */
 
-#ifdef ASM_DECLARE_OBJECT_NAME
-#undef ASM_DECLARE_OBJECT_NAME
-#endif
+#undef	ASM_DECLARE_OBJECT_NAME
 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)			\
 do									\
  {									\
@@ -314,28 +327,46 @@ while (0)
 
 /* This is how to output an assembler line defining a `double' constant.  */
 
-#ifdef ASM_OUTPUT_DOUBLE
-#undef ASM_OUTPUT_DOUBLE
+#undef	ASM_OUTPUT_DOUBLE
+
+#ifndef	CROSS_COMPILE
+#define	ASM_OUTPUT_DOUBLE(STREAM, VALUE)				\
+do									\
+  {									\
+    long value_long[2];							\
+    REAL_VALUE_TO_TARGET_DOUBLE (VALUE, value_long);			\
+									\
+    fprintf (STREAM, "\t.long\t0x%08lx\t\t# %.20g\n\t.long\t0x%08lx\n",	\
+	   value_long[0], VALUE, value_long[1]);			\
+  }									\
+while (0)
+
+#else
+#define	ASM_OUTPUT_DOUBLE(STREAM, VALUE)				\
+  fprintf (STREAM, "\t.double\t%.20g\n", VALUE)
 #endif
-#define ASM_OUTPUT_DOUBLE(STREAM,VALUE)					\
-{									\
-  union { double d; long l[2]; } u2;					\
-  u2.d = VALUE;								\
-  fprintf (STREAM, "\t.long\t0x%08lx\t\t# %.20g\n\t.long\t0x%08lx\n",	\
-	   u2.l[0], u2.d, u2.l[1]);					\
-}
 
 /* This is how to output an assembler line defining a `float' constant.  */
 
-#ifdef ASM_OUTPUT_FLOAT
-#undef ASM_OUTPUT_FLOAT
+#undef	ASM_OUTPUT_FLOAT
+
+#ifndef	CROSS_COMPILE
+#define	ASM_OUTPUT_FLOAT(STREAM, VALUE)					\
+do									\
+  {									\
+    long value_long;							\
+    REAL_VALUE_TO_TARGET_SINGLE (VALUE, value_long);			\
+									\
+    fprintf (STREAM, "\t.long\t0x%08lx\t\t# %.12g (float)\n",		\
+	   value_long, VALUE);						\
+  }									\
+while (0)
+
+#else
+#define	ASM_OUTPUT_FLOAT(STREAM, VALUE)					\
+  fprintf (STREAM, "\t.float\t%.12g\n", VALUE)
 #endif
-#define ASM_OUTPUT_FLOAT(STREAM,VALUE)					\
-{									\
-  union { float f; long l; } u2;					\
-  u2.f = VALUE;								\
-  fprintf (STREAM, "\t.long\t0x%08lx\t\t# %.12g\n", u2.l, u2.f);	\
-}
+
 
 /* Generate calls to memcpy, etc., not bcopy, etc. */
 #define TARGET_MEM_FUNCTIONS
@@ -344,6 +375,10 @@ while (0)
 
 /* Defines to be able to build libgcc.a with GCC.  */
 
+/* It might seem that these are not important, since gcc 2 will never
+   call libgcc for these functions.  But programs might be linked with
+   code compiled by gcc 1, and then these will be used.  */
+
 #define perform_udivsi3(a,b)						\
 {									\
   register int dx asm("dx");						\
@@ -391,15 +426,18 @@ while (0)
   auto unsigned short ostatus;						\
   auto unsigned short nstatus;						\
   auto int ret;								\
+  auto double tmp;							\
 									\
   &ostatus;			/* guarantee these land in memory */	\
   &nstatus;								\
   &ret;									\
+  &tmp;									\
 									\
   asm volatile ("fnstcw %0" : "=m" (ostatus));				\
   nstatus = ostatus | 0x0c00;						\
   asm volatile ("fldcw %0" : /* no outputs */ : "m" (nstatus));		\
-  asm volatile ("fldl %0" : /* no outputs */ : "m" (a));		\
+  tmp = a;								\
+  asm volatile ("fldl %0" : /* no outputs */ : "m" (tmp));		\
   asm volatile ("fistpl %0" : "=m" (ret));				\
   asm volatile ("fldcw %0" : /* no outputs */ : "m" (ostatus));		\
 									\
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index f68d6a6..7d3f106 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -3341,7 +3341,7 @@ rdata_section ()							\
 /* Given a decl node or constant node, choose the section to output it in
    and select that section.  */
 
-#define SELECT_SECTION_MODE(MODE,RTX)					\
+#define SELECT_RTX_SECTION(MODE,RTX)					\
 {									\
   if ((GET_MODE_SIZE(MODE) / BITS_PER_UNIT) <= mips_section_threshold	\
       && mips_section_threshold > 0)					\