real.h: Don't define REAL_INFINITY or REAL_IS_NOT_DOUBLE.

	* real.h: Don't define REAL_INFINITY or REAL_IS_NOT_DOUBLE.
	Always make REAL_VALUE_TYPE a struct containing an array of
	HOST_WIDE_INT, not a double.  Tidy up the code deciding how
	big it is.  Don't declare or use union real_extract.

	* emit-rtl.c (init_emit_once), varasm.c (immed_real_const_1,
	decode_rtx_const, output_constant_pool), config/a29k/a29k.c
	(print_operand), config/arm/arm.c (output_move_double),
	config/arm/arm.md (consttable_4, consttable_8),
	config/romp/romp.c (output_fpops), config/s390/s390.h
	(ASM_OUTPUT_SPECIAL_POOL_ENTRY), config/xtensa/xtensa.c
	(xtensa_output_literal): Don't use union real_extract.

	* config/dsp16xx/dsp16xx.c (print_operand), config/i860/i860.c
	(sfmode_constant_to_ulong), config/ns32k/merlin.h
	(PRINT_OPERAND), config/ns32k/ns32k.c (print_operand),
	config/pdp11/pdp11.h (PRINT_OPERAND), config/we32k/we32k.h
	(PRINT_OPERAND): Don't use local version of union
	real_extract.

	* config/convex/convex.c (check_float_value), config/vax/vax.c
	(vax_float_literal), config/m88k/m88k.md (divdf3),
	config/dsp16xx/dsp16xx.md (fixuns_trunchfhi2),
	config/pdp11/pdp11.c (output_move_quad): Don't do host
	arithmetic on target floating point quantities.

	* config/a29k/a29k.md, config/dsp16xx/dsp16xx.c
	(output_dsp16xx_float_const): Don't test HOST_FLOAT_FORMAT.

	* fold-const.c (fold), simplify-rtx.c (simplify_binary_real):
	Use MODE_HAS_INFINITIES rather than #ifdef REAL_INFINITY.

	* real.c (earith): Test INFINITY rather than REAL_INFINITY;
	NANS implies INFINITY, so can drop #ifdef NANS inside #ifndef
	INFINITY.
	* print-rtl.c (print_rtx): Disable code which needs
	floating-point emulator.
	* libgcc2.c: Include float.h and use DBL_MANT_DIG,
	FLT_MANT_DIG, to define DF_SIZE and SF_SIZE, rather than
	depending on HOST_FLOAT_FORMAT to be defined properly.

	* ch/grant.c, cp/error.c: Always use REAL_VALUE_TO_DECIMAL;
	don't test REAL_IS_NOT_DOUBLE.

	* config/1750a/1750a.c (get_double, float_label): Delete.
	(print_operand): Delete huge commented-out chunk.  Use
	REAL_VALUE_TO_DECIMAL.
	* config/1750a/1750a-protos.h: Delete prototypes of deleted
	functions.
	* config/convex/convex.h: Always set TARGET_FLOAT_FORMAT to
	IEEE_FLOAT_FORMAT.
	* config/i370/i370.h (PRINT_OPERAND [TARGET_HLASM version]):
	Use REAL_VALUE_TO_DECIMAL as ELF version does.
	* config/m88k/m88k.c (real_power_of_2_operand,
	legitimize_operand): Take the REAL_VALUE_TYPE and/or union
	real_extract out of the union; run the input through
	REAL_VALUE_TO_TARGET_DOUBLE, then plug the pair of longwords
	from that into the union.
	* config/pdp11/pdp11.c (output_move_double): Rearrange
	parentheses to make automatic indenter happy.

	* doc/tm.texi (Cross-compilation): Rename node to "Floating
	Point" and rewrite to describe current situation.  Also adjust
	documentation of REAL_VALUE_TO_TARGET_SINGLE and friends to
	match code.
	* doc/rtl.texi: Adjust cross reference.

From-SVN: r51210

2 files changed, 9 insertions, 14 deletions

diff --git a/gcc/config/dsp16xx/dsp16xx.c b/gcc/config/dsp16xx/dsp16xx.c
index 674a3f0..7f5cc0b 100644
--- a/gcc/config/dsp16xx/dsp16xx.c
+++ b/gcc/config/dsp16xx/dsp16xx.c
@@ -1870,16 +1870,15 @@ print_operand(file, op, letter)
 	  fprintf (file, HOST_WIDE_INT_PRINT_HEX, (val >> 16) & 0xffff);
         else
            output_addr_const(file, op);
-    }
+      }
     else if (code == CONST_DOUBLE && GET_MODE(op) != DImode)
-    {
-	  union { double d; int i[2]; } u;
-	  union { float f; int i; } u1;
-	  u.i[0] = CONST_DOUBLE_LOW (op);
-	  u.i[1] = CONST_DOUBLE_HIGH (op);
-	  u1.f = u.d;
-          fprintf (file, "0x%x", u1.i);
-    }
+      {
+	long l;
+	REAL_VALUE_TYPE r;
+	REAL_VALUE_FROM_CONST_DOUBLE (r, op);
+	REAL_VALUE_TO_TARGET_SINGLE (r, l);
+	fprintf (file, "0x%x", l);
+      }
     else if (code == CONST)
       {
 	rtx addr = XEXP (op, 0);
@@ -1977,7 +1976,6 @@ output_dsp16xx_float_const (operands)
 {
   rtx src = operands[1];
   
-#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT
   REAL_VALUE_TYPE d;
   long value;
   
@@ -1986,9 +1984,6 @@ output_dsp16xx_float_const (operands)
   
   operands[1] = GEN_INT (value);
   output_asm_insn ("%u0=%U1\n\t%w0=%H1", operands);
-#else
-  fatal_error ("inline float constants not supported on this host");
-#endif
 }
 
 static int
diff --git a/gcc/config/dsp16xx/dsp16xx.md b/gcc/config/dsp16xx/dsp16xx.md
index 7cea24a..31247ba 100644
--- a/gcc/config/dsp16xx/dsp16xx.md
+++ b/gcc/config/dsp16xx/dsp16xx.md
@@ -1935,7 +1935,7 @@
   rtx reg3 = gen_reg_rtx (HImode);
   rtx label1 = gen_label_rtx ();
   rtx label2 = gen_label_rtx ();
-  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (1.0, 31);
+  REAL_VALUE_TYPE offset = REAL_VALUE_LDEXP (dconst1, 31);
 
   if (reg1)			/* turn off complaints about unreached code */
     {