* optabs.c (init_floating_libfuncs): Handle decimal float modes.

	(init_optabs): Handle libfuncs for decimal float.
	* genopinit.c (gen_insn): Handle MODE_DECIMAL_FLOAT.
	* stor-layout.c (int_mode_for_mode): Likewise.
	* simplify-rtx.c (simplify_immed_subreg): Likewise.
	(simplify_unary_operation_1): Skip optimisations for decimal float
	modes.
	* varasm.c (output_constant_pool_2): Handle MODE_DECIMAL_FLOAT.
	* emit-rtl.c (gen_const_vector): Add assertion check.
	(init_emit_once): Populate const_tiny_rtx with constants in each
	decimal float mode.
	* expmed.c (extract_high_half, expand_mult_highpart_optab,
	expand_mult_highpart): Assert that mode is not a scalar float
	mode.
	* expr.c (convert_move): Handle conversion between decimal and
	binary floats of the same size.
	* convert.c (convert_to_real): Consider decimal float types when
	folding.
	* dwarf2out.c (base_type_die): Use DW_ATE_decimal_float to
	describe decimal floating point types.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108762 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 3 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index df86a57ee18..322db4ff273 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -410,10 +410,15 @@ convert_move (rtx to, rtx from, int unsignedp)
       rtx value, insns;
       convert_optab tab;
 
-      gcc_assert (GET_MODE_PRECISION (from_mode)
-		  != GET_MODE_PRECISION (to_mode));
+      gcc_assert ((GET_MODE_PRECISION (from_mode)
+		   != GET_MODE_PRECISION (to_mode))
+		  || (DECIMAL_FLOAT_MODE_P (from_mode)
+		      != DECIMAL_FLOAT_MODE_P (to_mode)));
       
-      if (GET_MODE_PRECISION (from_mode) < GET_MODE_PRECISION (to_mode))
+      if (GET_MODE_PRECISION (from_mode) == GET_MODE_PRECISION (to_mode))
+	/* Conversion between decimal float and binary float, same size.  */
+	tab = DECIMAL_FLOAT_MODE_P (from_mode) ? trunc_optab : sext_optab;
+      else if (GET_MODE_PRECISION (from_mode) < GET_MODE_PRECISION (to_mode))
 	tab = sext_optab;
       else
 	tab = trunc_optab;