gcc/

	* optabs.c (expand_float): Convert unsigned integer as signed only
	if it provides sufficient accuracy; add mode argument to real_2expN.
	(expand_fix): Fix comment typos; extend binary float into mode
	wider than destination for converion to unsigned integer; add mode
	argument to real_2expN.
	* real.c (real_2expN): Add mode argument to special-case decimal
	float values.
	* real.h (real_2expN): Ditto.
	* fixed-value.c (check_real_for_fixed_mode): Add mode argument to
	real_2expN.
	(fixed_from_string): Ditto.
	(fixed_to_decimal): Ditto.
	(fixed_convert_from_real): Ditto.
	(real_convert_from_fixed): Ditto.
	* config/rs6000/rs6000.md (FP): Include DD and TD modes.
	* config/rs6000/dfp.md (extendddtd2, adddd3, addtd3, subdd3, subtd3,
	muldd3, multd3, divdd3, divtd3, cmpdd_internal1, cmptd_internal1,
	floatditd2, ftruncdd2, fixdddi2, ftrunctd2, fixddi2): New.

gcc/testsuite/
	* gcc.target/powerpc/dfp-dd.c: New test.
	* gcc.target/powerpc/dfp-td.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128156 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 1 deletions

diff --git a/gcc/real.c b/gcc/real.c
index 9686309cf3d..8e623f6b9ad 100644
--- a/gcc/real.c
+++ b/gcc/real.c
@@ -2304,7 +2304,7 @@ real_maxval (REAL_VALUE_TYPE *r, int sign, enum machine_mode mode)
 /* Fills R with 2**N.  */
 
 void
-real_2expN (REAL_VALUE_TYPE *r, int n)
+real_2expN (REAL_VALUE_TYPE *r, int n, enum machine_mode fmode)
 {
   memset (r, 0, sizeof (*r));
 
@@ -2319,6 +2319,9 @@ real_2expN (REAL_VALUE_TYPE *r, int n)
       SET_REAL_EXP (r, n);
       r->sig[SIGSZ-1] = SIG_MSB;
     }
+
+  if (DECIMAL_FLOAT_MODE_P (fmode))
+    decimal_real_convert (r, fmode, r);
 }