2014-09-19 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+ * config/s390/s390.md ("trunctdsd2", "extendsdtd2"): New
+ expanders.
+
+2014-09-19 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+
PR target/62662
* config/s390/s390.c (s390_emit_epilogue): When doing the return
address load optimization force s390_optimize_prologue to leave it
[(set_attr "op_type" "RRF")
(set_attr "type" "ftruncsd")])
+(define_expand "trunctdsd2"
+ [(parallel
+ [(set (match_dup 3)
+ (float_truncate:DD (match_operand:TD 1 "register_operand" "")))
+ (clobber (match_scratch:TD 2 ""))])
+ (set (match_operand:SD 0 "register_operand" "")
+ (float_truncate:SD (match_dup 3)))]
+ "TARGET_HARD_DFP"
+{
+ operands[3] = gen_reg_rtx (DDmode);
+})
+
;
; extend(sf|df)(df|tf)2 instruction pattern(s).
;
[(set_attr "op_type" "RRF")
(set_attr "type" "fsimptf")])
+(define_expand "extendsdtd2"
+ [(set (match_dup 2)
+ (float_extend:DD (match_operand:SD 1 "register_operand" "")))
+ (set (match_operand:TD 0 "register_operand" "")
+ (float_extend:TD (match_dup 2)))]
+ "TARGET_HARD_DFP"
+{
+ operands[2] = gen_reg_rtx (DDmode);
+})
+
; Binary Floating Point - load fp integer
; Expanders for: floor, btrunc, round, ceil, and nearbyint
+2014-09-19 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+
+ * gcc.target/s390/dfp-conv1.c: New testcase.
+
2014-09-19 Marat Zakirov <m.zakirov@samsung.com>
* c-c++-common/asan/red-align-1.c: New test.
--- /dev/null
+/* We do not have hardware instructions which do a direct conversion
+ between the 32 and 128 bit DFP types. But we can easily do it in
+ two steps. Older libdfp implementations require this not to call
+ into a lib in order to prevent an endless loop. */
+
+/* { dg-do compile } */
+/* { dg-options "-O3 -march=z10 -mzarch" } */
+
+_Decimal32
+foo (_Decimal128 a)
+{
+ return (_Decimal32)a;
+}
+
+_Decimal128
+bar (_Decimal32 a)
+{
+ return (_Decimal128)a;
+}
+
+/* Make sure no library call is emitted. */
+/* { dg-final { scan-assembler-not "brasl" } } */