[PATCH 03/10] libgcc: Enable XF mode conversions to/from DFP modes only if supported

[Christophe Lyon via Gcc-patches]

Some targets do not support XF mode (eg AArch64), so don't build the
corresponding to/from DFP modes convertion routines if
__LIBGCC_HAS_XF_MODE__ is not defined.

2022-03-31  Christophe Lyon  <christophe.l...@arm.com>

        libgcc/
        * config/libbid/_dd_to_xf.c: Check __LIBGCC_HAS_XF_MODE__.
        * config/libbid/_sd_to_xf.c: Likewise.
        * config/libbid/_td_to_xf.c: Likewise.
        * config/libbid/_xf_to_dd.c: Likewise.
        * config/libbid/_xf_to_sd.c: Likewise.
        * config/libbid/_xf_to_td.c: Likewise.
---
 libgcc/config/libbid/_dd_to_xf.c | 2 ++
 libgcc/config/libbid/_sd_to_xf.c | 2 ++
 libgcc/config/libbid/_td_to_xf.c | 2 ++
 libgcc/config/libbid/_xf_to_dd.c | 2 ++
 libgcc/config/libbid/_xf_to_sd.c | 2 ++
 libgcc/config/libbid/_xf_to_td.c | 2 ++
 6 files changed, 12 insertions(+)

diff --git a/libgcc/config/libbid/_dd_to_xf.c b/libgcc/config/libbid/_dd_to_xf.c
index 5a2abbbb1f4..e4b12e8ac4f 100644
--- a/libgcc/config/libbid/_dd_to_xf.c
+++ b/libgcc/config/libbid/_dd_to_xf.c
@@ -25,6 +25,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 XFtype
 __bid_extendddxf (_Decimal64 x) {
   XFtype res;
@@ -34,3 +35,4 @@ __bid_extendddxf (_Decimal64 x) {
   res = __bid64_to_binary80 (ux.i);
   return (res);
 }
+#endif
diff --git a/libgcc/config/libbid/_sd_to_xf.c b/libgcc/config/libbid/_sd_to_xf.c
index 9af09913684..288ccb25075 100644
--- a/libgcc/config/libbid/_sd_to_xf.c
+++ b/libgcc/config/libbid/_sd_to_xf.c
@@ -25,6 +25,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 XFtype
 __bid_extendsdxf (_Decimal32 x) {
   XFtype res;
@@ -34,3 +35,4 @@ __bid_extendsdxf (_Decimal32 x) {
   res = __bid32_to_binary80 (ux.i);
   return (res);
 }
+#endif
diff --git a/libgcc/config/libbid/_td_to_xf.c b/libgcc/config/libbid/_td_to_xf.c
index b0c76a71497..e990282162d 100644
--- a/libgcc/config/libbid/_td_to_xf.c
+++ b/libgcc/config/libbid/_td_to_xf.c
@@ -25,6 +25,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 XFtype
 __bid_trunctdxf (_Decimal128 x) {
   XFtype res;
@@ -34,3 +35,4 @@ __bid_trunctdxf (_Decimal128 x) {
   res = __bid128_to_binary80 (ux.i);
   return (res);
 }
+#endif
diff --git a/libgcc/config/libbid/_xf_to_dd.c b/libgcc/config/libbid/_xf_to_dd.c
index 9feb0f2c3d6..e3246a1c2e1 100644
--- a/libgcc/config/libbid/_xf_to_dd.c
+++ b/libgcc/config/libbid/_xf_to_dd.c
@@ -25,9 +25,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 _Decimal64
 __bid_truncxfdd (XFtype x) {
   union decimal64 res;
   res.i = __binary80_to_bid64 (x);
   return (res.d);
 }
+#endif
diff --git a/libgcc/config/libbid/_xf_to_sd.c b/libgcc/config/libbid/_xf_to_sd.c
index 7d46548af6c..9147e979182 100644
--- a/libgcc/config/libbid/_xf_to_sd.c
+++ b/libgcc/config/libbid/_xf_to_sd.c
@@ -25,9 +25,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 _Decimal32
 __bid_truncxfsd (XFtype x) {
   union decimal32 res;
   res.i = __binary80_to_bid32 (x);
   return (res.d);
 }
+#endif
diff --git a/libgcc/config/libbid/_xf_to_td.c b/libgcc/config/libbid/_xf_to_td.c
index 07987fdcc3a..c8d102b0b7f 100644
--- a/libgcc/config/libbid/_xf_to_td.c
+++ b/libgcc/config/libbid/_xf_to_td.c
@@ -25,9 +25,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If 
not, see
 #include "bid_functions.h"
 #include "bid_gcc_intrinsics.h"
 
+#ifdef __LIBGCC_HAS_XF_MODE__
 _Decimal128
 __bid_extendxftd (XFtype x) {
   union decimal128 res;
   res.i = __binary80_to_bid128 (x);
   return (res.d);
 }
+#endif
-- 
2.25.1