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-rw-r--r--libgcc/ChangeLog9
-rw-r--r--libgcc/config/ia64/sfp-exceptions.c54
-rw-r--r--libgcc/config/ia64/sfp-machine.h64
-rw-r--r--libgcc/config/ia64/t-softfp2
4 files changed, 85 insertions, 44 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 17a2122..7f89da3 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,5 +1,14 @@
2012-06-13 Uros Bizjak <ubizjak@gmail.com>
+ * config/ia64/sfp-machine.h (__sfp_handle_exceptions): New
+ function declaration.
+ (FP_HANDLE_EXCEPTIONS): Use __sfp_handle_exceptions.
+ (FP_RND_MASK): New.
+ * config/ia64/sfp-exceptions.c: New.
+ * config/ia64/t-softfp (LIB2ADD): Add sfp-exceptions.c.
+
+2012-06-13 Uros Bizjak <ubizjak@gmail.com>
+
* config/i386/32/sfp-machine.h (_FP_NANSIGN_S, _FP_NANSIGN_D,
_FP_NANSIGN_E, _FP_NANSIGN_Q): Move ...
* config/i386/64/sfp-machine: ... (delete here) ...
diff --git a/libgcc/config/ia64/sfp-exceptions.c b/libgcc/config/ia64/sfp-exceptions.c
new file mode 100644
index 0000000..58113c7
--- /dev/null
+++ b/libgcc/config/ia64/sfp-exceptions.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 Free Software Foundation, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Under Section 7 of GPL version 3, you are granted additional
+ * permissions described in the GCC Runtime Library Exception, version
+ * 3.1, as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License and
+ * a copy of the GCC Runtime Library Exception along with this program;
+ * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "sfp-machine.h"
+
+void
+__sfp_handle_exceptions (int _fex)
+{
+ double d;
+
+ if (_fex & FP_EX_INVALID)
+ {
+ asm volatile ("frcpa.s0 %0, p1 = f0, f0" : "=f" (d) : : "p1");
+ }
+ if (_fex & FP_EX_DIVZERO)
+ {
+ asm volatile ("frcpa.s0 %0, p1 = f1, f0" : "=f" (d) : : "p1");
+ }
+ if (_fex & FP_EX_OVERFLOW)
+ {
+ d = __DBL_MAX__;
+ asm volatile ("fadd.d.s0 %0 = %0, %0" : "+f" (d));
+ }
+ if (_fex & FP_EX_UNDERFLOW)
+ {
+ d = __DBL_MIN__;
+ asm volatile ("fnma.d.s0 %0 = %0, %0, f0" : "+f" (d));
+ }
+ if (_fex & FP_EX_INEXACT)
+ {
+ d = __DBL_MAX__;
+ asm volatile ("fsub.d.s0 %0 = %0, f1" : "+f" (d));
+ }
+}
diff --git a/libgcc/config/ia64/sfp-machine.h b/libgcc/config/ia64/sfp-machine.h
index bdcce77..e86b7e3 100644
--- a/libgcc/config/ia64/sfp-machine.h
+++ b/libgcc/config/ia64/sfp-machine.h
@@ -13,7 +13,7 @@ typedef unsigned int UTItype __attribute__ ((mode (TI)));
typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
#define CMPtype __gcc_CMPtype
-#define _FP_MUL_MEAT_Q(R,X,Y) \
+#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
@@ -22,13 +22,14 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
#define _FP_NANFRAC_D _FP_QNANBIT_D
#define _FP_NANFRAC_E _FP_QNANBIT_E, 0
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
+
+#define _FP_KEEPNANFRACP 1
+
#define _FP_NANSIGN_S 1
#define _FP_NANSIGN_D 1
#define _FP_NANSIGN_E 1
#define _FP_NANSIGN_Q 1
-#define _FP_KEEPNANFRACP 1
-
/* Here is something Intel misdesigned: the specs don't define
the case where we have two NaNs with same mantissas, but
different sign. Different operations pick up different NaNs. */
@@ -38,12 +39,12 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
|| (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
{ \
R##_s = X##_s; \
- _FP_FRAC_COPY_##wc(R,X); \
+ _FP_FRAC_COPY_##wc(R,X); \
} \
else \
{ \
R##_s = Y##_s; \
- _FP_FRAC_COPY_##wc(R,Y); \
+ _FP_FRAC_COPY_##wc(R,Y); \
} \
R##_c = FP_CLS_NAN; \
} while (0)
@@ -55,55 +56,30 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
#define FP_EX_UNDERFLOW 0x10
#define FP_EX_INEXACT 0x20
-#define FP_HANDLE_EXCEPTIONS \
- do { \
- double tmp, dummy; \
- if (_fex & FP_EX_INVALID) \
- { \
- tmp = 0.0; \
- __asm__ __volatile__ ("frcpa.s0 %0,p1=f0,f0" \
- : "=f" (tmp) : : "p1" ); \
- } \
- if (_fex & FP_EX_DIVZERO) \
- { \
- __asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" \
- : "=f" (tmp) : : "p1" ); \
- } \
- if (_fex & FP_EX_OVERFLOW) \
- { \
- dummy = __DBL_MAX__; \
- __asm__ __volatile__ ("fadd.d.s0 %0=%1,%1" \
- : "=f" (dummy) : "0" (dummy)); \
- } \
- if (_fex & FP_EX_UNDERFLOW) \
- { \
- dummy = __DBL_MIN__; \
- __asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0" \
- : "=f" (tmp) : "f" (dummy)); \
- } \
- if (_fex & FP_EX_INEXACT) \
- { \
- dummy = __DBL_MAX__; \
- __asm__ __volatile__ ("fsub.d.s0 %0=%1,f1" \
- : "=f" (dummy) : "0" (dummy)); \
- } \
- } while (0)
+void __sfp_handle_exceptions (int);
+
+#define FP_HANDLE_EXCEPTIONS \
+ do { \
+ if (_fex) \
+ __sfp_handle_exceptions (_fex); \
+ } while (0);
#define FP_RND_NEAREST 0
#define FP_RND_ZERO 0xc00L
#define FP_RND_PINF 0x800L
#define FP_RND_MINF 0x400L
+#define FP_RND_MASK 0xc00L
+
#define _FP_DECL_EX \
- unsigned long int _fpsr __attribute__ ((unused)) = FP_RND_NEAREST
+ unsigned long int _fcw __attribute__ ((unused)) = FP_RND_NEAREST
-#define FP_INIT_ROUNDMODE \
- do { \
- __asm__ __volatile__ ("mov.m %0=ar.fpsr" \
- : "=r" (_fpsr)); \
+#define FP_INIT_ROUNDMODE \
+ do { \
+ __asm__ __volatile__ ("mov.m %0 = ar.fpsr" : "=r" (_fcw)); \
} while (0)
-#define FP_ROUNDMODE (_fpsr & 0xc00L)
+#define FP_ROUNDMODE (_fcw & FP_RND_MASK)
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
diff --git a/libgcc/config/ia64/t-softfp b/libgcc/config/ia64/t-softfp
index 90acc37..0ac35e7 100644
--- a/libgcc/config/ia64/t-softfp
+++ b/libgcc/config/ia64/t-softfp
@@ -1,2 +1,4 @@
# Provide fallbacks for __builtin_copysignq and __builtin_fabsq.
LIB2ADD += $(srcdir)/config/ia64/tf-signs.c
+
+LIB2ADD += $(srcdir)/config/ia64/sfp-exceptions.c
generated by cgit v1.1 at 2024-11-01 10:40:42 +0000