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D22824.diff
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D22824.diff

diff --git a/lib/msun/powerpc/fenv.h b/lib/msun/powerpc/fenv.h
--- a/lib/msun/powerpc/fenv.h
+++ b/lib/msun/powerpc/fenv.h
@@ -42,6 +42,17 @@
typedef __uint32_t fexcept_t;
/* Exception flags */
+#ifdef __SPE__
+#define FE_OVERFLOW 0x00000100
+#define FE_UNDERFLOW 0x00000200
+#define FE_DIVBYZERO 0x00000400
+#define FE_INVALID 0x00000800
+#define FE_INEXACT 0x00001000
+
+#define FE_ALL_INVALID FE_INVALID
+
+#define _FPUSW_SHIFT 6
+#else
#define FE_INEXACT 0x02000000
#define FE_DIVBYZERO 0x04000000
#define FE_UNDERFLOW 0x08000000
@@ -67,6 +78,9 @@
#define FE_ALL_INVALID (FE_VXCVI | FE_VXSQRT | FE_VXSOFT | FE_VXVC | \
FE_VXIMZ | FE_VXZDZ | FE_VXIDI | FE_VXISI | \
FE_VXSNAN | FE_INVALID)
+
+#define _FPUSW_SHIFT 22
+#endif
#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
FE_ALL_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
@@ -85,7 +99,6 @@
#define FE_DFL_ENV (&__fe_dfl_env)
/* We need to be able to map status flag positions to mask flag positions */
-#define _FPUSW_SHIFT 22
#define _ENABLE_MASK ((FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \
FE_OVERFLOW | FE_UNDERFLOW) >> _FPUSW_SHIFT)
@@ -156,6 +169,9 @@
return (0);
}
+#ifdef __SPE__
+extern int feraiseexcept(int __excepts);
+#else
__fenv_static inline int
feraiseexcept(int __excepts)
{
@@ -168,6 +184,7 @@
__mtfsf(__r);
return (0);
}
+#endif
__fenv_static inline int
fetestexcept(int __excepts)
diff --git a/lib/msun/powerpc/fenv.c b/lib/msun/powerpc/fenv.c
--- a/lib/msun/powerpc/fenv.c
+++ b/lib/msun/powerpc/fenv.c
@@ -30,6 +30,10 @@
#define __fenv_static
#include "fenv.h"
+#ifdef __SPE__
+#include <sys/types.h>
+#include <machine/spr.h>
+#endif
#ifdef __GNUC_GNU_INLINE__
#error "This file must be compiled with C99 'inline' semantics"
@@ -40,7 +44,9 @@
extern inline int feclearexcept(int __excepts);
extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
+#ifndef __SPE__
extern inline int feraiseexcept(int __excepts);
+#endif
extern inline int fetestexcept(int __excepts);
extern inline int fegetround(void);
extern inline int fesetround(int __round);
@@ -48,3 +54,27 @@
extern inline int feholdexcept(fenv_t *__envp);
extern inline int fesetenv(const fenv_t *__envp);
extern inline int feupdateenv(const fenv_t *__envp);
+
+#ifdef __SPE__
+#define PMAX 0x7f7fffff
+#define PMIN 0x00800000
+int feraiseexcept(int __excepts)
+{
+ uint32_t spefscr;
+
+ spefscr = mfspr(SPR_SPEFSCR);
+ mtspr(SPR_SPEFSCR, spefscr | (__excepts & FE_ALL_EXCEPT));
+
+ if (__excepts & FE_INVALID)
+ __asm __volatile ("efsdiv %0, %0, %1" :: "r"(0), "r"(0));
+ if (__excepts & FE_DIVBYZERO)
+ __asm __volatile ("efsdiv %0, %0, %1" :: "r"(1.0f), "r"(0));
+ if (__excepts & FE_UNDERFLOW)
+ __asm __volatile ("efsmul %0, %0, %0" :: "r"(PMIN));
+ if (__excepts & FE_OVERFLOW)
+ __asm __volatile ("efsadd %0, %0, %0" :: "r"(PMAX));
+ if (__excepts & FE_INEXACT)
+ __asm __volatile ("efssub %0, %0, %1" :: "r"(PMIN), "r"(1.0f));
+ return (0);
+}
+#endif

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