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authorPhilip Guenther <guenther@cvs.openbsd.org>2014-04-18 15:09:53 +0000
committerPhilip Guenther <guenther@cvs.openbsd.org>2014-04-18 15:09:53 +0000
commit00455d47d349e82fd280026ea5e471de9e052984 (patch)
treec42ac3701f1054f5849d6aa7639b454fee991b78 /lib/libm/arch/amd64
parentfd674b39f61470ab8f99a9b401b6871489c67a6c (diff)
It's been a quarter century: we can assume volatile is present with that name.
Diffstat (limited to 'lib/libm/arch/amd64')
-rw-r--r--lib/libm/arch/amd64/fenv.c78
1 files changed, 39 insertions, 39 deletions
diff --git a/lib/libm/arch/amd64/fenv.c b/lib/libm/arch/amd64/fenv.c
index 7ad3be7828e..708259d4d35 100644
--- a/lib/libm/arch/amd64/fenv.c
+++ b/lib/libm/arch/amd64/fenv.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: fenv.c,v 1.3 2012/12/05 23:20:02 deraadt Exp $ */
+/* $OpenBSD: fenv.c,v 1.4 2014/04/18 15:09:52 guenther Exp $ */
/* $NetBSD: fenv.c,v 1.1 2010/07/31 21:47:53 joerg Exp $ */
/*-
@@ -71,18 +71,18 @@ feclearexcept(int excepts)
excepts &= FE_ALL_EXCEPT;
/* Store the current x87 floating-point environment */
- __asm__ __volatile__ ("fnstenv %0" : "=m" (fenv));
+ __asm__ volatile ("fnstenv %0" : "=m" (fenv));
/* Clear the requested floating-point exceptions */
fenv.__x87.__status &= ~excepts;
/* Load the x87 floating-point environent */
- __asm__ __volatile__ ("fldenv %0" : : "m" (fenv));
+ __asm__ volatile ("fldenv %0" : : "m" (fenv));
/* Same for SSE environment */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
mxcsr &= ~excepts;
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (0);
}
@@ -101,10 +101,10 @@ fegetexceptflag(fexcept_t *flagp, int excepts)
excepts &= FE_ALL_EXCEPT;
/* Store the current x87 status register */
- __asm__ __volatile__ ("fnstsw %0" : "=am" (status));
+ __asm__ volatile ("fnstsw %0" : "=am" (status));
/* Store the MXCSR register */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
/* Store the results in flagp */
*flagp = (status | mxcsr) & excepts;
@@ -128,7 +128,7 @@ feraiseexcept(int excepts)
excepts &= FE_ALL_EXCEPT;
fesetexceptflag((fexcept_t *)&excepts, excepts);
- __asm__ __volatile__ ("fwait");
+ __asm__ volatile ("fwait");
return (0);
}
@@ -147,20 +147,20 @@ fesetexceptflag(const fexcept_t *flagp, int excepts)
excepts &= FE_ALL_EXCEPT;
/* Store the current x87 floating-point environment */
- __asm__ __volatile__ ("fnstenv %0" : "=m" (fenv));
+ __asm__ volatile ("fnstenv %0" : "=m" (fenv));
/* Set the requested status flags */
fenv.__x87.__status &= ~excepts;
fenv.__x87.__status |= *flagp & excepts;
/* Load the x87 floating-point environent */
- __asm__ __volatile__ ("fldenv %0" : : "m" (fenv));
+ __asm__ volatile ("fldenv %0" : : "m" (fenv));
/* Same for SSE environment */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
mxcsr &= ~excepts;
mxcsr |= *flagp & excepts;
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (0);
}
@@ -179,10 +179,10 @@ fetestexcept(int excepts)
excepts &= FE_ALL_EXCEPT;
/* Store the current x87 status register */
- __asm__ __volatile__ ("fnstsw %0" : "=am" (status));
+ __asm__ volatile ("fnstsw %0" : "=am" (status));
/* Store the MXCSR register state */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
return ((status | mxcsr) & excepts);
}
@@ -201,7 +201,7 @@ fegetround(void)
* out to be about 5 times faster than reading it on the SSE
* unit on an Opteron 244.
*/
- __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
+ __asm__ volatile ("fnstcw %0" : "=m" (control));
return (control & _X87_ROUND_MASK);
}
@@ -222,20 +222,20 @@ fesetround(int round)
return (-1);
/* Store the current x87 control word register */
- __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
+ __asm__ volatile ("fnstcw %0" : "=m" (control));
/* Set the rounding direction */
control &= ~_X87_ROUND_MASK;
control |= round;
/* Load the x87 control word register */
- __asm__ __volatile__ ("fldcw %0" : : "m" (control));
+ __asm__ volatile ("fldcw %0" : : "m" (control));
/* Same for the SSE environment */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
mxcsr &= ~(_X87_ROUND_MASK << _SSE_ROUND_SHIFT);
mxcsr |= round << _SSE_ROUND_SHIFT;
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (0);
}
@@ -248,10 +248,10 @@ int
fegetenv(fenv_t *envp)
{
/* Store the current x87 floating-point environment */
- __asm__ __volatile__ ("fnstenv %0" : "=m" (*envp));
+ __asm__ volatile ("fnstenv %0" : "=m" (*envp));
/* Store the MXCSR register state */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (envp->__mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (envp->__mxcsr));
/*
* When an FNSTENV instruction is executed, all pending exceptions are
@@ -261,7 +261,7 @@ fegetenv(fenv_t *envp)
* 8.6 X87 FPU EXCEPTION SYNCHRONIZATION -
* Intel(R) 64 and IA-32 Architectures Softare Developer's Manual - Vol1
*/
- __asm__ __volatile__ ("fldcw %0" : : "m" (envp->__x87.__control));
+ __asm__ volatile ("fldcw %0" : : "m" (envp->__x87.__control));
return (0);
}
@@ -278,13 +278,13 @@ feholdexcept(fenv_t *envp)
unsigned int mxcsr;
/* Store the current x87 floating-point environment */
- __asm__ __volatile__ ("fnstenv %0" : "=m" (*envp));
+ __asm__ volatile ("fnstenv %0" : "=m" (*envp));
/* Clear all exception flags in FPU */
- __asm__ __volatile__ ("fnclex");
+ __asm__ volatile ("fnclex");
/* Store the MXCSR register state */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (envp->__mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (envp->__mxcsr));
/* Clear exception flags in MXCSR */
mxcsr = envp->__mxcsr;
@@ -294,7 +294,7 @@ feholdexcept(fenv_t *envp)
mxcsr |= FE_ALL_EXCEPT << _SSE_MASK_SHIFT;
/* Store the MXCSR register */
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (0);
}
@@ -311,10 +311,10 @@ int
fesetenv(const fenv_t *envp)
{
/* Load the x87 floating-point environent */
- __asm__ __volatile__ ("fldenv %0" : : "m" (*envp));
+ __asm__ volatile ("fldenv %0" : : "m" (*envp));
/* Store the MXCSR register */
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (envp->__mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (envp->__mxcsr));
return (0);
}
@@ -334,10 +334,10 @@ feupdateenv(const fenv_t *envp)
unsigned int mxcsr;
/* Store the x87 status register */
- __asm__ __volatile__ ("fnstsw %0" : "=am" (status));
+ __asm__ volatile ("fnstsw %0" : "=am" (status));
/* Store the MXCSR register */
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
/* Install new floating-point environment */
fesetenv(envp);
@@ -359,15 +359,15 @@ feenableexcept(int mask)
mask &= FE_ALL_EXCEPT;
- __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("fnstcw %0" : "=m" (control));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
omask = ~(control | (mxcsr >> _SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
control &= ~mask;
- __asm__ __volatile__ ("fldcw %0" : : "m" (control));
+ __asm__ volatile ("fldcw %0" : : "m" (control));
mxcsr &= ~(mask << _SSE_MASK_SHIFT);
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (omask);
}
@@ -380,15 +380,15 @@ fedisableexcept(int mask)
mask &= FE_ALL_EXCEPT;
- __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
- __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
+ __asm__ volatile ("fnstcw %0" : "=m" (control));
+ __asm__ volatile ("stmxcsr %0" : "=m" (mxcsr));
omask = ~(control | (mxcsr >> _SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
control |= mask;
- __asm__ __volatile__ ("fldcw %0" : : "m" (control));
+ __asm__ volatile ("fldcw %0" : : "m" (control));
mxcsr |= mask << _SSE_MASK_SHIFT;
- __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
+ __asm__ volatile ("ldmxcsr %0" : : "m" (mxcsr));
return (omask);
}
@@ -402,7 +402,7 @@ fegetexcept(void)
* We assume that the masks for the x87 and the SSE unit are
* the same.
*/
- __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
+ __asm__ volatile ("fnstcw %0" : "=m" (control));
return (~control & FE_ALL_EXCEPT);
}