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SH: No FE_UPWARD, FE_DOWNWARD.

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This commit is contained in:
Thomas Schwinge 2012-06-09 18:46:01 +02:00
parent 366af02c96
commit 99ff6e5c49
4 changed files with 14 additions and 11 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2012-06-09 Thomas Schwinge <thomas@codesourcery.com>
* sysdeps/sh/sh4/fpu/bits/fenv.h (__FE_UNDEFINED): Define.
(FE_UPWARD, FE_DOWNWARD): Don't define.
* sysdeps/sh/sh4/fpu/fegetround.c (fegetround): Adapt to that.
* sysdeps/sh/sh4/fpu/fesetround.c (fesetround): Likewise.
* sysdeps/sh/sh4/fpu/fegetenv.c (fegetenv): Do not re-write fpscr after
reading it.
* sysdeps/sh/sh4/fpu/fegetexcept.c (fegetexcept): Likewise.

14
sysdeps/sh/sh4/fpu/bits/fenv.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
/* Copyright (C) 1999-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -39,19 +39,17 @@ enum
#define FE_ALL_EXCEPT \
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
/* The SH FPU supports all of the four defined rounding modes. We
use again the bit positions in the FPU control word as the values
for the appropriate macros. */
/* The SH FPU supports two of the four defined rounding modes: round to nearest
and round to zero. We use again the bit positions in the FPU control word
as the values for the appropriate macros. */
enum
{
__FE_UNDEFINED = -1,
FE_TONEAREST = 0x0,
#define FE_TONEAREST FE_TONEAREST
FE_TOWARDZERO = 0x1,
#define FE_TOWARDZERO FE_TOWARDZERO
FE_UPWARD = 0x2,
#define FE_UPWARD FE_UPWARD
FE_DOWNWARD = 0x3
#define FE_DOWNWARD FE_DOWNWARD
};

2
sysdeps/sh/sh4/fpu/fegetround.c
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@ -28,5 +28,5 @@ fegetround (void)
/* Get control word. */
_FPU_GETCW (cw);
return cw & 0x3;
return cw & 0x1;
}

4
sysdeps/sh/sh4/fpu/fesetround.c
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@ -25,7 +25,7 @@ fesetround (int round)
{
fpu_control_t cw;
if ((round & ~0x3) != 0)
if ((round & ~0x1) != 0)
/* ROUND is no valid rounding mode. */
return 1;
@ -33,7 +33,7 @@ fesetround (int round)
_FPU_GETCW (cw);
/* Set rounding bits. */
cw &= ~0x3;
cw &= ~0x1;
cw |= round;
/* Set new state. */
_FPU_SETCW (cw);