Remove an unneeded fnstcw instruction.
Noticed by: bde
This commit is contained in:
parent
cc0d85b680
commit
3cb636ce18
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=165795
@ -72,16 +72,14 @@ feraiseexcept(int excepts)
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int
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fegetenv(fenv_t *envp)
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{
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int control;
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/*
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* fnstenv masks all exceptions, so we need to save and
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* restore the control word to avoid this side effect.
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*/
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__fnstcw(&control);
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__fnstenv(&envp->__x87);
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__stmxcsr(&envp->__mxcsr);
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__fldcw(control);
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/*
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* fnstenv masks all exceptions, so we need to restore the
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* control word to avoid this side effect.
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*/
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__fldcw(envp->__x87.__control);
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return (0);
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}
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@ -117,19 +117,18 @@ feraiseexcept(int excepts)
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int
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fegetenv(fenv_t *envp)
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{
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int control, mxcsr;
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int mxcsr;
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/*
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* fnstenv masks all exceptions, so we need to save and
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* restore the control word to avoid this side effect.
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*/
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__fnstcw(&control);
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__fnstenv(envp);
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/*
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* fnstenv masks all exceptions, so we need to restore
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* the old control word to avoid this side effect.
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*/
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__fldcw(envp->__control);
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if (__HAS_SSE()) {
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__stmxcsr(&mxcsr);
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__set_mxcsr(*envp, mxcsr);
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}
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__fldcw(control);
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return (0);
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}
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