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Re: [PATCH v2 2/6] [powerpc] No need to enter "Ignore Exceptions Mode"



On 9/19/19 1:46 PM, Paul A. Clarke wrote:

From: "Paul A. Clarke" <pc@us.ibm.com>

Since at least POWER8, there is no performance advantage to entering
"Ignore Exceptions Mode", and doing so conditionally requires the
conditional logic as well as a system call.  Make it a no-op.

2019-09-19  Paul A. Clarke  <pc@us.ibm.com>

	* sysdeps/powerpc/fpu/fenv_libc.h:
	(__ENTER_NON_STOP): New.
	(__EXIT_NON_STOP): New.
	(__TEST_AND_ENTER_NON_STOP): Use __ENTER_NON_STOP.
	(__TEST_AND_EXIT_NON_STOP): Use __EXIT_NON_STOP.
---
v2: This is a new patch in the series.

  sysdeps/powerpc/fpu/fenv_libc.h | 12 ++++++++++--
  1 file changed, 10 insertions(+), 2 deletions(-)



OK.

Reviewed-By: Paul E Murphy <murphyp@linux.ibm.com>
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