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(parent: 2791128) | patch
target-ppc: VXSQRT Should Not Be Set for NaNs
authorTom Musta <tommusta@gmail.com>
Wed, 12 Nov 2014 21:45:59 +0000 (15:45 -0600)
committerAlexander Graf <agraf@suse.de>
Wed, 7 Jan 2015 15:16:25 +0000 (16:16 +0100)
commitb748863a7f7d2996255dd2cb5a20e49785cc7387
treedc26f3bd6961280d1ce3fb5200d8298d0419a587tree | snapshot
parent2791128e2fa8b96d0b81622404655529b0b4fd4dcommit | diff
target-ppc: VXSQRT Should Not Be Set for NaNs

The Power ISA square root instructions (fsqrt[s], frsqrte[s]) must
set the FPSCR[VXSQRT] flag when operating on a negative value.
However, NaNs have no sign and therefore this flag should not
be set when operating on one.

Change the order of the checks in the helper code.  Move the
SNaN-to-QNaN macro to the top of the file so that it can be
re-used.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
target-ppc/fpu_helper.c diff | blob | history
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