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fcmp{s,d,q} instructions are supposed to ignore quiet NaN (contrary to
the fcmpe{s,d,q} instructions), but the current code is wrongly setting
the NV exception in that case. Moreover the current code is duplicated:
first the arguments are checked for NaN to generate an exception, and
later in case the comparison is unordered (which can only happens if one
of the argument is a NaN), the same check is done to generate an
exception.
Fix that by calling clear_float_exceptions() followed by
check_ieee_exceptions() as for the other floating point instructions.
Use the _compare_quiet functions for fcmp{s,d,q} and the _compare ones
for fcmpe{s,d,q}. Simplify the flag setting by not clearing a flag that
is set the line just below.
This fix allows the math glibc testsuite to pass.
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Scripted conversion:
sed -i "s/CPUState/CPUSPARCState/g" target-sparc/*.[hc]
sed -i "s/#define CPUSPARCState/#define CPUState/" target-sparc/cpu.h
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
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This reduces the size of the individual translation blocks, since
we only emit a single call for each FOP rather than three. In
addition, clear_float_exceptions expands inline to a single byte store.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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This also removes the unused ENV parameter from these helpers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Make floating point and VIS ops take a parameter for CPUState instead
of relying on global env.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Move FPU op helpers to fop_helper.c. Move VIS op helpers to vis_helper.c,
compile it only for Sparc64.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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