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lvzhengyang
riscv-gcc-1
Commits
1c02f6f2
Commit
1c02f6f2
authored
Feb 03, 2004
by
Wolfgang Bangerth
Committed by
Steven Bosscher
Feb 03, 2004
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Commit for Wolfgang Bangerth:
* doc/invoke.texi (x86 options): Fix spelling/wording From-SVN: r77200
parent
e262dfbc
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gcc/ChangeLog
View file @
1c02f6f2
2004-02-03 Wolfgang Bangerth <bangerth@dealii.org>
* doc/invoke.texi (x86 options): Fix spelling/wording.
2004-02-03 Richard Sandiford <rsandifo@redhat.com>
* config/mips/iris5.h (ASM_OUTPUT_ASCII): Use mips_output_ascii to
...
...
gcc/doc/invoke.texi
View file @
1c02f6f2
...
...
@@ -8175,7 +8175,7 @@ These synonyms are deprecated.
@
item
-
mfpmath
=@
var
{
unit
}
@
opindex
march
generate
floating
point
arithmetics
for
selected
unit
@
var
{
unit
}.
t
he
choices
Generate
floating
point
arithmetics
for
selected
unit
@
var
{
unit
}.
T
he
choices
for
@
var
{
unit
}
are
:
@
table
@
samp
...
...
@@ -8201,11 +8201,11 @@ For i387 you need to use @option{-march=@var{cpu-type}}, @option{-msse} or
@
option
{-
msse2
}
switches
to
enable
SSE
extensions
and
make
this
option
effective
.
For
x86
-
64
compiler
,
these
extensions
are
enabled
by
default
.
The
resulting
code
should
be
considerably
faster
in
majority
of
cases
and
avoid
The
resulting
code
should
be
considerably
faster
in
the
majority
of
cases
and
avoid
the
numerical
instability
problems
of
387
code
,
but
may
break
some
existing
code
that
expects
temporaries
to
be
80
bit
.
This
is
the
default
choice
for
x86
-
64
compiler
.
This
is
the
default
choice
for
the
x86
-
64
compiler
.
@
item
pni
Use
all
SSE
extensions
enabled
by
@
option
{-
msse2
}
as
well
as
the
new
...
...
@@ -8218,7 +8218,7 @@ enables 2 builtin functions, @code{__builtin_ia32_monitor} and
Attempt
to
utilize
both
instruction
sets
at
once
.
This
effectively
double
the
amount
of
available
registers
and
on
chips
with
separate
execution
units
for
387
and
SSE
the
execution
resources
too
.
Use
this
option
with
care
,
as
it
is
still
experimental
,
because
gcc
register
allocator
does
not
model
separate
still
experimental
,
because
the
gcc
register
allocator
does
not
model
separate
functional
units
well
resulting
in
instable
performance
.
@
end
table
...
...
@@ -8309,10 +8309,10 @@ Notice that neither of these options enable any extra precision over the x87
standard
of
80
bits
for
a
@
code
{
long
double
}.
@
strong
{
Warning
:}
if
you
override
the
default
value
for
your
target
ABI
,
the
structures
and
arrays
containing
@
code
{
long
double
}
will
change
their
size
as
well
as
function
calling
convention
for
function
taking
@
code
{
long
double
}
will
be
modified
.
Hence
they
will
not
be
binary
compatible
with
arrays
or
structures
in
code
compiled
without
that
switch
.
structures
and
arrays
containing
@
code
{
long
double
}
variables
will
change
their
size
as
well
as
function
calling
convention
for
function
taking
@
code
{
long
double
}
will
be
modified
.
Hence
they
will
not
be
binary
compatible
with
arrays
or
structures
in
code
compiled
without
that
switch
.
@
item
-
msvr3
-
shlib
...
...
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