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lvzhengyang
riscv-gcc-1
Commits
addd6f64
Commit
addd6f64
authored
Jun 06, 2005
by
Ben Elliston
Committed by
Ben Elliston
Jun 06, 2005
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* doc/md.texi (Insn Splitting): Fix some wording.
From-SVN: r100647
parent
43faca51
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gcc/ChangeLog
View file @
addd6f64
2005-06-06 Ben Elliston <bje@au.ibm.com>
* doc/md.texi (Insn Splitting): Fix some wording.
2005-06-05 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.c (rs6000_emit_swdivsf): New function.
...
...
gcc/doc/md.texi
View file @
addd6f64
...
...
@@ -4951,9 +4951,9 @@ jump. When new sequence contains multiple jump instructions or new labels,
more
assistance
is
needed
.
Splitter
is
required
to
create
only
unconditional
jumps
,
or
simple
conditional
jump
instructions
.
Additionally
it
must
attach
a
@code
{
REG_BR_PROB
}
note
to
each
conditional
jump
.
A
global
variable
@code
{
split_branch_probability
}
hold
the
probability
of
original
branch
in
case
@code
{
split_branch_probability
}
hold
s
the
probability
of
the
original
branch
in
case
it
was
an
simple
conditional
jump
,
@minus{}
1
otherwise
.
To
simplify
recomputing
of
edge
frequencies
,
new
sequence
is
required
to
have
only
recomputing
of
edge
frequencies
,
the
new
sequence
is
required
to
have
only
forward
jumps
to
the
newly
created
labels
.
@findex
define_insn_and_split
...
...
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