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1bc402fd
编写于
12月 03, 2017
作者:
S
Scott McMurray
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电子邮件补丁
差异文件
Add an i128_lowering flag in TargetOptions
Not actually enabled by default anywhere yet.
上级
fdfbcf85
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
13 addition
and
5 deletion
+13
-5
src/librustc/session/config.rs
src/librustc/session/config.rs
+3
-2
src/librustc_back/target/mod.rs
src/librustc_back/target/mod.rs
+5
-0
src/librustc_mir/transform/lower_128bit.rs
src/librustc_mir/transform/lower_128bit.rs
+3
-1
src/test/mir-opt/lower_128bit_debug_test.rs
src/test/mir-opt/lower_128bit_debug_test.rs
+1
-1
src/test/mir-opt/lower_128bit_test.rs
src/test/mir-opt/lower_128bit_test.rs
+1
-1
未找到文件。
src/librustc/session/config.rs
浏览文件 @
1bc402fd
...
...
@@ -1176,9 +1176,10 @@ fn parse_optimization_fuel(slot: &mut Option<(String, u64)>, v: Option<&str>) ->
saturating_float_casts
:
bool
=
(
false
,
parse_bool
,
[
TRACKED
],
"make float->int casts UB-free: numbers outside the integer type's range are clipped to
\
the max/min integer respectively, and NaN is mapped to 0"
),
lower_128bit_ops
:
bool
=
(
false
,
parse
_bool
,
[
TRACKED
],
lower_128bit_ops
:
Option
<
bool
>
=
(
None
,
parse_opt
_bool
,
[
TRACKED
],
"rewrite operators on i128 and u128 into lang item calls (typically provided
\
by compiler-builtins) so translation doesn't need to support them"
),
by compiler-builtins) so translation doesn't need to support them,
overriding the default for the current target"
),
}
pub
fn
default_lib_output
()
->
CrateType
{
...
...
src/librustc_back/target/mod.rs
浏览文件 @
1bc402fd
...
...
@@ -453,6 +453,10 @@ pub struct TargetOptions {
/// Whether library functions call lowering/optimization is disabled in LLVM
/// for this target unconditionally.
pub
no_builtins
:
bool
,
/// Whether to lower 128-bit operations to compiler_builtins calls. Use if
/// your backend only supports 64-bit and smaller math.
pub
i128_lowering
:
bool
,
}
impl
Default
for
TargetOptions
{
...
...
@@ -521,6 +525,7 @@ fn default() -> TargetOptions {
requires_lto
:
false
,
singlethread
:
false
,
no_builtins
:
false
,
i128_lowering
:
false
,
}
}
}
...
...
src/librustc_mir/transform/lower_128bit.rs
浏览文件 @
1bc402fd
...
...
@@ -25,7 +25,9 @@ fn run_pass<'a, 'tcx>(&self,
tcx
:
TyCtxt
<
'a
,
'tcx
,
'tcx
>
,
_
src
:
MirSource
,
mir
:
&
mut
Mir
<
'tcx
>
)
{
if
!
tcx
.sess.opts.debugging_opts.lower_128bit_ops
{
let
debugging_override
=
tcx
.sess.opts.debugging_opts.lower_128bit_ops
;
let
target_default
=
tcx
.sess.host.options.i128_lowering
;
if
!
debugging_override
.unwrap_or
(
target_default
)
{
return
}
...
...
src/test/mir-opt/lower_128bit_debug_test.rs
浏览文件 @
1bc402fd
...
...
@@ -13,7 +13,7 @@
// ignore-asmjs
// ignore-emscripten
// compile-flags: -Z lower_128bit_ops -C debug_assertions=yes
// compile-flags: -Z lower_128bit_ops
=yes
-C debug_assertions=yes
#![feature(i128_type)]
...
...
src/test/mir-opt/lower_128bit_test.rs
浏览文件 @
1bc402fd
...
...
@@ -13,7 +13,7 @@
// ignore-asmjs
// ignore-emscripten
// compile-flags: -Z lower_128bit_ops -C debug_assertions=no
// compile-flags: -Z lower_128bit_ops
=yes
-C debug_assertions=no
#![feature(i128_type)]
...
...
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