Revert "Use the Rust implementation of udivsi3 on ARM"

This reverts commit 681aaa914d.
This commit is contained in:
Alex Crichton 2019-05-02 12:47:51 -07:00
parent 045de6e516
commit 4bbc838ac7
4 changed files with 9 additions and 13 deletions

View File

@ -289,6 +289,7 @@ mod c {
"arm/clzdi2.S",
"arm/clzsi2.S",
"arm/divmodsi4.S",
"arm/divsi3.S",
"arm/modsi3.S",
"arm/switch16.S",
"arm/switch32.S",
@ -296,20 +297,8 @@ mod c {
"arm/switchu8.S",
"arm/sync_synchronize.S",
"arm/udivmodsi4.S",
"arm/udivsi3.S",
"arm/umodsi3.S",
// Exclude these two files for now even though we haven't
// translated their implementation into Rust yet (#173).
// They appear... buggy? The `udivsi3` implementation was
// the one that seemed buggy, but the `divsi3` file
// references a symbol from `udivsi3` so we compile them
// both with the Rust versions.
//
// Note that if these are added back they should be removed
// from thumbv6m below.
//
// "arm/divsi3.S",
// "arm/udivsi3.S",
],
);
@ -427,12 +416,14 @@ mod c {
"clzdi2",
"clzsi2",
"divmodsi4",
"divsi3",
"modsi3",
"switch16",
"switch32",
"switch8",
"switchu8",
"udivmodsi4",
"udivsi3",
"umodsi3",
],
);

View File

@ -24,6 +24,7 @@ run() {
-v `pwd`:/checkout:ro \
-v `rustc --print sysroot`:/rust:ro \
-w /checkout \
--init \
$target \
sh -c "HOME=/tmp PATH=\$PATH:/rust/bin ci/run.sh $target"
}

View File

@ -57,6 +57,7 @@ impl Divmod for i32 {}
impl Divmod for i64 {}
intrinsics! {
#[use_c_shim_if(all(target_arch = "arm", not(target_os = "ios"), not(thumbv6m)))]
#[arm_aeabi_alias = __aeabi_idiv]
pub extern "C" fn __divsi3(a: i32, b: i32) -> i32 {
a.div(b)

View File

@ -152,6 +152,9 @@ macro_rules! udivmod_inner {
}
intrinsics! {
#[use_c_shim_if(all(target_arch = "arm",
not(target_os = "ios"),
not(thumbv6m)))]
#[arm_aeabi_alias = __aeabi_uidiv]
/// Returns `n / d`
pub extern "C" fn __udivsi3(n: u32, d: u32) -> u32 {