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Don't print leading zeros on hex dumps constants

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This commit is contained in:
Oliver Scherer 2020-02-05 12:17:41 +01:00
parent 4ddb4bdaad
commit e22ddfd80d
5 changed files with 17 additions and 21 deletions
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7
src/librustc/ty/print/pretty.rs
View File

@ -982,8 +982,7 @@ pub trait PrettyPrinter<'tcx>:
p!(write("{{null reference to "), print(ty), write("}}"))
}
(Scalar::Raw { data, .. }, ty::Ref(..)) | (Scalar::Raw { data, .. }, ty::RawPtr(_)) => {
let pointer_width = self.tcx().data_layout.pointer_size.bytes();
p!(write("0x{:01$x}", data, pointer_width as usize * 2))
p!(write("0x{:x}", data))
}
(Scalar::Ptr(ptr), ty::FnPtr(_)) => {
let instance = {
@ -995,9 +994,9 @@ pub trait PrettyPrinter<'tcx>:
// For zsts just print their type as their value gives no extra information
(Scalar::Raw { size: 0, .. }, _) => p!(print(ty)),
// Nontrivial types with scalar bit representation
(Scalar::Raw { data, size }, _) => {
(Scalar::Raw { data, .. }, _) => {
let print = |mut this: Self| {
write!(this, "0x{:01$x}", data, size as usize * 2)?;
write!(this, "transmute(0x{:x})", data)?;
Ok(this)
};
self = if print_ty {

2
src/test/mir-opt/const_prop/discriminant.rs
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@ -31,7 +31,7 @@ fn main() {
// START rustc.main.ConstProp.after.mir
// bb0: {
// ...
// _3 = const {0x01: std::option::Option<bool>};
// _3 = const {transmute(0x1): std::option::Option<bool>};
// _4 = const 1isize;
// switchInt(const 1isize) -> [1isize: bb2, otherwise: bb1];
// }

4
src/test/mir-opt/simplify-locals-removes-unused-consts.rs
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@ -3,7 +3,7 @@
fn use_zst(_: ((), ())) {}
struct Temp {
x: u8
x: u8,
}
fn use_u8(_: u8) {}
@ -56,7 +56,7 @@ fn main() {
// StorageLive(_8);
// StorageLive(_10);
// StorageLive(_11);
// _11 = const {0x28 : Temp};
// _11 = const {transmute(0x28) : Temp};
// _10 = const 40u8;
// StorageDead(_10);
// _8 = const use_u8(const 42u8) -> bb2;

3
src/test/ui/const-generics/raw-ptr-const-param.rs
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@ -1,6 +1,3 @@
// normalize-stderr-64bit "0x00000000" -> "0x[PREFIX]"
// normalize-stderr-32bit "0x" -> "0x[PREFIX]"
#![feature(const_generics, const_compare_raw_pointers)]
//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash

10
src/test/ui/const-generics/raw-ptr-const-param.stderr
View File

@ -1,5 +1,5 @@
warning: the feature `const_generics` is incomplete and may cause the compiler to crash
--> $DIR/raw-ptr-const-param.rs:4:12
--> $DIR/raw-ptr-const-param.rs:1:12
|
LL | #![feature(const_generics, const_compare_raw_pointers)]
| ^^^^^^^^^^^^^^
@ -7,15 +7,15 @@ LL | #![feature(const_generics, const_compare_raw_pointers)]
= note: `#[warn(incomplete_features)]` on by default
error[E0308]: mismatched types
--> $DIR/raw-ptr-const-param.rs:10:38
--> $DIR/raw-ptr-const-param.rs:7:40
|
LL | let _: Const<{ 15 as *const _ }> = Const::<{ 10 as *const _ }>;
| ----------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `0x[PREFIX]0000000f`, found `0x[PREFIX]0000000a`
| ------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `0xf`, found `0xa`
| |
| expected due to this
|
= note: expected struct `Const<0x[PREFIX]0000000f>`
found struct `Const<0x[PREFIX]0000000a>`
= note: expected struct `Const<0xf>`
found struct `Const<0xa>`
error: aborting due to previous error