rust/tests/mir-opt/building/custom/consts.rs
Ulrich Weigand 6885733c41 Fix mir-opt tests for big-endian platforms
The test cases src/test/mir-opt/building/custom/consts.rs and
src/test/mir-opt/const_prop/mutable_variable_no_prop.rs are
currently failing on big-endian platforms as the binary encoding
of some constants is hard-coded in the MIR test files.  Fix this
by choosing constant values that have the same encoding on big-
and little-endian platforms.

The test case src/test/mir-opt/issues/issue_75439.rs is failing
as well, but since the purpose of the test is to validate handling
of big-endian integer encodings on a little-endian platform, it does
not make much sense to run it on big-endian platforms in the first
place - we can just ignore it there.

Fixed part of https://github.com/rust-lang/rust/issues/105383.
2023-01-12 18:05:30 +01:00

37 lines
705 B
Rust

#![feature(custom_mir, core_intrinsics, inline_const)]
extern crate core;
use core::intrinsics::mir::*;
const D: i32 = 5;
// EMIT_MIR consts.consts.built.after.mir
#[custom_mir(dialect = "built")]
fn consts<const C: u32>() {
mir!({
let _a = 5_u8;
let _b = const { 5_i8 };
let _c = C;
let _d = D;
let _e = consts::<10>;
Return()
})
}
static S: i32 = 0x05050505;
static mut T: i32 = 0x0a0a0a0a;
// EMIT_MIR consts.statics.built.after.mir
#[custom_mir(dialect = "built")]
fn statics() {
mir!({
let _a: &i32 = Static(S);
let _b: *mut i32 = StaticMut(T);
Return()
})
}
fn main() {
consts::<5>();
statics();
}