mirror of
https://github.com/rust-lang/rust.git
synced 2025-09-30 00:03:49 +00:00
9d08596a2e
Resolve several ./x test failures on RISC-V caused by ABI and codegen differences. Update multiple codegen-llvm tests for compatibility, and explicitly set the target for transmute-scalar.rs to x86_64 to ensure consistent behavior across hosts.
29 lines
997 B
Rust
29 lines
997 B
Rust
//@ compile-flags: -Copt-level=1 -Cno-prepopulate-passes
|
|
|
|
// This test is here to hit the `Rvalue::Repeat` case in `codegen_rvalue_operand`.
|
|
// It only applies when the resulting array is a ZST, so the test is written in
|
|
// such a way as to keep MIR optimizations from seeing that fact and removing
|
|
// the local and statement altogether. (At the time of writing, no other codegen
|
|
// test hit that code path, nor did a stage 2 build of the compiler.)
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
#[repr(transparent)]
|
|
pub struct Wrapper<T, const N: usize>([T; N]);
|
|
|
|
// CHECK-LABEL: define {{.+}}do_repeat{{.+}}(i32 noundef{{( signext)?}} %x)
|
|
// CHECK-NEXT: start:
|
|
// CHECK-NOT: alloca
|
|
// CHECK-NEXT: ret void
|
|
#[inline(never)]
|
|
pub fn do_repeat<T: Copy, const N: usize>(x: T) -> Wrapper<T, N> {
|
|
Wrapper([x; N])
|
|
}
|
|
|
|
// CHECK-LABEL: @trigger_repeat_zero_len
|
|
#[no_mangle]
|
|
pub fn trigger_repeat_zero_len() -> Wrapper<u32, 0> {
|
|
// CHECK: call void {{.+}}do_repeat{{.+}}(i32 noundef{{( signext)?}} 4)
|
|
do_repeat(4)
|
|
}
|