rust/tests/assembly/cstring-merging.rs
Jens Reidel 2d51acd2fb
tests: assembly: cstring-merging: Disable GlobalMerge pass
The test relies on LLVM not merging all the globals into one and would
currently otherwise fail on powerpc64le.

Signed-off-by: Jens Reidel <adrian@travitia.xyz>
2025-07-18 19:45:36 +02:00

30 lines
804 B
Rust

// MIPS assembler uses the label prefix `$anon.` for local anonymous variables
// other architectures (including ARM and x86-64) use the prefix `.Lanon.`
//@ only-linux
//@ assembly-output: emit-asm
//@ compile-flags: --crate-type=lib -Copt-level=3 -Cllvm-args=-enable-global-merge=0
//@ edition: 2024
use std::ffi::CStr;
// CHECK: .section .rodata.str1.{{[12]}},"aMS"
// CHECK: {{(\.L|\$)}}anon.{{.+}}:
// CHECK-NEXT: .asciz "foo"
#[unsafe(no_mangle)]
static CSTR: &[u8; 4] = b"foo\0";
// CHECK-NOT: .section
// CHECK: {{(\.L|\$)}}anon.{{.+}}:
// CHECK-NEXT: .asciz "bar"
#[unsafe(no_mangle)]
pub fn cstr() -> &'static CStr {
c"bar"
}
// CHECK-NOT: .section
// CHECK: {{(\.L|\$)}}anon.{{.+}}:
// CHECK-NEXT: .asciz "baz"
#[unsafe(no_mangle)]
pub fn manual_cstr() -> &'static str {
"baz\0"
}