diff options
| author | Stuart Cook <Zalathar@users.noreply.github.com> | 2025-08-29 12:54:11 +1000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-08-29 12:54:11 +1000 |
| commit | 4ccf8ca7202d731cfb8fcea437a4413cf8e29af5 (patch) | |
| tree | 59103ec6c53a49d2f37120728145d716b959a2d9 | |
| parent | 4b0933a0a567079fab35b4b860f61781360364bd (diff) | |
| parent | f9c765ed76bcaa9aa2ccc902e61e3de91ec96837 (diff) | |
| download | rust-4ccf8ca7202d731cfb8fcea437a4413cf8e29af5.tar.gz rust-4ccf8ca7202d731cfb8fcea437a4413cf8e29af5.zip | |
Rollup merge of #145884 - clubby789:test-mcount, r=Mark-Simulacrum
Test `instrument-mcount` codegen Closes rust-lang/rust#92109 by testing that a call to `mcount` is actually emitted
| -rw-r--r-- | tests/assembly-llvm/x86_64-mcount.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/assembly-llvm/x86_64-mcount.rs b/tests/assembly-llvm/x86_64-mcount.rs new file mode 100644 index 00000000000..0428272cfc5 --- /dev/null +++ b/tests/assembly-llvm/x86_64-mcount.rs @@ -0,0 +1,24 @@ +//@ assembly-output: emit-asm +//@ compile-flags: -Zinstrument-mcount=y -Cllvm-args=-x86-asm-syntax=intel + +//@ revisions: x86_64-linux +//@[x86_64-linux] compile-flags: --target=x86_64-unknown-linux-gnu +//@[x86_64-linux] needs-llvm-components: x86 +//@[x86_64-linux] only-x86_64-unknown-linux-gnu + +//@ revisions: x86_64-darwin +//@[x86_64-darwin] compile-flags: --target=x86_64-apple-darwin +//@[x86_64-darwin] needs-llvm-components: x86 +//@[x86_64-darwin] only-x86_64-apple-darwin + +#![crate_type = "lib"] + +// CHECK-LABEL: mcount_func: +#[no_mangle] +pub fn mcount_func() { + // CHECK: call mcount + + std::hint::black_box(()); + + // CHECK: ret +} |