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Diffstat (limited to 'tests/codegen/frame-pointer-cli-control.rs')
| -rw-r--r-- | tests/codegen/frame-pointer-cli-control.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/codegen/frame-pointer-cli-control.rs b/tests/codegen/frame-pointer-cli-control.rs new file mode 100644 index 00000000000..12282eea8f4 --- /dev/null +++ b/tests/codegen/frame-pointer-cli-control.rs @@ -0,0 +1,35 @@ +// compile-flags: --crate-type=rlib -Copt-level=0 +// revisions: force-on aarch64-apple aarch64-apple-off +// [force-on] compile-flags: -Cforce-frame-pointers=on +// [aarch64-apple] needs-llvm-components: aarch64 +// [aarch64-apple] compile-flags: --target=aarch64-apple-darwin +// [aarch64-apple-off] needs-llvm-components: aarch64 +// [aarch64-apple-off] compile-flags: --target=aarch64-apple-darwin -Cforce-frame-pointers=off +/* +Tests that the frame pointers can be controlled by the CLI. We find aarch64-apple-darwin useful +because of its icy-clear policy regarding frame pointers (software SHALL be compiled with them), +e.g. https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms says: + +* The frame pointer register (x29) must always address a valid frame record. Some functions — + such as leaf functions or tail calls — may opt not to create an entry in this list. + As a result, stack traces are always meaningful, even without debug information. +*/ +#![feature(no_core, lang_items)] +#![no_core] +#[lang = "sized"] +trait Sized {} +#[lang = "copy"] +trait Copy {} +impl Copy for u32 {} + +// CHECK: define i32 @peach{{.*}}[[PEACH_ATTRS:\#[0-9]+]] { +#[no_mangle] +pub fn peach(x: u32) -> u32 { + x +} + +// CHECK: attributes [[PEACH_ATTRS]] = { +// force-on-SAME: {{.*}}"frame-pointer"="all" +// aarch64-apple-SAME: {{.*}}"frame-pointer"="all" +// aarch64-apple-off-NOT: {{.*}}"frame-pointer"{{.*}} +// CHECK-SAME: } |