From 5601490c9d889ff8d964d4aafd44dcdeea40bfef Mon Sep 17 00:00:00 2001 From: Andrew Zhogin Date: Wed, 15 Jan 2025 20:43:02 +0700 Subject: -Zretpoline and -Zretpoline-external-thunk flags (target modifiers) to enable retpoline-related target features --- tests/codegen/retpoline.rs | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 tests/codegen/retpoline.rs (limited to 'tests/codegen') diff --git a/tests/codegen/retpoline.rs b/tests/codegen/retpoline.rs new file mode 100644 index 00000000000..30fdd9c2db2 --- /dev/null +++ b/tests/codegen/retpoline.rs @@ -0,0 +1,29 @@ +// ignore-tidy-linelength +// Test that the +// `retpoline-external-thunk`, `retpoline-indirect-branches`, `retpoline-indirect-calls` +// target features are (not) emitted when the `retpoline/retpoline-external-thunk` flag is (not) set. + +//@ revisions: disabled enabled_retpoline enabled_retpoline_external_thunk +//@ needs-llvm-components: x86 +//@ compile-flags: --target x86_64-unknown-linux-gnu +//@ [enabled_retpoline] compile-flags: -Zretpoline +//@ [enabled_retpoline_external_thunk] compile-flags: -Zretpoline-external-thunk + +#![crate_type = "lib"] +#![feature(no_core, lang_items)] +#![no_core] + +#[lang = "sized"] +trait Sized {} + +#[no_mangle] +pub fn foo() { + // CHECK: @foo() unnamed_addr #0 + + // disabled-NOT: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+retpoline-external-thunk{{.*}} } + // disabled-NOT: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+retpoline-indirect-branches{{.*}} } + // disabled-NOT: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+retpoline-indirect-calls{{.*}} } + + // enabled_retpoline: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+retpoline-indirect-branches,+retpoline-indirect-calls{{.*}} } + // enabled_retpoline_external_thunk: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+retpoline-external-thunk,+retpoline-indirect-branches,+retpoline-indirect-calls{{.*}} } +} -- cgit 1.4.1-3-g733a5