From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../codegen/unwind-abis/fastcall-unwind-abi.rs | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/test/codegen/unwind-abis/fastcall-unwind-abi.rs (limited to 'src/test/codegen/unwind-abis/fastcall-unwind-abi.rs') diff --git a/src/test/codegen/unwind-abis/fastcall-unwind-abi.rs b/src/test/codegen/unwind-abis/fastcall-unwind-abi.rs new file mode 100644 index 000000000..ed23235eb --- /dev/null +++ b/src/test/codegen/unwind-abis/fastcall-unwind-abi.rs @@ -0,0 +1,31 @@ +// needs-llvm-components: x86 +// compile-flags: --target=i686-pc-windows-msvc --crate-type=rlib -Cno-prepopulate-passes +#![no_core] +#![feature(no_core, lang_items, c_unwind)] +#[lang="sized"] +trait Sized { } + +// Test that `nounwind` atributes are correctly applied to exported `fastcall` and +// `fastcall-unwind` extern functions. `fastcall-unwind` functions MUST NOT have this attribute. We +// disable optimizations above to prevent LLVM from inferring the attribute. + +// CHECK: @rust_item_that_cannot_unwind() unnamed_addr #0 { +#[no_mangle] +pub extern "fastcall" fn rust_item_that_cannot_unwind() { +} + +// CHECK: @rust_item_that_can_unwind() unnamed_addr #1 { +#[no_mangle] +pub extern "fastcall-unwind" fn rust_item_that_can_unwind() { +} + +// Now, make some assertions that the LLVM attributes for these functions are correct. First, make +// sure that the first item is correctly marked with the `nounwind` attribute: +// +// CHECK: attributes #0 = { {{.*}}nounwind{{.*}} } +// +// Next, let's assert that the second item, which CAN unwind, does not have this attribute. +// +// CHECK: attributes #1 = { +// CHECK-NOT: nounwind +// CHECK: } -- cgit v1.2.3