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Diffstat (limited to 'src/test/codegen/c-variadic.rs')
-rw-r--r-- | src/test/codegen/c-variadic.rs | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/src/test/codegen/c-variadic.rs b/src/test/codegen/c-variadic.rs deleted file mode 100644 index a5be56c47..000000000 --- a/src/test/codegen/c-variadic.rs +++ /dev/null @@ -1,72 +0,0 @@ -// ignore-wasm32-bare compiled with panic=abort by default -// compile-flags: -C no-prepopulate-passes -// - -#![crate_type = "lib"] -#![feature(c_variadic)] -#![feature(c_unwind)] -#![no_std] -use core::ffi::VaList; - -extern "C" { - fn foreign_c_variadic_0(_: i32, ...); - fn foreign_c_variadic_1(_: VaList, ...); -} - -pub unsafe extern "C" fn use_foreign_c_variadic_0() { - // Ensure that we correctly call foreign C-variadic functions. - // CHECK: call void (i32, ...) @foreign_c_variadic_0([[PARAM:i32( signext)?]] 0) - foreign_c_variadic_0(0); - // CHECK: call void (i32, ...) @foreign_c_variadic_0([[PARAM]] 0, [[PARAM]] 42) - foreign_c_variadic_0(0, 42i32); - // CHECK: call void (i32, ...) @foreign_c_variadic_0([[PARAM]] 0, [[PARAM]] 42, [[PARAM]] 1024) - foreign_c_variadic_0(0, 42i32, 1024i32); - // CHECK: call void (i32, ...) @foreign_c_variadic_0([[PARAM]] 0, [[PARAM]] 42, [[PARAM]] 1024, [[PARAM]] 0) - foreign_c_variadic_0(0, 42i32, 1024i32, 0i32); -} - -// Ensure that we do not remove the `va_list` passed to the foreign function when -// removing the "spoofed" `VaListImpl` that is used by Rust defined C-variadics. -pub unsafe extern "C" fn use_foreign_c_variadic_1_0(ap: VaList) { - // CHECK: call void ({{.*}}, ...) @foreign_c_variadic_1({{.*}} %ap) - foreign_c_variadic_1(ap); -} - -pub unsafe extern "C" fn use_foreign_c_variadic_1_1(ap: VaList) { - // CHECK: call void ({{.*}}, ...) @foreign_c_variadic_1({{.*}} %ap, [[PARAM]] 42) - foreign_c_variadic_1(ap, 42i32); -} -pub unsafe extern "C" fn use_foreign_c_variadic_1_2(ap: VaList) { - // CHECK: call void ({{.*}}, ...) @foreign_c_variadic_1({{.*}} %ap, [[PARAM]] 2, [[PARAM]] 42) - foreign_c_variadic_1(ap, 2i32, 42i32); -} - -pub unsafe extern "C" fn use_foreign_c_variadic_1_3(ap: VaList) { - // CHECK: call void ({{.*}}, ...) @foreign_c_variadic_1({{.*}} %ap, [[PARAM]] 2, [[PARAM]] 42, [[PARAM]] 0) - foreign_c_variadic_1(ap, 2i32, 42i32, 0i32); -} - -// Ensure that `va_start` and `va_end` are properly injected. -#[no_mangle] -pub unsafe extern "C" fn c_variadic(n: i32, mut ap: ...) -> i32 { - // CHECK: call void @llvm.va_start - let mut sum = 0; - for _ in 0..n { - sum += ap.arg::<i32>(); - } - sum - // CHECK: call void @llvm.va_end -} - -// Ensure that we generate the correct `call` signature when calling a Rust -// defined C-variadic. -pub unsafe fn test_c_variadic_call() { - // CHECK: call [[RET:(signext )?i32]] (i32, ...) @c_variadic([[PARAM]] 0) - c_variadic(0); - // CHECK: call [[RET]] (i32, ...) @c_variadic([[PARAM]] 0, [[PARAM]] 42) - c_variadic(0, 42i32); - // CHECK: call [[RET]] (i32, ...) @c_variadic([[PARAM]] 0, [[PARAM]] 42, [[PARAM]] 1024) - c_variadic(0, 42i32, 1024i32); - // CHECK: call [[RET]] (i32, ...) @c_variadic([[PARAM]] 0, [[PARAM]] 42, [[PARAM]] 1024, [[PARAM]] 0) - c_variadic(0, 42i32, 1024i32, 0i32); -} |