mirror of https://github.com/rust-lang/rust.git
117 lines
3.4 KiB
Rust
117 lines
3.4 KiB
Rust
//@ revisions: i686-linux i686-freebsd x64-linux x64-apple wasm32
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//@ compile-flags: -O -C no-prepopulate-passes
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//@[i686-linux] compile-flags: --target i686-unknown-linux-gnu
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//@[i686-linux] needs-llvm-components: x86
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//@[i686-freebsd] compile-flags: --target i686-unknown-freebsd
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//@[i686-freebsd] needs-llvm-components: x86
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//@[x64-linux] compile-flags: --target x86_64-unknown-linux-gnu
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//@[x64-linux] needs-llvm-components: x86
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//@[x64-apple] compile-flags: --target x86_64-apple-darwin
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//@[x64-apple] needs-llvm-components: x86
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//@[wasm32] compile-flags: --target wasm32-wasi
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//@[wasm32] needs-llvm-components: webassembly
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// See ./transparent.rs
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// Some platforms pass large aggregates using immediate arrays in LLVMIR
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// Other platforms pass large aggregates using struct pointer in LLVMIR
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// This covers the "struct pointer" case.
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#![feature(no_core, lang_items, transparent_unions)]
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#![crate_type = "lib"]
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#![no_std]
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#![no_core]
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#[lang = "sized"]
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trait Sized {}
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#[lang = "freeze"]
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trait Freeze {}
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#[lang = "copy"]
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trait Copy {}
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impl Copy for [u32; 16] {}
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impl Copy for BigS {}
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impl Copy for BigU {}
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#[repr(C)]
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pub struct BigS([u32; 16]);
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#[repr(transparent)]
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pub struct TsBigS(BigS);
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#[repr(transparent)]
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pub union TuBigS {
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field: BigS,
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}
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#[repr(transparent)]
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pub enum TeBigS {
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Variant(BigS),
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}
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// CHECK: define{{.*}}void @test_BigS(ptr [[BIGS_RET_ATTRS1:.*]] sret([64 x i8]) [[BIGS_RET_ATTRS2:.*]], ptr [[BIGS_ARG_ATTRS1:.*]] byval([64 x i8]) [[BIGS_ARG_ATTRS2:.*]])
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#[no_mangle]
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pub extern "C" fn test_BigS(_: BigS) -> BigS {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TsBigS(ptr [[BIGS_RET_ATTRS1]] sret([64 x i8]) [[BIGS_RET_ATTRS2]], ptr [[BIGS_ARG_ATTRS1]] byval([64 x i8]) [[BIGS_ARG_ATTRS2:.*]])
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#[no_mangle]
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pub extern "C" fn test_TsBigS(_: TsBigS) -> TsBigS {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TuBigS(ptr [[BIGS_RET_ATTRS1]] sret([64 x i8]) [[BIGS_RET_ATTRS2]], ptr [[BIGS_ARG_ATTRS1]] byval([64 x i8]) [[BIGS_ARG_ATTRS2:.*]])
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#[no_mangle]
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pub extern "C" fn test_TuBigS(_: TuBigS) -> TuBigS {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TeBigS(ptr [[BIGS_RET_ATTRS1]] sret([64 x i8]) [[BIGS_RET_ATTRS2]], ptr [[BIGS_ARG_ATTRS1]] byval([64 x i8]) [[BIGS_ARG_ATTRS2]])
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#[no_mangle]
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pub extern "C" fn test_TeBigS(_: TeBigS) -> TeBigS {
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loop {}
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}
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#[repr(C)]
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pub union BigU {
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foo: [u32; 16],
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}
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#[repr(transparent)]
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pub struct TsBigU(BigU);
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#[repr(transparent)]
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pub union TuBigU {
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field: BigU,
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}
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#[repr(transparent)]
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pub enum TeBigU {
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Variant(BigU),
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}
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// CHECK: define{{.*}}void @test_BigU(ptr [[BIGU_RET_ATTRS1:.*]] sret([64 x i8]) [[BIGU_RET_ATTRS2:.*]], ptr [[BIGU_ARG_ATTRS1:.*]] byval([64 x i8]) [[BIGU_ARG_ATTRS2:.*]])
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#[no_mangle]
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pub extern "C" fn test_BigU(_: BigU) -> BigU {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TsBigU(ptr [[BIGU_RET_ATTRS1:.*]] sret([64 x i8]) [[BIGU_RET_ATTRS2:.*]], ptr [[BIGU_ARG_ATTRS1]] byval([64 x i8]) [[BIGU_ARG_ATTRS2]])
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#[no_mangle]
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pub extern "C" fn test_TsBigU(_: TsBigU) -> TsBigU {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TuBigU(ptr [[BIGU_RET_ATTRS1]] sret([64 x i8]) [[BIGU_RET_ATTRS2:.*]], ptr [[BIGU_ARG_ATTRS1]] byval([64 x i8]) [[BIGU_ARG_ATTRS2]])
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#[no_mangle]
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pub extern "C" fn test_TuBigU(_: TuBigU) -> TuBigU {
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loop {}
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}
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// CHECK: define{{.*}}void @test_TeBigU(ptr [[BIGU_RET_ATTRS1]] sret([64 x i8]) [[BIGU_RET_ATTRS2:.*]], ptr [[BIGU_ARG_ATTRS1]] byval([64 x i8]) [[BIGU_ARG_ATTRS2]])
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#[no_mangle]
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pub extern "C" fn test_TeBigU(_: TeBigU) -> TeBigU {
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loop {}
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}
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