mirror of
https://github.com/rust-lang/rust.git
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88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
// revisions: x64 A64 ppc64le
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// assembly-output: emit-asm
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// [x64] compile-flags: --target x86_64-unknown-linux-gnu -Crelocation-model=static
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// [x64] needs-llvm-components: x86
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// [A64] compile-flags: --target aarch64-unknown-linux-gnu -Crelocation-model=static
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// [A64] needs-llvm-components: aarch64
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// [ppc64le] compile-flags: --target powerpc64le-unknown-linux-gnu -Crelocation-model=static
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// [ppc64le] needs-llvm-components: powerpc
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// ignore-debug: alignment checks insert panics that we don't have a lang item for
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#![feature(no_core, lang_items)]
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#![no_core]
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#![crate_type="rlib"]
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#[lang="sized"]
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trait Sized {}
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#[lang="copy"]
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trait Copy {}
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#[lang="sync"]
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trait Sync {}
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#[lang = "drop_in_place"]
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fn drop_in_place<T>(_: *mut T) {}
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impl Copy for u8 {}
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impl Sync for u8 {}
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#[no_mangle]
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pub static PIERIS: u8 = 42;
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extern "C" {
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static EXOCHORDA: *mut u8;
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fn chaenomeles();
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}
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// CHECK-LABEL: banana:
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// On the next line LLVM 14 produces a `movb`, whereas LLVM 15+ produces a `movzbl`.
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// x64: {{movb|movzbl}} chaenomeles{{(\(%[a-z0-9]+\))?}}, %{{[a-z0-9]+}}
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// A64: adrp [[REG:[a-z0-9]+]], chaenomeles
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// A64-NEXT: ldrb {{[a-z0-9]+}}, {{\[}}[[REG]], :lo12:chaenomeles]
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#[no_mangle]
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pub fn banana() -> u8 {
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unsafe {
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*(chaenomeles as *mut u8)
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}
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}
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// CHECK-LABEL: peach:
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// x64: {{movb|movzbl}} banana{{(\(%[a-z0-9]+\))?}}, %{{[a-z0-9]+}}
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// A64: adrp [[REG2:[a-z0-9]+]], banana
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// A64-NEXT: ldrb {{[a-z0-9]+}}, {{\[}}[[REG2]], :lo12:banana]
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#[no_mangle]
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pub fn peach() -> u8 {
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unsafe {
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*(banana as *mut u8)
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}
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}
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// CHECK-LABEL: mango:
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// x64: movq EXOCHORDA{{(\(%[a-z0-9]+\))?}}, %[[REG:[a-z0-9]+]]
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// x64-NEXT: {{movb|movzbl}} (%[[REG]]), %{{[a-z0-9]+}}
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// A64: adrp [[REG2:[a-z0-9]+]], EXOCHORDA
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// A64-NEXT: ldr {{[a-z0-9]+}}, {{\[}}[[REG2]], :lo12:EXOCHORDA]
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#[no_mangle]
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pub fn mango() -> u8 {
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unsafe {
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*EXOCHORDA
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}
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}
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// CHECK-LABEL: orange:
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// x64: mov{{l|absq}} $PIERIS, %{{[a-z0-9]+}}
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// A64: adrp [[REG2:[a-z0-9]+]], PIERIS
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// A64-NEXT: add {{[a-z0-9]+}}, [[REG2]], :lo12:PIERIS
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#[no_mangle]
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pub fn orange() -> &'static u8 {
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&PIERIS
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}
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// For ppc64 we need to make sure to generate TOC entries even with the static relocation model
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// ppc64le: .tc chaenomeles[TC],chaenomeles
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// ppc64le: .tc banana[TC],banana
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// ppc64le: .tc EXOCHORDA[TC],EXOCHORDA
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// ppc64le: .tc PIERIS[TC],PIERIS
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