mirror of https://github.com/rust-lang/rust
72 lines
1.8 KiB
Rust
72 lines
1.8 KiB
Rust
// Checks that only functions with the compatible instruction_set attributes are inlined.
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//
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// A function is "compatible" when the *callee* has the same attribute or no attribute.
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//
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//@ compile-flags: --target thumbv4t-none-eabi
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//@ needs-llvm-components: arm
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#![crate_type = "lib"]
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#![feature(rustc_attrs)]
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#![feature(no_core, lang_items)]
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#![feature(isa_attribute)]
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#![no_core]
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#[rustc_builtin_macro]
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#[macro_export]
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macro_rules! asm {
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("assembly template",
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$(operands,)*
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$(options($(option),*))?
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) => {
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/* compiler built-in */
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};
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}
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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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#[instruction_set(arm::a32)]
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#[inline]
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fn instruction_set_a32() {}
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#[instruction_set(arm::t32)]
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#[inline]
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fn instruction_set_t32() {}
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#[inline]
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fn instruction_set_default() {}
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#[inline(always)]
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fn inline_always_and_using_inline_asm() {
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unsafe { asm!("/* do nothing */") };
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}
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// EMIT_MIR inline_instruction_set.t32.Inline.diff
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#[instruction_set(arm::t32)]
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pub fn t32() {
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// CHECK-LABEL: fn t32(
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// CHECK-NOT: (inlined instruction_set_a32)
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instruction_set_a32();
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// CHECK: (inlined instruction_set_t32)
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instruction_set_t32();
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// CHECK: (inlined instruction_set_default)
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instruction_set_default();
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// CHECK-NOT: (inlined inline_always_and_using_inline_asm)
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inline_always_and_using_inline_asm();
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}
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// EMIT_MIR inline_instruction_set.default.Inline.diff
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pub fn default() {
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// CHECK-LABEL: fn default(
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// CHECK-NOT: (inlined instruction_set_a32)
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instruction_set_a32();
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// CHECK-NOT: (inlined instruction_set_t32)
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instruction_set_t32();
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// CHECK: (inlined instruction_set_default)
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instruction_set_default();
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// CHECK: (inlined inline_always_and_using_inline_asm)
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inline_always_and_using_inline_asm();
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}
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