94 lines
3 KiB
Rust
94 lines
3 KiB
Rust
// Test that loads into registers x16..=x31 are never generated for riscv32{e,em,emc} targets
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//
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//@ build-fail
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//@ revisions: riscv32e riscv32em riscv32emc
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//
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//@ compile-flags: --crate-type=rlib
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//@ [riscv32e] needs-llvm-components: riscv
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//@ [riscv32e] compile-flags: --target=riscv32e-unknown-none-elf
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//@ [riscv32em] needs-llvm-components: riscv
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//@ [riscv32em] compile-flags: --target=riscv32em-unknown-none-elf
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//@ [riscv32emc] needs-llvm-components: riscv
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//@ [riscv32emc] compile-flags: --target=riscv32emc-unknown-none-elf
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// Unlike bad-reg.rs, this tests if the assembler can reject invalid registers
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// usage in assembly code.
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#![no_core]
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#![feature(no_core, lang_items, rustc_attrs)]
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#[rustc_builtin_macro]
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macro_rules! asm {
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() => {};
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}
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#[lang = "sized"]
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trait Sized {}
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// Verify registers x1..=x15 are addressable on riscv32e, but registers x16..=x31 are not
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#[no_mangle]
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pub unsafe fn registers() {
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asm!("li x1, 0");
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asm!("li x2, 0");
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asm!("li x3, 0");
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asm!("li x4, 0");
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asm!("li x5, 0");
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asm!("li x6, 0");
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asm!("li x7, 0");
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asm!("li x8, 0");
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asm!("li x9, 0");
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asm!("li x10, 0");
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asm!("li x11, 0");
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asm!("li x12, 0");
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asm!("li x13, 0");
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asm!("li x14, 0");
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asm!("li x15, 0");
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asm!("li x16, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x17, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x18, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x19, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x20, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x21, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x22, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x23, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x24, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x25, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x26, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x27, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x28, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x29, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x30, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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asm!("li x31, 0");
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//~^ ERROR invalid operand for instruction
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//~| NOTE instantiated into assembly here
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}
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