48cf2c2f50
- Undo temporary changes to default features (`all-arch`) and a
signal-handler test.
- Remove `SIGTRAP` handler: no longer needed now that we've found an
"undefined opcode" option on ARM64.
- Rename pp.rs to pretty_print.rs in machinst/.
- Only use empty stack-probe on non-x86. As per a comment in
rust-lang/compiler-builtins [1], LLVM only supports stack probes on
x86 and x86-64. Thus, on any other CPU architecture, we cannot refer
to `__rust_probestack`, because it does not exist.
- Rename arm64 to aarch64.
- Use `target` directive in vcode filetests.
- Run the flags verifier, but without encinfo, when using new backends.
- Clean up warning overrides.
- Fix up use of casts: use u32::from(x) and siblings when possible,
u32::try_from(x).unwrap() when not, to avoid silent truncation.
- Take immutable `Function` borrows as input; we don't actually
mutate the input IR.
- Lots of other miscellaneous cleanups.
[1] cae3e6ea23/src/probestack.rs (L39)
68 lines
1.8 KiB
Rust
68 lines
1.8 KiB
Rust
use crate::subtest::{run_filecheck, Context, SubTest, SubtestResult};
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use cranelift_codegen::ir::Function;
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use cranelift_codegen::isa::lookup;
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use cranelift_codegen::settings;
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use cranelift_codegen::Context as CodegenContext;
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use cranelift_reader::{TestCommand, TestOption};
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use log::info;
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use std::borrow::Cow;
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use std::string::String;
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struct TestVCode {
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arch: String,
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}
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pub fn subtest(parsed: &TestCommand) -> SubtestResult<Box<dyn SubTest>> {
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assert_eq!(parsed.command, "vcode");
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let mut arch = "arm64".to_string();
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for option in &parsed.options {
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match option {
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TestOption::Value(k, v) if k == &"arch" => {
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arch = v.to_string();
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}
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_ => {}
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}
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}
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Ok(Box::new(TestVCode { arch }))
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}
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impl SubTest for TestVCode {
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fn name(&self) -> &'static str {
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"vcode"
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}
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fn is_mutating(&self) -> bool {
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true
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}
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fn needs_isa(&self) -> bool {
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true
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}
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fn run(&self, func: Cow<Function>, context: &Context) -> SubtestResult<()> {
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let triple = context.isa.unwrap().triple().clone();
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let func = func.into_owned();
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let mut isa = lookup(triple)
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.map_err(|_| format!("Could not look up backend for arch '{}'", self.arch))?
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.finish(settings::Flags::new(settings::builder()));
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let mut codectx = CodegenContext::for_function(func);
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codectx.set_disasm(true);
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codectx
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.compile(&mut *isa)
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.map_err(|e| format!("Could not compile with arch '{}': {:?}", self.arch, e))?;
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let result = codectx.mach_compile_result.take().unwrap();
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let text = result.disasm.unwrap();
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info!("text input to filecheck is:\n{}\n", text);
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run_filecheck(&text, context)
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}
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}
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