a1b39276e1
The tests for the SIMD floating-point maximum and minimum operations require particular care because the handling of the NaN values is non-deterministic and may vary between platforms. There is no way to match several NaN values in a test, so the solution is to extract the non-deterministic test cases into a separate file that is subsequently replicated for every backend under test, with adjustments made to the expected results. Copyright (c) 2021, Arm Limited.
47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
//! Test command for testing the postopt pass.
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//!
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//! The resulting function is sent to `filecheck`.
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use crate::subtest::{run_filecheck, Context, SubTest};
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use cranelift_codegen;
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use cranelift_codegen::ir::Function;
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use cranelift_reader::TestCommand;
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use std::borrow::Cow;
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struct TestPostopt;
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pub fn subtest(parsed: &TestCommand) -> anyhow::Result<Box<dyn SubTest>> {
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assert_eq!(parsed.command, "postopt");
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if !parsed.options.is_empty() {
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anyhow::bail!("No options allowed on {}", parsed);
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}
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Ok(Box::new(TestPostopt))
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}
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impl SubTest for TestPostopt {
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fn name(&self) -> &'static str {
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"postopt"
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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 is_mutating(&self) -> bool {
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true
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}
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fn run(&self, func: Cow<Function>, context: &Context) -> anyhow::Result<()> {
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let mut comp_ctx = cranelift_codegen::Context::for_function(func.into_owned());
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let isa = context.isa.expect("postopt needs an ISA");
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comp_ctx.flowgraph();
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comp_ctx
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.postopt(isa)
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.map_err(|e| crate::pretty_anyhow_error(&comp_ctx.func, context.isa, Into::into(e)))?;
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let text = comp_ctx.func.display(isa).to_string();
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run_filecheck(&text, context)
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}
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}
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