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Support ISA-specific settings in the --isa command-line option.

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This commit is contained in:
Dan Gohman
2017-10-05 10:05:53 -07:00
parent 73d4bb47c0
commit e4ef2cbf22
1 changed files with 5 additions and 1 deletions
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6
cranelift/src/utils.rs
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@@ -104,10 +104,14 @@ pub fn parse_sets_and_isa(
let mut words = flag_isa.trim().split_whitespace(); let mut words = flag_isa.trim().split_whitespace();
// Look for `isa foo`. // Look for `isa foo`.
if let Some(isa_name) = words.next() { if let Some(isa_name) = words.next() {
let isa_builder = isa::lookup(isa_name).map_err(|err| match err { let mut isa_builder = isa::lookup(isa_name).map_err(|err| match err {
isa::LookupError::Unknown => format!("unknown ISA '{}'", isa_name), isa::LookupError::Unknown => format!("unknown ISA '{}'", isa_name),
isa::LookupError::Unsupported => format!("support for ISA '{}' not enabled", isa_name), isa::LookupError::Unsupported => format!("support for ISA '{}' not enabled", isa_name),
})?; })?;
// Apply the ISA-specific settings to `isa_builder`.
parse_options(words, &mut isa_builder, &Location { line_number: 0 })
.map_err(|err| err.to_string())?;
Ok(OwnedFlagsOrIsa::Isa( Ok(OwnedFlagsOrIsa::Isa(
isa_builder.finish(settings::Flags::new(&flag_builder)), isa_builder.finish(settings::Flags::new(&flag_builder)),
)) ))