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Add a wasmtime settings command to print Cranelift settings.

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This commit adds the `wasmtime settings` command to print out available
Cranelift settings for a target (defaults to the host).

The compile command has been updated to remove the Cranelift ISA options in
favor of encouraging users to use `wasmtime settings` to discover what settings
are available.  This will reduce the maintenance cost for syncing the compile
command with Cranelift ISA flags.
This commit is contained in:
Peter Huene
2021-03-31 22:44:13 -07:00
parent a474524d3b
commit abf3bf29f9
16 changed files with 478 additions and 312 deletions
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5
cranelift/codegen/meta/src/isa/arm64/mod.rs
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@@ -8,11 +8,8 @@ use crate::cdsl::settings::{SettingGroup, SettingGroupBuilder};
use crate::shared::Definitions as SharedDefinitions;
fn define_settings(_shared: &SettingGroup) -> SettingGroup {
// Note: Wasmtime's `compile` command exposes these settings as CLI options
// If the settings change, please update src/commands/compile.rs to match.
let mut setting = SettingGroupBuilder::new("arm64");
let has_lse = setting.add_bool("has_lse", "Large System Extensions", false);
let has_lse = setting.add_bool("has_lse", "Has Large System Extensions support.", "", false);
setting.add_predicate("use_lse", predicate!(has_lse));
setting.build()