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Add target to use LLVM wasm backend

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The new target is wasm32-experimental-emscripten. Adds a new
configuration option to opt in to building experimental LLVM backends
such as the WebAssembly backend. The target name was chosen to be
similar to the existing wasm32-unknown-emscripten target so that the
build and tests would work with minimal other code changes. When/if the
new target replaces the old target, simply renaming it should just work.
This commit is contained in:
Thomas Lively 2017-06-16 15:43:43 -07:00
parent fe7227f6c8
commit a1981a64a2
7 changed files with 77 additions and 1 deletions
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3
src/bootstrap/config.rs
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@ -60,6 +60,7 @@ pub struct Config {
pub llvm_static_stdcpp: bool,
pub llvm_link_shared: bool,
pub llvm_targets: Option<String>,
pub llvm_experimental_targets: Option<String>,
pub llvm_link_jobs: Option<u32>,
pub llvm_clean_rebuild: bool,
@ -189,6 +190,7 @@ struct Llvm {
version_check: Option<bool>,
static_libstdcpp: Option<bool>,
targets: Option<String>,
experimental_targets: Option<String>,
link_jobs: Option<u32>,
clean_rebuild: Option<bool>,
}
@ -350,6 +352,7 @@ impl Config {
set(&mut config.llvm_static_stdcpp, llvm.static_libstdcpp);
set(&mut config.llvm_clean_rebuild, llvm.clean_rebuild);
config.llvm_targets = llvm.targets.clone();
config.llvm_experimental_targets = llvm.experimental_targets.clone();
config.llvm_link_jobs = llvm.link_jobs;
}