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Initialize LLVM only once

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This also appears to fix a race in LLVM that was causing a deadlock on the bots
during the doc-test tests (where we use rustc in parallel).
This commit is contained in:
Alex Crichton
2013-12-27 22:52:22 -08:00
parent 1a9c8cc128
commit b6a7463526
1 changed files with 25 additions and 25 deletions
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src/librustc/back/link.rs
+25 -25
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@@ -111,29 +111,7 @@ pub fn run_passes(sess: Session,
let llmod = trans.module;
let llcx = trans.context;
unsafe {
llvm::LLVMInitializePasses();
// Only initialize the platforms supported by Rust here, because
// using --llvm-root will have multiple platforms that rustllvm
// doesn't actually link to and it's pointless to put target info
// into the registry that Rust can not generate machine code for.
llvm::LLVMInitializeX86TargetInfo();
llvm::LLVMInitializeX86Target();
llvm::LLVMInitializeX86TargetMC();
llvm::LLVMInitializeX86AsmPrinter();
llvm::LLVMInitializeX86AsmParser();
llvm::LLVMInitializeARMTargetInfo();
llvm::LLVMInitializeARMTarget();
llvm::LLVMInitializeARMTargetMC();
llvm::LLVMInitializeARMAsmPrinter();
llvm::LLVMInitializeARMAsmParser();
llvm::LLVMInitializeMipsTargetInfo();
llvm::LLVMInitializeMipsTarget();
llvm::LLVMInitializeMipsTargetMC();
llvm::LLVMInitializeMipsAsmPrinter();
llvm::LLVMInitializeMipsAsmParser();
configure_llvm(sess);
if sess.opts.save_temps {
output.with_extension("no-opt.bc").with_c_str(|buf| {
@@ -141,8 +119,6 @@ pub fn run_passes(sess: Session,
})
}
configure_llvm(sess);
let OptLevel = match sess.opts.optimize {
session::No => lib::llvm::CodeGenLevelNone,
session::Less => lib::llvm::CodeGenLevelLess,
@@ -367,6 +343,30 @@ unsafe fn configure_llvm(sess: Session) {
LOCK.lock();
if !CONFIGURED {
llvm::LLVMInitializePasses();
// Only initialize the platforms supported by Rust here, because
// using --llvm-root will have multiple platforms that rustllvm
// doesn't actually link to and it's pointless to put target info
// into the registry that Rust can not generate machine code for.
llvm::LLVMInitializeX86TargetInfo();
llvm::LLVMInitializeX86Target();
llvm::LLVMInitializeX86TargetMC();
llvm::LLVMInitializeX86AsmPrinter();
llvm::LLVMInitializeX86AsmParser();
llvm::LLVMInitializeARMTargetInfo();
llvm::LLVMInitializeARMTarget();
llvm::LLVMInitializeARMTargetMC();
llvm::LLVMInitializeARMAsmPrinter();
llvm::LLVMInitializeARMAsmParser();
llvm::LLVMInitializeMipsTargetInfo();
llvm::LLVMInitializeMipsTarget();
llvm::LLVMInitializeMipsTargetMC();
llvm::LLVMInitializeMipsAsmPrinter();
llvm::LLVMInitializeMipsAsmParser();
llvm::LLVMRustSetLLVMOptions(llvm_args.len() as c_int,
llvm_args.as_ptr());
CONFIGURED = true;