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Force single-threaded compilation if LLVM is not thread-safe

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This commit is contained in:
David Mak 2023-10-13 11:28:30 +08:00
parent 950f431483
commit 7fc2a30c14
2 changed files with 16 additions and 6 deletions
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4
nac3artiq/src/lib.rs
View File

@ -9,6 +9,7 @@ use inkwell::{
memory_buffer::MemoryBuffer,
module::{Linkage, Module},
passes::PassBuilderOptions,
support::is_multithreaded,
targets::*,
OptimizationLevel,
};
@ -582,7 +583,8 @@ impl Nac3 {
membuffer.lock().push(buffer);
})));
let size_t = if self.isa == Isa::Host { 64 } else { 32 };
let thread_names: Vec<String> = (0..4).map(|_| "main".to_string()).collect();
let num_threads = if is_multithreaded() { 4 } else { 1 };
let thread_names: Vec<String> = (0..num_threads).map(|_| "main".to_string()).collect();
let threads: Vec<_> = thread_names
.iter()
.map(|s| Box::new(ArtiqCodeGenerator::new(s.to_string(), size_t, self.time_fns)))

10
nac3standalone/src/main.rs
View File

@ -2,6 +2,7 @@ use clap::Parser;
use inkwell::{
memory_buffer::MemoryBuffer,
passes::PassBuilderOptions,
support::is_multithreaded,
targets::*,
OptimizationLevel,
};
@ -210,12 +211,19 @@ fn main() {
.map(|arg| if arg == "native" { host_target_machine.cpu.clone() } else { arg })
.unwrap_or_default();
let target_features = target_features.unwrap_or_default();
let threads = if threads == 0 {
let threads = if is_multithreaded() {
if threads == 0 {
std::thread::available_parallelism()
.map(|threads| threads.get() as u32)
.unwrap_or(1u32)
} else {
threads
}
} else {
if threads != 1 {
println!("Warning: Number of threads specified in command-line but multithreading is disabled in LLVM at build time! Defaulting to single-threaded compilation")
}
1
};
let opt_level = match opt_level {
0 => OptimizationLevel::None,