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Remove a hack around an LLVM bug

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This has since been fixed in rust-lang/rust#52506
This commit is contained in:
Alex Crichton 2018-08-25 10:45:51 -07:00
parent 8ce7465bba
commit 4f4da747ad
1 changed files with 0 additions and 14 deletions
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14
crates/cli-support/src/lib.rs
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@ -321,7 +321,6 @@ fn extract_programs(module: &mut Module) -> Result<Vec<shared::Program>, Error>
to_remove.push(i);
let mut payload = custom.payload();
let mut added_programs = Vec::new();
while payload.len() > 0 {
let len = ((payload[0] as usize) << 0)
| ((payload[1] as usize) << 8)
@ -330,19 +329,6 @@ fn extract_programs(module: &mut Module) -> Result<Vec<shared::Program>, Error>
let (a, b) = payload[4..].split_at(len as usize);
payload = b;
// Due to a nasty LLVM bug it's currently possible for LLVM to
// duplicate custom section directives in intermediate object files.
// This means that we could see multiple program directives when in
// fact we were originally only meant to see one!
//
// Work around the issue here until the upstream bug,
// https://bugs.llvm.org/show_bug.cgi?id=38184, is hopefully fixed
// via some other means.
if added_programs.iter().any(|p| a == *p) {
continue
}
added_programs.push(a);
let p: shared::ProgramOnlySchema = match serde_json::from_slice(&a) {
Ok(f) => f,
Err(e) => bail!("failed to decode what looked like wasm-bindgen data: {}", e),