Skip to content

Autodiff flags #139700

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Apr 24, 2025
Merged

Autodiff flags #139700

Changes from 1 commit
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
75f86e6
fix LooseTypes flag and PrintMod behaviour, add debug helper
ZuseZ4 Apr 12, 2025
31578dc
fix "could not find source function" error by preventing function mer…
ZuseZ4 Apr 12, 2025
5ea9125
update documentation
ZuseZ4 Apr 12, 2025
f79a992
add tests for merge_function handling
ZuseZ4 Apr 12, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion compiler/rustc_codegen_llvm/src/back/write.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -568,6 +568,7 @@ pub(crate) unsafe fn llvm_optimize(
let print_before_enzyme = config.autodiff.contains(&config::AutoDiff::PrintModBefore);
let print_after_enzyme = config.autodiff.contains(&config::AutoDiff::PrintModAfter);
let print_passes = config.autodiff.contains(&config::AutoDiff::PrintPasses);
let merge_functions;
let unroll_loops;
let vectorize_slp;
let vectorize_loop;
Expand All @@ -576,12 +577,14 @@ pub(crate) unsafe fn llvm_optimize(
// optimizations until after differentiation. Our pipeline is thus: (opt + enzyme), (full opt).
// We therefore have two calls to llvm_optimize, if autodiff is used.
if consider_ad && autodiff_stage != AutodiffStage::PostAD {
merge_functions = false;
unroll_loops = false;
vectorize_slp = false;
vectorize_loop = false;
} else {
unroll_loops =
opt_level != config::OptLevel::Size && opt_level != config::OptLevel::SizeMin;
merge_functions = config.merge_functions;
vectorize_slp = config.vectorize_slp;
vectorize_loop = config.vectorize_loop;
}
Expand Down Expand Up @@ -659,7 +662,7 @@ pub(crate) unsafe fn llvm_optimize(
thin_lto_buffer,
config.emit_thin_lto,
config.emit_thin_lto_summary,
config.merge_functions,
merge_functions,
unroll_loops,
vectorize_slp,
vectorize_loop,
Expand Down