Rollup merge of #73776 - aszenz:refactor_mir_module, r=wesleywiser

[rust.git] / Cargo.toml

diff --git a/Cargo.toml b/Cargo.toml
index f2177a99a9b88b09672694ee4a2ac60ab2293d65..be15e50e2bcca07d92d6615542914b4c0ba112f7 100644 (file)
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,14 +33,27 @@ exclude = [
   "obj",
 ]
 
-# These options are controlled from our rustc wrapper script, so turn them off
-# here and have them controlled elsewhere.
-[profile.dev]
-debug = false
-debug-assertions = false
-[profile.test]
-debug = false
+[profile.release.package.compiler_builtins]
+# The compiler-builtins crate cannot reference libcore, and it's own CI will
+# verify that this is the case. This requires, however, that the crate is built
+# without overflow checks and debug assertions. Forcefully disable debug
+# assertions and overflow checks here which should ensure that even if these
+# assertions are enabled for libstd we won't enable then for compiler_builtins
+# which should ensure we still link everything correctly.
 debug-assertions = false
+overflow-checks = false
+
+# For compiler-builtins we always use a high number of codegen units.
+# The goal here is to place every single intrinsic into its own object
+# file to avoid symbol clashes with the system libgcc if possible. Note
+# that this number doesn't actually produce this many object files, we
+# just don't create more than this number of object files.
+#
+# It's a bit of a bummer that we have to pass this here, unfortunately.
+# Ideally this would be specified through an env var to Cargo so Cargo
+# knows how many CGUs are for this specific crate, but for now
+# per-crate configuration isn't specifiable in the environment.
+codegen-units = 10000
 
 # We want the RLS to use the version of Cargo that we've got vendored in this
 # repository to ensure that the same exact version of Cargo is used by both the