Use cdsort for reordering functions with BOLT

Author: Kobzol

src/ci/docker/host-x86_64/dist-x86_64-linux/build-clang.sh

@@ -4,7 +4,8 @@ set -ex
 
 source shared.sh
 
-LLVM=llvmorg-17.0.4
+#LLVM=llvmorg-17.0.4
+LLVM=f5e50b21da0cb543064b2d0b9304ce0b368cf2bb
 
 mkdir llvm-project
 cd llvm-project

src/tools/opt-dist/src/bolt.rs

@@ -62,7 +62,7 @@ pub fn bolt_optimize(path: &Utf8Path, profile: &BoltProfile) -> anyhow::Result<(
         // Reorder basic blocks within functions
         .arg("-reorder-blocks=ext-tsp")
         // Reorder functions within the binary
-        .arg("-reorder-functions=hfsort+")
+        .arg("-reorder-functions=cdsort")
         // Split function code into hot and code regions
         .arg("-split-functions")
         // Split as many basic blocks as possible