diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
index 5d2df6ddfc912..077c5184c0c97 100644
--- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
@@ -712,7 +712,7 @@ extern "C" LLVMRustResult LLVMRustOptimize(
     PGOOpt = PGOOptions(PGOGenPath, "", "", "", FS, PGOOptions::IRInstr,
                         PGOOptions::NoCSAction,
 #if LLVM_VERSION_GE(19, 0)
-                        PGOOptions::ColdFuncOpt::Default,
+                        PGOOptions::ColdFuncOpt::MinSize,
 #endif
                         DebugInfoForProfiling);
   } else if (PGOUsePath) {
@@ -720,7 +720,7 @@ extern "C" LLVMRustResult LLVMRustOptimize(
     PGOOpt = PGOOptions(PGOUsePath, "", "", "", FS, PGOOptions::IRUse,
                         PGOOptions::NoCSAction,
 #if LLVM_VERSION_GE(19, 0)
-                        PGOOptions::ColdFuncOpt::Default,
+                        PGOOptions::ColdFuncOpt::MinSize,
 #endif
                         DebugInfoForProfiling);
   } else if (PGOSampleUsePath) {
diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index 9ddcde7eb2cfc..6df5a186c6c16 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -1113,6 +1113,7 @@ pub fn rustc_cargo(
             // Apparently necessary to avoid overflowing the counters during
             // a Cargo build profile
             cargo.rustflag("-Cllvm-args=-vp-counters-per-site=4");
+            cargo.rustflag("-Cllvm-args=-enable-pgo-force-function-attrs");
             true
         } else {
             false
@@ -1120,6 +1121,7 @@ pub fn rustc_cargo(
     } else if let Some(path) = &builder.config.rust_profile_use {
         if compiler.stage == 1 {
             cargo.rustflag(&format!("-Cprofile-use={path}"));
+            cargo.rustflag("-Cllvm-args=-enable-pgo-force-function-attrs");
             if builder.is_verbose() {
                 cargo.rustflag("-Cllvm-args=-pgo-warn-missing-function");
             }