From c047ee700dbc353f544afe5cd4b4c20ceeabe3da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Test=C3=A9?= <david.teste@zama.ai>
Date: Fri, 16 Jan 2026 11:09:28 +0100
Subject: [PATCH] WIP: try inline never on hlapi bench functions

---
 Makefile                                       | 2 +-
 tfhe-benchmark/benches/high_level_api/bench.rs | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c1856c3d9..e7438894a 100644
--- a/Makefile
+++ b/Makefile
@@ -1639,7 +1639,7 @@ bench_hlapi: install_rs_check_toolchain
 	RUSTFLAGS="$(RUSTFLAGS)" __TFHE_RS_BENCH_BIT_SIZES_SET=$(BIT_SIZES_SET) \
 	cargo $(CARGO_RS_CHECK_TOOLCHAIN) bench \
 	--bench hlapi \
-	--features=integer,internal-keycache,pbs-stats -p tfhe-benchmark --
+	--features=integer,internal-keycache,pbs-stats -p tfhe-benchmark -- '::add|::mul|::bitand'
 
 .PHONY: bench_hlapi_gpu # Run benchmarks for integer operations on GPU
 bench_hlapi_gpu: install_rs_check_toolchain
diff --git a/tfhe-benchmark/benches/high_level_api/bench.rs b/tfhe-benchmark/benches/high_level_api/bench.rs
index 5355e5cea..d673e2914 100644
--- a/tfhe-benchmark/benches/high_level_api/bench.rs
+++ b/tfhe-benchmark/benches/high_level_api/bench.rs
@@ -330,6 +330,7 @@ where
     }
 }
 
+#[inline(never)]
 fn bench_fhe_type_op<FheType, Op>(
     c: &mut Criterion,
     client_key: &ClientKey,
@@ -383,6 +384,7 @@ fn bench_fhe_type_op<FheType, Op>(
 macro_rules! bench_type_binary_op {
     (type_name: $fhe_type:ident, right_type_name: $fhe_right_type:ident,left_type: $left_type:ty, right_type: $right_type:ty, display_name: $display_name:literal, operation: $op:ident) => {
         ::paste::paste! {
+            #[inline(never)]
             fn [<bench_ $fhe_type:snake _ $op>](c: &mut Criterion, cks: &ClientKey) {
                 bench_fhe_type_op(
                     c,
@@ -413,6 +415,7 @@ macro_rules! bench_type_binary_scalar_op {
         rng: $rng_fn:expr
     ) => {
         ::paste::paste! {
+            #[inline(never)]
             fn [<bench_ $fhe_type:snake _scalar_ $op>](c: &mut Criterion, cks: &ClientKey) {
                 bench_fhe_type_op(
                     c,
@@ -435,6 +438,7 @@ macro_rules! bench_type_binary_scalar_op {
 macro_rules! bench_type_unary_op {
     (type_name: $fhe_type:ident, integer_type: $integer_type:ty, display_name: $display_name:literal, operation: $op:ident) => {
         ::paste::paste! {
+            #[inline(never)]
             fn [<bench_ $fhe_type:snake _ $op>](c: &mut Criterion, cks: &ClientKey) {
                 bench_fhe_type_op(
                     c,
@@ -456,6 +460,7 @@ macro_rules! bench_type_unary_op {
 macro_rules! bench_type_ternary_op {
     (type_name: $fhe_type:ident, integer_type: $integer_type:ty, display_name: $display_name:literal, operation: $op:ident) => {
         ::paste::paste! {
+            #[inline(never)]
             fn [<bench_ $fhe_type:snake _ $op>](c: &mut Criterion, cks: &ClientKey) {
                 bench_fhe_type_op(
                     c,
@@ -477,6 +482,7 @@ macro_rules! bench_type_ternary_op {
 macro_rules! bench_type_array_op {
     (type_name: $fhe_type:ident, integer_type: $integer_type:ty, display_name: $display_name:literal, operation: $op:ident) => {
         ::paste::paste! {
+            #[inline(never)]
             fn [<bench_ $fhe_type:snake _ $op>](c: &mut Criterion, cks: &ClientKey) {
                 bench_fhe_type_op(
                     c,