From 18ef7450f3675a2ec3aaba54b6b1ea8b215003cb Mon Sep 17 00:00:00 2001
From: Alexander Frick <Alex313031@gmail.com>
Date: Fri, 28 Apr 2023 09:43:42 -0500
Subject: [PATCH]  add experimental opts

---
 src/build/config/compiler/BUILD.gn | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/build/config/compiler/BUILD.gn b/src/build/config/compiler/BUILD.gn
index 24235ac1f..5604a5029 100644
--- a/src/build/config/compiler/BUILD.gn
+++ b/src/build/config/compiler/BUILD.gn
@@ -2057,6 +2057,7 @@ if (is_win) {
   }
 
   common_optimize_on_cflags += [
+    "-Xclang", "-freroll-loops",
     "-mllvm", "-extra-vectorizer-passes",
     "-mllvm", "-enable-cond-stores-vec",
     "-mllvm", "-slp-vectorize-hor-store",
@@ -2070,6 +2071,7 @@ if (is_win) {
     "-mllvm", "-enable-unroll-and-jam",
     "-mllvm", "-enable-loop-flatten",
     "-mllvm", "-interleave-small-loop-scalar-reduction",
+    "-mllvm", "-unroll-runtime",
     "-mllvm", "-unroll-runtime-multi-exit",
     "-mllvm", "-aggressive-ext-opt",
     "-mllvm", "-enable-interleaved-mem-accesses",
@@ -2084,6 +2086,7 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
+    "-mllvm:-freroll-loops",
     "-mllvm:-extra-vectorizer-passes",
     "-mllvm:-enable-cond-stores-vec",
     "-mllvm:-slp-vectorize-hor-store",
@@ -2097,6 +2100,7 @@ if (is_win) {
     "-mllvm:-enable-unroll-and-jam",
     "-mllvm:-enable-loop-flatten",
     "-mllvm:-interleave-small-loop-scalar-reduction",
+    "-mllvm:-unroll-runtime",
     "-mllvm:-unroll-runtime-multi-exit",
     "-mllvm:-aggressive-ext-opt",
     "-mllvm:-enable-interleaved-mem-accesses",
@@ -2109,6 +2113,7 @@ if (is_win) {
     "-mllvm:-polly",
     "-mllvm:-polly-detect-profitability-min-per-loop-insts=40",
     "-mllvm:-polly-invariant-load-hoisting",
+    "-mllvm:-polly-run-dce",
     "-mllvm:-polly-vectorizer=stripmine",
     ]
   }
@@ -2130,6 +2135,7 @@ if (is_win) {
   common_optimize_on_ldflags = []
 
   common_optimize_on_cflags += [
+    "-freroll-loops",
     "-mllvm", "-extra-vectorizer-passes",
     "-mllvm", "-enable-cond-stores-vec",
     "-mllvm", "-slp-vectorize-hor-store",
@@ -2143,6 +2149,7 @@ if (is_win) {
     "-mllvm", "-enable-unroll-and-jam",
     "-mllvm", "-enable-loop-flatten",
     "-mllvm", "-interleave-small-loop-scalar-reduction",
+    "-mllvm", "-unroll-runtime",
     "-mllvm", "-unroll-runtime-multi-exit",
     "-mllvm", "-aggressive-ext-opt",
     "-mllvm", "-enable-interleaved-mem-accesses",
@@ -2152,6 +2159,7 @@ if (is_win) {
   ]
 
   common_optimize_on_ldflags += [
+    "-freroll-loops",
     "-Wl,-mllvm,-extra-vectorizer-passes",
     "-Wl,-mllvm,-enable-cond-stores-vec",
     "-Wl,-mllvm,-slp-vectorize-hor-store",
@@ -2165,6 +2173,7 @@ if (is_win) {
     "-Wl,-mllvm,-enable-unroll-and-jam",
     "-Wl,-mllvm,-enable-loop-flatten",
     "-Wl,-mllvm,-interleave-small-loop-scalar-reduction",
+    "-Wl,-mllvm,-unroll-runtime",
     "-Wl,-mllvm,-unroll-runtime-multi-exit",
     "-Wl,-mllvm,-aggressive-ext-opt",
     "-Wl,-mllvm,-enable-interleaved-mem-accesses",
@@ -2178,6 +2187,7 @@ if (is_win) {
     "-Wl,-mllvm,-polly",
     "-Wl,-mllvm,-polly-detect-profitability-min-per-loop-insts=40",
     "-Wl,-mllvm,-polly-invariant-load-hoisting",
+    "-Wl,-mllvm,-polly-run-dce",
     "-Wl,-mllvm,-polly-vectorizer=stripmine",
     ]
   }