diff --git a/.mozconfig-aarch64-apple-darwin b/.mozconfig-aarch64-apple-darwin
index 29408cc952881..ea985651bcfe3 100644
--- a/.mozconfig-aarch64-apple-darwin
+++ b/.mozconfig-aarch64-apple-darwin
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Targetting ARM64 builds. Expected to be run on Linux.
 
-POLLY="-mllvm -polly -mllvm -polly-position=before-vectorizer -mllvm -polly-process-unprofitable -mllvm -polly-vectorizer=stripmine -mllvm -polly-parallel -mllvm -polly-omp-backend=LLVM -mllvm -polly-scheduling=static"
+POLLY="-mllvm -extra-vectorizer-passes -mllvm -enable-cond-stores-vec -mllvm -slp-vectorize-hor-store -mllvm -enable-loopinterchange -mllvm -enable-loop-distribute -mllvm -enable-unroll-and-jam -mllvm -enable-loop-flatten -mllvm -interleave-small-loop-scalar-reduction -mllvm -unroll-runtime-multi-exit -mllvm -aggressive-ext-opt -mllvm -polly -mllvm -polly-detect-profitability-min-per-loop-insts=40 -mllvm -polly-invariant-load-hoisting -mllvm -polly-position=early -mllvm -polly-vectorizer=stripmine -mllvm -polly-run-inliner -mllvm -polly-enable-delicm=true"
 TOOLS=$HOME/macos-cross
 export CC="$HOME"/macos-cross/clang/bin/clang
 export CXX="$HOME"/macos-cross/clang/bin/clang++
diff --git a/.mozconfig-x86_64-apple-darwin b/.mozconfig-x86_64-apple-darwin
index 6b09b93619a07..036717ce2d275 100644
--- a/.mozconfig-x86_64-apple-darwin
+++ b/.mozconfig-x86_64-apple-darwin
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Targetting X64 builds. Expected to be run on Linux.
 
-POLLY="-mllvm -polly -mllvm -polly-position=before-vectorizer -mllvm -polly-process-unprofitable -mllvm -polly-vectorizer=stripmine -mllvm -polly-parallel -mllvm -polly-omp-backend=LLVM -mllvm -polly-scheduling=static"
+POLLY="-mllvm -extra-vectorizer-passes -mllvm -enable-cond-stores-vec -mllvm -slp-vectorize-hor-store -mllvm -enable-loopinterchange -mllvm -enable-loop-distribute -mllvm -enable-unroll-and-jam -mllvm -enable-loop-flatten -mllvm -interleave-small-loop-scalar-reduction -mllvm -unroll-runtime-multi-exit -mllvm -aggressive-ext-opt -mllvm -polly -mllvm -polly-detect-profitability-min-per-loop-insts=40 -mllvm -polly-invariant-load-hoisting -mllvm -polly-position=early -mllvm -polly-vectorizer=stripmine -mllvm -polly-run-inliner -mllvm -polly-enable-delicm=true"
 TOOLS=$HOME/macos-cross
 export CC="$HOME"/macos-cross/clang/bin/clang
 export CXX="$HOME"/macos-cross/clang/bin/clang++
diff --git a/.mozconfig-x86_64-pc-windows-msvc b/.mozconfig-x86_64-pc-windows-msvc
index bf3078a979527..296f596f5f4a2 100644
--- a/.mozconfig-x86_64-pc-windows-msvc
+++ b/.mozconfig-x86_64-pc-windows-msvc
@@ -1,6 +1,6 @@
 #!/bin/sh
 export CROSS_BUILD=1
-POLLY="-mllvm -polly -mllvm -polly-position=before-vectorizer -mllvm -polly-process-unprofitable -mllvm -polly-vectorizer=stripmine -mllvm -polly-parallel -mllvm -polly-omp-backend=LLVM -mllvm -polly-scheduling=static"
+POLLY="-mllvm -extra-vectorizer-passes -mllvm -enable-cond-stores-vec -mllvm -slp-vectorize-hor-store -mllvm -enable-loopinterchange -mllvm -enable-loop-distribute -mllvm -enable-unroll-and-jam -mllvm -enable-loop-flatten -mllvm -interleave-small-loop-scalar-reduction -mllvm -unroll-runtime-multi-exit -mllvm -aggressive-ext-opt -mllvm -polly -mllvm -polly-detect-profitability-min-per-loop-insts=40 -mllvm -polly-invariant-load-hoisting -mllvm -polly-position=early -mllvm -polly-vectorizer=stripmine -mllvm -polly-run-inliner -mllvm -polly-enable-delicm=true"
 TOOLS=$HOME/win-cross
 WINSYSROOT="$HOME/win-root"