diff --git a/include/ck_pr.h b/include/ck_pr.h
index d688bc5..242bda4 100644
--- a/include/ck_pr.h
+++ b/include/ck_pr.h
@@ -99,6 +99,7 @@ CK_PR_FENCE_EMIT(store)
 CK_PR_FENCE_EMIT(memory)
 CK_PR_FENCE_EMIT(acquire)
 CK_PR_FENCE_EMIT(release)
+CK_PR_FENCE_EMIT(acqrel)
 CK_PR_FENCE_EMIT(lock)
 CK_PR_FENCE_EMIT(unlock)
 #elif defined(CK_MD_PSO)
@@ -118,6 +119,7 @@ CK_PR_FENCE_EMIT(store)
 CK_PR_FENCE_EMIT(memory)
 CK_PR_FENCE_EMIT(acquire)
 CK_PR_FENCE_EMIT(release)
+CK_PR_FENCE_EMIT(acqrel)
 CK_PR_FENCE_EMIT(lock)
 CK_PR_FENCE_EMIT(unlock)
 #elif defined(CK_MD_TSO)
@@ -137,6 +139,7 @@ CK_PR_FENCE_NOOP(store)
 CK_PR_FENCE_NOOP(memory)
 CK_PR_FENCE_NOOP(acquire)
 CK_PR_FENCE_NOOP(release)
+CK_PR_FENCE_NOOP(acqrel)
 CK_PR_FENCE_NOOP(lock)
 CK_PR_FENCE_NOOP(unlock)
 #else
diff --git a/include/gcc/arm/ck_pr.h b/include/gcc/arm/ck_pr.h
index 89f0c4d..e3ec1ba 100644
--- a/include/gcc/arm/ck_pr.h
+++ b/include/gcc/arm/ck_pr.h
@@ -94,6 +94,7 @@ CK_PR_FENCE(load_store, CK_DMB)
 CK_PR_FENCE(memory, CK_DMB)
 CK_PR_FENCE(acquire, CK_DMB)
 CK_PR_FENCE(release, CK_DMB)
+CK_PR_FENCE(acqrel, CK_DMB)
 CK_PR_FENCE(lock, CK_DMB)
 CK_PR_FENCE(unlock, CK_DMB)
 
diff --git a/include/gcc/ck_pr.h b/include/gcc/ck_pr.h
index fccb34c..e981d92 100644
--- a/include/gcc/ck_pr.h
+++ b/include/gcc/ck_pr.h
@@ -142,6 +142,7 @@ CK_PR_FENCE(store_load)
 CK_PR_FENCE(memory)
 CK_PR_FENCE(acquire)
 CK_PR_FENCE(release)
+CK_PR_FENCE(acqrel)
 CK_PR_FENCE(lock)
 CK_PR_FENCE(unlock)
 
diff --git a/include/gcc/ppc/ck_pr.h b/include/gcc/ppc/ck_pr.h
index 5fe0c95..0cf3232 100644
--- a/include/gcc/ppc/ck_pr.h
+++ b/include/gcc/ppc/ck_pr.h
@@ -79,6 +79,7 @@ CK_PR_FENCE(load_store, "lwsync")
 CK_PR_FENCE(memory, "sync")
 CK_PR_FENCE(acquire, "lwsync")
 CK_PR_FENCE(release, "lwsync")
+CK_PR_FENCE(acqrel, "lwsync")
 CK_PR_FENCE(lock, "lwsync")
 CK_PR_FENCE(unlock, "lwsync")
 
diff --git a/include/gcc/ppc64/ck_pr.h b/include/gcc/ppc64/ck_pr.h
index 5abd05c..828da6b 100644
--- a/include/gcc/ppc64/ck_pr.h
+++ b/include/gcc/ppc64/ck_pr.h
@@ -82,6 +82,7 @@ CK_PR_FENCE(load_store, "lwsync")
 CK_PR_FENCE(memory, "sync")
 CK_PR_FENCE(acquire, "lwsync")
 CK_PR_FENCE(release, "lwsync")
+CK_PR_FENCE(acqrel, "lwsync")
 CK_PR_FENCE(lock, "lwsync")
 CK_PR_FENCE(unlock, "lwsync")
 
diff --git a/include/gcc/sparcv9/ck_pr.h b/include/gcc/sparcv9/ck_pr.h
index 9e21748..767af6a 100644
--- a/include/gcc/sparcv9/ck_pr.h
+++ b/include/gcc/sparcv9/ck_pr.h
@@ -79,6 +79,7 @@ CK_PR_FENCE(load_store, "membar #LoadStore")
 CK_PR_FENCE(memory, "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
 CK_PR_FENCE(acquire, "membar #LoadLoad | #LoadStore")
 CK_PR_FENCE(release, "membar #LoadStore | #StoreStore")
+CK_PR_FENCE(acqrel, "membar #LoadLoad | #LoadStore | #StoreStore")
 CK_PR_FENCE(lock, "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
 CK_PR_FENCE(unlock, "membar #LoadStore | #StoreStore")
 
diff --git a/include/gcc/x86/ck_pr.h b/include/gcc/x86/ck_pr.h
index d3112e2..a04cebf 100644
--- a/include/gcc/x86/ck_pr.h
+++ b/include/gcc/x86/ck_pr.h
@@ -81,6 +81,7 @@ CK_PR_FENCE(store_load, "mfence")
 CK_PR_FENCE(memory, "mfence")
 CK_PR_FENCE(release, "mfence")
 CK_PR_FENCE(acquire, "mfence")
+CK_PR_FENCE(acqrel, "mfence")
 CK_PR_FENCE(lock, "mfence")
 CK_PR_FENCE(unlock, "mfence")
 
diff --git a/include/gcc/x86_64/ck_pr.h b/include/gcc/x86_64/ck_pr.h
index 0e966e5..e9ea216 100644
--- a/include/gcc/x86_64/ck_pr.h
+++ b/include/gcc/x86_64/ck_pr.h
@@ -87,6 +87,7 @@ CK_PR_FENCE(store_load, "mfence")
 CK_PR_FENCE(memory, "mfence")
 CK_PR_FENCE(release, "mfence")
 CK_PR_FENCE(acquire, "mfence")
+CK_PR_FENCE(acqrel, "mfence")
 CK_PR_FENCE(lock, "mfence")
 CK_PR_FENCE(unlock, "mfence")