diff --git a/builtins.cpp b/builtins.cpp
index e671a491..b2896388 100644
--- a/builtins.cpp
+++ b/builtins.cpp
@@ -487,7 +487,6 @@ lSetInternalFunctions(llvm::Module *module) {
         "__num_cores",
         "__packed_load_active",
         "__packed_store_active",
-        "__pause",
         "__popcnt_int32",
         "__popcnt_int64",
         "__prefetch_read_uniform_1",
diff --git a/builtins/util.m4 b/builtins/util.m4
index 1f85e2cc..025030d5 100644
--- a/builtins/util.m4
+++ b/builtins/util.m4
@@ -1795,11 +1795,6 @@ declare i1 @__is_compile_time_constant_mask(<WIDTH x MASK> %mask)
 declare i1 @__is_compile_time_constant_uniform_int32(i32)
 declare i1 @__is_compile_time_constant_varying_int32(<WIDTH x i32>)
 
-define void @__pause() nounwind readnone {
-  call void asm sideeffect "pause", "~{dirflag},~{fpsr},~{flags}"() nounwind
-  ret void
-}
-
 ; This function declares placeholder masked store functions for the
 ;  front-end to use.
 ;