Index: lib/builtins/CMakeLists.txt
===================================================================
--- lib/builtins/CMakeLists.txt
+++ lib/builtins/CMakeLists.txt
@@ -320,6 +320,7 @@
   ${GENERIC_SOURCES})
 
 set(aarch64_SOURCES
+  arm64/epilogues.S
   comparetf2.c
   extenddftf2.c
   extendsftf2.c
Index: lib/builtins/arm64/epilogues.S
===================================================================
--- /dev/null
+++ lib/builtins/arm64/epilogues.S
@@ -0,0 +1,134 @@
+#include "../assembly.h"
+
+	.text
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X19_X20)
+	ldp x20, x19, [sp], #16
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X19_X20)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP)
+	ldp x29, x30, [sp], #16
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X27_X28)
+	ldp x28, x27, [sp], #16
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X27_X28)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22)
+	ldp x20, x19, [sp, #16]
+	ldp x22, x21, [sp], #32
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20)
+	ldp x29, x30, [sp, #16]
+	ldp x20, x19, [sp], #32
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X27_X28)
+	ldp x29, x30, [sp, #16]
+	ldp x28, x27, [sp], #32
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X27_X28)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24)
+	ldp x20, x19, [sp, #32]
+	ldp x22, x21, [sp, #16]
+	ldp x24, x23, [sp], #48
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22)
+	ldp x29, x30, [sp, #32]
+	ldp x20, x19, [sp, #16]
+	ldp x22, x21, [sp], #48
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X27_X28)
+	ldp x29, x30, [sp, #32]
+	ldp x20, x19, [sp, #16]
+	ldp x28, x27, [sp], #48
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X27_X28)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24_X25_X26)
+	ldp x20, x19, [sp, #48]
+	ldp x22, x21, [sp, #32]
+	ldp x24, x23, [sp, #16]
+	ldp x26, x25, [sp], #64
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24_X25_X26)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24)
+	ldp x29, x30, [sp, #48]
+	ldp x20, x19, [sp, #32]
+	ldp x22, x21, [sp, #16]
+	ldp x24, x23, [sp], #64
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24)
+
+	.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X27_X28)
+	ldp x29, x30, [sp, #48]
+	ldp x20, x19, [sp, #32]
+	ldp x22, x21, [sp, #16]
+	ldp x28, x27, [sp], #64
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X27_X28)
+
+.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24_X25_X26_X27_X28)
+	ldp x20, x19, [sp, #64]
+	ldp x22, x21, [sp, #48]
+	ldp x24, x23, [sp, #32]
+	ldp x26, x25, [sp, #16]
+	ldp x28, x27, [sp], #80
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_X19_X20_X21_X22_X23_X24_X25_X26_X27_X28)
+
+.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X25_X26)
+	ldp x29, x30, [sp, #64]
+	ldp x20, x19, [sp, #48]
+	ldp x22, x21, [sp, #32]
+	ldp x24, x23, [sp, #16]
+	ldp x26, x25, [sp], #80
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X25_X26)
+
+.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X27_X28)
+	ldp x29, x30, [sp, #64]
+	ldp x20, x19, [sp, #48]
+	ldp x22, x21, [sp, #32]
+	ldp x24, x23, [sp, #16]
+	ldp x28, x27, [sp], #80
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X27_X28)
+
+.p2align 2
+DEFINE_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X25_X26_X27_X28)
+	ldp x29, x30, [sp, #80]
+	ldp x20, x19, [sp, #64]
+	ldp x22, x21, [sp, #48]
+	ldp x24, x23, [sp, #32]
+	ldp x26, x25, [sp, #16]
+	ldp x28, x27, [sp], #96
+	ret
+END_COMPILERRT_FUNCTION(__epilogue_LR_FP_X19_X20_X21_X22_X23_X24_X25_X26_X27_X28)
Index: lib/builtins/assembly.h
===================================================================
--- lib/builtins/assembly.h
+++ lib/builtins/assembly.h
@@ -18,6 +18,8 @@
 
 #if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
 #define SEPARATOR @
+#elif defined(__APPLE__) && defined(__aarch64__)
+#define SEPARATOR %%
 #else
 #define SEPARATOR ;
 #endif