Index: src/invocation/apple-call-x86_64.S
==================================================================
--- src/invocation/apple-call-x86_64.S
+++ src/invocation/apple-call-x86_64.S
@@ -60,12 +60,24 @@
 	movq	24(%rdi), %rcx
 	movq	16(%rdi), %rdx
 	movq	8(%rdi), %rsi
 	movq	0(%rdi), %rdi
 
+	movb	225(%rdi), %r11b
+
+	cmpb	$1, %r11b
+	je	Lcall_send_stret
+
+	cmpb	$3, %r11b
+	je	_objc_msgSend
+
+	cmpb	$4, %r11b
+	je	_objc_msgSend_stret
+
 	call	_objc_msgSend
 
+Lafter_send:
 	movq	-8(%rbp), %rdi
 	movq	%rax, 48(%rdi)
 	movq	%rdx, 56(%rdi)
 	movdqa	%xmm0, 64(%rdi)
 	movdqa	%xmm1, 80(%rdi)
@@ -81,9 +93,13 @@
 
 Lfix_align:
 	xorq	%r11, %r11
 	pushq	%r11
 	jmp	Lfill_stack
+
+Lcall_send_stret:
+	call	_objc_msgSend_stret
+	jmp	Lafter_send
 
 Lpop_long_double:
 	fstpt	192(%rdi)
 	jmp	Lreturn

Index: src/invocation/invoke-x86_64.m
==================================================================
--- src/invocation/invoke-x86_64.m
+++ src/invocation/invoke-x86_64.m
@@ -32,11 +32,13 @@
 #define NUM_X87_OUT 2
 
 enum {
 	RETURN_TYPE_NORMAL,
 	RETURN_TYPE_STRUCT,
-	RETURN_TYPE_X87
+	RETURN_TYPE_X87,
+	RETURN_TYPE_JMP,
+	RETURN_TYPE_JMP_STRET
 };
 
 struct call_context {
 	uint64_t gpr[NUM_GPR_IN + NUM_GPR_OUT];
 	__m128 sse[NUM_SSE_IN];