1// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
2
3unsigned long long foo(unsigned long long addr, unsigned long long a0,
4                       unsigned long long a1, unsigned long long a2,
5                       unsigned long long a3, unsigned long long a4,
6                       unsigned long long a5) {
7  register unsigned long long result asm("rax");
8  register unsigned long long b0 asm("rdi");
9  register unsigned long long b1 asm("rsi");
10  register unsigned long long b2 asm("rdx");
11  register unsigned long long b3 asm("rcx");
12  register unsigned long long b4 asm("r8");
13  register unsigned long long b5 asm("r9");
14
15  b0 = a0;
16  b1 = a1;
17  b2 = a2;
18  b3 = a3;
19  b4 = a4;
20  b5 = a5;
21
22  asm("call *%1" : "=r" (result)
23      : "r"(addr), "r" (b0), "r" (b1), "r" (b2), "r" (b3), "r" (b4), "r" (b5));
24  return result;
25}
26
27// CHECK: call i64 asm "call *$1", "={rax},r,{rdi},{rsi},{rdx},{rcx},{r8},{r9},~{dirflag},~{fpsr},~{flags}"
28
29unsigned long long foo2(unsigned long long addr, double a0,
30                       double a1, double a2,
31                       double a3, double a4,
32                       double a5, double a6, double a7) {
33  register double b0 asm("xmm0");
34  register double b1 asm("xmm1");
35  register double b2 asm("xmm2");
36  register double b3 asm("xmm3");
37  register double b4 asm("xmm4");
38  register double b5 asm("xmm5");
39  register double b6 asm("xmm6");
40  register double b7 asm("xmm7");
41
42  register unsigned long long result asm("rax");
43
44  b0 = a0;
45  b1 = a1;
46  b2 = a2;
47  b3 = a3;
48  b4 = a4;
49  b5 = a5;
50  b6 = a6;
51  b7 = a7;
52
53  asm("call *%1" : "=r" (result)
54      : "r"(addr), "x" (b0), "x" (b1), "x" (b2), "x" (b3), "x" (b4), "x" (b5), "x" (b6),
55        "x" (b7));
56  return result;
57}
58
59// CHECK: call i64 asm "call *$1", "={rax},r,{xmm0},{xmm1},{xmm2},{xmm3},{xmm4},{xmm5},{xmm6},{xmm7},~{dirflag},~{fpsr},~{flags}
60
61int randomvar asm("randomvar");
62void foo3() {
63  asm("vartest %0" : : "r"(randomvar));
64}
65// CHECK: call void asm sideeffect "vartest $0", "r,~{dirflag},~{fpsr},~{flags}"
66