1 ; RUN: llc < %s -tailcallopt -mtriple=x86_64-linux-gnu | FileCheck %s
3 ; Check the GHC call convention works (x86-64)
5 @base = external global i64 ; assigned to register: R13
6 @sp = external global i64 ; assigned to register: rbp
7 @hp = external global i64 ; assigned to register: R12
8 @r1 = external global i64 ; assigned to register: rbx
9 @r2 = external global i64 ; assigned to register: R14
10 @r3 = external global i64 ; assigned to register: rsi
11 @r4 = external global i64 ; assigned to register: rdi
12 @r5 = external global i64 ; assigned to register: R8
13 @r6 = external global i64 ; assigned to register: R9
14 @splim = external global i64 ; assigned to register: R15
16 @f1 = external global float ; assigned to register: xmm1
17 @f2 = external global float ; assigned to register: xmm2
18 @f3 = external global float ; assigned to register: xmm3
19 @f4 = external global float ; assigned to register: xmm4
20 @d1 = external global double ; assigned to register: xmm5
21 @d2 = external global double ; assigned to register: xmm6
23 define void @zap(i64 %a, i64 %b) nounwind {
25 ; CHECK: movq %rsi, %rbp
26 ; CHECK-NEXT: movq %rdi, %r13
27 ; CHECK-NEXT: callq addtwo
28 %0 = call ghccc i64 @addtwo(i64 %a, i64 %b)
30 call void @foo() nounwind
34 define ghccc i64 @addtwo(i64 %x, i64 %y) nounwind {
36 ; CHECK: leaq (%r13,%rbp), %rax
42 define ghccc void @foo() nounwind {
44 ; CHECK: movsd d2(%rip), %xmm6
45 ; CHECK-NEXT: movsd d1(%rip), %xmm5
46 ; CHECK-NEXT: movss f4(%rip), %xmm4
47 ; CHECK-NEXT: movss f3(%rip), %xmm3
48 ; CHECK-NEXT: movss f2(%rip), %xmm2
49 ; CHECK-NEXT: movss f1(%rip), %xmm1
50 ; CHECK-NEXT: movq splim(%rip), %r15
51 ; CHECK-NEXT: movq r6(%rip), %r9
52 ; CHECK-NEXT: movq r5(%rip), %r8
53 ; CHECK-NEXT: movq r4(%rip), %rdi
54 ; CHECK-NEXT: movq r3(%rip), %rsi
55 ; CHECK-NEXT: movq r2(%rip), %r14
56 ; CHECK-NEXT: movq r1(%rip), %rbx
57 ; CHECK-NEXT: movq hp(%rip), %r12
58 ; CHECK-NEXT: movq sp(%rip), %rbp
59 ; CHECK-NEXT: movq base(%rip), %r13
60 %0 = load double, double* @d2
61 %1 = load double, double* @d1
62 %2 = load float, float* @f4
63 %3 = load float, float* @f3
64 %4 = load float, float* @f2
65 %5 = load float, float* @f1
66 %6 = load i64, i64* @splim
67 %7 = load i64, i64* @r6
68 %8 = load i64, i64* @r5
69 %9 = load i64, i64* @r4
70 %10 = load i64, i64* @r3
71 %11 = load i64, i64* @r2
72 %12 = load i64, i64* @r1
73 %13 = load i64, i64* @hp
74 %14 = load i64, i64* @sp
75 %15 = load i64, i64* @base
77 tail call ghccc void @bar( i64 %15, i64 %14, i64 %13, i64 %12, i64 %11,
78 i64 %10, i64 %9, i64 %8, i64 %7, i64 %6,
79 float %5, float %4, float %3, float %2, double %1,
84 declare ghccc void @bar(i64, i64, i64, i64, i64, i64, i64, i64, i64, i64,
85 float, float, float, float, double, double)