1 ; RUN: llc < %s -stack-symbol-ordering=0 -tailcallopt -relocation-model=static -code-model=medium -stack-alignment=8 -mtriple=x86_64-linux-gnu -mcpu=opteron | FileCheck %s
3 ; Check the HiPE calling convention works (x86-64)
5 define void @zap(i64 %a, i64 %b) nounwind {
7 ; CHECK: movq %rsi, %rax
8 ; CHECK-NEXT: movl $8, %ecx
9 ; CHECK-NEXT: movl $9, %r8d
10 ; CHECK-NEXT: movq %rdi, %rsi
11 ; CHECK-NEXT: movq %rax, %rdx
12 ; CHECK-NEXT: callq addfour
13 %0 = call cc 11 {i64, i64, i64} @addfour(i64 undef, i64 undef, i64 %a, i64 %b, i64 8, i64 9)
14 %res = extractvalue {i64, i64, i64} %0, 2
16 ; CHECK: movl $1, %edx
17 ; CHECK-NEXT: movl $2, %ecx
18 ; CHECK-NEXT: movl $3, %r8d
19 ; CHECK-NEXT: movq %rax, %r9
21 tail call void @foo(i64 undef, i64 undef, i64 1, i64 2, i64 3, i64 %res) nounwind
25 define cc 11 {i64, i64, i64} @addfour(i64 %hp, i64 %p, i64 %x, i64 %y, i64 %z, i64 %w) nounwind {
27 ; CHECK: leaq (%rsi,%rdx), %rax
28 ; CHECK-NEXT: addq %rcx, %rax
29 ; CHECK-NEXT: addq %r8, %rax
35 %res = insertvalue {i64, i64, i64} undef, i64 %2, 2
36 ret {i64, i64, i64} %res
39 define cc 11 void @foo(i64 %hp, i64 %p, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3) nounwind {
41 ; CHECK: movq %r15, 40(%rsp)
42 ; CHECK-NEXT: movq %rbp, 32(%rsp)
43 ; CHECK-NEXT: movq %rsi, 24(%rsp)
44 ; CHECK-NEXT: movq %rdx, 16(%rsp)
45 ; CHECK-NEXT: movq %rcx, 8(%rsp)
46 ; CHECK-NEXT: movq %r8, (%rsp)
49 %arg0_var = alloca i64
50 %arg1_var = alloca i64
51 %arg2_var = alloca i64
52 %arg3_var = alloca i64
53 store i64 %hp, i64* %hp_var
54 store i64 %p, i64* %p_var
55 store i64 %arg0, i64* %arg0_var
56 store i64 %arg1, i64* %arg1_var
57 store i64 %arg2, i64* %arg2_var
58 store i64 %arg3, i64* %arg3_var
60 ; Loads are reading values just writen from corresponding register and are therefore noops.
61 %0 = load i64, i64* %hp_var
62 %1 = load i64, i64* %p_var
63 %2 = load i64, i64* %arg0_var
64 %3 = load i64, i64* %arg1_var
65 %4 = load i64, i64* %arg2_var
66 %5 = load i64, i64* %arg3_var
68 tail call cc 11 void @bar(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) nounwind
72 define cc 11 void @baz() nounwind {
73 %tmp_clos = load i64, i64* @clos
74 %tmp_clos2 = inttoptr i64 %tmp_clos to i64*
75 %indirect_call = bitcast i64* %tmp_clos2 to void (i64, i64, i64)*
76 ; CHECK: movl $42, %esi
77 ; CHECK-NEXT: jmpq *(%rax)
78 tail call cc 11 void %indirect_call(i64 undef, i64 undef, i64 42) nounwind
82 ; Sanity-check the tail call sequence. Number of arguments was chosen as to
83 ; expose a bug where the tail call sequence clobbered the stack.
84 define cc 11 { i64, i64, i64 } @tailcaller(i64 %hp, i64 %p) #0 {
85 ; CHECK: movl $15, %esi
86 ; CHECK-NEXT: movl $31, %edx
87 ; CHECK-NEXT: movl $47, %ecx
88 ; CHECK-NEXT: movl $63, %r8d
89 ; CHECK-NEXT: popq %rax
90 ; CHECK-NEXT: .cfi_def_cfa_offset 16
91 ; CHECK-NEXT: jmp tailcallee
92 %ret = tail call cc11 { i64, i64, i64 } @tailcallee(i64 %hp, i64 %p, i64 15,
93 i64 31, i64 47, i64 63, i64 79) #1
94 ret { i64, i64, i64 } %ret
97 !hipe.literals = !{ !0, !1, !2 }
98 !0 = !{ !"P_NSP_LIMIT", i32 160 }
99 !1 = !{ !"X86_LEAF_WORDS", i32 24 }
100 !2 = !{ !"AMD64_LEAF_WORDS", i32 24 }
101 @clos = external constant i64
102 declare cc 11 void @bar(i64, i64, i64, i64, i64, i64)
103 declare cc 11 { i64, i64, i64 } @tailcallee(i64, i64, i64, i64, i64, i64, i64)