1 ; RUN: llc < %s -stack-symbol-ordering=0 -tailcallopt -relocation-model=static -code-model=medium -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, %rdx
8 ; CHECK-NEXT: movl $8, %ecx
9 ; CHECK-NEXT: movl $9, %r8d
10 ; CHECK-NEXT: movq %rdi, %rsi
11 ; CHECK-NEXT: callq addfour
12 %0 = call cc 11 {i64, i64, i64} @addfour(i64 undef, i64 undef, i64 %a, i64 %b, i64 8, i64 9)
13 %res = extractvalue {i64, i64, i64} %0, 2
15 ; CHECK: movl $1, %edx
16 ; CHECK-NEXT: movl $2, %ecx
17 ; CHECK-NEXT: movl $3, %r8d
18 ; CHECK-NEXT: movq %rax, %r9
20 tail call void @foo(i64 undef, i64 undef, i64 1, i64 2, i64 3, i64 %res) nounwind
24 define cc 11 {i64, i64, i64} @addfour(i64 %hp, i64 %p, i64 %x, i64 %y, i64 %z, i64 %w) nounwind {
26 ; CHECK: leaq (%rsi,%rdx), %rax
27 ; CHECK-NEXT: addq %rcx, %rax
28 ; CHECK-NEXT: addq %r8, %rax
34 %res = insertvalue {i64, i64, i64} undef, i64 %2, 2
35 ret {i64, i64, i64} %res
38 define cc 11 void @foo(i64 %hp, i64 %p, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3) nounwind {
40 ; CHECK: movq %r15, 40(%rsp)
41 ; CHECK-NEXT: movq %rbp, 32(%rsp)
42 ; CHECK-NEXT: movq %rsi, 24(%rsp)
43 ; CHECK-NEXT: movq %rdx, 16(%rsp)
44 ; CHECK-NEXT: movq %rcx, 8(%rsp)
45 ; CHECK-NEXT: movq %r8, (%rsp)
48 %arg0_var = alloca i64
49 %arg1_var = alloca i64
50 %arg2_var = alloca i64
51 %arg3_var = alloca i64
52 store i64 %hp, ptr %hp_var
53 store i64 %p, ptr %p_var
54 store i64 %arg0, ptr %arg0_var
55 store i64 %arg1, ptr %arg1_var
56 store i64 %arg2, ptr %arg2_var
57 store i64 %arg3, ptr %arg3_var
59 ; Loads are reading values just writen from corresponding register and are therefore noops.
60 %0 = load i64, ptr %hp_var
61 %1 = load i64, ptr %p_var
62 %2 = load i64, ptr %arg0_var
63 %3 = load i64, ptr %arg1_var
64 %4 = load i64, ptr %arg2_var
65 %5 = load i64, ptr %arg3_var
67 tail call cc 11 void @bar(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) nounwind
71 define cc 11 void @baz() nounwind {
72 %tmp_clos = load i64, ptr @clos
73 %tmp_clos2 = inttoptr i64 %tmp_clos to ptr
74 ; CHECK: movl $42, %esi
75 ; CHECK-NEXT: jmpq *(%rax)
76 tail call cc 11 void %tmp_clos2(i64 undef, i64 undef, i64 42) nounwind
80 ; Sanity-check the tail call sequence. Number of arguments was chosen as to
81 ; expose a bug where the tail call sequence clobbered the stack.
82 define cc 11 { i64, i64, i64 } @tailcaller(i64 %hp, i64 %p) #0 {
83 ; CHECK: movl $15, %esi
84 ; CHECK-NEXT: movl $31, %edx
85 ; CHECK-NEXT: movl $47, %ecx
86 ; CHECK-NEXT: movl $63, %r8d
87 ; CHECK-NEXT: popq %rax
88 ; CHECK-NEXT: .cfi_def_cfa_offset 16
89 ; CHECK-NEXT: jmp tailcallee
90 %ret = tail call cc11 { i64, i64, i64 } @tailcallee(i64 %hp, i64 %p, i64 15,
91 i64 31, i64 47, i64 63, i64 79) #1
92 ret { i64, i64, i64 } %ret
95 !hipe.literals = !{ !0, !1, !2 }
96 !0 = !{ !"P_NSP_LIMIT", i32 160 }
97 !1 = !{ !"X86_LEAF_WORDS", i32 24 }
98 !2 = !{ !"AMD64_LEAF_WORDS", i32 24 }
99 @clos = external constant i64
100 declare cc 11 void @bar(i64, i64, i64, i64, i64, i64)
101 declare cc 11 { i64, i64, i64 } @tailcallee(i64, i64, i64, i64, i64, i64, i64)
102 !llvm.module.flags = !{!3}
103 !3 = !{i32 2, !"override-stack-alignment", i32 8}