1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -stack-symbol-ordering=0 -tailcallopt -relocation-model=static -code-model=medium -mtriple=x86_64-linux-gnu -mcpu=opteron | FileCheck %s
4 ; Check the HiPE calling convention works (x86-64)
6 define void @zap(i64 %a, i64 %b) nounwind {
8 ; CHECK: # %bb.0: # %entry
9 ; CHECK-NEXT: pushq %rbp
10 ; CHECK-NEXT: pushq %r15
11 ; CHECK-NEXT: pushq %r14
12 ; CHECK-NEXT: pushq %r13
13 ; CHECK-NEXT: pushq %r12
14 ; CHECK-NEXT: pushq %rbx
15 ; CHECK-NEXT: movq %rsi, %rdx
16 ; CHECK-NEXT: movl $8, %ecx
17 ; CHECK-NEXT: movl $9, %r8d
18 ; CHECK-NEXT: movq %rdi, %rsi
19 ; CHECK-NEXT: callq addfour@PLT
20 ; CHECK-NEXT: movl $1, %edx
21 ; CHECK-NEXT: movl $2, %ecx
22 ; CHECK-NEXT: movl $3, %r8d
23 ; CHECK-NEXT: movq %rax, %r9
24 ; CHECK-NEXT: callq foo@PLT
25 ; CHECK-NEXT: popq %rbx
26 ; CHECK-NEXT: popq %r12
27 ; CHECK-NEXT: popq %r13
28 ; CHECK-NEXT: popq %r14
29 ; CHECK-NEXT: popq %r15
30 ; CHECK-NEXT: popq %rbp
33 %0 = call cc 11 {i64, i64, i64} @addfour(i64 undef, i64 undef, i64 %a, i64 %b, i64 8, i64 9)
34 %res = extractvalue {i64, i64, i64} %0, 2
36 tail call void @foo(i64 undef, i64 undef, i64 1, i64 2, i64 3, i64 %res) nounwind
40 define cc 11 {i64, i64, i64} @addfour(i64 %hp, i64 %p, i64 %x, i64 %y, i64 %z, i64 %w) nounwind {
41 ; CHECK-LABEL: addfour:
42 ; CHECK: # %bb.0: # %entry
43 ; CHECK-NEXT: addq %rsi, %rdx
44 ; CHECK-NEXT: leaq (%rcx,%r8), %rax
45 ; CHECK-NEXT: addq %rdx, %rax
52 %res = insertvalue {i64, i64, i64} undef, i64 %2, 2
53 ret {i64, i64, i64} %res
56 define cc 11 void @foo(i64 %hp, i64 %p, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3) nounwind {
58 ; CHECK: # %bb.0: # %entry
59 ; CHECK-NEXT: subq $48, %rsp
60 ; CHECK-NEXT: movq %r15, {{[0-9]+}}(%rsp)
61 ; CHECK-NEXT: movq %rbp, {{[0-9]+}}(%rsp)
62 ; CHECK-NEXT: movq %rsi, {{[0-9]+}}(%rsp)
63 ; CHECK-NEXT: movq %rdx, {{[0-9]+}}(%rsp)
64 ; CHECK-NEXT: movq %rcx, {{[0-9]+}}(%rsp)
65 ; CHECK-NEXT: movq %r8, (%rsp)
66 ; CHECK-NEXT: addq $48, %rsp
67 ; CHECK-NEXT: jmp bar@PLT # TAILCALL
71 %arg0_var = alloca i64
72 %arg1_var = alloca i64
73 %arg2_var = alloca i64
74 %arg3_var = alloca i64
75 store i64 %hp, ptr %hp_var
76 store i64 %p, ptr %p_var
77 store i64 %arg0, ptr %arg0_var
78 store i64 %arg1, ptr %arg1_var
79 store i64 %arg2, ptr %arg2_var
80 store i64 %arg3, ptr %arg3_var
82 ; Loads are reading values just writen from corresponding register and are therefore noops.
83 %0 = load i64, ptr %hp_var
84 %1 = load i64, ptr %p_var
85 %2 = load i64, ptr %arg0_var
86 %3 = load i64, ptr %arg1_var
87 %4 = load i64, ptr %arg2_var
88 %5 = load i64, ptr %arg3_var
89 tail call cc 11 void @bar(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) nounwind
93 define cc 11 void @baz() nounwind {
96 ; CHECK-NEXT: movq clos@GOTPCREL(%rip), %rax
97 ; CHECK-NEXT: movl $42, %esi
98 ; CHECK-NEXT: jmpq *(%rax) # TAILCALL
99 %tmp_clos = load i64, ptr @clos
100 %tmp_clos2 = inttoptr i64 %tmp_clos to ptr
101 tail call cc 11 void %tmp_clos2(i64 undef, i64 undef, i64 42) nounwind
105 ; Sanity-check the tail call sequence. Number of arguments was chosen as to
106 ; expose a bug where the tail call sequence clobbered the stack.
107 define cc 11 { i64, i64, i64 } @tailcaller(i64 %hp, i64 %p) #0 {
108 ; CHECK-LABEL: tailcaller:
110 ; CHECK-NEXT: subq $16, %rsp
111 ; CHECK-NEXT: .cfi_def_cfa_offset 24
112 ; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rax
113 ; CHECK-NEXT: movq %rax, {{[0-9]+}}(%rsp)
114 ; CHECK-NEXT: movq $79, {{[0-9]+}}(%rsp)
115 ; CHECK-NEXT: movl $15, %esi
116 ; CHECK-NEXT: movl $31, %edx
117 ; CHECK-NEXT: movl $47, %ecx
118 ; CHECK-NEXT: movl $63, %r8d
119 ; CHECK-NEXT: popq %rax
120 ; CHECK-NEXT: .cfi_def_cfa_offset 16
121 ; CHECK-NEXT: jmp tailcallee@PLT # TAILCALL
122 %ret = tail call cc11 { i64, i64, i64 } @tailcallee(i64 %hp, i64 %p, i64 15,
123 i64 31, i64 47, i64 63, i64 79) #1
124 ret { i64, i64, i64 } %ret
127 !hipe.literals = !{ !0, !1, !2 }
128 !0 = !{ !"P_NSP_LIMIT", i32 160 }
129 !1 = !{ !"X86_LEAF_WORDS", i32 24 }
130 !2 = !{ !"AMD64_LEAF_WORDS", i32 24 }
131 @clos = external constant i64
132 declare cc 11 void @bar(i64, i64, i64, i64, i64, i64)
133 declare cc 11 { i64, i64, i64 } @tailcallee(i64, i64, i64, i64, i64, i64, i64)
134 !llvm.module.flags = !{!3}
135 !3 = !{i32 2, !"override-stack-alignment", i32 8}