1; RUN: llc -verify-machineinstrs < %s | FileCheck %s
2; This file contains a collection of basic tests to ensure we didn't
3; screw up normal call lowering when a statepoint is a GC transition.
4
5target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
6target triple = "x86_64-pc-linux-gnu"
7
8declare zeroext i1 @return_i1()
9declare zeroext i32 @return_i32()
10declare zeroext i32 @return_i32_with_args(i32, i8*)
11declare i32* @return_i32ptr()
12declare float @return_float()
13declare void @varargf(i32, ...)
14
15define i1 @test_i1_return() gc "statepoint-example" {
16; CHECK-LABEL: test_i1_return
17; This is just checking that a i1 gets lowered normally when there's no extra
18; state arguments to the statepoint
19; CHECK: pushq %rax
20; CHECK: callq return_i1
21; CHECK: popq %rcx
22; CHECK: retq
23entry:
24  %safepoint_token = tail call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 1, i32 0, i32 0)
25  %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
26  ret i1 %call1
27}
28
29define i32 @test_i32_return() gc "statepoint-example" {
30; CHECK-LABEL: test_i32_return
31; CHECK: pushq %rax
32; CHECK: callq return_i32
33; CHECK: popq %rcx
34; CHECK: retq
35entry:
36  %safepoint_token = tail call token (i64, i32, i32 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32f(i64 0, i32 0, i32 ()* @return_i32, i32 0, i32 1, i32 0, i32 0)
37  %call1 = call zeroext i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
38  ret i32 %call1
39}
40
41define i32* @test_i32ptr_return() gc "statepoint-example" {
42; CHECK-LABEL: test_i32ptr_return
43; CHECK: pushq %rax
44; CHECK: callq return_i32ptr
45; CHECK: popq %rcx
46; CHECK: retq
47entry:
48  %safepoint_token = tail call token (i64, i32, i32* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p0i32f(i64 0, i32 0, i32* ()* @return_i32ptr, i32 0, i32 1, i32 0, i32 0)
49  %call1 = call i32* @llvm.experimental.gc.result.p0i32(token %safepoint_token)
50  ret i32* %call1
51}
52
53define float @test_float_return() gc "statepoint-example" {
54; CHECK-LABEL: test_float_return
55; CHECK: pushq %rax
56; CHECK: callq return_float
57; CHECK: popq %rax
58; CHECK: retq
59entry:
60  %safepoint_token = tail call token (i64, i32, float ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_f32f(i64 0, i32 0, float ()* @return_float, i32 0, i32 1, i32 0, i32 0)
61  %call1 = call float @llvm.experimental.gc.result.f32(token %safepoint_token)
62  ret float %call1
63}
64
65define i1 @test_relocate(i32 addrspace(1)* %a) gc "statepoint-example" {
66; CHECK-LABEL: test_relocate
67; Check that an ununsed relocate has no code-generation impact
68; CHECK: pushq %rax
69; CHECK: callq return_i1
70; CHECK-NEXT: .Ltmp4:
71; CHECK-NEXT: popq %rcx
72; CHECK-NEXT: .cfi_def_cfa_offset 8
73; CHECK-NEXT: retq
74entry:
75  %safepoint_token = tail call token (i64, i32, i1 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i1f(i64 0, i32 0, i1 ()* @return_i1, i32 0, i32 1, i32 0, i32 0) ["gc-live" (i32 addrspace(1)* %a)]
76  %call1 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
77  %call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
78  ret i1 %call2
79}
80
81define void @test_void_vararg() gc "statepoint-example" {
82; CHECK-LABEL: test_void_vararg
83; Check a statepoint wrapping a *void* returning vararg function works
84; CHECK: callq varargf
85entry:
86  %safepoint_token = tail call token (i64, i32, void (i32, ...)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(i64 0, i32 0, void (i32, ...)* @varargf, i32 2, i32 1, i32 42, i32 43, i32 0, i32 0)
87  ;; if we try to use the result from a statepoint wrapping a
88  ;; non-void-returning varargf, we will experience a crash.
89  ret void
90}
91
92define i32 @test_transition_args() gc "statepoint-example" {
93; CHECK-LABEL: test_transition_args
94; CHECK: pushq %rax
95; CHECK: callq return_i32
96; CHECK: popq %rcx
97; CHECK: retq
98entry:
99  %val = alloca i32
100  %safepoint_token = call token (i64, i32, i32 ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32f(i64 0, i32 0, i32 ()* @return_i32, i32 0, i32 1, i32 0, i32 0) ["gc-transition" (i32* %val, i64 42)]
101  %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
102  ret i32 %call1
103}
104
105define i32 @test_transition_args_2() gc "statepoint-example" {
106; CHECK-LABEL: test_transition_args_2
107; CHECK: pushq %rax
108; CHECK: callq return_i32
109; CHECK: popq %rcx
110; CHECK: retq
111entry:
112  %val = alloca i32
113  %arg = alloca i8
114  %safepoint_token = call token (i64, i32, i32 (i32, i8*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_i32i32p0i8f(i64 0, i32 0, i32 (i32, i8*)* @return_i32_with_args, i32 2, i32 1, i32 0, i8* %arg, i32 0, i32 0) ["gc-transition" (i32* %val, i64 42)]
115  %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
116  ret i32 %call1
117}
118
119declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...)
120declare i1 @llvm.experimental.gc.result.i1(token)
121
122declare token @llvm.experimental.gc.statepoint.p0f_i32f(i64, i32, i32 ()*, i32, i32, ...)
123declare token @llvm.experimental.gc.statepoint.p0f_i32i32p0i8f(i64, i32, i32 (i32, i8*)*, i32, i32, ...)
124declare i32 @llvm.experimental.gc.result.i32(token)
125
126declare token @llvm.experimental.gc.statepoint.p0f_p0i32f(i64, i32, i32* ()*, i32, i32, ...)
127declare i32* @llvm.experimental.gc.result.p0i32(token)
128
129declare token @llvm.experimental.gc.statepoint.p0f_f32f(i64, i32, float ()*, i32, i32, ...)
130declare float @llvm.experimental.gc.result.f32(token)
131
132declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(i64, i32, void (i32, ...)*, i32, i32, ...)
133
134declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32)
135