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.
5 target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
6 target triple = "x86_64-pc-linux-gnu"
8 declare zeroext i1 @return_i1()
9 declare zeroext i32 @return_i32()
10 declare zeroext i32 @return_i32_with_args(i32, ptr)
11 declare ptr @return_i32ptr()
12 declare float @return_float()
13 declare void @varargf(i32, ...)
15 define 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
20 ; CHECK: callq return_i1
24 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 1, i32 0, i32 0)
25 %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
29 define i32 @test_i32_return() gc "statepoint-example" {
30 ; CHECK-LABEL: test_i32_return
32 ; CHECK: callq return_i32
36 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i32 ()) @return_i32, i32 0, i32 1, i32 0, i32 0)
37 %call1 = call zeroext i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
41 define ptr @test_i32ptr_return() gc "statepoint-example" {
42 ; CHECK-LABEL: test_i32ptr_return
44 ; CHECK: callq return_i32ptr
48 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(ptr ()) @return_i32ptr, i32 0, i32 1, i32 0, i32 0)
49 %call1 = call ptr @llvm.experimental.gc.result.p0(token %safepoint_token)
53 define float @test_float_return() gc "statepoint-example" {
54 ; CHECK-LABEL: test_float_return
56 ; CHECK: callq return_float
60 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(float ()) @return_float, i32 0, i32 1, i32 0, i32 0)
61 %call1 = call float @llvm.experimental.gc.result.f32(token %safepoint_token)
65 define i1 @test_relocate(ptr addrspace(1) %a) gc "statepoint-example" {
66 ; CHECK-LABEL: test_relocate
67 ; Check that an ununsed relocate has no code-generation impact
69 ; CHECK: callq return_i1
71 ; CHECK-NEXT: popq %rcx
72 ; CHECK-NEXT: .cfi_def_cfa_offset 8
75 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 1, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %a)]
76 %call1 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)
77 %call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
81 define void @test_void_vararg() gc "statepoint-example" {
82 ; CHECK-LABEL: test_void_vararg
83 ; Check a statepoint wrapping a *ptr returning vararg function works
84 ; CHECK: callq varargf
86 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(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.
92 define i32 @test_transition_args() gc "statepoint-example" {
93 ; CHECK-LABEL: test_transition_args
95 ; CHECK: callq return_i32
100 %safepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i32 ()) @return_i32, i32 0, i32 1, i32 0, i32 0) ["gc-transition" (ptr %val, i64 42)]
101 %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
105 define i32 @test_transition_args_2() gc "statepoint-example" {
106 ; CHECK-LABEL: test_transition_args_2
108 ; CHECK: callq return_i32
114 %safepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i32 (i32, ptr)) @return_i32_with_args, i32 2, i32 1, i32 0, ptr %arg, i32 0, i32 0) ["gc-transition" (ptr %val, i64 42)]
115 %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token)
119 declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
120 declare i1 @llvm.experimental.gc.result.i1(token)
122 declare i32 @llvm.experimental.gc.result.i32(token)
124 declare ptr @llvm.experimental.gc.result.p0(token)
126 declare float @llvm.experimental.gc.result.f32(token)
129 declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)