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, ptr) 11declare ptr @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, 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) 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, 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) 38 ret i32 %call1 39} 40 41define ptr @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, 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) 50 ret ptr %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, 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) 62 ret float %call1 63} 64 65define 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 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, 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) 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 *ptr returning vararg function works 84; CHECK: callq varargf 85entry: 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. 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, 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) 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, 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) 116 ret i32 %call1 117} 118 119declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...) 120declare i1 @llvm.experimental.gc.result.i1(token) 121 122declare i32 @llvm.experimental.gc.result.i32(token) 123 124declare ptr @llvm.experimental.gc.result.p0(token) 125 126declare float @llvm.experimental.gc.result.f32(token) 127 128 129declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32) 130