1; RUN: llc < %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: .Ltmp9: 71; CHECK-NEXT: popq %rcx 72; CHECK-NEXT: retq 73entry: 74 %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, i32 addrspace(1)* %a) 75 %call1 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 7, i32 7) 76 %call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token) 77 ret i1 %call2 78} 79 80define void @test_void_vararg() gc "statepoint-example" { 81; CHECK-LABEL: test_void_vararg 82; Check a statepoint wrapping a *void* returning vararg function works 83; CHECK: callq varargf 84entry: 85 %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) 86 ;; if we try to use the result from a statepoint wrapping a 87 ;; non-void-returning varargf, we will experience a crash. 88 ret void 89} 90 91define i32 @test_transition_args() gc "statepoint-example" { 92; CHECK-LABEL: test_transition_args 93; CHECK: pushq %rax 94; CHECK: callq return_i32 95; CHECK: popq %rcx 96; CHECK: retq 97entry: 98 %val = alloca i32 99 %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 2, i32* %val, i64 42, i32 0) 100 %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token) 101 ret i32 %call1 102} 103 104define i32 @test_transition_args_2() gc "statepoint-example" { 105; CHECK-LABEL: test_transition_args_2 106; CHECK: pushq %rax 107; CHECK: callq return_i32 108; CHECK: popq %rcx 109; CHECK: retq 110entry: 111 %val = alloca i32 112 %arg = alloca i8 113 %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 2, i32* %val, i64 42, i32 0) 114 %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token) 115 ret i32 %call1 116} 117 118declare token @llvm.experimental.gc.statepoint.p0f_i1f(i64, i32, i1 ()*, i32, i32, ...) 119declare i1 @llvm.experimental.gc.result.i1(token) 120 121declare token @llvm.experimental.gc.statepoint.p0f_i32f(i64, i32, i32 ()*, i32, i32, ...) 122declare token @llvm.experimental.gc.statepoint.p0f_i32i32p0i8f(i64, i32, i32 (i32, i8*)*, i32, i32, ...) 123declare i32 @llvm.experimental.gc.result.i32(token) 124 125declare token @llvm.experimental.gc.statepoint.p0f_p0i32f(i64, i32, i32* ()*, i32, i32, ...) 126declare i32* @llvm.experimental.gc.result.p0i32(token) 127 128declare token @llvm.experimental.gc.statepoint.p0f_f32f(i64, i32, float ()*, i32, i32, ...) 129declare float @llvm.experimental.gc.result.f32(token) 130 131declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(i64, i32, void (i32, ...)*, i32, i32, ...) 132 133declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32)