| ; RUN: llc -verify-machineinstrs < %s | FileCheck %s |
| ; This file contains a collection of basic tests to ensure we didn't |
| ; screw up normal call lowering when a statepoint is a GC transition. |
| |
| target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-linux-gnu" |
| |
| declare zeroext i1 @return_i1() |
| declare zeroext i32 @return_i32() |
| declare zeroext i32 @return_i32_with_args(i32, ptr) |
| declare ptr @return_i32ptr() |
| declare float @return_float() |
| declare void @varargf(i32, ...) |
| |
| define i1 @test_i1_return() gc "statepoint-example" { |
| ; CHECK-LABEL: test_i1_return |
| ; This is just checking that a i1 gets lowered normally when there's no extra |
| ; state arguments to the statepoint |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i1 |
| ; CHECK: popq %rcx |
| ; CHECK: retq |
| entry: |
| %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) |
| %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token) |
| ret i1 %call1 |
| } |
| |
| define i32 @test_i32_return() gc "statepoint-example" { |
| ; CHECK-LABEL: test_i32_return |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i32 |
| ; CHECK: popq %rcx |
| ; CHECK: retq |
| entry: |
| %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) |
| %call1 = call zeroext i32 @llvm.experimental.gc.result.i32(token %safepoint_token) |
| ret i32 %call1 |
| } |
| |
| define ptr @test_i32ptr_return() gc "statepoint-example" { |
| ; CHECK-LABEL: test_i32ptr_return |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i32ptr |
| ; CHECK: popq %rcx |
| ; CHECK: retq |
| entry: |
| %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) |
| %call1 = call ptr @llvm.experimental.gc.result.p0(token %safepoint_token) |
| ret ptr %call1 |
| } |
| |
| define float @test_float_return() gc "statepoint-example" { |
| ; CHECK-LABEL: test_float_return |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_float |
| ; CHECK: popq %rax |
| ; CHECK: retq |
| entry: |
| %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) |
| %call1 = call float @llvm.experimental.gc.result.f32(token %safepoint_token) |
| ret float %call1 |
| } |
| |
| define i1 @test_relocate(ptr addrspace(1) %a) gc "statepoint-example" { |
| ; CHECK-LABEL: test_relocate |
| ; Check that an ununsed relocate has no code-generation impact |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i1 |
| ; CHECK-NEXT: .Ltmp4: |
| ; CHECK-NEXT: popq %rcx |
| ; CHECK-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK-NEXT: retq |
| entry: |
| %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)] |
| %call1 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0) |
| %call2 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token) |
| ret i1 %call2 |
| } |
| |
| define void @test_void_vararg() gc "statepoint-example" { |
| ; CHECK-LABEL: test_void_vararg |
| ; Check a statepoint wrapping a *ptr returning vararg function works |
| ; CHECK: callq varargf |
| entry: |
| %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) |
| ;; if we try to use the result from a statepoint wrapping a |
| ;; non-void-returning varargf, we will experience a crash. |
| ret void |
| } |
| |
| define i32 @test_transition_args() gc "statepoint-example" { |
| ; CHECK-LABEL: test_transition_args |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i32 |
| ; CHECK: popq %rcx |
| ; CHECK: retq |
| entry: |
| %val = alloca i32 |
| %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)] |
| %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token) |
| ret i32 %call1 |
| } |
| |
| define i32 @test_transition_args_2() gc "statepoint-example" { |
| ; CHECK-LABEL: test_transition_args_2 |
| ; CHECK: pushq %rax |
| ; CHECK: callq return_i32 |
| ; CHECK: popq %rcx |
| ; CHECK: retq |
| entry: |
| %val = alloca i32 |
| %arg = alloca i8 |
| %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)] |
| %call1 = call i32 @llvm.experimental.gc.result.i32(token %safepoint_token) |
| ret i32 %call1 |
| } |
| |
| declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...) |
| declare i1 @llvm.experimental.gc.result.i1(token) |
| |
| declare i32 @llvm.experimental.gc.result.i32(token) |
| |
| declare ptr @llvm.experimental.gc.result.p0(token) |
| |
| declare float @llvm.experimental.gc.result.f32(token) |
| |
| |
| declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32) |