xref: /llvm-project/llvm/test/CodeGen/X86/fast-isel-gc-intrinsics.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280) 
1; RUN: llc < %s -fast-isel
2
3target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-pc-linux-gnu"
5; Dont crash with gc intrinsics.
6
7; gcrelocate call should not be an LLVM Machine Block by itself.
8define ptr addrspace(1) @test_gcrelocate(ptr addrspace(1) %v) gc "statepoint-example" {
9entry:
10  %tok = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %v)]
11  %vnew = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %tok,  i32 0, i32 0)
12  ret ptr addrspace(1) %vnew
13}
14
15; gcresult calls are fine in their own blocks.
16define i1 @test_gcresult() gc "statepoint-example" {
17entry:
18  %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 0, i32 0, i32 0)
19  %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
20  br label %exit
21exit:
22  ret i1 %call1
23}
24
25; we are okay here because we see the gcrelocate and avoid generating their own
26; block.
27define i1 @test_gcresult_gcrelocate(ptr addrspace(1) %v) gc "statepoint-example" {
28entry:
29  %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 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %v)]
30  %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(token %safepoint_token)
31  %vnew = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token,  i32 0, i32 0)
32  br label %exit
33exit:
34  ret i1 %call1
35}
36
37define ptr addrspace(1)  @test_non_entry_block(ptr addrspace(1) %v, i8 %val) gc "statepoint-example" {
38entry:
39 %load = load i8, ptr addrspace(1) %v
40 %cmp = icmp eq i8 %load, %val
41 br i1 %cmp, label %func_call, label %exit
42
43func_call:
44 call void @dummy()
45 %tok = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %v)]
46 %vnew = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %tok,  i32 0, i32 0)
47 ret ptr addrspace(1) %vnew
48
49exit:
50  ret ptr addrspace(1) %v
51
52}
53
54declare void @dummy()
55declare void @foo()
56
57declare zeroext i1 @return_i1()
58declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
59declare i1 @llvm.experimental.gc.result.i1(token)
60declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)
61