1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -verify-machineinstrs < %s | FileCheck %s
4 ; Check that we can export values of "duplicated" gc.relocates without a crash
5 ; "duplicate" here means maps to same SDValue. We previously had an
6 ; optimization which tried to reduce number of spills/stackmap entries in such
7 ; cases, but it incorrectly handled exports across basis block boundaries
8 ; leading to a crash in this case.
10 target triple = "x86_64-pc-linux-gnu"
14 define i1 @test() gc "statepoint-example" {
16 ; CHECK: # %bb.0: # %entry
17 ; CHECK-NEXT: pushq %rax
18 ; CHECK-NEXT: .cfi_def_cfa_offset 16
19 ; CHECK-NEXT: callq func@PLT
21 ; CHECK-NEXT: callq func@PLT
23 ; CHECK-NEXT: movb $1, %al
24 ; CHECK-NEXT: popq %rcx
25 ; CHECK-NEXT: .cfi_def_cfa_offset 8
28 %safepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) null, ptr addrspace(1) null)]
29 %base = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)
30 %derived = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 1)
31 %safepoint_token2 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %base, ptr addrspace(1) %derived)]
35 %base_reloc = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 0)
36 %derived_reloc = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 1)
37 %cmp1 = icmp eq ptr addrspace(1) %base_reloc, null
38 %cmp2 = icmp eq ptr addrspace(1) %derived_reloc, null
39 %cmp = and i1 %cmp1, %cmp2
43 ; Showing redundant fill on first statepoint and spill/fill on second one
44 define i1 @test2(ptr addrspace(1) %arg) gc "statepoint-example" {
46 ; CHECK: # %bb.0: # %entry
47 ; CHECK-NEXT: pushq %rax
48 ; CHECK-NEXT: .cfi_def_cfa_offset 16
49 ; CHECK-NEXT: movq %rdi, (%rsp)
50 ; CHECK-NEXT: callq func@PLT
52 ; CHECK-NEXT: callq func@PLT
54 ; CHECK-NEXT: cmpq $0, (%rsp)
55 ; CHECK-NEXT: sete %al
56 ; CHECK-NEXT: popq %rcx
57 ; CHECK-NEXT: .cfi_def_cfa_offset 8
60 %safepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %arg, ptr addrspace(1) %arg)]
61 %base = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)
62 %derived = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 1)
63 %safepoint_token2 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %base, ptr addrspace(1) %derived)]
67 %base_reloc = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 0)
68 %derived_reloc = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 1)
69 %cmp1 = icmp eq ptr addrspace(1) %base_reloc, null
70 %cmp2 = icmp eq ptr addrspace(1) %derived_reloc, null
71 %cmp = and i1 %cmp1, %cmp2
76 declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
77 declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)