derek.holloway
7502bf64a4
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33 lines
1.4 KiB
LLVM
33 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs < %s | FileCheck %s
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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declare void @use(...)
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declare void @f()
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declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
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declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)
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;; Check that llvm doesn't crash if relocate with undef base/derived ptr survives until isel
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define void @test_gcrelocate_undef(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: test_gcrelocate_undef:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: movq %rdi, (%rsp)
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; CHECK-NEXT: callq f@PLT
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; CHECK-NEXT: .Ltmp0:
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; CHECK-NEXT: movl $4278124286, %edi # imm = 0xFEFEFEFE
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: callq use@PLT
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; CHECK-NEXT: popq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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%tok = tail call token (i64, i32, ptr, i32, i32, ...)
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@llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @f, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %ptr, ptr addrspace(1) undef), "deopt" (ptr addrspace(1) %ptr, i32 undef)]
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%a = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %tok, i32 0, i32 1)
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call void (...) @use(ptr addrspace(1) %a)
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ret void
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}
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