38 lines
2.1 KiB
LLVM
38 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --extra_scrub --version 3
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; REQUIRES: asserts
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; RUN: llc -verify-machineinstrs -max-registers-for-gc-values=256 -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
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; Verify that FixupStatepointCallerSaved pass uses correct intruction for spilling a register after copyprop
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define dso_local ptr addrspace(1) @foo(ptr addrspace(1) %arg) gc "statepoint-example" personality ptr null {
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; CHECK-LABEL: foo:
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; CHECK: .Lfunc_begin0:
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; CHECK-NEXT: .cfi_startproc
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; CHECK-NEXT: // %bb.0:
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; CHECK-NEXT: sub sp, sp, #48
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; CHECK-NEXT: stp x30, x19, [sp, #32] // 16-byte Folded Spill
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: .cfi_offset w19, -8
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: ldr q0, [x0]
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; CHECK-NEXT: str q0, [sp, #16]
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; CHECK-NEXT: str d0, [sp, #8] // 8-byte Folded Spill
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; CHECK-NEXT: bl baz // 8-byte Folded Reload
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; CHECK-NEXT: .Ltmp0:
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; CHECK-NEXT: ldp x19, x0, [sp, #8] // 8-byte Folded Reload
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; CHECK-NEXT: ldp x30, x19, [sp, #32] // 16-byte Folded Reload
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; CHECK-NEXT: add sp, sp, #48
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; CHECK-NEXT: ret
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%load = load <2 x ptr addrspace(1)>, ptr addrspace(1) %arg, align 8
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%extractelement = extractelement <2 x ptr addrspace(1)> %load, i64 0
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%call = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @baz, i32 0, i32 0, i32 0, i32 0) [ "deopt"(ptr addrspace(1) %extractelement), "gc-live"(<2 x ptr addrspace(1)> %load) ]
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%relocate = call coldcc <2 x ptr addrspace(1)> @llvm.experimental.gc.relocate.v2p1(token %call, i32 0, i32 0)
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%extractelement2 = extractelement <2 x ptr addrspace(1)> %relocate, i64 0
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ret ptr addrspace(1) %extractelement2
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}
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declare void @baz()
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declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
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; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
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declare <2 x ptr addrspace(1)> @llvm.experimental.gc.relocate.v2p1(token, i32, i32) #0
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attributes #0 = { nocallback nofree nosync nounwind willreturn memory(none) }
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