derek.holloway
7502bf64a4
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39 lines
1.4 KiB
LLVM
39 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=aarch64-windows-msvc -aarch64-streaming-hazard-size=0 -mattr=+sve,+sme < %s | FileCheck %s
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declare void @private_za_callee()
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declare void @shared_za_callee() "aarch64_inout_za"
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define void @test_lazy_save() nounwind "aarch64_inout_za" {
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; CHECK-LABEL: test_lazy_save:
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; CHECK: // %bb.0:
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; CHECK-NEXT: str x19, [sp, #-32]! // 8-byte Folded Spill
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; CHECK-NEXT: stp x29, x30, [sp, #8] // 16-byte Folded Spill
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; CHECK-NEXT: add x29, sp, #8
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; CHECK-NEXT: sub sp, sp, #16
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; CHECK-NEXT: rdsvl x8, #1
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; CHECK-NEXT: mul x9, x8, x8
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; CHECK-NEXT: lsr x15, x9, #4
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; CHECK-NEXT: bl __chkstk
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; CHECK-NEXT: sub x9, sp, x15, lsl #4
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; CHECK-NEXT: mov sp, x9
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; CHECK-NEXT: sub x10, x29, #24
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; CHECK-NEXT: stp x9, x8, [x29, #-24]
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; CHECK-NEXT: msr TPIDR2_EL0, x10
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; CHECK-NEXT: bl private_za_callee
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; CHECK-NEXT: smstart za
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; CHECK-NEXT: mrs x8, TPIDR2_EL0
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; CHECK-NEXT: sub x0, x29, #24
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; CHECK-NEXT: cbnz x8, .LBB0_2
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; CHECK-NEXT: // %bb.1:
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; CHECK-NEXT: bl __arm_tpidr2_restore
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; CHECK-NEXT: .LBB0_2:
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; CHECK-NEXT: msr TPIDR2_EL0, xzr
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; CHECK-NEXT: sub sp, x29, #8
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; CHECK-NEXT: ldp x29, x30, [sp, #8] // 16-byte Folded Reload
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; CHECK-NEXT: ldr x19, [sp], #32 // 8-byte Folded Reload
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; CHECK-NEXT: ret
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call void @private_za_callee()
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ret void
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}
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