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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/sme-must-save-lr-for-vg.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

50 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -O0 < %s | FileCheck %s
; Example of locally streaming function that (at -O0) must preserve the LR (X30)
; before calling __arm_get_current_vg.
define void @foo() "aarch64_pstate_sm_body" {
; CHECK-LABEL: foo:
; CHECK: // %bb.0:
; CHECK-NEXT: stp d15, d14, [sp, #-96]! // 16-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 96
; CHECK-NEXT: stp d13, d12, [sp, #16] // 16-byte Folded Spill
; CHECK-NEXT: stp d11, d10, [sp, #32] // 16-byte Folded Spill
; CHECK-NEXT: stp d9, d8, [sp, #48] // 16-byte Folded Spill
; CHECK-NEXT: stp x29, x30, [sp, #64] // 16-byte Folded Spill
; CHECK-NEXT: bl __arm_get_current_vg
; CHECK-NEXT: str x0, [sp, #80] // 8-byte Spill
; CHECK-NEXT: .cfi_offset vg, -16
; CHECK-NEXT: .cfi_offset w30, -24
; CHECK-NEXT: .cfi_offset w29, -32
; CHECK-NEXT: .cfi_offset b8, -40
; CHECK-NEXT: .cfi_offset b9, -48
; CHECK-NEXT: .cfi_offset b10, -56
; CHECK-NEXT: .cfi_offset b11, -64
; CHECK-NEXT: .cfi_offset b12, -72
; CHECK-NEXT: .cfi_offset b13, -80
; CHECK-NEXT: .cfi_offset b14, -88
; CHECK-NEXT: .cfi_offset b15, -96
; CHECK-NEXT: smstart sm
; CHECK-NEXT: smstop sm
; CHECK-NEXT: ldp x29, x30, [sp, #64] // 16-byte Folded Reload
; CHECK-NEXT: ldp d9, d8, [sp, #48] // 16-byte Folded Reload
; CHECK-NEXT: ldp d11, d10, [sp, #32] // 16-byte Folded Reload
; CHECK-NEXT: ldp d13, d12, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: ldp d15, d14, [sp], #96 // 16-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore vg
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: .cfi_restore w29
; CHECK-NEXT: .cfi_restore b8
; CHECK-NEXT: .cfi_restore b9
; CHECK-NEXT: .cfi_restore b10
; CHECK-NEXT: .cfi_restore b11
; CHECK-NEXT: .cfi_restore b12
; CHECK-NEXT: .cfi_restore b13
; CHECK-NEXT: .cfi_restore b14
; CHECK-NEXT: .cfi_restore b15
; CHECK-NEXT: ret
ret void
}