File: sve-varargs.ll

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llvm-toolchain-21 1%3A21.1.6-3
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64--linux-gnu -mattr=+sve < %s | FileCheck %s

declare i32 @sve_printf(ptr, <vscale x 4 x i32>, ...)

@.str_1 = internal constant [6 x i8] c"boo!\0A\00"

define void @foo_nontail(<vscale x 4 x i32> %x) uwtable {
; CHECK-LABEL: foo_nontail:
; CHECK:       // %bb.0:
; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    .cfi_offset w30, -16
; CHECK-NEXT:    adrp x0, .str_1
; CHECK-NEXT:    add x0, x0, :lo12:.str_1
; CHECK-NEXT:    bl sve_printf
; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    .cfi_def_cfa_offset 0
; CHECK-NEXT:    .cfi_restore w30
; CHECK-NEXT:    ret
  call i32 (ptr, <vscale x 4 x i32>, ...) @sve_printf(ptr @.str_1, <vscale x 4 x i32> %x)
  ret void
}

define void @foo_tail(<vscale x 4 x i32> %x) uwtable {
; CHECK-LABEL: foo_tail:
; CHECK:       // %bb.0:
; CHECK-NEXT:    adrp x0, .str_1
; CHECK-NEXT:    add x0, x0, :lo12:.str_1
; CHECK-NEXT:    b sve_printf
  tail call i32 (ptr, <vscale x 4 x i32>, ...) @sve_printf(ptr @.str_1, <vscale x 4 x i32> %x)
  ret void
}