test/CodeGen/AVR/std-ldd-tiny.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc < %s -mtriple=avr -mcpu=atmega328 | FileCheck %s
; RUN: llc < %s -mtriple=avr -mcpu=attiny10 | FileCheck %s --check-prefix=TINY

declare void @foo()
declare void @bar(i8, i8, i8)
declare void @baz(i8, ...)

define void @spill_across_call(i8 %a, i8 %b, i8 %c) {
; CHECK-LABEL: spill_across_call:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    push r15
; CHECK-NEXT:    push r16
; CHECK-NEXT:    push r17
; CHECK-NEXT:    mov r17, r20
; CHECK-NEXT:    mov r16, r22
; CHECK-NEXT:    mov r15, r24
; CHECK-NEXT:    call foo
; CHECK-NEXT:    mov r24, r15
; CHECK-NEXT:    mov r22, r16
; CHECK-NEXT:    mov r20, r17
; CHECK-NEXT:    call bar
; CHECK-NEXT:    pop r17
; CHECK-NEXT:    pop r16
; CHECK-NEXT:    pop r15
; CHECK-NEXT:    ret
;
; TINY-LABEL: spill_across_call:
; TINY:       ; %bb.0:
; TINY-NEXT:    push r18
; TINY-NEXT:    push r19
; TINY-NEXT:    push r28
; TINY-NEXT:    push r29
; TINY-NEXT:    in r28, 61
; TINY-NEXT:    clr r29
; TINY-NEXT:    subi r28, 1
; TINY-NEXT:    sbci r29, 0
; TINY-NEXT:    out 61, r28
; TINY-NEXT:    in r16, 63
; TINY-NEXT:    subi r28, 255
; TINY-NEXT:    sbci r29, 255
; TINY-NEXT:    st Y, r20 ; 1-byte Folded Spill
; TINY-NEXT:    subi r28, 1
; TINY-NEXT:    sbci r29, 0
; TINY-NEXT:    out 63, r16
; TINY-NEXT:    mov r19, r22
; TINY-NEXT:    mov r18, r24
; TINY-NEXT:    rcall foo
; TINY-NEXT:    mov r24, r18
; TINY-NEXT:    mov r22, r19
; TINY-NEXT:    in r16, 63
; TINY-NEXT:    subi r28, 255
; TINY-NEXT:    sbci r29, 255
; TINY-NEXT:    ld r20, Y ; 1-byte Folded Reload
; TINY-NEXT:    subi r28, 1
; TINY-NEXT:    sbci r29, 0
; TINY-NEXT:    out 63, r16
; TINY-NEXT:    rcall bar
; TINY-NEXT:    subi r28, 255
; TINY-NEXT:    sbci r29, 255
; TINY-NEXT:    out 61, r28
; TINY-NEXT:    pop r29
; TINY-NEXT:    pop r28
; TINY-NEXT:    pop r19
; TINY-NEXT:    pop r18
; TINY-NEXT:    ret
  call void @foo()
  call void @bar(i8 %a, i8 %b, i8 %c)
  ret void
}

define void @stack_arg_no_fp(i8 %x) {
; CHECK-LABEL: stack_arg_no_fp:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    in r30, 61
; CHECK-NEXT:    in r31, 62
; CHECK-NEXT:    subi r30, 1
; CHECK-NEXT:    sbci r31, 0
; CHECK-NEXT:    in r0, 63
; CHECK-NEXT:    cli
; CHECK-NEXT:    out 62, r31
; CHECK-NEXT:    out 63, r0
; CHECK-NEXT:    out 61, r30
; CHECK-NEXT:    std Z+1, r24
; CHECK-NEXT:    call baz
; CHECK-NEXT:    in r30, 61
; CHECK-NEXT:    in r31, 62
; CHECK-NEXT:    adiw r30, 1
; CHECK-NEXT:    in r0, 63
; CHECK-NEXT:    cli
; CHECK-NEXT:    out 62, r31
; CHECK-NEXT:    out 63, r0
; CHECK-NEXT:    out 61, r30
; CHECK-NEXT:    ret
;
; TINY-LABEL: stack_arg_no_fp:
; TINY:       ; %bb.0:
; TINY-NEXT:    in r30, 61
; TINY-NEXT:    clr r31
; TINY-NEXT:    subi r30, 1
; TINY-NEXT:    sbci r31, 0
; TINY-NEXT:    out 61, r30
; TINY-NEXT:    subi r30, 255
; TINY-NEXT:    sbci r31, 255
; TINY-NEXT:    st Z, r24
; TINY-NEXT:    subi r30, 1
; TINY-NEXT:    sbci r31, 0
; TINY-NEXT:    rcall baz
; TINY-NEXT:    in r30, 61
; TINY-NEXT:    clr r31
; TINY-NEXT:    subi r30, 255
; TINY-NEXT:    sbci r31, 255
; TINY-NEXT:    out 61, r30
; TINY-NEXT:    ret
  call void (i8, ...) @baz(i8 %x)
  ret void
}