llvm/test/CodeGen/LoongArch/calling-conv-preserve-most.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=loongarch32 < %s | FileCheck %s -check-prefix=LA32
; RUN: llc -mtriple=loongarch64 < %s | FileCheck %s -check-prefix=LA64

; Check the PreserveMost calling convention works.

declare void @standard_cc_func()
declare preserve_mostcc void @preserve_mostcc_func()

define preserve_mostcc void @preserve_mostcc1() nounwind {
; LA32-LABEL: preserve_mostcc1:
; LA32:       # %bb.0: # %entry
; LA32-NEXT:    addi.w $sp, $sp, -64
; LA32-NEXT:    st.w $ra, $sp, 60 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a0, $sp, 56 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a1, $sp, 52 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a2, $sp, 48 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a3, $sp, 44 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a4, $sp, 40 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a5, $sp, 36 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a6, $sp, 32 # 4-byte Folded Spill
; LA32-NEXT:    st.w $a7, $sp, 28 # 4-byte Folded Spill
; LA32-NEXT:    st.w $t4, $sp, 24 # 4-byte Folded Spill
; LA32-NEXT:    st.w $t5, $sp, 20 # 4-byte Folded Spill
; LA32-NEXT:    st.w $t6, $sp, 16 # 4-byte Folded Spill
; LA32-NEXT:    st.w $t7, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT:    bl standard_cc_func
; LA32-NEXT:    ld.w $t7, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $t6, $sp, 16 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $t5, $sp, 20 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $t4, $sp, 24 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a7, $sp, 28 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a6, $sp, 32 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a5, $sp, 36 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a4, $sp, 40 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a3, $sp, 44 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a2, $sp, 48 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a1, $sp, 52 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $a0, $sp, 56 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $ra, $sp, 60 # 4-byte Folded Reload
; LA32-NEXT:    addi.w $sp, $sp, 64
; LA32-NEXT:    ret
;
; LA64-LABEL: preserve_mostcc1:
; LA64:       # %bb.0: # %entry
; LA64-NEXT:    addi.d $sp, $sp, -112
; LA64-NEXT:    st.d $ra, $sp, 104 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a0, $sp, 96 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a1, $sp, 88 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a2, $sp, 80 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a3, $sp, 72 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a4, $sp, 64 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a5, $sp, 56 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a6, $sp, 48 # 8-byte Folded Spill
; LA64-NEXT:    st.d $a7, $sp, 40 # 8-byte Folded Spill
; LA64-NEXT:    st.d $t4, $sp, 32 # 8-byte Folded Spill
; LA64-NEXT:    st.d $t5, $sp, 24 # 8-byte Folded Spill
; LA64-NEXT:    st.d $t6, $sp, 16 # 8-byte Folded Spill
; LA64-NEXT:    st.d $t7, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT:    pcaddu18i $ra, %call36(standard_cc_func)
; LA64-NEXT:    jirl $ra, $ra, 0
; LA64-NEXT:    ld.d $t7, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $t6, $sp, 16 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $t5, $sp, 24 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $t4, $sp, 32 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a7, $sp, 40 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a6, $sp, 48 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a5, $sp, 56 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a4, $sp, 64 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a3, $sp, 72 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a2, $sp, 80 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a1, $sp, 88 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $a0, $sp, 96 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $ra, $sp, 104 # 8-byte Folded Reload
; LA64-NEXT:    addi.d $sp, $sp, 112
; LA64-NEXT:    ret
entry:
  call void @standard_cc_func()
  ret void
}

define preserve_mostcc void @preserve_mostcc2() nounwind {
; LA32-LABEL: preserve_mostcc2:
; LA32:       # %bb.0:
; LA32-NEXT:    addi.w $sp, $sp, -16
; LA32-NEXT:    st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT:    bl preserve_mostcc_func
; LA32-NEXT:    ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT:    addi.w $sp, $sp, 16
; LA32-NEXT:    ret
;
; LA64-LABEL: preserve_mostcc2:
; LA64:       # %bb.0:
; LA64-NEXT:    addi.d $sp, $sp, -16
; LA64-NEXT:    st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT:    pcaddu18i $ra, %call36(preserve_mostcc_func)
; LA64-NEXT:    jirl $ra, $ra, 0
; LA64-NEXT:    ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT:    addi.d $sp, $sp, 16
; LA64-NEXT:    ret
  call preserve_mostcc void @preserve_mostcc_func()
  ret void
}

define void @preserve_mostcc3() nounwind {
; LA32-LABEL: preserve_mostcc3:
; LA32:       # %bb.0:
; LA32-NEXT:    addi.w $sp, $sp, -16
; LA32-NEXT:    st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s0, $sp, 8 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s1, $sp, 4 # 4-byte Folded Spill
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $a0, $t0
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $a1, $t1
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $a2, $t2
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $a3, $t3
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $a4, $t8
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    bl preserve_mostcc_func
; LA32-NEXT:    move $t0, $a0
; LA32-NEXT:    move $t1, $a1
; LA32-NEXT:    move $t2, $a2
; LA32-NEXT:    move $t3, $a3
; LA32-NEXT:    move $t8, $a4
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    ld.w $s1, $sp, 4 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s0, $sp, 8 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT:    addi.w $sp, $sp, 16
; LA32-NEXT:    ret
;
; LA64-LABEL: preserve_mostcc3:
; LA64:       # %bb.0:
; LA64-NEXT:    addi.d $sp, $sp, -96
; LA64-NEXT:    st.d $ra, $sp, 88 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s0, $sp, 80 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s1, $sp, 72 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs0, $sp, 64 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs1, $sp, 56 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs2, $sp, 48 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs3, $sp, 40 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs4, $sp, 32 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs5, $sp, 24 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs6, $sp, 16 # 8-byte Folded Spill
; LA64-NEXT:    fst.d $fs7, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $a0, $t0
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $a1, $t1
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $a2, $t2
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $a3, $t3
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $a4, $t8
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    pcaddu18i $ra, %call36(preserve_mostcc_func)
; LA64-NEXT:    jirl $ra, $ra, 0
; LA64-NEXT:    move $t0, $a0
; LA64-NEXT:    move $t1, $a1
; LA64-NEXT:    move $t2, $a2
; LA64-NEXT:    move $t3, $a3
; LA64-NEXT:    move $t8, $a4
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    fld.d $fs7, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs6, $sp, 16 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs5, $sp, 24 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs4, $sp, 32 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs3, $sp, 40 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs2, $sp, 48 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs1, $sp, 56 # 8-byte Folded Reload
; LA64-NEXT:    fld.d $fs0, $sp, 64 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s1, $sp, 72 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s0, $sp, 80 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $ra, $sp, 88 # 8-byte Folded Reload
; LA64-NEXT:    addi.d $sp, $sp, 96
; LA64-NEXT:    ret
  %1 = call i32 asm sideeffect "", "={r12}"() nounwind
  %2 = call i32 asm sideeffect "", "={r13}"() nounwind
  %3 = call i32 asm sideeffect "", "={r14}"() nounwind
  %4 = call i32 asm sideeffect "", "={r15}"() nounwind
  %5 = call i32 asm sideeffect "", "={r20}"() nounwind
  %6 = call i32 asm sideeffect "", "={r23}"() nounwind
  %7 = call i32 asm sideeffect "", "={r24}"() nounwind
  call preserve_mostcc void @preserve_mostcc_func()
  call void asm sideeffect "", "{r12},{r13},{r14},{r15},{r20},{r23},{r24}"(i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7)
  ret void
}

define void @preserve_mostcc4() nounwind {
; LA32-LABEL: preserve_mostcc4:
; LA32:       # %bb.0:
; LA32-NEXT:    addi.w $sp, $sp, -32
; LA32-NEXT:    st.w $ra, $sp, 28 # 4-byte Folded Spill
; LA32-NEXT:    st.w $fp, $sp, 24 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s0, $sp, 20 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s1, $sp, 16 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s2, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s3, $sp, 8 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s4, $sp, 4 # 4-byte Folded Spill
; LA32-NEXT:    st.w $s5, $sp, 0 # 4-byte Folded Spill
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $fp, $t0
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $s2, $t1
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $s3, $t2
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $s4, $t3
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    move $s5, $t8
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    bl standard_cc_func
; LA32-NEXT:    move $t0, $fp
; LA32-NEXT:    move $t1, $s2
; LA32-NEXT:    move $t2, $s3
; LA32-NEXT:    move $t3, $s4
; LA32-NEXT:    move $t8, $s5
; LA32-NEXT:    #APP
; LA32-NEXT:    #NO_APP
; LA32-NEXT:    ld.w $s5, $sp, 0 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s4, $sp, 4 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s3, $sp, 8 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s2, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s1, $sp, 16 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $s0, $sp, 20 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $fp, $sp, 24 # 4-byte Folded Reload
; LA32-NEXT:    ld.w $ra, $sp, 28 # 4-byte Folded Reload
; LA32-NEXT:    addi.w $sp, $sp, 32
; LA32-NEXT:    ret
;
; LA64-LABEL: preserve_mostcc4:
; LA64:       # %bb.0:
; LA64-NEXT:    addi.d $sp, $sp, -80
; LA64-NEXT:    st.d $ra, $sp, 72 # 8-byte Folded Spill
; LA64-NEXT:    st.d $fp, $sp, 64 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s0, $sp, 56 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s1, $sp, 48 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s2, $sp, 40 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s3, $sp, 32 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s4, $sp, 24 # 8-byte Folded Spill
; LA64-NEXT:    st.d $s5, $sp, 16 # 8-byte Folded Spill
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $fp, $t0
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $s2, $t1
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $s3, $t2
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $s4, $t3
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    move $s5, $t8
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    pcaddu18i $ra, %call36(standard_cc_func)
; LA64-NEXT:    jirl $ra, $ra, 0
; LA64-NEXT:    move $t0, $fp
; LA64-NEXT:    move $t1, $s2
; LA64-NEXT:    move $t2, $s3
; LA64-NEXT:    move $t3, $s4
; LA64-NEXT:    move $t8, $s5
; LA64-NEXT:    #APP
; LA64-NEXT:    #NO_APP
; LA64-NEXT:    ld.d $s5, $sp, 16 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s4, $sp, 24 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s3, $sp, 32 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s2, $sp, 40 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s1, $sp, 48 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $s0, $sp, 56 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $fp, $sp, 64 # 8-byte Folded Reload
; LA64-NEXT:    ld.d $ra, $sp, 72 # 8-byte Folded Reload
; LA64-NEXT:    addi.d $sp, $sp, 80
; LA64-NEXT:    ret
  %1 = call i32 asm sideeffect "", "={r12}"() nounwind
  %2 = call i32 asm sideeffect "", "={r13}"() nounwind
  %3 = call i32 asm sideeffect "", "={r14}"() nounwind
  %4 = call i32 asm sideeffect "", "={r15}"() nounwind
  %5 = call i32 asm sideeffect "", "={r20}"() nounwind
  %6 = call i32 asm sideeffect "", "={r23}"() nounwind
  %7 = call i32 asm sideeffect "", "={r24}"() nounwind
  call void @standard_cc_func()
  call void asm sideeffect "", "{r12},{r13},{r14},{r15},{r20},{r23},{r24}"(i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7)
  ret void
}