llvm/test/CodeGen/RISCV/fold-addi-loadstore-zilsd.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -mattr=+zdinx,+zilsd -verify-machineinstrs \
; RUN:   -code-model=medium < %s | FileCheck %s

@g_0 = global double 0.0

define double @load_g_0() nounwind {
; CHECK-LABEL: load_g_0:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:  .Lpcrel_hi0:
; CHECK-NEXT:    auipc a0, %pcrel_hi(g_0)
; CHECK-NEXT:    ld a0, %pcrel_lo(.Lpcrel_hi0)(a0)
; CHECK-NEXT:    ret
entry:
  %0 = load double, ptr @g_0
  ret double %0
}

define void @store_g_0() nounwind {
; CHECK-LABEL: store_g_0:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:  .Lpcrel_hi1:
; CHECK-NEXT:    auipc a0, %pcrel_hi(g_0)
; CHECK-NEXT:    sd zero, %pcrel_lo(.Lpcrel_hi1)(a0)
; CHECK-NEXT:    ret
entry:
  store double 0.0, ptr @g_0
  ret void
}

%struct.S = type { double, double }

define double @fold_addi_from_different_bb(i32 %k, i32 %n, ptr %a) nounwind {
; CHECK-LABEL: fold_addi_from_different_bb:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    addi sp, sp, -32
; CHECK-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
; CHECK-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
; CHECK-NEXT:    sw s1, 20(sp) # 4-byte Folded Spill
; CHECK-NEXT:    sw s2, 16(sp) # 4-byte Folded Spill
; CHECK-NEXT:    sw s3, 12(sp) # 4-byte Folded Spill
; CHECK-NEXT:    sw s4, 8(sp) # 4-byte Folded Spill
; CHECK-NEXT:    blez a1, .LBB2_3
; CHECK-NEXT:  # %bb.1: # %for.body.lr.ph
; CHECK-NEXT:    mv s2, a2
; CHECK-NEXT:    mv s3, a1
; CHECK-NEXT:    li s0, 0
; CHECK-NEXT:    li s1, 0
; CHECK-NEXT:    slli a0, a0, 4
; CHECK-NEXT:    add s4, a2, a0
; CHECK-NEXT:  .LBB2_2: # %for.body
; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    mv a0, s2
; CHECK-NEXT:    call f
; CHECK-NEXT:    ld a0, 8(s4)
; CHECK-NEXT:    addi s3, s3, -1
; CHECK-NEXT:    fadd.d s0, a0, s0
; CHECK-NEXT:    bnez s3, .LBB2_2
; CHECK-NEXT:    j .LBB2_4
; CHECK-NEXT:  .LBB2_3:
; CHECK-NEXT:    li s0, 0
; CHECK-NEXT:    li s1, 0
; CHECK-NEXT:  .LBB2_4: # %for.cond.cleanup
; CHECK-NEXT:    mv a0, s0
; CHECK-NEXT:    mv a1, s1
; CHECK-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
; CHECK-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
; CHECK-NEXT:    lw s1, 20(sp) # 4-byte Folded Reload
; CHECK-NEXT:    lw s2, 16(sp) # 4-byte Folded Reload
; CHECK-NEXT:    lw s3, 12(sp) # 4-byte Folded Reload
; CHECK-NEXT:    lw s4, 8(sp) # 4-byte Folded Reload
; CHECK-NEXT:    addi sp, sp, 32
; CHECK-NEXT:    ret
entry:
  %cmp4 = icmp sgt i32 %n, 0
  br i1 %cmp4, label %for.body.lr.ph, label %for.cond.cleanup

for.body.lr.ph:                                   ; preds = %entry
  %y = getelementptr inbounds %struct.S, ptr %a, i32 %k, i32 1
  br label %for.body

for.cond.cleanup:                                 ; preds = %for.body, %entry
  %s.0.lcssa = phi double [ 0.0, %entry ], [ %add, %for.body ]
  ret double %s.0.lcssa

for.body:                                         ; preds = %for.body.lr.ph, %for.body
  %i.06 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
  %s.05 = phi double [ 0.0, %for.body.lr.ph ], [ %add, %for.body ]
  call void @f(ptr %a)
  %0 = load double, ptr %y, align 8
  %add = fadd double %0, %s.05
  %inc = add nuw nsw i32 %i.06, 1
  %exitcond.not = icmp eq i32 %inc, %n
  br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}

declare void @f(ptr)

define void @split_offset(ptr %dest, double %x) {
; CHECK-LABEL: split_offset:
; CHECK:       # %bb.0:
; CHECK-NEXT:    mv a3, a2
; CHECK-NEXT:    addi a0, a0, 2047
; CHECK-NEXT:    mv a2, a1
; CHECK-NEXT:    sd a2, 1(a0)
; CHECK-NEXT:    sd a2, 9(a0)
; CHECK-NEXT:    sd a2, 17(a0)
; CHECK-NEXT:    sd a2, 25(a0)
; CHECK-NEXT:    ret
  %p1 = getelementptr double, ptr %dest, i32 256
  store double %x, ptr %p1
  %p2 = getelementptr double, ptr %dest, i32 257
  store double %x, ptr %p2
  %p3 = getelementptr double, ptr %dest, i32 258
  store double %x, ptr %p3
  %p4 = getelementptr double, ptr %dest, i32 259
  store double %x, ptr %p4
  ret void
}