llvm/test/CodeGen/LoongArch/merge-load-store.ll

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

define void @merge_load_store(ptr noalias %src, ptr noalias %dst) unnamed_addr {
; LA32-LABEL: merge_load_store:
; LA32:       # %bb.0: # %start
; LA32-NEXT:    ld.b $a2, $a0, 0
; LA32-NEXT:    ld.b $a3, $a0, 1
; LA32-NEXT:    ld.b $a4, $a0, 2
; LA32-NEXT:    ld.b $a5, $a0, 3
; LA32-NEXT:    st.b $a2, $a1, 0
; LA32-NEXT:    st.b $a3, $a1, 1
; LA32-NEXT:    st.b $a4, $a1, 2
; LA32-NEXT:    st.b $a5, $a1, 3
; LA32-NEXT:    ld.b $a2, $a0, 4
; LA32-NEXT:    ld.b $a3, $a0, 5
; LA32-NEXT:    ld.b $a4, $a0, 6
; LA32-NEXT:    ld.b $a0, $a0, 7
; LA32-NEXT:    st.b $a2, $a1, 4
; LA32-NEXT:    st.b $a3, $a1, 5
; LA32-NEXT:    st.b $a4, $a1, 6
; LA32-NEXT:    st.b $a0, $a1, 7
; LA32-NEXT:    ret
;
; LA64-LABEL: merge_load_store:
; LA64:       # %bb.0: # %start
; LA64-NEXT:    ld.d $a0, $a0, 0
; LA64-NEXT:    st.d $a0, $a1, 0
; LA64-NEXT:    ret
start:
  %_3 = load i8, ptr %src, align 1
  store i8 %_3, ptr %dst, align 1
  %0 = getelementptr inbounds i8, ptr %src, i64 1
  %_4 = load i8, ptr %0, align 1
  %1 = getelementptr inbounds i8, ptr %dst, i64 1
  store i8 %_4, ptr %1, align 1
  %2 = getelementptr inbounds i8, ptr %src, i64 2
  %_5 = load i8, ptr %2, align 1
  %3 = getelementptr inbounds i8, ptr %dst, i64 2
  store i8 %_5, ptr %3, align 1
  %4 = getelementptr inbounds i8, ptr %src, i64 3
  %_6 = load i8, ptr %4, align 1
  %5 = getelementptr inbounds i8, ptr %dst, i64 3
  store i8 %_6, ptr %5, align 1
  %6 = getelementptr inbounds i8, ptr %src, i64 4
  %_7 = load i8, ptr %6, align 1
  %7 = getelementptr inbounds i8, ptr %dst, i64 4
  store i8 %_7, ptr %7, align 1
  %8 = getelementptr inbounds i8, ptr %src, i64 5
  %_8 = load i8, ptr %8, align 1
  %9 = getelementptr inbounds i8, ptr %dst, i64 5
  store i8 %_8, ptr %9, align 1
  %10 = getelementptr inbounds i8, ptr %src, i64 6
  %_9 = load i8, ptr %10, align 1
  %11 = getelementptr inbounds i8, ptr %dst, i64 6
  store i8 %_9, ptr %11, align 1
  %12 = getelementptr inbounds i8, ptr %src, i64 7
  %_10 = load i8, ptr %12, align 1
  %13 = getelementptr inbounds i8, ptr %dst, i64 7
  store i8 %_10, ptr %13, align 1
  ret void
}