[Test] memcpy src 16|8 align dst 16|8 align variable size

Author: chenqian

llvm/test/CodeGen/RISCV/esp32p4-memcpy-var.ll

@@ -0,0 +1,55 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S -mtriple=riscv32-esp-unknown-elf < %s | FileCheck %s --check-prefix=NOPASS
+target datalayout = "e-m:e-p:32:32-i64:64-n32-S128"
+target triple = "riscv32-esp-unknown-elf"
+
+define void @test_src16_dst16_variable_size(ptr %a, ptr %b, i32 %size) {
+; NOPASS-LABEL: define void @test_src16_dst16_variable_size(
+; NOPASS-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[SIZE:%.*]]) {
+; NOPASS-NEXT:  [[ENTRY:.*:]]
+; NOPASS-NEXT:    tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 16 [[A]], ptr noundef nonnull align 16 [[B]], i32 [[SIZE]], i1 false)
+; NOPASS-NEXT:    ret void
+;
+entry:
+  tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 16 %a, ptr noundef nonnull align 16 %b, i32 %size, i1 false)
+  ret void
+}
+
+define void @test_src16_dst8_variable_size(ptr %a, ptr %b, i32 %size) {
+; NOPASS-LABEL: define void @test_src16_dst8_variable_size(
+; NOPASS-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[SIZE:%.*]]) {
+; NOPASS-NEXT:  [[ENTRY:.*:]]
+; NOPASS-NEXT:    tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 8 [[A]], ptr noundef nonnull align 16 [[B]], i32 [[SIZE]], i1 false)
+; NOPASS-NEXT:    ret void
+;
+entry:
+  tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 8 %a, ptr noundef nonnull align 16 %b, i32 %size, i1 false)
+  ret void
+}
+
+define void @test_src8_dst16_variable_size(ptr %a, ptr %b, i32 %size) {
+; NOPASS-LABEL: define void @test_src8_dst16_variable_size(
+; NOPASS-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[SIZE:%.*]]) {
+; NOPASS-NEXT:  [[ENTRY:.*:]]
+; NOPASS-NEXT:    tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 16 [[A]], ptr noundef nonnull align 8 [[B]], i32 [[SIZE]], i1 false)
+; NOPASS-NEXT:    ret void
+;
+entry:
+  tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 16 %a, ptr noundef nonnull align 8 %b, i32 %size, i1 false)
+  ret void
+}
+
+define void @test_src8_dst8_variable_size(ptr %a, ptr %b, i32 %size) {
+; NOPASS-LABEL: define void @test_src8_dst8_variable_size(
+; NOPASS-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[SIZE:%.*]]) {
+; NOPASS-NEXT:  [[ENTRY:.*:]]
+; NOPASS-NEXT:    tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 8 [[A]], ptr noundef nonnull align 8 [[B]], i32 [[SIZE]], i1 false)
+; NOPASS-NEXT:    ret void
+;
+entry:
+  tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 8 %a, ptr noundef nonnull align 8 %b, i32 %size, i1 false)
+  ret void
+}
+
+declare void @llvm.memcpy.p0.p0.i32(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i32, i1 immarg)
+