1; RUN: llc -march=hexagon -O2 -mno-pairing -mno-compound < %s | FileCheck %s
2
3; Test to see if we inline calls to memcpy/memmove when
4; the array size is small.
5
6target triple = "hexagon-unknown--elf"
7
8; CHECK-LABEL: f0:
9; CHECK-DAG: [[REG1:r[0-9]*]] = memw(r{{[0-9]*}}+#0)
10; CHECK-DAG: [[REG2:r[0-9]*]] = memuh(r{{[0-9]*}}+#4)
11; CHECK-DAG: [[REG3:r[0-9]*]] = memub(r{{[0-9]*}}+#6)
12; CHECK-DAG: memw(r{{[0-9]*}}+#0) = [[REG1]]
13; CHECK-DAG: memh(r{{[0-9]*}}+#4) = [[REG2]]
14; CHECK-DAG: memb(r{{[0-9]*}}+#6) = [[REG3]]
15
16define i32 @f0(i32* %a0) #0 {
17b0:
18  %v0 = alloca [10 x i32], align 8
19  %v1 = bitcast [10 x i32]* %v0 to i8*
20  %v2 = bitcast i32* %a0 to i8*
21  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %v1, i8* align 4 %v2, i32 7, i1 false)
22  %v3 = getelementptr inbounds [10 x i32], [10 x i32]* %v0, i32 0, i32 0
23  call void @f1(i32* %v3, i32* %a0) #0
24  ret i32 0
25}
26
27declare void @f1(i32*, i32*)
28
29; CHECK-LABEL: f2:
30; CHECK-DAG: [[REG4:r[0-9]*]] = memub(r{{[0-9]*}}+#6)
31; CHECK-DAG: [[REG5:r[0-9]*]] = memuh(r{{[0-9]*}}+#4)
32; CHECK-DAG: [[REG6:r[0-9]*]] = memw(r{{[0-9]*}}+#0)
33; CHECK-DAG: memw(r{{[0-9]*}}+#0) = [[REG6]]
34; CHECK-DAG: memh(r{{[0-9]*}}+#4) = [[REG5]]
35; CHECK-DAG: memb(r{{[0-9]*}}+#6) = [[REG4]]
36
37define i32 @f2(i32* %a0, i32* %a1) #0 {
38b0:
39  %v0 = bitcast i32* %a1 to i8*
40  %v1 = bitcast i32* %a0 to i8*
41  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %v0, i8* align 4 %v1, i32 7, i1 false)
42  tail call void @f1(i32* %a1, i32* %a0) #0
43  ret i32 0
44}
45
46declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) #1
47declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i1) #1
48
49attributes #0 = { nounwind }
50attributes #1 = { argmemonly nounwind }
51