xref: /llvm-project/llvm/test/CodeGen/ARM/ParallelDSP/blocks.ll (revision 0dba791a25e7e520760e0c5127434a0377bc50db) 
1; RUN: opt -arm-parallel-dsp -mtriple=armv7-a -S %s -o - | FileCheck %s
2
3; CHECK-LABEL: single_block
4; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
5; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]]
6; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
7; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]]
8; CHECK: call i32 @llvm.arm.smlad(i32 [[A]], i32 [[B]], i32 %acc)
9define i32 @single_block(i16* %a, i16* %b, i32 %acc) {
10entry:
11  %ld.a.0 = load i16, i16* %a
12  %sext.a.0 = sext i16 %ld.a.0 to i32
13  %ld.b.0 = load i16, i16* %b
14  %sext.b.0 = sext i16 %ld.b.0 to i32
15  %mul.0 = mul i32 %sext.a.0, %sext.b.0
16  %addr.a.1 = getelementptr i16, i16* %a, i32 1
17  %addr.b.1 = getelementptr i16, i16* %b, i32 1
18  %ld.a.1 = load i16, i16* %addr.a.1
19  %sext.a.1 = sext i16 %ld.a.1 to i32
20  %ld.b.1 = load i16, i16* %addr.b.1
21  %sext.b.1 = sext i16 %ld.b.1 to i32
22  %mul.1 = mul i32 %sext.a.1, %sext.b.1
23  %add = add i32 %mul.0, %mul.1
24  %res = add i32 %add, %acc
25  ret i32 %res
26}
27
28; CHECK-LABEL: multi_block
29; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
30; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]]
31; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
32; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]]
33; CHECK:  call i32 @llvm.arm.smlad(i32 [[A]], i32 [[B]], i32 0)
34define i32 @multi_block(i16* %a, i16* %b, i32 %acc) {
35entry:
36  %ld.a.0 = load i16, i16* %a
37  %sext.a.0 = sext i16 %ld.a.0 to i32
38  %ld.b.0 = load i16, i16* %b
39  %sext.b.0 = sext i16 %ld.b.0 to i32
40  %mul.0 = mul i32 %sext.a.0, %sext.b.0
41  %addr.a.1 = getelementptr i16, i16* %a, i32 1
42  %addr.b.1 = getelementptr i16, i16* %b, i32 1
43  %ld.a.1 = load i16, i16* %addr.a.1
44  %sext.a.1 = sext i16 %ld.a.1 to i32
45  %ld.b.1 = load i16, i16* %addr.b.1
46  %sext.b.1 = sext i16 %ld.b.1 to i32
47  %mul.1 = mul i32 %sext.a.1, %sext.b.1
48  %add = add i32 %mul.0, %mul.1
49  br label %bb.1
50
51bb.1:
52  %res = add i32 %add, %acc
53  ret i32 %res
54}
55
56; CHECK-LABEL: multi_block_1
57; CHECK-NOT: call i32 @llvm.arm.smlad
58define i32 @multi_block_1(i16* %a, i16* %b, i32 %acc) {
59entry:
60  %ld.a.0 = load i16, i16* %a
61  %sext.a.0 = sext i16 %ld.a.0 to i32
62  %ld.b.0 = load i16, i16* %b
63  %sext.b.0 = sext i16 %ld.b.0 to i32
64  %mul.0 = mul i32 %sext.a.0, %sext.b.0
65  br label %bb.1
66
67bb.1:
68  %addr.a.1 = getelementptr i16, i16* %a, i32 1
69  %addr.b.1 = getelementptr i16, i16* %b, i32 1
70  %ld.a.1 = load i16, i16* %addr.a.1
71  %sext.a.1 = sext i16 %ld.a.1 to i32
72  %ld.b.1 = load i16, i16* %addr.b.1
73  %sext.b.1 = sext i16 %ld.b.1 to i32
74  %mul.1 = mul i32 %sext.a.1, %sext.b.1
75  %add = add i32 %mul.0, %mul.1
76  %res = add i32 %add, %acc
77  ret i32 %res
78}
79
80