1 ; RUN: opt -mtriple=arm-arm-eabi -mcpu=cortex-m33 < %s -arm-parallel-dsp -S | FileCheck %s
3 ; The loads are not consecutive: check that the rewrite isn't triggered.
5 ; CHECK-NOT: call i32 @llvm.arm.smlad
7 define dso_local i32 @test(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
9 %cmp24 = icmp sgt i32 %arg, 0
10 br i1 %cmp24, label %for.body.preheader, label %for.cond.cleanup
13 %.pre = load i16, i16* %arg3, align 2
14 %.pre27 = load i16, i16* %arg2, align 2
18 %mac1.0.lcssa = phi i32 [ 0, %entry ], [ %add11, %for.body ]
22 %mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
23 %i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
24 %arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
25 %0 = load i16, i16* %arrayidx, align 2
26 %add = add nuw nsw i32 %i.025, 1
27 %arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
28 %1 = load i16, i16* %arrayidx1, align 2
29 %arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
30 %2 = load i16, i16* %arrayidx3, align 2
31 %conv = sext i16 %2 to i32
32 %conv4 = sext i16 %0 to i32
33 %mul = mul nsw i32 %conv, %conv4
35 ; Here we add another constants offset of 2, to make sure the
36 ; loads to %3 and %2 are not consecutive:
38 %add5 = add nuw nsw i32 %i.025, 2
39 %arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add5
40 %3 = load i16, i16* %arrayidx6, align 2
42 %conv7 = sext i16 %3 to i32
43 %conv8 = sext i16 %1 to i32
44 %mul9 = mul nsw i32 %conv7, %conv8
45 %add10 = add i32 %mul, %mac1.026
46 %add11 = add i32 %add10, %mul9
47 %exitcond = icmp ne i32 %add, %arg
48 br i1 %exitcond, label %for.body, label %for.cond.cleanup