1 ; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner < %s | FileCheck %s 2 ; RUN: llc -march=hexagon -mcpu=hexagonv5 -O3 < %s | FileCheck %s 3 4 ; Multiply and accumulate 5 ; CHECK: mpyi([[REG0:r([0-9]+)]], [[REG1:r([0-9]+)]]) 6 ; CHECK-NEXT: add(r{{[0-9]+}}, #4) 7 ; CHECK-NEXT: [[REG0]] = memw(r{{[0-9]+}} + r{{[0-9]+}}<<#0) 8 ; CHECK-NEXT: [[REG1]] = memw(r{{[0-9]+}} + r{{[0-9]+}}<<#0) 9 ; CHECK-NEXT: endloop0 10 11 define i32 @foo(i32* %a, i32* %b, i32 %n) { 12 entry: 13 br label %for.body 14 15 for.body: 16 %sum.03 = phi i32 [ 0, %entry ], [ %add, %for.body ] 17 %arrayidx.phi = phi i32* [ %a, %entry ], [ %arrayidx.inc, %for.body ] 18 %arrayidx1.phi = phi i32* [ %b, %entry ], [ %arrayidx1.inc, %for.body ] 19 %i.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 20 %0 = load i32, i32* %arrayidx.phi, align 4 21 %1 = load i32, i32* %arrayidx1.phi, align 4 22 %mul = mul nsw i32 %1, %0 23 %add = add nsw i32 %mul, %sum.03 24 %inc = add nsw i32 %i.02, 1 25 %exitcond = icmp eq i32 %inc, 10000 26 %arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1 27 %arrayidx1.inc = getelementptr i32, i32* %arrayidx1.phi, i32 1 28 br i1 %exitcond, label %for.end, label %for.body 29 30 for.end: 31 ret i32 %add 32 } 33 34
