| Brendon Cahoon | 254f889 | 2016-07-29 16:44:44 +0000 | [diff] [blame^] | 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 | |