| Geoff Berry | b1e8714 | 2017-07-14 21:44:12 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -falkor-hwpf-fix -mtriple aarch64 -mcpu=falkor | FileCheck %s |
| 2 | ; RUN: opt < %s -S -falkor-hwpf-fix -mtriple aarch64 -mcpu=cortex-a57 | FileCheck %s --check-prefix=NOHWPF |
| 3 | |
| 4 | ; Check that strided access metadata is added to loads in inner loops when compiling for Falkor. |
| 5 | |
| 6 | ; CHECK-LABEL: @hwpf1( |
| 7 | ; CHECK: load i32, i32* %gep, !falkor.strided.access !0 |
| 8 | ; CHECK: load i32, i32* %gep2, !falkor.strided.access !0 |
| 9 | |
| 10 | ; NOHWPF-LABEL: @hwpf1( |
| 11 | ; NOHWPF: load i32, i32* %gep{{$}} |
| 12 | ; NOHWPF: load i32, i32* %gep2{{$}} |
| 13 | define void @hwpf1(i32* %p, i32* %p2) { |
| 14 | entry: |
| 15 | br label %loop |
| 16 | |
| 17 | loop: |
| 18 | %iv = phi i32 [ 0, %entry ], [ %inc, %loop ] |
| 19 | |
| 20 | %gep = getelementptr inbounds i32, i32* %p, i32 %iv |
| 21 | %load = load i32, i32* %gep |
| 22 | |
| 23 | %gep2 = getelementptr inbounds i32, i32* %p2, i32 %iv |
| 24 | %load2 = load i32, i32* %gep2 |
| 25 | |
| 26 | %inc = add i32 %iv, 1 |
| 27 | %exitcnd = icmp uge i32 %inc, 1024 |
| 28 | br i1 %exitcnd, label %exit, label %loop |
| 29 | |
| 30 | exit: |
| 31 | ret void |
| 32 | } |
| 33 | |
| 34 | ; Check that outer loop strided load isn't marked. |
| 35 | ; CHECK-LABEL: @hwpf2( |
| 36 | ; CHECK: load i32, i32* %gep, !falkor.strided.access !0 |
| 37 | ; CHECK: load i32, i32* %gep2{{$}} |
| 38 | |
| 39 | ; NOHWPF-LABEL: @hwpf2( |
| 40 | ; NOHWPF: load i32, i32* %gep{{$}} |
| 41 | ; NOHWPF: load i32, i32* %gep2{{$}} |
| 42 | define void @hwpf2(i32* %p) { |
| 43 | entry: |
| 44 | br label %loop1 |
| 45 | |
| 46 | loop1: |
| 47 | %iv1 = phi i32 [ 0, %entry ], [ %inc1, %loop1.latch ] |
| 48 | %outer.sum = phi i32 [ 0, %entry ], [ %sum, %loop1.latch ] |
| 49 | br label %loop2.header |
| 50 | |
| 51 | loop2.header: |
| 52 | br label %loop2 |
| 53 | |
| 54 | loop2: |
| 55 | %iv2 = phi i32 [ 0, %loop2.header ], [ %inc2, %loop2 ] |
| 56 | %sum = phi i32 [ %outer.sum, %loop2.header ], [ %sum.inc, %loop2 ] |
| 57 | %gep = getelementptr inbounds i32, i32* %p, i32 %iv2 |
| 58 | %load = load i32, i32* %gep |
| 59 | %sum.inc = add i32 %sum, %load |
| 60 | %inc2 = add i32 %iv2, 1 |
| 61 | %exitcnd2 = icmp uge i32 %inc2, 1024 |
| 62 | br i1 %exitcnd2, label %exit2, label %loop2 |
| 63 | |
| 64 | exit2: |
| 65 | %gep2 = getelementptr inbounds i32, i32* %p, i32 %iv1 |
| 66 | %load2 = load i32, i32* %gep2 |
| 67 | br label %loop1.latch |
| 68 | |
| 69 | loop1.latch: |
| 70 | %inc1 = add i32 %iv1, 1 |
| 71 | %exitcnd1 = icmp uge i32 %inc1, 1024 |
| 72 | br i1 %exitcnd2, label %exit, label %loop1 |
| 73 | |
| 74 | exit: |
| 75 | ret void |
| 76 | } |
| 77 | |
| 78 | |
| 79 | ; Check that non-strided load isn't marked. |
| 80 | ; CHECK-LABEL: @hwpf3( |
| 81 | ; CHECK: load i32, i32* %gep, !falkor.strided.access !0 |
| 82 | ; CHECK: load i32, i32* %gep2{{$}} |
| 83 | |
| 84 | ; NOHWPF-LABEL: @hwpf3( |
| 85 | ; NOHWPF: load i32, i32* %gep{{$}} |
| 86 | ; NOHWPF: load i32, i32* %gep2{{$}} |
| 87 | define void @hwpf3(i32* %p, i32* %p2) { |
| 88 | entry: |
| 89 | br label %loop |
| 90 | |
| 91 | loop: |
| 92 | %iv = phi i32 [ 0, %entry ], [ %inc, %loop ] |
| 93 | |
| 94 | %gep = getelementptr inbounds i32, i32* %p, i32 %iv |
| 95 | %load = load i32, i32* %gep |
| 96 | |
| 97 | %gep2 = getelementptr inbounds i32, i32* %p2, i32 %load |
| 98 | %load2 = load i32, i32* %gep2 |
| 99 | |
| 100 | %inc = add i32 %iv, 1 |
| 101 | %exitcnd = icmp uge i32 %inc, 1024 |
| 102 | br i1 %exitcnd, label %exit, label %loop |
| 103 | |
| 104 | exit: |
| 105 | ret void |
| 106 | } |