| Hal Finkel | 99f823f | 2012-06-08 15:38:21 +0000 | [diff] [blame^] | 1 | target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" |
| 2 | target triple = "powerpc64-unknown-freebsd10.0" |
| 3 | ; RUN: llc < %s -march=ppc64 | FileCheck %s |
| 4 | |
| 5 | @a = common global i32 0, align 4 |
| 6 | |
| 7 | define void @test1(i32 %c) nounwind { |
| 8 | entry: |
| 9 | br label %for.body |
| 10 | |
| 11 | for.body: ; preds = %for.body, %entry |
| 12 | %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| 13 | %0 = load volatile i32* @a, align 4, !tbaa !0 |
| 14 | %add = add nsw i32 %0, %c |
| 15 | store volatile i32 %add, i32* @a, align 4, !tbaa !0 |
| 16 | %inc = add nsw i32 %i.01, 1 |
| 17 | %exitcond = icmp eq i32 %inc, 2048 |
| 18 | br i1 %exitcond, label %for.end, label %for.body |
| 19 | |
| 20 | for.end: ; preds = %for.body |
| 21 | ret void |
| 22 | ; CHECK: @test1 |
| 23 | ; CHECK: mtctr |
| 24 | ; CHECK-NOT: addi |
| 25 | ; CHECK-NOT: cmplwi |
| 26 | ; CHECK: bdnz |
| 27 | } |
| 28 | |
| 29 | define void @test2(i32 %c, i32 %d) nounwind { |
| 30 | entry: |
| 31 | %cmp1 = icmp sgt i32 %d, 0 |
| 32 | br i1 %cmp1, label %for.body, label %for.end |
| 33 | |
| 34 | for.body: ; preds = %entry, %for.body |
| 35 | %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| 36 | %0 = load volatile i32* @a, align 4, !tbaa !0 |
| 37 | %add = add nsw i32 %0, %c |
| 38 | store volatile i32 %add, i32* @a, align 4, !tbaa !0 |
| 39 | %inc = add nsw i32 %i.02, 1 |
| 40 | %exitcond = icmp eq i32 %inc, %d |
| 41 | br i1 %exitcond, label %for.end, label %for.body |
| 42 | |
| 43 | for.end: ; preds = %for.body, %entry |
| 44 | ret void |
| 45 | ; CHECK: @test2 |
| 46 | ; CHECK: mtctr |
| 47 | ; CHECK-NOT: addi |
| 48 | ; CHECK-NOT: cmplwi |
| 49 | ; CHECK: bdnz |
| 50 | } |
| 51 | |
| 52 | define void @test3(i32 %c, i32 %d) nounwind { |
| 53 | entry: |
| 54 | %cmp1 = icmp sgt i32 %d, 0 |
| 55 | br i1 %cmp1, label %for.body, label %for.end |
| 56 | |
| 57 | for.body: ; preds = %entry, %for.body |
| 58 | %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| 59 | %mul = mul nsw i32 %i.02, %c |
| 60 | %0 = load volatile i32* @a, align 4, !tbaa !0 |
| 61 | %add = add nsw i32 %0, %mul |
| 62 | store volatile i32 %add, i32* @a, align 4, !tbaa !0 |
| 63 | %inc = add nsw i32 %i.02, 1 |
| 64 | %exitcond = icmp eq i32 %inc, %d |
| 65 | br i1 %exitcond, label %for.end, label %for.body |
| 66 | |
| 67 | for.end: ; preds = %for.body, %entry |
| 68 | ret void |
| 69 | ; CHECK: @test3 |
| 70 | ; CHECK: mtctr |
| 71 | ; CHECK-NOT: addi |
| 72 | ; CHECK-NOT: cmplwi |
| 73 | ; CHECK: bdnz |
| 74 | } |
| 75 | |
| 76 | !0 = metadata !{metadata !"int", metadata !1} |
| 77 | !1 = metadata !{metadata !"omnipotent char", metadata !2} |
| 78 | !2 = metadata !{metadata !"Simple C/C++ TBAA"} |