1 ; RUN: opt -S -passes=loop-unroll --debug-only=loop-unroll < %s 2>&1 | FileCheck %s -check-prefix=LOOP-UNROLL
2 ; RUN: opt -S -passes='require<opt-remark-emit>,loop(loop-unroll-full)' --debug-only=loop-unroll < %s 2>&1 | FileCheck %s -check-prefix=LOOP-UNROLL-FULL
6 %struct.HIP_vector_type = type { %union.anon }
7 %union.anon = type { <2 x float> }
10 ; LOOP-UNROLL-LABEL: Loop Unroll: F[pragma_unroll] Loop %for.body
11 ; LOOP-UNROLL-NEXT: Loop Size = 9
12 ; LOOP-UNROLL-NEXT: runtime unrolling with count: 8
13 ; LOOP-UNROLL-NEXT: Exiting block %for.body: TripCount=0, TripMultiple=1, BreakoutTrip=1
14 ; LOOP-UNROLL-NEXT: Trying runtime unrolling on Loop:
15 ; LOOP-UNROLL-NEXT: Loop at depth 1 containing: %for.body<header><latch><exiting>
16 ; LOOP-UNROLL-NEXT: Using epilog remainder.
17 ; LOOP-UNROLL-NEXT: UNROLLING loop %for.body by 8 with run-time trip count!
19 ; LOOP-UNROLL-FULL-LABEL: Loop Unroll: F[pragma_unroll] Loop %for.body
20 ; LOOP-UNROLL-FULL-NEXT: Loop Size = 9
21 ; LOOP-UNROLL-FULL-NEXT: runtime unrolling with count: 8
22 ; LOOP-UNROLL-FULL-NEXT: Not attempting partial/runtime unroll in FullLoopUnroll
23 define void @pragma_unroll(ptr %queue, i32 %num_elements) {
25 %cmp5 = icmp sgt i32 %num_elements, 0
26 br i1 %cmp5, label %for.body.preheader, label %for.cond.cleanup
28 for.body.preheader: ; preds = %entry
31 for.cond.cleanup.loopexit: ; preds = %for.body
32 br label %for.cond.cleanup
34 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
37 for.body: ; preds = %for.body.preheader, %for.body
38 %i.06 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
39 %add = add nuw nsw i32 %i.06, 1
40 %idxprom = zext i32 %add to i64
41 %arrayidx = getelementptr inbounds %struct.HIP_vector_type, ptr %queue, i64 %idxprom
42 %idxprom1 = zext i32 %i.06 to i64
43 %arrayidx2 = getelementptr inbounds %struct.HIP_vector_type, ptr %queue, i64 %idxprom1
44 %0 = load i64, ptr %arrayidx, align 8
45 store i64 %0, ptr %arrayidx2, align 8
46 %exitcond = icmp ne i32 %add, %num_elements
47 br i1 %exitcond, label %for.body, label %for.cond.cleanup.loopexit, !llvm.loop !1
50 ; LOOP-UNROLL-LABEL: Loop Unroll: F[pragma_unroll_count1] Loop %for.body
51 ; LOOP-UNROLL-NEXT: Loop Size = 9
52 ; LOOP-UNROLL-NEXT: Exiting block %for.body: TripCount=0, TripMultiple=1, BreakoutTrip=1
53 ; LOOP-UNROLL-NEXT: Trying runtime unrolling on Loop:
54 ; LOOP-UNROLL-NEXT: Loop at depth 1 containing: %for.body<header><latch><exiting>
55 ; LOOP-UNROLL-NEXT: Using epilog remainder.
56 ; LOOP-UNROLL-NEXT: UNROLLING loop %for.body by 5 with run-time trip count!
58 ; LOOP-UNROLL-FULL-LABEL: Loop Unroll: F[pragma_unroll_count1] Loop %for.body
59 ; LOOP-UNROLL-FULL-NEXT: Loop Size = 9
60 ; LOOP-UNROLL-FULL-NEXT: Not attempting partial/runtime unroll in FullLoopUnroll
61 define void @pragma_unroll_count1(ptr %queue, i32 %num_elements) {
63 %cmp5 = icmp sgt i32 %num_elements, 0
64 br i1 %cmp5, label %for.body.preheader, label %for.cond.cleanup
66 for.body.preheader: ; preds = %entry
69 for.cond.cleanup.loopexit: ; preds = %for.body
70 br label %for.cond.cleanup
72 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
75 for.body: ; preds = %for.body.preheader, %for.body
76 %i.06 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
77 %add = add nuw nsw i32 %i.06, 1
78 %idxprom = zext i32 %add to i64
79 %arrayidx = getelementptr inbounds %struct.HIP_vector_type, ptr %queue, i64 %idxprom
80 %idxprom1 = zext i32 %i.06 to i64
81 %arrayidx2 = getelementptr inbounds %struct.HIP_vector_type, ptr %queue, i64 %idxprom1
82 %0 = load i64, ptr %arrayidx, align 8
83 store i64 %0, ptr %arrayidx2, align 8
84 %exitcond = icmp ne i32 %add, %num_elements
85 br i1 %exitcond, label %for.body, label %for.cond.cleanup.loopexit, !llvm.loop !3
88 ; LOOP-UNROLL: llvm.loop.unroll.disable
89 ; LOOP-UNROLL-FULL: llvm.loop.unroll.enable
90 !0 = !{!"llvm.loop.unroll.enable"}
91 !1 = distinct !{!1, !0}
93 !2 = !{!"llvm.loop.unroll.count", i32 5}
94 !3 = distinct !{!3, !2}