diff options
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll b/llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll index 7f266a7..314cf38 100644 --- a/llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll +++ b/llvm/test/Transforms/LoopUnroll/full-unroll-avoid-partial.ll @@ -85,6 +85,35 @@ for.body: ; preds = %for.body.preheader, br i1 %exitcond, label %for.body, label %for.cond.cleanup.loopexit, !llvm.loop !3 } +; LOOP-UNROLL-LABEL: Loop Unroll: F[pragma_unroll_count2] Loop %for.body +; LOOP-UNROLL-NEXT: Loop Size = 4 +; LOOP-UNROLL-NEXT: Exiting block %for.body: TripCount=0, TripMultiple=1, BreakoutTrip=1 +; LOOP-UNROLL-NEXT: Trying runtime unrolling on Loop: +; LOOP-UNROLL-NEXT: Loop at depth 1 containing: %for.body<header><exiting>,%for.cond<latch> +; LOOP-UNROLL-NEXT: Using epilog remainder. +; LOOP-UNROLL-NEXT: Loop latch not terminated by a conditional branch. +; LOOP-UNROLL-NEXT: UNROLLING loop %for.body by 5! + +; LOOP-UNROLL-FULL-LABEL: Loop Unroll: F[pragma_unroll_count2] Loop %for.body +; LOOP-UNROLL-FULL-NEXT: Loop Size = 4 +; LOOP-UNROLL-FULL-NEXT: Not attempting partial/runtime unroll in FullLoopUnroll +define void @pragma_unroll_count2(i64 %n) { +entry: + br label %for.body + +for.body: ; preds = %for.cond, %entry + %i = phi i64 [ 0, %entry ], [ %inc, %for.cond ] + %cmp = icmp ult i64 %i, %n + br i1 %cmp, label %for.cond, label %for.cond.cleanup + +for.cond: ; preds = %for.body + %inc = add i64 %i, 8 + br label %for.body, !llvm.loop !3 + +for.cond.cleanup: ; preds = %for.body + ret void +} + ; LOOP-UNROLL: llvm.loop.unroll.disable ; LOOP-UNROLL-FULL: llvm.loop.unroll.enable !0 = !{!"llvm.loop.unroll.enable"} |
