diff options
Diffstat (limited to 'test/Transforms/LoopUnroll/AArch64/runtime-loop.ll')
| -rw-r--r-- | test/Transforms/LoopUnroll/AArch64/runtime-loop.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll b/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll new file mode 100644 index 0000000..d3dc081 --- /dev/null +++ b/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll @@ -0,0 +1,33 @@ +; RUN: opt < %s -S -loop-unroll -mtriple aarch64 -mcpu=cortex-a57 | FileCheck %s + +; Tests for unrolling loops with run-time trip counts + +; CHECK: %xtraiter = and i32 %n +; CHECK: %lcmp.mod = icmp ne i32 %xtraiter, 0 +; CHECK: br i1 %lcmp.mod, label %for.body.prol, label %for.body.preheader.split + +; CHECK: for.body.prol: +; CHECK: for.body: + +define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body + +for.body: ; preds = %for.body, %entry + %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] + %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ] + %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv + %0 = load i32, i32* %arrayidx, align 4 + %add = add nsw i32 %0, %sum.02 + %indvars.iv.next = add i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp eq i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body, %entry + %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ] + ret i32 %sum.0.lcssa +} + + |