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Diffstat (limited to 'test/Transforms/LoopUnroll/unroll-maxcount.ll')
| -rw-r--r-- | test/Transforms/LoopUnroll/unroll-maxcount.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/Transforms/LoopUnroll/unroll-maxcount.ll b/test/Transforms/LoopUnroll/unroll-maxcount.ll new file mode 100644 index 000000000000..4cbd757aec22 --- /dev/null +++ b/test/Transforms/LoopUnroll/unroll-maxcount.ll @@ -0,0 +1,31 @@ +; RUN: opt < %s -S -loop-unroll -unroll-allow-partial -unroll-max-count=1 | FileCheck %s +; Checks that unroll MaxCount is honored. +; +; CHECK-LABEL: @foo( +; CHECK-LABEL: for.body: +; CHECK-NEXT: phi +; CHECK-NEXT: getelementptr +; CHECK-NEXT: load +; CHECK-NEXT: add +; CHECK-NEXT: store +; CHECK-NEXT: add +; CHECK-NEXT: icmp +; CHECK-NEXT: br +define void @foo(i32* nocapture %a) { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv + %0 = load i32, i32* %arrayidx, align 4 + %inc = add nsw i32 %0, 1 + store i32 %inc, i32* %arrayidx, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %exitcond = icmp eq i64 %indvars.iv.next, 1024 + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body + ret void +} + |