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| author | Pirama Arumuga Nainar <pirama@google.com> | 2015-04-08 08:55:49 -0700 |
|---|---|---|
| committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-04-09 15:04:38 -0700 |
| commit | 4c5e43da7792f75567b693105cc53e3f1992ad98 (patch) | |
| tree | 1b2c9792582e12f5af0b1512e3094425f0dc0df9 /test/Analysis/ScalarEvolution/infer-via-ranges.ll | |
| parent | c75239e6119d0f9a74c57099d91cbc9bde56bf33 (diff) | |
| download | external_llvm-4c5e43da7792f75567b693105cc53e3f1992ad98.zip external_llvm-4c5e43da7792f75567b693105cc53e3f1992ad98.tar.gz external_llvm-4c5e43da7792f75567b693105cc53e3f1992ad98.tar.bz2 | |
Update aosp/master llvm for rebase to r233350
Change-Id: I07d935f8793ee8ec6b7da003f6483046594bca49
Diffstat (limited to 'test/Analysis/ScalarEvolution/infer-via-ranges.ll')
| -rw-r--r-- | test/Analysis/ScalarEvolution/infer-via-ranges.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/infer-via-ranges.ll b/test/Analysis/ScalarEvolution/infer-via-ranges.ll new file mode 100644 index 0000000..3627c3a --- /dev/null +++ b/test/Analysis/ScalarEvolution/infer-via-ranges.ll @@ -0,0 +1,30 @@ +; RUN: opt -indvars -S < %s | FileCheck %s + +define void @infer_via_ranges(i32 *%arr, i32 %n) { +; CHECK-LABEL: @infer_via_ranges + entry: + %first.itr.check = icmp sgt i32 %n, 0 + %start = sub i32 %n, 1 + br i1 %first.itr.check, label %loop, label %exit + + loop: +; CHECK-LABEL: loop: + %idx = phi i32 [ %start, %entry ] , [ %idx.dec, %in.bounds ] + %idx.dec = sub i32 %idx, 1 + %abc = icmp sge i32 %idx, 0 +; CHECK: br i1 true, label %in.bounds, label %out.of.bounds + br i1 %abc, label %in.bounds, label %out.of.bounds + + in.bounds: +; CHECK-LABEL: in.bounds: + %addr = getelementptr i32, i32* %arr, i32 %idx + store i32 0, i32* %addr + %next = icmp sgt i32 %idx.dec, -1 + br i1 %next, label %loop, label %exit + + out.of.bounds: + ret void + + exit: + ret void +} |