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author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
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committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/Transforms/IndVarSimplify/use-range-metadata.ll | |
parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/Transforms/IndVarSimplify/use-range-metadata.ll')
-rw-r--r-- | test/Transforms/IndVarSimplify/use-range-metadata.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/use-range-metadata.ll b/test/Transforms/IndVarSimplify/use-range-metadata.ll new file mode 100644 index 0000000..7ac4f11 --- /dev/null +++ b/test/Transforms/IndVarSimplify/use-range-metadata.ll @@ -0,0 +1,37 @@ +;; RUN: opt -S < %s -indvars | FileCheck %s + +;; Check if IndVarSimplify understands !range metadata. + +declare void @abort() + +define i1 @iterate(i32* nocapture readonly %buffer) { +entry: + %length = load i32* %buffer, !range !0 + br label %loop.preheader + +loop.preheader: + br label %loop + +loop: + %idx = phi i32 [ %idx.inc, %loop.next ], [ 0, %loop.preheader ] + %oob.pred = icmp slt i32 %idx, %length + br i1 %oob.pred, label %loop.next, label %oob +; CHECK: br i1 true, label %loop.next, label %oob + +loop.next: + %idx.inc = add i32 %idx, 1 + %exit.pred = icmp slt i32 %idx.inc, %length + br i1 %exit.pred, label %loop, label %abort.loopexit + +abort.loopexit: + br label %abort + +abort: + ret i1 false + +oob: + tail call void @abort() + ret i1 false +} + +!0 = metadata !{i32 1, i32 100} |