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| author | Andrew Trick <atrick@apple.com> | 2011-06-29 23:03:57 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-06-29 23:03:57 +0000 |
| commit | cc359d9fa28a871b18d93da76fd9cf516499e39f (patch) | |
| tree | 37c38773dc06da81d6960e370ff549992af2f061 /test/Transforms/IndVarSimplify | |
| parent | 3290239daff266dce1051dfd103106956e05a7b1 (diff) | |
| download | llvm-cc359d9fa28a871b18d93da76fd9cf516499e39f.tar.gz llvm-cc359d9fa28a871b18d93da76fd9cf516499e39f.tar.bz2 llvm-cc359d9fa28a871b18d93da76fd9cf516499e39f.tar.xz | |
indvars -disable-iv-rewrite: insert new trunc instructions carefully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134112 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/IndVarSimplify')
| -rw-r--r-- | test/Transforms/IndVarSimplify/no-iv-rewrite.ll | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/test/Transforms/IndVarSimplify/no-iv-rewrite.ll b/test/Transforms/IndVarSimplify/no-iv-rewrite.ll index 462ff58256..3395be2836 100644 --- a/test/Transforms/IndVarSimplify/no-iv-rewrite.ll +++ b/test/Transforms/IndVarSimplify/no-iv-rewrite.ll @@ -153,8 +153,37 @@ loop: br i1 %cond, label %loop, label %exit exit: - br label %return + ret void +} -return: +define void @maxvisitor(i32 %limit, i32* %base) nounwind { +entry: br label %loop + +; CHECK: loop: +; CHECK: phi i64 +; CHECK: trunc +; CHECK: exit +loop: + %idx = phi i32 [ 0, %entry ], [ %idx.next, %loop.inc ] + %max = phi i32 [ 0, %entry ], [ %max.next, %loop.inc ] + %idxprom = sext i32 %idx to i64 + %adr = getelementptr inbounds i32* %base, i64 %idxprom + %val = load i32* %adr + %cmp19 = icmp sgt i32 %val, %max + br i1 %cmp19, label %if.then, label %if.else + +if.then: + br label %loop.inc + +if.else: + br label %loop.inc + +loop.inc: + %max.next = phi i32 [ %idx, %if.then ], [ %max, %if.else ] + %idx.next = add nsw i32 %idx, 1 + %cmp = icmp slt i32 %idx.next, %limit + br i1 %cmp, label %loop, label %exit + +exit: ret void }
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