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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 | ecdd6e4c67bdfffd6ef7ff07e2ac3e36785b7118 (patch) | |
| tree | a228068a81fdf53e690f291db8a8a74c551a3e8f /llvm/test/Transforms | |
| parent | e98e9a154036d6f25c1e0c9a62962932f601c05c (diff) | |
| download | bcm5719-llvm-ecdd6e4c67bdfffd6ef7ff07e2ac3e36785b7118.tar.gz bcm5719-llvm-ecdd6e4c67bdfffd6ef7ff07e2ac3e36785b7118.zip | |
indvars -disable-iv-rewrite: insert new trunc instructions carefully.
llvm-svn: 134112
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/IndVarSimplify/no-iv-rewrite.ll | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/no-iv-rewrite.ll b/llvm/test/Transforms/IndVarSimplify/no-iv-rewrite.ll index 462ff582565..3395be28361 100644 --- a/llvm/test/Transforms/IndVarSimplify/no-iv-rewrite.ll +++ b/llvm/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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