diff options
| author | Devang Patel <dpatel@apple.com> | 2010-05-03 18:06:58 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-05-03 18:06:58 +0000 |
| commit | 86b6f80a4cbae79688723dd24824ff0609349da1 (patch) | |
| tree | abc52e6eecb708cac2c013a7b58e853a004fe212 /test/Transforms | |
| parent | 34c3e36e6317b0ed448ccd2c567d5b088275fd7d (diff) | |
| download | external_llvm-86b6f80a4cbae79688723dd24824ff0609349da1.zip external_llvm-86b6f80a4cbae79688723dd24824ff0609349da1.tar.gz external_llvm-86b6f80a4cbae79688723dd24824ff0609349da1.tar.bz2 | |
Check for side effects before splitting loop.
Patch by Jakub Staszak!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102928 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/LoopIndexSplit/PR4174-2.ll | 38 | ||||
| -rw-r--r-- | test/Transforms/LoopIndexSplit/PR4174.ll | 23 |
2 files changed, 61 insertions, 0 deletions
diff --git a/test/Transforms/LoopIndexSplit/PR4174-2.ll b/test/Transforms/LoopIndexSplit/PR4174-2.ll new file mode 100644 index 0000000..cc17bc0 --- /dev/null +++ b/test/Transforms/LoopIndexSplit/PR4174-2.ll @@ -0,0 +1,38 @@ +; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep clone + +declare void @f() + +define fastcc i32 @main() nounwind { +entry: + br label %bb1552 + +bb1552: + %j295.0.reg2mem.0 = phi i32 [ %storemerge110, %bb1669 ], [ 0, %entry ] + br label %bb1553 + +bb1553: + call void @f() + %tmp1628 = icmp sgt i32 %j295.0.reg2mem.0, -3 + br i1 %tmp1628, label %bb1588, label %bb1616 + +bb1588: + br label %bb1616 + +bb1616: + %tmp1629 = icmp sgt i32 %j295.0.reg2mem.0, -3 + br i1 %tmp1629, label %bb1649, label %bb1632 + +bb1632: + br label %bb1669 + +bb1649: + br label %bb1669 + +bb1669: + %storemerge110 = add i32 %j295.0.reg2mem.0, 1 + %tmp1672 = icmp sgt i32 %storemerge110, 3 + br i1 %tmp1672, label %bb1678, label %bb1552 + +bb1678: + ret i32 0 +} diff --git a/test/Transforms/LoopIndexSplit/PR4174.ll b/test/Transforms/LoopIndexSplit/PR4174.ll new file mode 100644 index 0000000..e8f5a73 --- /dev/null +++ b/test/Transforms/LoopIndexSplit/PR4174.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep clone + +declare void @f() + +define i32 @main() { +entry: + br label %head +head: + %i = phi i32 [0, %entry], [%i1, %tail] + call void @f() + %splitcond = icmp slt i32 %i, 2 + br i1 %splitcond, label %yes, label %no +yes: + br label %tail +no: + br label %tail +tail: + %i1 = add i32 %i, 1 + %exitcond = icmp slt i32 %i1, 4 + br i1 %exitcond, label %head, label %exit +exit: + ret i32 0 +} |