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| author | Devang Patel <dpatel@apple.com> | 2008-02-13 19:48:48 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2008-02-13 19:48:48 +0000 |
| commit | 8721abe35d62f8687d9bff264cf739d3945af374 (patch) | |
| tree | e7f6211eaf7cd0d44585b0874b0fbb7a50a588df | |
| parent | 0e757e1536589f0cb4bda572c5903b65cdf18d23 (diff) | |
| download | external_llvm-8721abe35d62f8687d9bff264cf739d3945af374.tar.gz external_llvm-8721abe35d62f8687d9bff264cf739d3945af374.tar.bz2 external_llvm-8721abe35d62f8687d9bff264cf739d3945af374.zip | |
Keep track of exit value operand number when operands are swapped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47082 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/LoopIndexSplit.cpp | 7 | ||||
| -rw-r--r-- | test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll | 67 |
2 files changed, 73 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/LoopIndexSplit.cpp b/lib/Transforms/Scalar/LoopIndexSplit.cpp index 683a038824..2d30eb6ff5 100644 --- a/lib/Transforms/Scalar/LoopIndexSplit.cpp +++ b/lib/Transforms/Scalar/LoopIndexSplit.cpp @@ -1163,8 +1163,13 @@ void LoopIndexSplit::calculateLoopBounds(SplitInfo &SD) { if (ExitCondition->getPredicate() == ICmpInst::ICMP_SGT || ExitCondition->getPredicate() == ICmpInst::ICMP_UGT || ExitCondition->getPredicate() == ICmpInst::ICMP_SGE - || ExitCondition->getPredicate() == ICmpInst::ICMP_UGE) + || ExitCondition->getPredicate() == ICmpInst::ICMP_UGE) { ExitCondition->swapOperands(); + if (ExitValueNum) + ExitValueNum = 0; + else + ExitValueNum = 1; + } switch (ExitCondition->getPredicate()) { case ICmpInst::ICMP_SGT: diff --git a/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll b/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll new file mode 100644 index 0000000000..9fa83e4f57 --- /dev/null +++ b/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll @@ -0,0 +1,67 @@ +; RUN: llvm-as < %s | opt -disable-output -loop-index-split +; PR 2011 + %struct.CLAUSE_HELP = type { i32, i32, i32, i32, i32*, i32, %struct.LIST_NODE*, %struct.LIST_NODE*, i32, i32, %struct.LITERAL_HELP**, i32, i32, i32, i32 } + %struct.LIST_NODE = type { %struct.LIST_NODE*, i8* } + %struct.LITERAL_HELP = type { i32, i32, i32, %struct.CLAUSE_HELP*, %struct.term* } + %struct.anon = type { %struct.LIST_NODE* } + %struct.st = type { %struct.subst*, %struct.LIST_NODE*, %struct.LIST_NODE*, i16, i16 } + %struct.subst = type { %struct.subst*, i32, %struct.term* } + %struct.term = type { i32, %struct.anon, %struct.LIST_NODE*, i32, i32 } + +define fastcc %struct.LIST_NODE* @inf_HyperResolvents(%struct.CLAUSE_HELP* %Clause, %struct.subst* %Subst, %struct.LIST_NODE* %Restlits, i32 %GlobalMaxVar, %struct.LIST_NODE* %FoundMap, i32 %StrictlyMaximal, { %struct.st*, [3001 x %struct.term*], [4000 x %struct.term*], i32 }* %Index, i32* %Flags, i32* %Precedence) nounwind { +entry: + br i1 false, label %bb960, label %bb885 + +bb885: ; preds = %entry + ret %struct.LIST_NODE* null + +bb960: ; preds = %entry + br i1 false, label %bb1097, label %bb1005.preheader + +bb1005.preheader: ; preds = %bb960 + ret %struct.LIST_NODE* null + +bb1097: ; preds = %bb960 + br i1 false, label %bb1269.preheader, label %bb1141.preheader + +bb1141.preheader: ; preds = %bb1097 + ret %struct.LIST_NODE* null + +bb1269.preheader: ; preds = %bb1097 + br i1 false, label %bb1318, label %bb1281 + +bb1281: ; preds = %bb1269.preheader + ret %struct.LIST_NODE* null + +bb1318: ; preds = %bb1269.preheader + br i1 false, label %bb1459, label %bb.nph52 + +bb.nph52: ; preds = %bb1318 + ret %struct.LIST_NODE* null + +bb1459: ; preds = %bb1318 + br i1 false, label %bb1553, label %bb.nph62 + +bb.nph62: ; preds = %bb1459 + ret %struct.LIST_NODE* null + +bb1553: ; preds = %bb1669, %bb1459 + %j295.0.reg2mem.0 = phi i32 [ %storemerge110, %bb1669 ], [ 0, %bb1459 ] ; <i32> [#uses=2] + %tmp1629 = icmp sgt i32 %j295.0.reg2mem.0, 0 ; <i1> [#uses=1] + br i1 %tmp1629, label %bb1649, label %bb1632 + +bb1632: ; preds = %bb1553 + br label %bb1669 + +bb1649: ; preds = %bb1553 + br label %bb1669 + +bb1669: ; preds = %bb1649, %bb1632 + %storemerge110 = add i32 %j295.0.reg2mem.0, 1 ; <i32> [#uses=2] + %tmp1672 = icmp sgt i32 %storemerge110, 0 ; <i1> [#uses=1] + br i1 %tmp1672, label %bb1678, label %bb1553 + +bb1678: ; preds = %bb1669 + ret %struct.LIST_NODE* null +} + |