Author: dpatel
Date: Wed Feb 13 13:48:48 2008
New Revision: 47082
URL: http://llvm.org/viewvc/llvm-project?rev=47082&view=rev
Log:
Keep track of exit value operand number when operands are swapped.
Added:
llvm/trunk/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll
Modified:
llvm/trunk/lib/Transforms/Scalar/LoopIndexSplit.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/LoopIndexSplit.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopIndexSplit.cpp?rev=47082&r1=47081&r2=47082&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopIndexSplit.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopIndexSplit.cpp Wed Feb 13 13:48:48 2008
@@ -1163,8 +1163,13 @@
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:
Added: llvm/trunk/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll?rev=47082&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll (added)
+++ llvm/trunk/test/Transforms/LoopIndexSplit/2008-02-13-ExitValueNum.ll Wed
Feb 13 13:48:48 2008
@@ -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
+}
+
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