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fix PR8613 - Copy constructor of SwitchInst does not call SwitchInst::init

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119463 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-11-17 05:41:46 +00:00
parent b75c651e22
commit aa6e350c88
2 changed files with 10 additions and 9 deletions
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2
include/llvm/Instructions.h
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@ -2161,7 +2161,7 @@ class SwitchInst : public TerminatorInst {
// Operand[2n ] = Value to match
// Operand[2n+1] = BasicBlock to go to on match
SwitchInst(const SwitchInst &SI);
void init(Value *Value, BasicBlock *Default, unsigned NumCases);
void init(Value *Value, BasicBlock *Default, unsigned NumReserved);
void resizeOperands(unsigned No);
// allocate space for exactly zero operands
void *operator new(size_t s) {

17
lib/VMCore/Instructions.cpp
View File

@ -2939,9 +2939,9 @@ bool CmpInst::isFalseWhenEqual(unsigned short predicate) {
// SwitchInst Implementation
//===----------------------------------------------------------------------===//
void SwitchInst::init(Value *Value, BasicBlock *Default, unsigned NumCases) {
assert(Value && Default);
ReservedSpace = 2+NumCases*2;
void SwitchInst::init(Value *Value, BasicBlock *Default, unsigned NumReserved) {
assert(Value && Default && NumReserved);
ReservedSpace = NumReserved;
NumOperands = 2;
OperandList = allocHungoffUses(ReservedSpace);
@ -2957,7 +2957,7 @@ SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
Instruction *InsertBefore)
: TerminatorInst(Type::getVoidTy(Value->getContext()), Instruction::Switch,
0, 0, InsertBefore) {
init(Value, Default, NumCases);
init(Value, Default, 2+NumCases*2);
}
/// SwitchInst ctor - Create a new switch instruction, specifying a value to
@ -2968,14 +2968,15 @@ SwitchInst::SwitchInst(Value *Value, BasicBlock *Default, unsigned NumCases,
BasicBlock *InsertAtEnd)
: TerminatorInst(Type::getVoidTy(Value->getContext()), Instruction::Switch,
0, 0, InsertAtEnd) {
init(Value, Default, NumCases);
init(Value, Default, 2+NumCases*2);
}
SwitchInst::SwitchInst(const SwitchInst &SI)
: TerminatorInst(Type::getVoidTy(SI.getContext()), Instruction::Switch,
allocHungoffUses(SI.getNumOperands()), SI.getNumOperands()) {
: TerminatorInst(SI.getType(), Instruction::Switch, 0, 0) {
init(SI.getCondition(), SI.getDefaultDest(), SI.getNumOperands());
NumOperands = SI.getNumOperands();
Use *OL = OperandList, *InOL = SI.OperandList;
for (unsigned i = 0, E = SI.getNumOperands(); i != E; i+=2) {
for (unsigned i = 2, E = SI.getNumOperands(); i != E; i += 2) {
OL[i] = InOL[i];
OL[i+1] = InOL[i+1];
}