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Add sanity checks

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-12-13 13:04:04 +00:00
parent 0868667f78
commit d7d3872fb0
2 changed files with 4 additions and 0 deletions
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2
lib/Target/X86/InstSelectSimple.cpp
View File

@ -35,6 +35,7 @@ inline static MachineInstrBuilder BMI(MachineBasicBlock *MBB,
MachineOpCode Opcode,
unsigned NumOperands,
unsigned DestReg) {
assert(I >= MBB->begin() && I <= MBB->end() && "Bad iterator!");
MachineInstr *MI = new MachineInstr(Opcode, NumOperands+1, true, true);
I = ++MBB->insert(I, MI);
return MachineInstrBuilder(MI).addReg(DestReg, MOTy::Def);
@ -46,6 +47,7 @@ inline static MachineInstrBuilder BMI(MachineBasicBlock *MBB,
MachineBasicBlock::iterator &I,
MachineOpCode Opcode,
unsigned NumOperands) {
assert(I > MBB->begin() && I <= MBB->end() && "Bad iterator!");
MachineInstr *MI = new MachineInstr(Opcode, NumOperands, true, true);
I = ++MBB->insert(I, MI);
return MachineInstrBuilder(MI);

2
lib/Target/X86/X86ISelSimple.cpp
View File

@ -35,6 +35,7 @@ inline static MachineInstrBuilder BMI(MachineBasicBlock *MBB,
MachineOpCode Opcode,
unsigned NumOperands,
unsigned DestReg) {
assert(I >= MBB->begin() && I <= MBB->end() && "Bad iterator!");
MachineInstr *MI = new MachineInstr(Opcode, NumOperands+1, true, true);
I = ++MBB->insert(I, MI);
return MachineInstrBuilder(MI).addReg(DestReg, MOTy::Def);
@ -46,6 +47,7 @@ inline static MachineInstrBuilder BMI(MachineBasicBlock *MBB,
MachineBasicBlock::iterator &I,
MachineOpCode Opcode,
unsigned NumOperands) {
assert(I > MBB->begin() && I <= MBB->end() && "Bad iterator!");
MachineInstr *MI = new MachineInstr(Opcode, NumOperands, true, true);
I = ++MBB->insert(I, MI);
return MachineInstrBuilder(MI);