From d7d3872fb0327528c59c0bd441b173abc997a899 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 13 Dec 2002 13:04:04 +0000 Subject: [PATCH] Add sanity checks git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5020 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/InstSelectSimple.cpp | 2 ++ lib/Target/X86/X86ISelSimple.cpp | 2 ++ 2 files changed, 4 insertions(+) diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp index cad8e0d912f..d9feff1a930 100644 --- a/lib/Target/X86/InstSelectSimple.cpp +++ b/lib/Target/X86/InstSelectSimple.cpp @@ -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); diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp index cad8e0d912f..d9feff1a930 100644 --- a/lib/Target/X86/X86ISelSimple.cpp +++ b/lib/Target/X86/X86ISelSimple.cpp @@ -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);