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authorChris Lattner <sabre@nondot.org>2007-12-30 06:11:04 +0000
committerChris Lattner <sabre@nondot.org>2007-12-30 06:11:04 +0000
commite12d6abfdfc5141b2001f0c369a0e1525315b9c0 (patch)
tree88f0fe4768ae766ed3d430cda88722d3c731ff33 /lib/CodeGen/MachineInstr.cpp
parent271000d54504531b3e1056403a2bdf8453fae097 (diff)
make machine operands fatter: give each one an up-pointer to the
machineinstr that owns it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45449 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
-rw-r--r--lib/CodeGen/MachineInstr.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 5950c7c09a..fc55b95add 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -85,8 +85,10 @@ MachineInstr::MachineInstr(const MachineInstr &MI) {
Operands.reserve(MI.getNumOperands());
// Add operands
- for (unsigned i = 0; i != MI.getNumOperands(); ++i)
+ for (unsigned i = 0; i != MI.getNumOperands(); ++i) {
Operands.push_back(MI.getOperand(i));
+ Operands.back().ParentMI = this;
+ }
// Set parent, next, and prev to null
parent = 0;
@@ -97,6 +99,10 @@ MachineInstr::MachineInstr(const MachineInstr &MI) {
MachineInstr::~MachineInstr() {
LeakDetector::removeGarbageObject(this);
+#ifndef NDEBUG
+ for (unsigned i = 0, e = Operands.size(); i != e; ++i)
+ assert(Operands[i].ParentMI == this && "ParentMI mismatch!");
+#endif
}
/// getOpcode - Returns the opcode of this MachineInstr.