Add const qualifiers to CodeGen's use of LLVM IR constructs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index b6a56b6..7618166 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -226,7 +226,7 @@
/// SetDebugLoc - Update MF's and SDB's DebugLocs if debug information is
/// attached with this instruction.
-static void SetDebugLoc(Instruction *I, SelectionDAGBuilder *SDB,
+static void SetDebugLoc(const Instruction *I, SelectionDAGBuilder *SDB,
FastISel *FastIS, MachineFunction *MF) {
DebugLoc DL = I->getDebugLoc();
if (DL.isUnknown()) return;
@@ -249,15 +249,16 @@
FastIS->setCurDebugLoc(DebugLoc());
}
-void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB,
- BasicBlock::iterator Begin,
- BasicBlock::iterator End,
+void SelectionDAGISel::SelectBasicBlock(const BasicBlock *LLVMBB,
+ BasicBlock::const_iterator Begin,
+ BasicBlock::const_iterator End,
bool &HadTailCall) {
SDB->setCurrentBasicBlock(BB);
// Lower all of the non-terminator instructions. If a call is emitted
// as a tail call, cease emitting nodes for this block.
- for (BasicBlock::iterator I = Begin; I != End && !SDB->HasTailCall; ++I) {
+ for (BasicBlock::const_iterator I = Begin;
+ I != End && !SDB->HasTailCall; ++I) {
SetDebugLoc(I, SDB, 0, MF);
// Visit the instruction. Terminators are handled below.
@@ -270,7 +271,7 @@
if (!SDB->HasTailCall) {
// Ensure that all instructions which are used outside of their defining
// blocks are available as virtual registers. Invoke is handled elsewhere.
- for (BasicBlock::iterator I = Begin; I != End; ++I)
+ for (BasicBlock::const_iterator I = Begin; I != End; ++I)
if (!isa<PHINode>(I) && !isa<InvokeInst>(I))
SDB->CopyToExportRegsIfNeeded(I);
@@ -744,7 +745,7 @@
}
}
-void SelectionDAGISel::SelectAllBasicBlocks(Function &Fn) {
+void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
// Initialize the Fast-ISel state, if needed.
FastISel *FastIS = 0;
if (EnableFastISel)
@@ -756,13 +757,13 @@
);
// Iterate over all basic blocks in the function.
- for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
- BasicBlock *LLVMBB = &*I;
+ for (Function::const_iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
+ const BasicBlock *LLVMBB = &*I;
BB = FuncInfo->MBBMap[LLVMBB];
- BasicBlock::iterator const Begin = LLVMBB->begin();
- BasicBlock::iterator const End = LLVMBB->end();
- BasicBlock::iterator BI = Begin;
+ BasicBlock::const_iterator const Begin = LLVMBB->begin();
+ BasicBlock::const_iterator const End = LLVMBB->end();
+ BasicBlock::const_iterator BI = Begin;
// Lower any arguments needed in this block if this is the entry block.
bool SuppressFastISel = false;
@@ -773,7 +774,7 @@
// fast-isel in the entry block.
if (FastIS) {
unsigned j = 1;
- for (Function::arg_iterator I = Fn.arg_begin(), E = Fn.arg_end();
+ for (Function::const_arg_iterator I = Fn.arg_begin(), E = Fn.arg_end();
I != E; ++I, ++j)
if (Fn.paramHasAttr(j, Attribute::ByVal)) {
if (EnableFastISelVerbose || EnableFastISelAbort)