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llvm-svn: 85558
This commit is contained in:
Dan Gohman 2009-10-30 01:34:35 +00:00
parent 2767aa065e
commit a0fc491716
1 changed files with 8 additions and 0 deletions
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8
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -1642,9 +1642,15 @@ MCSymbol *AsmPrinter::GetMBBSymbol(unsigned MBBID) const {
/// MachineBasicBlock, an alignment (if present) and a comment describing
/// it if appropriate.
void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
// Emit an alignment directive for this block, if needed.
if (unsigned Align = MBB->getAlignment())
EmitAlignment(Log2_32(Align));
// If the block has its address taken, emit a special label to satisfy
// references to the block. This is done so that we don't need to
// remember the number of this label, and so that we can make
// forward references to labels without knowing what their numbers
// will be.
if (MBB->hasAddressTaken()) {
GetBlockAddressSymbol(MBB->getBasicBlock()->getParent(),
MBB->getBasicBlock())->print(O, MAI);
@ -1656,6 +1662,7 @@ void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
O << '\n';
}
// Print the main label for the block.
if (MBB->pred_empty() || MBB->isOnlyReachableByFallthrough()) {
if (VerboseAsm)
O << MAI->getCommentString() << " BB#" << MBB->getNumber() << ':';
@ -1666,6 +1673,7 @@ void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
O << '\n';
}
// Print some comments to accompany the label.
if (VerboseAsm) {
if (const BasicBlock *BB = MBB->getBasicBlock())
if (BB->hasName()) {