aboutsummaryrefslogtreecommitdiff
path: root/contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp')
-rw-r--r--contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp39
1 files changed, 0 insertions, 39 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp b/contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
index 718844bc36ff..66b2b0de8d52 100644
--- a/contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/contrib/llvm-project/llvm/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -471,45 +471,6 @@ void MipsAsmPrinter::emitBasicBlockEnd(const MachineBasicBlock &MBB) {
TS.emitDirectiveInsn();
}
-/// isBlockOnlyReachableByFallthough - Return true if the basic block has
-/// exactly one predecessor and the control transfer mechanism between
-/// the predecessor and this block is a fall-through.
-bool MipsAsmPrinter::isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
- MBB) const {
- // The predecessor has to be immediately before this block.
- const MachineBasicBlock *Pred = *MBB->pred_begin();
-
- // If the predecessor is a switch statement, assume a jump table
- // implementation, so it is not a fall through.
- if (const BasicBlock *bb = Pred->getBasicBlock())
- if (isa<SwitchInst>(bb->getTerminator()))
- return false;
-
- // If this is a landing pad, it isn't a fall through. If it has no preds,
- // then nothing falls through to it.
- if (MBB->isEHPad() || MBB->pred_empty())
- return false;
-
- // If there isn't exactly one predecessor, it can't be a fall through.
- if (MBB->pred_size() != 1)
- return false;
-
- // The predecessor has to be immediately before this block.
- if (!Pred->isLayoutSuccessor(MBB))
- return false;
-
- // If the block is completely empty, then it definitely does fall through.
- if (Pred->empty())
- return true;
-
- // Otherwise, check the last instruction.
- // Check if the last terminator is an unconditional branch.
- MachineBasicBlock::const_iterator I = Pred->end();
- while (I != Pred->begin() && !(--I)->isTerminator()) ;
-
- return !I->isBarrier();
-}
-
// Print out an operand for an inline asm expression.
bool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
const char *ExtraCode, raw_ostream &O) {