diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/MachineBlockPlacement.cpp | 10 | ||||
| -rw-r--r-- | llvm/lib/CodeGen/MachineFunction.cpp | 8 |
2 files changed, 18 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp index fcddf346cf6..f5e30564501 100644 --- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp +++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp @@ -62,6 +62,11 @@ static cl::opt<unsigned> AlignAllBlock("align-all-blocks", "blocks in the function."), cl::init(0), cl::Hidden); +static cl::opt<unsigned> + AlignAllLoops("align-all-loops", + cl::desc("Force the alignment of all loops in the function."), + cl::init(0), cl::Hidden); + // FIXME: Find a good default for this flag and remove the flag. static cl::opt<unsigned> ExitBlockBias( "block-placement-exit-block-bias", @@ -1329,6 +1334,11 @@ void MachineBlockPlacement::buildCFGChains(MachineFunction &F) { if (!L) continue; + if (AlignAllLoops) { + ChainBB->setAlignment(AlignAllLoops); + continue; + } + unsigned Align = TLI->getPrefLoopAlignment(L); if (!Align) continue; // Don't care about loop alignment. diff --git a/llvm/lib/CodeGen/MachineFunction.cpp b/llvm/lib/CodeGen/MachineFunction.cpp index 80d30a5b131..ca4bb1c6ad4 100644 --- a/llvm/lib/CodeGen/MachineFunction.cpp +++ b/llvm/lib/CodeGen/MachineFunction.cpp @@ -47,6 +47,11 @@ using namespace llvm; #define DEBUG_TYPE "codegen" +static cl::opt<unsigned> + AlignAllFunctions("align-all-functions", + cl::desc("Force the alignment of all functions."), + cl::init(0), cl::Hidden); + void MachineFunctionInitializer::anchor() {} //===----------------------------------------------------------------------===// @@ -87,6 +92,9 @@ MachineFunction::MachineFunction(const Function *F, const TargetMachine &TM, Alignment = std::max(Alignment, STI->getTargetLowering()->getPrefFunctionAlignment()); + if (AlignAllFunctions) + Alignment = AlignAllFunctions; + FunctionNumber = FunctionNum; JumpTableInfo = nullptr; |
