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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-08-24 07:55:13 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-08-24 07:55:13 +0000 |
| commit | 00459e4a0618b1832626d0eb320c66bde94ea701 (patch) | |
| tree | e27f24b5ee44f03a024b9cc97a257af99d3e479e | |
| parent | 046a969360a08de4c3056937ccead111f6c5be9d (diff) | |
| download | bcm5719-llvm-00459e4a0618b1832626d0eb320c66bde94ea701.tar.gz bcm5719-llvm-00459e4a0618b1832626d0eb320c66bde94ea701.zip | |
IPRA: Exit early on functions without calls
llvm-svn: 311636
| -rw-r--r-- | llvm/lib/CodeGen/RegUsageInfoPropagate.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RegUsageInfoPropagate.cpp b/llvm/lib/CodeGen/RegUsageInfoPropagate.cpp index 5cc35bfeca6..a39c9457b3a 100644 --- a/llvm/lib/CodeGen/RegUsageInfoPropagate.cpp +++ b/llvm/lib/CodeGen/RegUsageInfoPropagate.cpp @@ -21,6 +21,7 @@ #include "llvm/CodeGen/MachineBasicBlock.h" #include "llvm/CodeGen/MachineFunctionPass.h" +#include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/Passes.h" @@ -95,6 +96,10 @@ bool RegUsageInfoPropagationPass::runOnMachineFunction(MachineFunction &MF) { << " ++++++++++++++++++++ \n"); DEBUG(dbgs() << "MachineFunction : " << MF.getName() << "\n"); + const MachineFrameInfo &MFI = MF.getFrameInfo(); + if (!MFI.hasCalls() && !MFI.hasTailCall()) + return false; + bool Changed = false; for (MachineBasicBlock &MBB : MF) { |
