ARM: mark additional instructions as MachineFrameSetup

Mark up additional instructions which are part of the function prologue as
MachineFrameSetup.  These instructions are part of the function prologue,
emitted by the PEI pass to setup the stack for use in the activating frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208153 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMFrameLowering.cpp b/lib/Target/ARM/ARMFrameLowering.cpp
index 8da7fb89401ab1b44123776329aff1baee8ffbdd..c0f8a8d902537a40ec702e319e3c2312f0e20535 100644 (file)
--- a/lib/Target/ARM/ARMFrameLowering.cpp
+++ b/lib/Target/ARM/ARMFrameLowering.cpp
@@ -299,10 +299,12 @@ void ARMFrameLowering::emitPrologue(MachineFunction &MF) const {
 
     if (NumWords < 65536)
       AddDefaultPred(BuildMI(MBB, MBBI, dl, TII.get(ARM::t2MOVi16), ARM::R4)
-                     .addImm(NumWords));
+                     .addImm(NumWords)
+                     .setMIFlags(MachineInstr::FrameSetup));
     else
       BuildMI(MBB, MBBI, dl, TII.get(ARM::t2MOVi32imm), ARM::R4)
-        .addImm(NumWords);
+        .addImm(NumWords)
+        .setMIFlags(MachineInstr::FrameSetup);
 
     switch (TM.getCodeModel()) {
     case CodeModel::Small:
@@ -312,17 +314,20 @@ void ARMFrameLowering::emitPrologue(MachineFunction &MF) const {
       BuildMI(MBB, MBBI, dl, TII.get(ARM::tBL))
         .addImm((unsigned)ARMCC::AL).addReg(0)
         .addExternalSymbol("__chkstk")
-        .addReg(ARM::R4, RegState::Implicit);
+        .addReg(ARM::R4, RegState::Implicit)
+        .setMIFlags(MachineInstr::FrameSetup);
       break;
     case CodeModel::Large:
     case CodeModel::JITDefault:
       BuildMI(MBB, MBBI, dl, TII.get(ARM::t2MOVi32imm), ARM::R12)
-        .addExternalSymbol("__chkstk");
+        .addExternalSymbol("__chkstk")
+        .setMIFlags(MachineInstr::FrameSetup);
 
       BuildMI(MBB, MBBI, dl, TII.get(ARM::tBLXr))
         .addImm((unsigned)ARMCC::AL).addReg(0)
         .addReg(ARM::R12, RegState::Kill)
-        .addReg(ARM::R4, RegState::Implicit);
+        .addReg(ARM::R4, RegState::Implicit)
+        .setMIFlags(MachineInstr::FrameSetup);
       break;
     }