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| author | Logan Chien <tzuhsiang.chien@gmail.com> | 2013-08-22 12:08:04 +0000 |
|---|---|---|
| committer | Logan Chien <tzuhsiang.chien@gmail.com> | 2013-08-22 12:08:04 +0000 |
| commit | 7ddda4704cdb24163591857e8d08614463cec335 (patch) | |
| tree | 4f900dd865b4e1b2dd07d0639427890a5bf1fd65 /lib/Target/ARM/ARMFastISel.cpp | |
| parent | a5bd3937ab34d88fe87f25f9c7d1f059445234b8 (diff) | |
| download | external_llvm-7ddda4704cdb24163591857e8d08614463cec335.zip external_llvm-7ddda4704cdb24163591857e8d08614463cec335.tar.gz external_llvm-7ddda4704cdb24163591857e8d08614463cec335.tar.bz2 | |
Fix ARM FastISel PIC function call.
The function call to external function should come with PLT relocation
type if the PIC relocation model is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189002 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMFastISel.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMFastISel.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp index f4aaf09..628b514 100644 --- a/lib/Target/ARM/ARMFastISel.cpp +++ b/lib/Target/ARM/ARMFastISel.cpp @@ -2460,15 +2460,22 @@ bool ARMFastISel::SelectCall(const Instruction *I, MachineInstrBuilder MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(CallOpc)); + unsigned char OpFlags = 0; + + // Add MO_PLT for global address or external symbol in the PIC relocation + // model. + if (Subtarget->isTargetELF() && TM.getRelocationModel() == Reloc::PIC_) + OpFlags = ARMII::MO_PLT; + // ARM calls don't take a predicate, but tBL / tBLX do. if(isThumb2) AddDefaultPred(MIB); if (UseReg) MIB.addReg(CalleeReg); else if (!IntrMemName) - MIB.addGlobalAddress(GV, 0, 0); + MIB.addGlobalAddress(GV, 0, OpFlags); else - MIB.addExternalSymbol(IntrMemName, 0); + MIB.addExternalSymbol(IntrMemName, OpFlags); // Add implicit physical register uses to the call. for (unsigned i = 0, e = RegArgs.size(); i != e; ++i) |