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Store the global variable that's created so that it's reclaimed afterwards.

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This plugs a memory leak in ARM's FastISel by storing the GV in Module so that
it's reclaimed.
PR17978

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198160 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling committed 2013-12-29 08:00:04 +00:00
1 parent 827176c80c
commit c956500eb6
1 file changed
+3 -1
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lib/Target/ARM/ARMFastISel.cpp
+3 -1
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@@ -77,6 +77,7 @@ class ARMFastISel : public FastISel {
/// Subtarget - Keep a pointer to the ARMSubtarget around so that we can /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
/// make the right decision when generating code for different targets. /// make the right decision when generating code for different targets.
Module &M;
const ARMSubtarget *Subtarget; const ARMSubtarget *Subtarget;
const TargetMachine &TM; const TargetMachine &TM;
const TargetInstrInfo &TII; const TargetInstrInfo &TII;
@@ -91,6 +92,7 @@ class ARMFastISel : public FastISel {
explicit ARMFastISel(FunctionLoweringInfo &funcInfo, explicit ARMFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo) const TargetLibraryInfo *libInfo)
: FastISel(funcInfo, libInfo), : FastISel(funcInfo, libInfo),
M(const_cast<Module&>(*funcInfo.Fn->getParent())),
TM(funcInfo.MF->getTarget()), TM(funcInfo.MF->getTarget()),
TII(*TM.getInstrInfo()), TII(*TM.getInstrInfo()),
TLI(*TM.getTargetLowering()) { TLI(*TM.getTargetLowering()) {
@@ -2244,7 +2246,7 @@ unsigned ARMFastISel::getLibcallReg(const Twine &Name) {
EVT LCREVT = TLI.getValueType(GVTy); EVT LCREVT = TLI.getValueType(GVTy);
if (!LCREVT.isSimple()) return 0; if (!LCREVT.isSimple()) return 0;
GlobalValue *GV = new GlobalVariable(Type::getInt32Ty(*Context), false, GlobalValue *GV = new GlobalVariable(M, Type::getInt32Ty(*Context), false,
GlobalValue::ExternalLinkage, 0, Name); GlobalValue::ExternalLinkage, 0, Name);
assert(GV->getType() == GVTy && "We miscomputed the type for the global!"); assert(GV->getType() == GVTy && "We miscomputed the type for the global!");
return ARMMaterializeGV(GV, LCREVT.getSimpleVT()); return ARMMaterializeGV(GV, LCREVT.getSimpleVT());