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Bug 43202 - ARM FastIsel is renaming the memcpy to memcpy.<random-number> in getLibcallReg().
Needs ReviewPublic

Authored by umesh.kalappa0 on Sep 9 2019, 4:02 AM.

Reviewers

t.p.northover

Summary

When we use the FastIsel in the ARM ,the memcpy was renamed with like memcpy.<Number> by GlobalVariable()

But its not the semantics we required in the getLibcallReg().

Path

Size

	ARMFastISel.cpp /
	folk/	scratch1/	umesh/	llvm/	llvm/	lib/	Target/	ARM/


	ARMFastISel.cpp

7 lines

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	Type GVTy = Type::getInt32PtrTy(Context, /AS=/0);	Type GVTy = Type::getInt32PtrTy(Context, /AS=/0);
	EVT LCREVT = TLI.getValueType(DL, GVTy);	EVT LCREVT = TLI.getValueType(DL, GVTy);
	if (!LCREVT.isSimple()) return 0;	if (!LCREVT.isSimple()) return 0;
		GlobalValue *GV = cast <GlobalVariable>(M.getOrInsertGlobal(
	GlobalValue GV = new GlobalVariable(M, Type::getInt32Ty(Context), false,	Name.getSingleStringRef(),
	GlobalValue::ExternalLinkage, nullptr,	Type::getInt32Ty(*Context)));
	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());
	}	}
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