diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/NVPTX/NVPTXAsmPrinter.cpp | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp index 6774ea863e..decf02a0be 100644 --- a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp +++ b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp @@ -1502,13 +1502,24 @@ void NVPTXAsmPrinter::printModuleLevelGV(const GlobalVariable *GVar, // Ptx allows variable initilization only for constant and global state // spaces. - if (((PTy->getAddressSpace() == llvm::ADDRESS_SPACE_GLOBAL) || - (PTy->getAddressSpace() == llvm::ADDRESS_SPACE_CONST)) && - GVar->hasInitializer()) { - const Constant *Initializer = GVar->getInitializer(); - if (!Initializer->isNullValue()) { - O << " = "; - printScalarConstant(Initializer, O); + if (GVar->hasInitializer()) { + if ((PTy->getAddressSpace() == llvm::ADDRESS_SPACE_GLOBAL) || + (PTy->getAddressSpace() == llvm::ADDRESS_SPACE_CONST)) { + const Constant *Initializer = GVar->getInitializer(); + // 'undef' is treated as there is no value spefied. + if (!Initializer->isNullValue() && !isa<UndefValue>(Initializer)) { + O << " = "; + printScalarConstant(Initializer, O); + } + } else { + // The frontend adds zero-initializer to variables that don't have an + // initial value, so skip warning for this case. + if (!GVar->getInitializer()->isNullValue()) { + std::string warnMsg = "initial value of '" + GVar->getName().str() + + "' is not allowed in addrspace(" + + llvm::utostr_32(PTy->getAddressSpace()) + ")"; + report_fatal_error(warnMsg.c_str()); + } } } } else { |