search for: srcas

Hi, I'd like to add support for addrspacecast in initializers of global variables, at least for the trivial case. The trivial case is if TargetLowering::isNoopAddrSpaceCast(SrcAS, DestAS) returns true. In this case the MCExpr for the addrspacecast is the MCExpr of its first operand. It seems hard to obtain an instance of TargetLowering in AsmPrinter::lowerConstant(). Other methods in this class obtain it by calling `MF->getSubtarget().getTargetLowering()`. Howeve...

...true; + } + } + } else if (Subtarget->isTargetDarwin()) { + // %gs:(192*sizeof(void*)) + AddressSpace = 256; + Offset = 192 * (Subtarget->getDataLayout()->getPointerSize()); + return true; + } + return false; +} + bool X86TargetLowering::isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const { assert(SrcAS != DestAS && "Expected different address spaces!"); diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h index e81a9d1..823479a 100644 --- a/lib/Target/X86/X86ISelLow...