search for: sdn2

On Nov 9, 2011, at 2:12 PM, Chris Lattner wrote: > On Nov 9, 2011, at 1:08 PM, Jim Grosbach wrote: >>> On Nov 9, 2011, at 10:49 AM, Jim Grosbach wrote: >>>>> >>>>> It's not good, but people do it. Also constructing enums via & and | etc. It'd be nice to be able to get the name of whatever it is that the code generator actually produced :)

Hi Jochen, > My llvm version is 3.0 release. > I have a module generated by clang. When I optimize it, I first add an > inlining pass (llvm::createFunctionInliningPass), then these passes: > - own FunctionPass > - llvm::createPromoteMemoryToRegisterPass > - llvm::createInstructionCombiningPass > - llvm::createDeadInstEliminationPass > - llvm::createDeadStoreEliminationPass

Hi! My llvm version is 3.0 release. I have a module generated by clang. When I optimize it, I first add an inlining pass (llvm::createFunctionInliningPass), then these passes: - own FunctionPass - llvm::createPromoteMemoryToRegisterPass - llvm::createInstructionCombiningPass - llvm::createDeadInstEliminationPass - llvm::createDeadStoreEliminationPass - new llvm::DominatorTree() - new

...Load from q[0] 0x3df5470: ch = STb_GP_V4 0x3df5170, 0x3df4e70, 0x3d9c130<Mem:ST1[@s]> [ID=4] // This is a store to s Underlying Values: @q = common global i8* null, align 4 @s = common global i8 0, align 1 The way inquiry is made is similar to DAGCombiner::isAlias() SDNode *SDN1; SDNode *SDN2; MachineMemOperand *MMOa; MachineMemOperand *MMOb; ... const MachineSDNode *MNb = dyn_cast<MachineSDNode>(SDN2); const MachineSDNode *MNa = dyn_cast<MachineSDNode>(SDN1); ... MMOa = !MNa->memoperands_empty() ? (*MNa->memoperands_begin()) : NULL;...