Dan Gohman 6520e20e4f Teach DAGCombine to fold constant offsets into GlobalAddress nodes, ... and add a TargetLowering hook for it to use to determine when this is legal (i.e. not in PIC mode, etc.) This allows instruction selection to emit folded constant offsets in more cases, such as the included testcase, eliminating the need for explicit arithmetic instructions. This eliminates the need for the C++ code in X86ISelDAGToDAG.cpp that attempted to achieve the same effect, but wasn't as effective. Also, fix handling of offsets in GlobalAddressSDNodes in several places, including changing GlobalAddressSDNode's offset from int to int64_t. The Mips, Alpha, Sparc, and CellSPU targets appear to be unaware of GlobalAddress offsets currently, so set the hook to false on those targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57748 91177308-0d34-0410-b5e6-96231b3b80d8		2008-10-18 02:06:02 +00:00
..
Analysis	Trim #includes.	2008-10-16 20:18:31 +00:00
Archive	Initial support for the CMake build system.	2008-09-22 01:08:49 +00:00
AsmParser	regenerate	2008-10-15 12:05:02 +00:00
Bitcode	Rename APFloat::convertToAPInt to bitcastToAPInt to	2008-10-09 18:53:47 +00:00
CodeGen	Teach DAGCombine to fold constant offsets into GlobalAddress nodes,	2008-10-18 02:06:02 +00:00
Debugger	Initial support for the CMake build system.	2008-09-22 01:08:49 +00:00
ExecutionEngine	little optimization: reuse getPointerToGlobalIfAvailable(CGV) value in emitGlobals()	2008-10-14 10:04:52 +00:00
Linker	Also properly handle linking of strong alias and weak global	2008-10-15 20:10:50 +00:00
Support	Fix command-line option printing to print two spaces where needed,	2008-10-14 20:25:08 +00:00
System	Add <cstdio> include where needed by gcc-4.4.	2008-10-08 07:23:46 +00:00
Target	Teach DAGCombine to fold constant offsets into GlobalAddress nodes,	2008-10-18 02:06:02 +00:00
Transforms	Use 0 instead of false to return a null pointer.	2008-10-17 00:56:52 +00:00
VMCore	Keep track of *which* input constraint matches an output	2008-10-17 16:47:46 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00