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
..
Alpha	get CodeGen/Alpha/mul128.ll to work.	2008-10-09 04:50:56 +00:00
ARM	Implement function notes as function attributes.	2008-09-26 23:51:19 +00:00
CBackend	In the CBackend, use casts to force integer add, subtract, and	2008-07-18 18:43:12 +00:00
CellSPU	remove an xfailed test.	2008-10-17 17:26:48 +00:00
CPP	Put CPPBackend tests into their own directory and run them only if they're	2008-07-10 22:35:32 +00:00
Generic	remove this test: it is xfailed anyway, and is failing for a reason	2008-10-17 17:26:19 +00:00
IA64
Mips	FIX PR2794. Make sure SIGN_EXTEND_INREG nodes introduced by LegalizeSetCCOperands are leglized. Patch by Richard Pennington.	2008-10-13 18:46:18 +00:00
PowerPC	Revert r57699. It's causing regressions in	2008-10-18 01:03:45 +00:00
SPARC	Add testcase for 'r' inline asm operand	2008-10-10 20:28:59 +00:00
X86	Teach DAGCombine to fold constant offsets into GlobalAddress nodes,	2008-10-18 02:06:02 +00:00