Benjamin Kramer 9c64030445 Emit a more efficient magic number multiplication for exact sdivs. ... We have to do this in DAGBuilder instead of DAGCombiner, because the exact bit is lost after building. struct foo { char x[24]; }; long bar(struct foo *a, struct foo *b) { return a-b; } is now compiled into movl 4(%esp), %eax subl 8(%esp), %eax sarl $3, %eax imull $-1431655765, %eax, %eax instead of movl 4(%esp), %eax subl 8(%esp), %eax movl $715827883, %ecx imull %ecx movl %edx, %eax shrl $31, %eax sarl $2, %edx addl %eax, %edx movl %edx, %eax git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134695 91177308-0d34-0410-b5e6-96231b3b80d8		2011-07-08 10:31:30 +00:00
..
CMakeLists.txt	Removed a bunch of unnecessary target_link_libraries.	2010-09-28 22:39:14 +00:00
DAGCombiner.cpp	Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. The	2011-07-07 04:31:51 +00:00
FastISel.cpp	Revert r133953 for now.	2011-06-29 23:50:13 +00:00
FunctionLoweringInfo.cpp	Add a parameter to CCState so that it can access the MachineFunction.	2011-06-08 23:55:35 +00:00
InstrEmitter.cpp	- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and	2011-06-28 19:10:37 +00:00
InstrEmitter.h	- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and	2011-06-28 19:10:37 +00:00
LegalizeDAG.cpp	Add a testcase for checking the integer-promotion of many different vector	2011-06-14 08:11:52 +00:00
LegalizeFloatTypes.cpp	Allow targets to specify a the type of the RHS of a shift parameterized on the type of the LHS.	2011-02-25 21:41:48 +00:00
LegalizeIntegerTypes.cpp	Fix PromoteIntRes_TRUNCATE: Add support for cases where the	2011-06-20 07:15:58 +00:00
LegalizeTypes.cpp	Refactor LegalizeTypes: Erase LegalizeAction and make the type legalizer use	2011-06-01 19:47:10 +00:00
LegalizeTypes.h	Lower multiply with overflow checking to __mulo<mode>	2011-06-17 20:41:29 +00:00
LegalizeTypesGeneric.cpp	Refactor LegalizeTypes: Erase LegalizeAction and make the type legalizer use	2011-06-01 19:47:10 +00:00
LegalizeVectorOps.cpp	Add support for legalizing UINT_TO_FP of vectors on platforms which do	2011-03-19 13:09:10 +00:00
LegalizeVectorTypes.cpp	Fix a bug in FindMemType. When widening vector loads, use a wider memory type	2011-06-13 18:13:24 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
ScheduleDAGFast.cpp	- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and	2011-06-28 19:10:37 +00:00
ScheduleDAGList.cpp	Various bits of framework needed for precise machine-level selection	2010-12-24 05:03:26 +00:00
ScheduleDAGRRList.cpp	- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and	2011-06-28 19:10:37 +00:00
ScheduleDAGSDNodes.cpp	Rename TargetSubtarget to TargetSubtargetInfo for consistency.	2011-07-01 21:01:15 +00:00
ScheduleDAGSDNodes.h	The index stored in the RegDefIter is one after the current index. When getting the index, decrement it so that it points to the current element. Fixes an off-by-one bug encountered when trying to make use of MVT::untyped.	2011-06-27 18:34:12 +00:00
SDNodeDbgValue.h	Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.	2011-02-18 22:43:42 +00:00
SDNodeOrdering.h	Allow 0 as an order number. Don't assign an order to formal arguments.	2009-12-22 21:35:02 +00:00
SelectionDAG.cpp	Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. The	2011-07-07 04:31:51 +00:00
SelectionDAGBuilder.cpp	Emit a more efficient magic number multiplication for exact sdivs.	2011-07-08 10:31:30 +00:00
SelectionDAGBuilder.h	Emit a more efficient magic number multiplication for exact sdivs.	2011-07-08 10:31:30 +00:00
SelectionDAGISel.cpp	Revert r133953 for now.	2011-06-29 23:50:13 +00:00
SelectionDAGPrinter.cpp	Pass the graph to the DOTGraphTraits.getEdgeAttributes().	2011-02-27 04:11:03 +00:00
TargetLowering.cpp	Emit a more efficient magic number multiplication for exact sdivs.	2011-07-08 10:31:30 +00:00
TargetSelectionDAGInfo.cpp	Implement a bunch more TargetSelectionDAGInfo infrastructure.	2010-05-11 17:31:57 +00:00