Chris Lattner 14810c808b Add a couple dag combines to transform mulhi/mullo into a wider multiply ... when the wider type is legal. This allows us to compile: define zeroext i16 @test1(i16 zeroext %x) nounwind { entry: %div = udiv i16 %x, 33 ret i16 %div } into: test1: # @test1 movzwl 4(%esp), %eax imull $63551, %eax, %eax # imm = 0xF83F shrl $21, %eax ret instead of: test1: # @test1 movw $-1985, %ax # imm = 0xFFFFFFFFFFFFF83F mulw 4(%esp) andl $65504, %edx # imm = 0xFFE0 movl %edx, %eax shrl $5, %eax ret Implementing rdar://8760399 and example #4 from: http://blog.regehr.org/archives/320 We should implement the same thing for [su]mul_hilo, but I don't have immediate plans to do this. llvm-svn: 121696		2010-12-13 08:39:01 +00:00
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CMakeLists.txt	Removed a bunch of unnecessary target_link_libraries.	2010-09-28 22:39:14 +00:00
DAGCombiner.cpp	Add a couple dag combines to transform mulhi/mullo into a wider multiply	2010-12-13 08:39:01 +00:00
FastISel.cpp	If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0.	2010-12-06 22:39:26 +00:00
FunctionLoweringInfo.cpp	Reapply r112623. Included additional check for unused byval argument.	2010-08-31 22:22:42 +00:00
InstrEmitter.cpp	Reword comment slightly.	2010-12-08 22:21:42 +00:00
InstrEmitter.h	Don't set kill flags for instructions which the scheduler has cloned.	2010-05-14 22:01:14 +00:00
LegalizeDAG.cpp	Initial support for nested CALLSEQ_START/CALLSEQ_END constructs in LegalizeDAG.	2010-12-09 21:25:20 +00:00
LegalizeFloatTypes.cpp	PR5207: Rename overloaded APInt methods set(), clear(), flip() to	2010-12-01 08:53:58 +00:00
LegalizeIntegerTypes.cpp	PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and	2010-12-07 08:25:19 +00:00
LegalizeTypes.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeTypes.h	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeTypesGeneric.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeVectorOps.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeVectorTypes.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +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	Make fast scheduler handle asm clobbers correctly.	2010-08-17 22:17:24 +00:00
ScheduleDAGList.cpp	Trim #include.	2010-05-26 00:55:59 +00:00
ScheduleDAGRRList.cpp	Two sets of changes. Sorry they are intermingled.	2010-11-03 00:45:17 +00:00
ScheduleDAGSDNodes.cpp	Two sets of changes. Sorry they are intermingled.	2010-11-03 00:45:17 +00:00
ScheduleDAGSDNodes.h	Teach if-converter to be more careful with predicating instructions that would	2010-09-10 01:29:16 +00:00
SDNodeDbgValue.h	Merge System into Support.	2010-11-29 18:16:10 +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	Catch attempts to remove a deleted node from the CSE maps. Better to	2010-12-12 13:22:50 +00:00
SelectionDAGBuilder.cpp	reduce indentation by using continue, no functionality change.	2010-12-13 01:11:17 +00:00
SelectionDAGBuilder.h	When isel is emitting instructions for an x86 target without CMOV, the CFG is	2010-09-30 19:44:31 +00:00
SelectionDAGISel.cpp	Check for _setjmp too, because it's also used.	2010-11-20 00:03:09 +00:00
SelectionDAGPrinter.cpp	Eliminate unnecessary empty string literals.	2010-08-04 01:39:08 +00:00
TargetLowering.cpp	PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and	2010-12-07 08:25:19 +00:00
TargetSelectionDAGInfo.cpp	Implement a bunch more TargetSelectionDAGInfo infrastructure.	2010-05-11 17:31:57 +00:00