Chris Lattner e6f7c267df Change handling of illegal vector types to widen when possible instead of ... expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats. This affects two places in the code: handling cross block values and handling function return and arguments. Since vectors are already widened by legalizetypes, this gives us much better code and unblocks x86-64 abi and SPU abi work. For example, this (which is a silly example of a cross-block value): define <4 x float> @test2(<4 x float> %A) nounwind { %B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1> %C = fadd <2 x float> %B, %B br label %BB BB: %D = fadd <2 x float> %C, %C %E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef> ret <4 x float> %E } Now compiles into: _test2: ## @test2 ## BB#0: addps %xmm0, %xmm0 addps %xmm0, %xmm0 ret previously it compiled into: _test2: ## @test2 ## BB#0: addps %xmm0, %xmm0 pshufd $1, %xmm0, %xmm1 ## kill: XMM0<def> XMM0<kill> XMM0<def> insertps $0, %xmm0, %xmm0 insertps $16, %xmm1, %xmm0 addps %xmm0, %xmm0 ret This implements rdar://8230384 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112101 91177308-0d34-0410-b5e6-96231b3b80d8		2010-08-25 22:49:25 +00:00
..
CMakeLists.txt	Move CallingConvLower.cpp out of the SelectionDAG directory.	2010-07-07 15:15:27 +00:00
DAGCombiner.cpp	Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself	2010-07-27 18:02:18 +00:00
FastISel.cpp	Fix typo.	2010-08-17 01:30:33 +00:00
FunctionLoweringInfo.cpp	It's better to have the arrays, which would trigger the creation of stack	2010-07-27 01:55:19 +00:00
InstrEmitter.cpp	Emit COPY instructions instead of using copyRegToReg in InstrEmitter,	2010-07-10 19:08:25 +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	Fix some GCC warnings by providing a virtual destructor in the base of a class	2010-08-23 08:25:07 +00:00
LegalizeFloatTypes.cpp	Convert some tab stops into spaces.	2010-07-12 08:16:59 +00:00
LegalizeIntegerTypes.cpp	80-col.	2010-07-23 01:05:59 +00:00
LegalizeTypes.cpp	Use A.append(...) instead of A.insert(A.end(), ...) when A is a	2010-06-21 19:47:52 +00:00
LegalizeTypes.h	tidy up, reduce indentation	2010-08-24 22:43:11 +00:00
LegalizeTypesGeneric.cpp	Fix va_arg for doubles. With this patch VAARG nodes always contain the	2010-07-11 04:01:49 +00:00
LegalizeVectorOps.cpp	Change UpdateNodeOperands' operand and return value from SDValue to	2010-06-18 15:30:29 +00:00
LegalizeVectorTypes.cpp	tidy up, reduce indentation	2010-08-24 22:43:11 +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	The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling.	2010-07-26 21:49:07 +00:00
ScheduleDAGSDNodes.cpp	Add missing null check reported by Amaury Pouly.	2010-08-10 02:39:45 +00:00
ScheduleDAGSDNodes.h	Code refactoring, no functionality changes.	2010-06-10 02:09:31 +00:00
SDNodeDbgValue.h	Add const qualifiers to CodeGen's use of LLVM IR constructs.	2010-04-15 01:51:59 +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	Prefix next' iterator operation with llvm::'.	2010-08-02 06:00:15 +00:00
SelectionDAGBuilder.cpp	Change handling of illegal vector types to widen when possible instead of	2010-08-25 22:49:25 +00:00
SelectionDAGBuilder.h	Fix comment.	2010-08-25 20:41:24 +00:00
SelectionDAGISel.cpp	Reapply r110396, with fixes to appease the Linux buildbot gods.	2010-08-06 18:33:48 +00:00
SelectionDAGPrinter.cpp	Eliminate unnecessary empty string literals.	2010-08-04 01:39:08 +00:00
TargetLowering.cpp	Change handling of illegal vector types to widen when possible instead of	2010-08-25 22:49:25 +00:00
TargetSelectionDAGInfo.cpp	Implement a bunch more TargetSelectionDAGInfo infrastructure.	2010-05-11 17:31:57 +00:00