Chris Lattner d7648c8934 Turn a series of extract_element's feeding a build_vector into a ... vector_shuffle node. For this: void test(__m128 *res, __m128 *A, __m128 *B) { *res = _mm_unpacklo_ps(*A, *B); } we now produce this code: _test: movl 8(%esp), %eax movaps (%eax), %xmm0 movl 12(%esp), %eax unpcklps (%eax), %xmm0 movl 4(%esp), %eax movaps %xmm0, (%eax) ret instead of this: _test: subl $76, %esp movl 88(%esp), %eax movaps (%eax), %xmm0 movaps %xmm0, (%esp) movaps %xmm0, 32(%esp) movss 4(%esp), %xmm0 movss 32(%esp), %xmm1 unpcklps %xmm0, %xmm1 movl 84(%esp), %eax movaps (%eax), %xmm0 movaps %xmm0, 16(%esp) movaps %xmm0, 48(%esp) movss 20(%esp), %xmm0 movss 48(%esp), %xmm2 unpcklps %xmm0, %xmm2 unpcklps %xmm1, %xmm2 movl 80(%esp), %eax movaps %xmm2, (%eax) addl $76, %esp ret GCC produces this (with -fomit-frame-pointer): _test: subl $12, %esp movl 20(%esp), %eax movaps (%eax), %xmm0 movl 24(%esp), %eax unpcklps (%eax), %xmm0 movl 16(%esp), %eax movaps %xmm0, (%eax) addl $12, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27233 91177308-0d34-0410-b5e6-96231b3b80d8		2006-03-28 20:28:38 +00:00
..
SelectionDAG	Turn a series of extract_element's feeding a build_vector into a	2006-03-28 20:28:38 +00:00
AsmPrinter.cpp	Use "llvm.metadata" section for debug globals. Filter out these globals in the	2006-03-07 22:00:35 +00:00
BranchFolding.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
DwarfWriter.cpp	Refactor address attributes. Add base register to frame info.	2006-03-28 14:58:32 +00:00
ELFWriter.cpp	add these so I can be less naughty	2005-12-28 06:29:02 +00:00
IntrinsicLowering.cpp	Handle new forms of llvm.dbg intrinsics.	2006-03-23 18:06:46 +00:00
LiveInterval.cpp	Fix LiveInterval::getOverlapingRanges to take things in the right order	2005-10-21 06:41:30 +00:00
LiveIntervalAnalysis.cpp	Add explicit #includes of <iostream>	2006-01-22 23:41:00 +00:00
LiveVariables.cpp	Add a LiveVariables::VarInfo::dump method	2006-01-04 05:40:30 +00:00
MachineBasicBlock.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
MachineCodeEmitter.cpp	mixed-STL programs are big and nasty :(	2005-12-28 02:44:35 +00:00
MachineDebugInfo.cpp	More bulletproofing of DebugInfoDesc verify.	2006-03-28 01:30:18 +00:00
MachineFunction.cpp	Adjust to MachineConstantPool interface change: instead of keeping a	2006-02-09 04:46:04 +00:00
MachineInstr.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
Makefile	Change Library Names Not To Conflict With Others When Installed	2004-10-27 23:18:45 +00:00
Passes.cpp	Alkis agrees that that iterative scan allocator isn't going to be worked on	2005-10-24 04:14:30 +00:00
PHIElimination.cpp	Add support for targets (like Alpha) that have terminator instructions which	2006-01-04 07:12:21 +00:00
PhysRegTracker.h	Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr	2004-02-23 06:10:13 +00:00
PrologEpilogInserter.cpp	Always compute max align.	2005-11-06 17:43:20 +00:00
RegAllocLinearScan.cpp	Add some comments.	2006-03-25 23:00:56 +00:00
RegAllocLocal.cpp	Add explicit #includes of <iostream>	2006-01-22 23:41:00 +00:00
RegAllocSimple.cpp	Add explicit #includes of <iostream>	2006-01-22 23:41:00 +00:00
TwoAddressInstructionPass.cpp	Add explicit #includes of <iostream>	2006-01-22 23:41:00 +00:00
UnreachableBlockElim.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
VirtRegMap.cpp	Fix a bug that Evan exposed with some changes he's making, and that was	2006-02-25 02:17:31 +00:00
VirtRegMap.h	Remove trailing whitespace	2005-04-21 22:36:52 +00:00