Chris Lattner abd2182875 Add a simple transformation. This allows us to compile one of the inner ... loops in stepanov to this: .LBB_Z5test0PdS__2: # no_exit.1 fldl data(,%eax,8) fldl 24(%esp) faddp %st(1) fstl 24(%esp) incl %eax cmpl $2000, %eax fstpl 16(%esp) #FP_REG_KILL jl .LBB_Z5test0PdS__2 instead of this: .LBB_Z5test0PdS__2: # no_exit.1 fldl data(,%eax,8) fldl 24(%esp) faddp %st(1) fstl 24(%esp) incl %eax movl $data, %ecx movl %ecx, %edx addl $16000, %edx subl %ecx, %edx movl %edx, %ecx sarl $2, %ecx shrl $29, %ecx addl %ecx, %edx sarl $3, %edx cmpl %edx, %eax fstpl 16(%esp) #FP_REG_KILL jl .LBB_Z5test0PdS__2 The old instruction selector produced: .LBB_Z5test0PdS__2: # no_exit.1 fldl 24(%esp) faddl data(,%eax,8) fstl 24(%esp) movl %eax, %ecx incl %ecx incl %eax leal data+16000, %edx movl $data, %edi subl %edi, %edx movl %edx, %edi sarl $2, %edi shrl $29, %edi addl %edi, %edx sarl $3, %edx cmpl %edx, %ecx fstpl 16(%esp) #FP_REG_KILL jl .LBB_Z5test0PdS__2 # no_exit.1 Which is even worse! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19419 91177308-0d34-0410-b5e6-96231b3b80d8		2005-01-09 20:09:57 +00:00
..
SelectionDAG	Add a simple transformation. This allows us to compile one of the inner	2005-01-09 20:09:57 +00:00
AsmPrinter.cpp	Silence VS warnings	2005-01-08 19:59:10 +00:00
BranchFolding.cpp	Changes For Bug 352	2004-09-01 22:55:40 +00:00
IntrinsicLowering.cpp	Fix #includes of i*.h => Instructions.h as per PR403.	2004-07-29 17:30:56 +00:00
LiveInterval.cpp	Prevent accessing past the end of the intervals vector, this fixes	2004-12-04 01:22:09 +00:00
LiveInterval.h	Fix typeo	2004-11-18 04:31:10 +00:00
LiveIntervalAnalysis.cpp	Silence warnings from VS	2005-01-08 19:55:00 +00:00
LiveIntervalAnalysis.h	For PR387:\	2004-12-07 04:03:45 +00:00
LiveVariables.cpp	Do not use variable sized arrays in C++, they are non-portable. Patch	2004-10-25 18:44:14 +00:00
MachineBasicBlock.cpp	Move method bodies that depend on <algorithm> from MBB.h to MBB.cpp	2004-10-26 15:43:42 +00:00
MachineCodeEmitter.cpp	Fix the FIXME, nuke the JIT specific forceCompilationOf method.	2004-11-22 21:54:35 +00:00
MachineFunction.cpp	Silence warnings from VS	2005-01-08 19:55:00 +00:00
MachineInstr.cpp	Allow machine operands to represent global variables with offsets. This is	2004-10-15 04:38:41 +00:00
Makefile	Change Library Names Not To Conflict With Others When Installed	2004-10-27 23:18:45 +00:00
Passes.cpp	Changes For Bug 352	2004-09-01 22:55:40 +00:00
PHIElimination.cpp	Changes For Bug 352	2004-09-01 22:55:40 +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	Put this change back in after testing from Reid proved its innocence. getSpillSize now returns value in bits	2004-08-29 22:00:24 +00:00
RegAllocIterativeScan.cpp	Silence VS warnings	2005-01-08 19:53:50 +00:00
RegAllocLinearScan.cpp	Silence VS warnings	2005-01-08 19:53:50 +00:00
RegAllocLocal.cpp	Clean up the MachineBasicBlock.h file, percolating #includes into this file.	2004-10-26 15:35:58 +00:00
RegAllocSimple.cpp	Changes For Bug 352	2004-09-01 22:55:40 +00:00
TwoAddressInstructionPass.cpp	Make the 2-address instruction lowering pass smarter in two ways:	2005-01-02 02:34:12 +00:00
UnreachableBlockElim.cpp	Changes For Bug 352	2004-09-01 22:55:40 +00:00
VirtRegMap.cpp	Clean up the MachineBasicBlock.h file, percolating #includes into this file.	2004-10-26 15:35:58 +00:00
VirtRegMap.h	When a virtual register is folded into an instruction, keep track of whether	2004-10-01 23:15:36 +00:00