Nate Begeman 56eb86806d Add support for AssertSext and AssertZext, folding other extensions with ... them. This allows for elminination of redundant extends in the entry blocks of functions on PowerPC. Add support for i32 x i32 -> i64 multiplies, by recognizing when the inputs to ISD::MUL in ExpandOp are actually just extended i32 values and not real i64 values. this allows us to codegen int mulhs(int a, int b) { return ((long long)a * b) >> 32; } as: _mulhs: mulhw r3, r4, r3 blr instead of: _mulhs: mulhwu r2, r4, r3 srawi r5, r3, 31 mullw r5, r4, r5 add r2, r2, r5 srawi r4, r4, 31 mullw r3, r4, r3 add r3, r2, r3 blr with a similar improvement on x86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23147 91177308-0d34-0410-b5e6-96231b3b80d8		2005-08-30 02:44:00 +00:00
..
SelectionDAG	Add support for AssertSext and AssertZext, folding other extensions with	2005-08-30 02:44:00 +00:00
AsmPrinter.cpp	Culling out use of unions for converting FP to bits and vice versa.	2005-08-17 19:34:49 +00:00
BranchFolding.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
ELFWriter.cpp	Fix VC++ constant truncation warning.	2005-08-19 16:19:21 +00:00
IntrinsicLowering.cpp	Eliminate all remaining tabs and trailing spaces.	2005-07-27 06:12:32 +00:00
LiveInterval.cpp	Print the symbolic register name in a register allocator debug dump.	2005-05-14 05:34:15 +00:00
LiveInterval.h	Print the symbolic register name in a register allocator debug dump.	2005-05-14 05:34:15 +00:00
LiveIntervalAnalysis.cpp	Simplify this code by using higher-level LiveVariables methods	2005-08-23 22:51:41 +00:00
LiveIntervalAnalysis.h	Allow the live interval analysis pass to be a bit more aggressive about	2005-03-09 23:05:19 +00:00
LiveVariables.cpp	Implement LiveVariables.h change	2005-08-24 00:09:33 +00:00
MachineBasicBlock.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
MachineCodeEmitter.cpp	new is not a valid default anywhere, so make this pure virtual	2005-07-28 18:13:59 +00:00
MachineFunction.cpp	print stack object alignment in -print-machineinstr dumps	2005-05-13 22:54:44 +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	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
PHIElimination.cpp	adjust to new live variables interface	2005-08-23 23:42:17 +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	Fix a bug in my previous patch that was using the wrong iterator. This fixes	2005-08-29 00:10:46 +00:00
RegAllocIterativeScan.cpp	Update these register allocators to set the PhysRegUsed info in MachineFunction.	2005-01-23 22:45:13 +00:00
RegAllocLinearScan.cpp	Keep track of which registers are related to which other registers.	2005-08-23 22:27:31 +00:00
RegAllocLocal.cpp	adjust to new live variables interface	2005-08-23 23:42:17 +00:00
RegAllocSimple.cpp	Convert tabs to spaces	2005-04-22 04:01:18 +00:00
TwoAddressInstructionPass.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
UnreachableBlockElim.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
VirtRegMap.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
VirtRegMap.h	Remove trailing whitespace	2005-04-21 22:36:52 +00:00