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llvm-mirror/lib/CodeGen
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Chris Lattner cfc7093ca6 Remove some redundant checks, add a couple of new ones. This allows us to 
compile this:

int foo (unsigned long a, unsigned long long g) {
  return a >= g;
}

To:

foo:
        movl 8(%esp), %eax
        cmpl %eax, 4(%esp)
        setae %al
        cmpl $0, 12(%esp)
        sete %cl
        andb %al, %cl
        movzbl %cl, %eax
        ret

instead of:

foo:
        movl 8(%esp), %eax
        cmpl %eax, 4(%esp)
        setae %al
        movzbw %al, %cx
        movl 12(%esp), %edx
        cmpl $0, %edx
        sete %al
        movzbw %al, %ax
        cmpl $0, %edx
        cmove %cx, %ax
        movzbl %al, %eax
        ret

llvm-svn: 21244
2005-04-12 02:54:39 +00:00
..
SelectionDAG Remove some redundant checks, add a couple of new ones. This allows us to 2005-04-12 02:54:39 +00:00
AsmPrinter.cpp add support for prefix/suffix strings to go around GlobalValue(s) 2005-04-02 12:21:51 +00:00
BranchFolding.cpp Changes For Bug 352 2004-09-01 22:55:40 +00:00
IntrinsicLowering.cpp First step in adding pcmarker intrinsic. Second step (soon) is adding backend support. 2005-03-28 20:05:49 +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 there is no need to remove this instruction, linscan does it already as it 2005-04-09 16:24:20 +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 Consider the livein/out set for a function, allowing targets to not have to 2005-04-09 15:23:25 +00:00
MachineBasicBlock.cpp print the machine CFG in the -print-machineinstrs dump 2005-04-01 06:48:38 +00:00
MachineCodeEmitter.cpp Fix the FIXME, nuke the JIT specific forceCompilationOf method. 2004-11-22 21:54:35 +00:00
MachineFunction.cpp Improve conformance with the Misha spelling benchmark suite 2005-01-30 00:09:23 +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 Simplify/speedup the PEI by not having to scan for uses of the callee saved 2005-01-23 23:13:12 +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 Update these register allocators to set the PhysRegUsed info in MachineFunction. 2005-01-23 22:45:13 +00:00
RegAllocLocal.cpp Update this pass to set PhysRegsUsed info in MachineFunction. 2005-01-23 22:51:56 +00:00
RegAllocSimple.cpp Update physregsused info. 2005-01-23 22:55:45 +00:00
TwoAddressInstructionPass.cpp Use the TargetInstrInfo::commuteInstruction method to commute instructions 2005-01-19 07:08:42 +00:00
UnreachableBlockElim.cpp Fix the missing symbols problem Bill was hitting. Patch contributed by 2005-03-17 15:38:16 +00:00
ValueTypes.cpp Add missing entry. 2005-01-20 17:32:28 +00:00
VirtRegMap.cpp Make sure to notice that explicit physregs are used in the function 2005-04-04 21:35:34 +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