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a3dc3f692c
llvm-6502/lib
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Chris Lattner a3dc3f692c Pull and through and/or/xor. This compiles some bitfield code to: 
mov EAX, DWORD PTR [ESP + 4]
        mov ECX, DWORD PTR [EAX]
        mov EDX, ECX
        add EDX, EDX
        or EDX, ECX
        and EDX, -2147483648
        and ECX, 2147483647
        or EDX, ECX
        mov DWORD PTR [EAX], EDX
        ret

instead of:

        sub ESP, 4
        mov DWORD PTR [ESP], ESI
        mov EAX, DWORD PTR [ESP + 8]
        mov ECX, DWORD PTR [EAX]
        mov EDX, ECX
        add EDX, EDX
        mov ESI, ECX
        and ESI, -2147483648
        and EDX, -2147483648
        or EDX, ESI
        and ECX, 2147483647
        or EDX, ECX
        mov DWORD PTR [EAX], EDX
        mov ESI, DWORD PTR [ESP]
        add ESP, 4
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28122 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-05 06:10:43 +00:00
..
Analysis Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't 2006-04-26 18:34:07 +00:00
Archive more C++ daintiness 2005-12-26 14:31:26 +00:00
AsmParser Make sure CVS versions of yacc and lex files get distributed. 2006-04-12 20:57:05 +00:00
Bytecode use isValidOperands instead of duplicating checks 2006-04-08 04:09:19 +00:00
CodeGen Pull and through and/or/xor. This compiles some bitfield code to: 2006-05-05 06:10:43 +00:00
Debugger Add the README files to the distribution. 2006-04-13 06:39:24 +00:00
ExecutionEngine Adjust to use proper TargetData copy ctor 2006-05-04 21:18:40 +00:00
Linker Add shufflevector support 2006-04-08 01:19:47 +00:00
Support Fix PR743: emit -help output of a tool to cout, not cerr. 2006-04-28 05:36:25 +00:00
System Mingw32 patches supplied by Anton Korobeynikov. 2006-04-29 18:41:44 +00:00
Target Better implementation of truncate. ISel matches it to a pseudo instruction 2006-05-05 05:40:20 +00:00
Transforms Fix Transforms/InstCombine/2006-05-04-DemandedBitCrash.ll 2006-05-04 17:33:35 +00:00
VMCore Add assertions that verify that the actual arguments to a call or invoke match 2006-05-03 00:48:22 +00:00
Makefile Add the Linker library 2004-11-14 21:54:41 +00:00