llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-14 02:33:53 +00:00

History

Chris Lattner 41e431ba04 Teach the code generator that shrd/shld is commutable if it has an immediate.

This allows us to generate this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, DWORD PTR [%ESP + 8]
        shld %EDX, %EDX, 2
        shl %EAX, 2
        ret

instead of this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EDX, %EAX
        shrd %EDX, %ECX, 30
        shl %EAX, 2
        ret

Note the magically transmogrifying immediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19686 91177308-0d34-0410-b5e6-96231b3b80d8

2005-01-19 07:11:01 +00:00

CBackend

Fix CBE code so that it compiles with VC++.

2005-01-06 04:21:49 +00:00

PowerPC

Fix Regression/CodeGen/PowerPC/2005-01-14-UndefLong.ll

2005-01-14 20:22:02 +00:00

Skeleton

ignore generated files

2004-11-21 00:01:54 +00:00

Sparc

Substantially improve the code generated by non-folded setcc instructions.