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LLVM backend for 6502
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85e42b45ac
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Chris Lattner 85e42b45ac Reserve G1 for frame offset stuff and use it to handle large stack frames. 
For example, instead of emitting this:

test:
        save -40112, %o6, %o6   ;; imm too large
        add %i6, -40016, %o0    ;; imm too large
        call caller
        nop
        restore %g0, %g0, %g0
        retl
        nop

emit this:

test:
        sethi 4194264, %g1
        or %g1, 848, %g1
        save %o6, %g1, %o6
        sethi 4194264, %g1
        add %g1, %i6, %g1
        add %i1, 944, %o0
        call caller
        nop
        restore %g0, %g0, %g0
        retl
        nop

which doesn't cause the assembler to barf.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24880 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 07:56:31 +00:00
autoconf Added the llvm-kernel project to the list of automatically configured 2005-12-19 20:27:24 +00:00
docs rename options 2005-12-16 05:19:35 +00:00
examples
include/llvm Added a hook to print out names of target specific DAG nodes. 2005-12-20 06:22:03 +00:00
lib Reserve G1 for frame offset stuff and use it to handle large stack frames. 2005-12-20 07:56:31 +00:00
projects
runtime Add the remove() function from the C library. 2005-11-28 15:49:15 +00:00
test A truly trivial testcase to ensure sparcv8 doesn't get completely broken 2005-12-16 06:24:55 +00:00
tools rename option for consistency with -mcpu -mattr etc 2005-12-16 05:19:55 +00:00
utils Now support instructions with implicit write to non-flag registers. 2005-12-20 07:37:41 +00:00
win32 Turn on string pooling for smaller binaries. 2005-12-17 00:14:47 +00:00
Xcode
.cvsignore Ignore the configure.out file generated by "make reconfigure" 2005-06-18 23:01:25 +00:00
configure Added the llvm-kernel project to the list of automatically configured 2005-12-19 20:27:24 +00:00
CREDITS.TXT add Evan and Jim. Please edit your entries as desired. 2005-11-29 00:57:06 +00:00
LICENSE.TXT
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