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LLVM backend for 6502
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571e434a34
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Chris Lattner 571e434a34 Turn conditions like x<Y|z==q into multiple blocks. 
This compiles Regression/CodeGen/X86/or-branch.ll into:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $5, %eax
        jl LBB1_1       #cond_true
LBB1_3: #entry
        testl %ecx, %ecx
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

instead of:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $4, %eax
        setg %al
        testl %ecx, %ecx
        setne %cl
        testb %cl, %al
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

And on ppc to:

        cmpwi cr0, r29, 5
        blt cr0, LBB1_1 ;cond_true
LBB1_3: ;entry
        cmplwi cr0, r30, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

instead of:

        cmpwi cr7, r4, 4
        mfcr r2
        addic r4, r3, -1
        subfe r30, r4, r3
        rlwinm r29, r2, 30, 31, 31
        and r2, r29, r30
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27 21:36:01 +00:00
autoconf Fix misleading warning message 2006-10-02 17:23:42 +00:00
docs For PR950: 2006-10-26 06:15:43 +00:00
examples For PR950: 2006-10-20 07:07:24 +00:00
include/llvm Turn conditions like x<Y|z==q into multiple blocks. 2006-10-27 21:36:01 +00:00
lib Turn conditions like x<Y|z==q into multiple blocks. 2006-10-27 21:36:01 +00:00
projects For PR950: 2006-10-26 06:15:43 +00:00
runtime
test new testcase 2006-10-27 21:32:10 +00:00
tools Forgot a } 2006-10-27 20:22:04 +00:00
utils 80 cols fix. 2006-10-19 15:24:04 +00:00
win32
Xcode
.cvsignore Add llvm.spec, a generated file. 2006-10-18 19:23:56 +00:00
configure fix misleading warning 2006-10-02 17:24:55 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Targets should depend on all the intrinsics.td files also, otherwise they 2006-10-24 20:32:44 +00:00
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
================================

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Virtual Machine, a toolkit for the construction of highly optimized compilers,
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LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
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