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LLVM backend for 6502
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a188894d67
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Chris Lattner a188894d67 Implement a little hack for parity with GCC on crafty. This speeds up 
186.crafty by about 16% (from 15.109s to 13.045s) on my system.

This turns allocas with unions/casts into scalars.  For example crafty has
something like this:

    union doub {
      unsigned short i[4];
      long long d;
    };
int f(long long a) {
  return ((union doub){.d=a}).i[1];
}

Instead of generating loads and stores to an alloca, we now promote the
whole thing to a scalar long value.

This implements: Transforms/ScalarRepl/AggregatePromote.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24667 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 07:19:13 +00:00
autoconf add malloc_zone_statistics, remove mstats 2005-11-14 07:24:17 +00:00
docs attribute((used)) is now supported 2005-12-05 05:23:06 +00:00
examples When a function takes a variable number of pointer arguments, with a zero 2005-10-23 04:37:20 +00:00
include/llvm Added new getNode and getTargetNode variants for X86 stores. 2005-12-10 00:37:58 +00:00
lib Implement a little hack for parity with GCC on crafty. This speeds up 2005-12-12 07:19:13 +00:00
projects unbreak the build again 2005-10-27 16:30:44 +00:00
runtime Add the remove() function from the C library. 2005-11-28 15:49:15 +00:00
test new testcase: sra should be able to eliminate all of these alloca's, despite 2005-12-12 07:18:59 +00:00
tools This solves the problem of the CBE renaming symbols that start with . but the assembly side still trying to reference them by their old names. Should be safe untill we hit a language front end that lets you specify such a name. 2005-12-06 20:51:30 +00:00
utils Send an indicator to llvm-testresults if the build failed 2005-12-11 19:55:39 +00:00
win32 Teach Visual Studio about new files. 2005-11-28 06:46:36 +00:00
Xcode Remove the lowerconstantexprs pass 2005-10-29 05:34:40 +00:00
.cvsignore Ignore the configure.out file generated by "make reconfigure" 2005-06-18 23:01:25 +00:00
configure regenearte 2005-11-14 07:25:50 +00:00
CREDITS.TXT add Evan and Jim. Please edit your entries as desired. 2005-11-29 00:57:06 +00:00
LICENSE.TXT
llvm.spec Onward to LLVM-1.6 and beyond! 2005-05-18 20:23:20 +00:00
llvm.spec.in Onward to LLVM-1.6 and beyond! 2005-05-18 20:23:20 +00:00
Makefile For PR614: 2005-08-25 04:59:49 +00:00
Makefile.common
Makefile.config.in
Makefile.rules Move some constant folding code shared by Analysis and Transform passes 2005-10-27 15:54:34 +00:00
README.txt

README.txt 

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

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LLVM is open source software. You may freely distribute it under the terms of
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Please see the HTML documentation provided in docs/index.html for further
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