LLVM backend for 6502

Chris Lattner 5b497ee7c2 Add new cleanup pass: ... // 1. PHI nodes with multiple entries for the same predecessor. GCC sometimes // generates code that looks like this: // // bb7: br bool %cond1004, label %bb8, label %bb8 // bb8: %reg119 = phi uint [ 0, %bb7 ], [ 1, %bb7 ] // // which is completely illegal LLVM code. To compensate for this, we insert // an extra basic block, and convert the code to look like this: // // bb7: br bool %cond1004, label %bbX, label %bb8 // bbX: br label bb8 // bb8: %reg119 = phi uint [ 0, %bbX ], [ 1, %bb7 ] // git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1114 91177308-0d34-0410-b5e6-96231b3b80d8		2001-11-03 21:08:59 +00:00
docs	Implemented constant propogation of cast instructions	2001-10-31 05:07:57 +00:00
include	Add a helper function to PHI node	2001-11-03 21:08:00 +00:00
lib	Add new cleanup pass:	2001-11-03 21:08:59 +00:00
support/lib/Support	Checkin of C string stuff. Fix several bugs, including most escape codes being	2001-10-29 13:28:00 +00:00
test	Start testing the new cleangcc pass	2001-10-31 06:36:34 +00:00
tools	Move the Raise xform from opt to transforms	2001-11-01 02:41:09 +00:00
utils	Print .def files as well as other files	2001-09-19 16:51:10 +00:00
getsomesrcs.sh	Filter out noncore stuff	2001-07-25 22:46:22 +00:00
getsrcs.sh	Print .def files as well as other files	2001-09-19 16:51:10 +00:00
Makefile	Initial revision	2001-06-06 20:29:01 +00:00
Makefile.common	Add easy way to enable purify support	2001-10-30 20:24:08 +00:00
Makefile.rules	Add easy way to enable purify support	2001-10-30 20:24:08 +00:00