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LLVM backend for 6502
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5a01481585
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Nate Begeman 5a01481585 Make FP_TO_UINT Illegal. This allows us to generate significantly better 
codegen for FP_TO_UINT by using the legalizer's SELECT variant.

Implement a codegen improvement for SELECT_CC, selecting the false node in
the MBB that feeds the phi node.  This allows us to codegen:
void foo(int *a, int b, int c) { int d = (a < b) ? 5 : 9; *a = d; }
as:
_foo:
        li r2, 5
        cmpw cr0, r4, r3
        bgt .LBB_foo_2  ; entry
.LBB_foo_1:     ; entry
        li r2, 9
.LBB_foo_2:     ; entry
        stw r2, 0(r3)
        blr

insted of:
_foo:
        li r2, 5
        li r5, 9
        cmpw cr0, r4, r3
        bgt .LBB_foo_2  ; entry
.LBB_foo_1:     ; entry
        or r2, r5, r5
.LBB_foo_2:     ; entry
        stw r2, 0(r3)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22784 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14 01:17:16 +00:00
autoconf Fix PR608: 2005-07-27 21:58:38 +00:00
docs Update a doc, patch contributed by Jim Laskey! 2005-08-02 19:14:25 +00:00
examples Eliminate all remaining tabs and trailing spaces. 2005-07-27 06:12:32 +00:00
include/llvm Remove an unncessary argument to SimplifySelectCC and add an additional 2005-08-13 06:14:17 +00:00
lib Make FP_TO_UINT Illegal. This allows us to generate significantly better 2005-08-14 01:17:16 +00:00
projects oops 2005-07-05 16:36:18 +00:00
runtime
test Added test cases to guarantee use of ORC and ANDC. 2005-08-12 23:40:14 +00:00
tools If the user interrupts bugpoint, don't extract loops 2005-08-02 23:25:56 +00:00
utils make is the standard name, not gmake 2005-08-02 00:10:52 +00:00
win32 Fix VC++ build problems. 2005-07-30 18:22:27 +00:00
Xcode First rev of Xcode 2.1 project 2005-08-11 22:19:26 +00:00
.cvsignore Ignore the configure.out file generated by "make reconfigure" 2005-06-18 23:01:25 +00:00
configure Fix PR608: 2005-07-27 21:58:38 +00:00
CREDITS.TXT Add a note, people are responsible for requesting that they be added to the 2005-08-02 22:10:21 +00:00
LICENSE.TXT Remove extraneous colons after program names for consistency 2005-05-12 21:39:01 +00:00
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 Make sure the tools get built if no build target is specified. 2005-05-29 00:49:24 +00:00
Makefile.common
Makefile.config.in
Makefile.rules Fix oversized GOT problem with gcc-4 on alpha 2005-08-13 05:09:50 +00:00
README.txt

README.txt 

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

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