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Mirror of https://github.com/RPCS3/llvm-mirror
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9be6a214ff
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Nate Begeman 9be6a214ff Teach the legalizer how to legalize FP_TO_UINT. 
Teach the legalizer to promote FP_TO_UINT to FP_TO_SINT if the wider
  FP_TO_UINT is also illegal.  This allows us on PPC to codegen
  unsigned short foo(float a) { return a; }

as:
_foo:
.LBB_foo_0:     ; entry
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        rlwinm r3, r2, 0, 16, 31
        blr

instead of:
_foo:
.LBB_foo_0:     ; entry
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        lis r3, ha16(.CPI_foo_0)
        lfs f0, lo16(.CPI_foo_0)(r3)
        fcmpu cr0, f1, f0
        blt .LBB_foo_2  ; entry
.LBB_foo_1:     ; entry
        fsubs f0, f1, f0
        fctiwz f0, f0
        stfd f0, -16(r1)
        lwz r2, -12(r1)
        xoris r2, r2, 32768
.LBB_foo_2:     ; entry
        rlwinm r3, r2, 0, 16, 31
        blr

llvm-svn: 22785
2005-08-14 01:20:53 +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 Teach the legalizer how to legalize FP_TO_UINT. 2005-08-14 01:20:53 +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
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)
================================

This directory and its subdirectories contain source code for the Low Level 
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments. 

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
assistance with LLVM.