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Author SHA1 Message Date
Chris Lattner
941474486f new bswap idiom 
llvm-svn: 32012
 2006-11-29 07:21:08 +00:00
Chris Lattner
2fd5719f50 implement cast.ll:test35. With this, we recognize: 
unsigned short swp(unsigned short a) {
       return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}

as an idiom for bswap.

llvm-svn: 32011
 2006-11-29 07:18:39 +00:00
Chris Lattner
0fe0a11839 new testcase 
llvm-svn: 32010
 2006-11-29 07:17:32 +00:00
Chris Lattner
03fdea2e74 Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe. 
This implements InstCombine/cast.ll:test34.  It fires hundreds of times on
176.gcc.

llvm-svn: 32009
 2006-11-29 07:04:07 +00:00
Chris Lattner
bedba50acf new testcase 
llvm-svn: 32008
 2006-11-29 07:03:00 +00:00
Chris Lattner
5188a27d52 This fails on mainline. 
llvm-svn: 32007
 2006-11-29 05:19:32 +00:00
Chris Lattner
0409f2c48d Implement Regression/Transforms/InstCombine/bswap-fold.ll, 
folding   seteq (bswap(x)), c -> seteq(x,bswap(c))

llvm-svn: 32006
 2006-11-29 05:02:16 +00:00
Chris Lattner
ff4e213d2d new testcase, bswaps should be eliminated. 
llvm-svn: 32005
 2006-11-29 05:00:14 +00:00
Evan Cheng
52f30d0ff2 16-byte stack alignment for X86-64 ELF. Patch by Dan Gohman. 
llvm-svn: 32004
 2006-11-29 02:00:40 +00:00
Evan Cheng
0be56fab68 Fix for PR1023 by Dan Gohman. 
llvm-svn: 32003
 2006-11-29 01:58:12 +00:00
Evan Cheng
f26e88cfa4 Add test cases for PR1022, 1023. 
llvm-svn: 32002
 2006-11-29 01:57:06 +00:00
Chris Lattner
4e07e4aa24 Upgrade the ugly darwin 64-bit bswap idiom (bswap %eax / bswap %edx / 
xchgl %eax, %edx) to llvm.bswap.i64.  This compiles:

long long test2(long long A) {
  return _OSSwapInt64(A);
}

to:

_test2:
        movl 8(%esp), %eax
        movl 4(%esp), %edx
        bswapl %eax
        bswapl %edx
        ret

instead of:

_test2:
        movl 8(%esp), %edx
        movl 4(%esp), %eax
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        ret

GCC manages (with -fomit-frame-pointer) the uglier:

_test2:
        subl    $4, %esp
        movl    8(%esp), %eax
        movl    12(%esp), %edx
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        addl    $4, %esp
        ret

llvm-svn: 32001
 2006-11-29 01:48:01 +00:00
Evan Cheng
f38588a1cd Fix for PR1022 (folding loads of static initializers) by Dan Gohman. 
llvm-svn: 32000
 2006-11-29 01:38:07 +00:00
Chris Lattner
50d2db3b77 Trivially lower 'bswap $0' into llvm.bswap. This fixes hexxagon with the 
JIT on darwin/x86, which has htonl implemented as inline asm.

llvm-svn: 31999
 2006-11-29 01:14:06 +00:00
Bill Wendling
a5c00d4c4f WTF? These weird newlines got in there... 
llvm-svn: 31998
 2006-11-29 01:14:00 +00:00
Chris Lattner
d00734a230 add a hook to allow targets to hack on inline asms to lower them to llvm 
when they want to.

llvm-svn: 31997
 2006-11-29 01:12:32 +00:00
Reid Spencer
a866877d2f Join a split line. 
llvm-svn: 31996
 2006-11-29 01:11:01 +00:00
Bill Wendling
a29e6c5ec9 Converted to using llvm streams instead of <iostream>s 
llvm-svn: 31992
 2006-11-29 00:39:47 +00:00
Bill Wendling
4effa38086 Replacing std::iostreams with llvm iostreams. Some of these changes involve 
adding a temporary wrapper around the ostream to make it friendly to
functions expecting an LLVM stream. This should be fixed in the future.

llvm-svn: 31990
 2006-11-29 00:19:40 +00:00
Bill Wendling
2477c0ac3d Convert to using llvm streams instead of iostreams. 
llvm-svn: 31989
 2006-11-28 23:33:06 +00:00
Bill Wendling
5def3648f4 Support for llvm_ostreams. 
llvm-svn: 31988
 2006-11-28 23:31:42 +00:00
Andrew Lenharth
e46a408fb9 gcc doesn't like an empty colbber list 
llvm-svn: 31987
 2006-11-28 23:07:32 +00:00
Bill Wendling
c942df4921 Use ostream instead of iostream 
llvm-svn: 31986
 2006-11-28 22:49:32 +00:00
Bill Wendling
d8c0883f20 Use llvm streams instead of <iostream> 
llvm-svn: 31985
 2006-11-28 22:48:48 +00:00
Bill Wendling
35041c7c45 Removed #include <iostream> and used llvm streams 
llvm-svn: 31984
 2006-11-28 22:47:12 +00:00
Bill Wendling
040a60d22d Removed some of the iostream #includes. Moved towards converting to using 
llvm streams

llvm-svn: 31983
 2006-11-28 22:46:12 +00:00
Bill Wendling
4688855715 Support for llvm streams. 
llvm-svn: 31982
 2006-11-28 22:45:17 +00:00
Chris Lattner
339c732e0b Add a helper function 
llvm-svn: 31981
 2006-11-28 22:32:35 +00:00
Andrew Lenharth
aee28a6544 Identities are default now 
llvm-svn: 31980
 2006-11-28 22:28:08 +00:00
Andrew Lenharth
a32f3e30b3 Make identity default, and fix PR1020 
llvm-svn: 31979
 2006-11-28 22:25:32 +00:00
Bill Wendling
4157840bd6 Added a temporary hack to get the llvm-streams to work for future checkins. 
llvm-svn: 31978
 2006-11-28 22:21:29 +00:00
Reid Spencer
c48fe0fd4d Undo the last patch until 253.perlbmk passes with these changes. 
llvm-svn: 31977
 2006-11-28 20:23:51 +00:00
Evan Cheng
27408161df New entries. 
llvm-svn: 31976
 2006-11-28 19:59:25 +00:00
Andrew Lenharth
7669b3acc5 update comments 
llvm-svn: 31975
 2006-11-28 19:56:02 +00:00
Andrew Lenharth
d93af28924 Get the asminfo for the target most closely matching the module and use that for inline asm 
llvm-svn: 31974
 2006-11-28 19:53:36 +00:00
Andrew Lenharth
c0ee1250ad X86 asm -> gcc asm translation table (incomplete) 
llvm-svn: 31973
 2006-11-28 19:52:49 +00:00
Andrew Lenharth
c51f451af5 Add per-target support for asm translation in the cbe 
llvm-svn: 31972
 2006-11-28 19:52:20 +00:00
Jim Laskey
7b0a74da3c Remove debug code. 
llvm-svn: 31970
 2006-11-28 18:27:02 +00:00
Jim Laskey
737f53b6aa Prime text sections to improve branch locality in large object files. 
llvm-svn: 31969
 2006-11-28 18:21:52 +00:00
Jim Laskey
a5c5ceb212 32-bit int space was not accounted for properly in lowerCall. 
llvm-svn: 31966
 2006-11-28 14:53:52 +00:00
Reid Spencer
2e6a2775db Regenerate. 
llvm-svn: 31965
 2006-11-28 07:29:44 +00:00
Reid Spencer
05a440d447 Implement signedness caching for values, value lists, constants and 
constant lists. This is just an internal change to the parser in
preparation for some backwards compatibility code that is to follow.
This will allow things like "uint 4000000000" to retain the unsignedness
of the integer constant as the value moves through the parser. In the
future, all integer types will be signless but parsing "uint" and friends
will be retained for backwards compatibility.

llvm-svn: 31964
 2006-11-28 07:28:14 +00:00
Reid Spencer
8587322e79 Remove 4 FIXME's from the CAST patch now that the back end is correctly 
producing code for "trunc to bool". This passes all tests on Linux.

llvm-svn: 31963
 2006-11-28 07:23:01 +00:00
Reid Spencer
b7f47f0420 Add an -append-exit-code option to bugpoint. This will cause bugpoint to 
append "exit <retcode>" to the end of the output file. This is used by
the nightly tester to make bugpoint match the output generated by the
RunSafely.sh script so it doesn't find false positives.

llvm-svn: 31960
 2006-11-28 07:04:10 +00:00
Reid Spencer
3d65b7aef6 Fix a typo. 
llvm-svn: 31959
 2006-11-28 06:14:06 +00:00
Bill Wendling
a80e3dc0c0 Put the #include for a module first. 
llvm-svn: 31958
 2006-11-28 03:31:29 +00:00
Evan Cheng
e176869ec0 Clean up. 
llvm-svn: 31957
 2006-11-28 02:25:34 +00:00
Evan Cheng
40044ef4b0 Fix indentation. 
llvm-svn: 31956
 2006-11-28 02:22:51 +00:00
Bill Wendling
aa02717a76 Changed to using LLVM streams. 
llvm-svn: 31955
 2006-11-28 02:09:03 +00:00
Bill Wendling
7e9cea955c Changed to using llvm streams. 
llvm-svn: 31954
 2006-11-28 02:08:17 +00:00