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7130788ea2
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35509 Commits

Author SHA1 Message Date
Chris Lattner
7130788ea2 add an early out to ProcessBranchOnXOR to speed it up, 
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199

llvm-svn: 94321
 2010-01-23 19:16:25 +00:00
Chris Lattner
e4391a1adb fix a crash in jump threading, PR6119 
llvm-svn: 94319
 2010-01-23 18:56:07 +00:00
Chris Lattner
8909d5aca5 implement a simple instcombine xform that has been in the 
readme forever.

llvm-svn: 94318
 2010-01-23 18:49:30 +00:00
Chris Lattner
744a23610a add a note 
llvm-svn: 94317
 2010-01-23 18:42:37 +00:00
Chris Lattner
fdc6162f82 add some notes, making posix-memalign be nocapture would be an easy improvement. 
llvm-svn: 94312
 2010-01-23 17:59:23 +00:00
Bill Wendling
7449bb010b Remove the '-disable-scheduling' flag and replace it with the 'source' option of 
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.

llvm-svn: 94308
 2010-01-23 10:26:57 +00:00
Benjamin Kramer
252f9b6a26 Respect operator precedence (and silence a gcc 4.3 warning). 
llvm-svn: 94304
 2010-01-23 09:54:23 +00:00
Chris Lattner
617e6fb889 mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
llvm-svn: 94299
 2010-01-23 07:47:02 +00:00
Chris Lattner
7e1fa376cc resolve a fixme: the "nonexecutable stack directive" is actually 
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298
 2010-01-23 07:21:06 +00:00
Chris Lattner
7fe6265555 remove a dead call. 
llvm-svn: 94297
 2010-01-23 07:17:54 +00:00
Chris Lattner
4db62b81c3 use helpers. 
llvm-svn: 94296
 2010-01-23 07:00:21 +00:00
Chris Lattner
56c318f344 mcize visibility directives. 
llvm-svn: 94295
 2010-01-23 06:53:23 +00:00
Chris Lattner
60edc92e39 move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.

llvm-svn: 94294
 2010-01-23 06:39:22 +00:00
Chris Lattner
1b7c00a4f2 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293
 2010-01-23 06:17:14 +00:00
Eric Christopher
e6d6bfcc32 Don't lower splat vector load to relative to the esp if the 
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!

llvm-svn: 94291
 2010-01-23 06:02:43 +00:00
Chris Lattner
62d08f5577 mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
llvm-svn: 94290
 2010-01-23 05:51:36 +00:00
Eric Christopher
bc8f2b1a56 Reapply 94059 while fixing the calling convention setup 
for strcpy.

llvm-svn: 94287
 2010-01-23 05:29:06 +00:00
Chris Lattner
d9cedc9675 remove unneeded directive set. 
llvm-svn: 94286
 2010-01-23 05:28:25 +00:00
Chris Lattner
e41f630fa0 use some helpers instead of duplicating logic. 
llvm-svn: 94285
 2010-01-23 05:26:25 +00:00
Chris Lattner
2ee0376c42 mcize jump table and constant pool entry labels, .local on elf, 
and some .weak directives.

llvm-svn: 94284
 2010-01-23 05:19:23 +00:00
Chris Lattner
20a336f1df emit .ascii and .asciz through MCStreamer. 
llvm-svn: 94282
 2010-01-23 04:54:10 +00:00
Chris Lattner
7223430983 simplify code a bit. 
llvm-svn: 94281
 2010-01-23 04:42:42 +00:00
Mon P Wang
b7fce13b78 InstCombine should not fold sext/zext of a vector and a bitcast to a scalar to a sext/zext 
llvm-svn: 94280
 2010-01-23 04:35:57 +00:00
Ted Kremenek
e45feb24f8 Update CMake build. 
llvm-svn: 94278
 2010-01-23 04:01:37 +00:00
Chris Lattner
e6801b7c24 remove one form of EmitString, just use EmitBytes instead. We must 
be careful to add a \0 at the end though, because EmitString didn't
do this.

llvm-svn: 94277
 2010-01-23 03:11:46 +00:00
Sean Callanan
d50d17e067 Added the skeleton for the implementation of the X86 
target-specific AsmLexer, and added the appropriate
registration calls.

llvm-svn: 94275
 2010-01-23 02:43:15 +00:00
Sean Callanan
1942b96584 Modified the register matcher function in AsmMatcher to 
be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.

llvm-svn: 94266
 2010-01-23 00:40:33 +00:00
Devang Patel
280d341d36 Avoid using "Type" as the variable name. 
llvm-svn: 94262
 2010-01-23 00:26:28 +00:00
Victor Hernandez
7ce9006ba0 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store 
llvm-svn: 94260
 2010-01-23 00:17:34 +00:00
Chris Lattner
e46549ed67 teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
llvm-svn: 94259
 2010-01-23 00:15:00 +00:00
Victor Hernandez
f61bd354ef Make sure ValueFn starts off empty 
llvm-svn: 94256
 2010-01-23 00:03:28 +00:00
Evan Cheng
a238930f0b Enable pre-regalloc scheduling load clustering by default. 
llvm-svn: 94255
 2010-01-22 23:49:45 +00:00
Evan Cheng
1093210d30 Be more conservative with clustering f32 / f64 loads. 
llvm-svn: 94254
 2010-01-22 23:49:11 +00:00
Chris Lattner
f703377447 move "EOL" from asmprinter to dwarfprinter. It should eventually 
be completely eliminated, but today is not that day.

llvm-svn: 94253
 2010-01-22 23:47:11 +00:00
Chris Lattner
22ec298d24 remove uses of EOL. 
llvm-svn: 94252
 2010-01-22 23:43:14 +00:00
Chris Lattner
be728e94f1 add a new EmitCFAByte method and use it. 
llvm-svn: 94251
 2010-01-22 23:40:08 +00:00
Chris Lattner
de2a14c724 move uleb printing from asmprinter to dwarfprinter, mcize, 
cleanup and eliminate a bunch more uses of "EOL".

llvm-svn: 94250
 2010-01-22 23:18:42 +00:00
Jeffrey Yasskin
c200d5e99f Make OProfile support compile again after r93630 removed 
DebugLocTuple.  Also use an AssertingVH to ensure that MDNodes aren't
destroyed while the FilenameCache is using them.

llvm-svn: 94245
 2010-01-22 23:04:39 +00:00
Chris Lattner
6b1e1bb9e9 move sleb printing out of asmprinter into dwarf printer, make clients 
handle the comment better, MCize the non-.sleb case.

llvm-svn: 94244
 2010-01-22 22:56:55 +00:00
Devang Patel
81f0fa06d7 Remove MetadataBase class because it is not adding significant value. 
llvm-svn: 94243
 2010-01-22 22:52:10 +00:00
Dale Johannesen
b1ebe8137b Ignore DEBUG_VALUE when building live intervals; 
this makes the code work transparently the same
whether they're there or not.

llvm-svn: 94240
 2010-01-22 22:38:21 +00:00
Chris Lattner
576e41a375 add a new DwarfPrinter::EmitEncodingByte method which handles 
pretty printing encoding comments and eliminates redundancy on
the client side.  We now get pretty dwarf like this again:

        .byte   255                                         ## @LPStart Encoding = omit
        .byte   0                                           ## @TType Encoding = absptr
        .byte   0x28                                        ## @TType base offset
        .byte   3                                           ## Call site Encoding = udata4
        .byte   0x1a                                        ## Call site table size
...

llvm-svn: 94239
 2010-01-22 22:38:16 +00:00
Chris Lattner
7976cac884 rename the dwarf class to DwarfPrinter. This matches the filename 
and much more accurately describes what it is all about.

llvm-svn: 94233
 2010-01-22 22:23:57 +00:00
Chris Lattner
6779ef9325 fix indentation 
llvm-svn: 94232
 2010-01-22 22:19:51 +00:00
Chris Lattner
2fa5f5ce56 inline away the trivial AsmPrinter::EOL() method. 
llvm-svn: 94230
 2010-01-22 22:09:00 +00:00
Chris Lattner
19abca37d2 inline AsmPrinter::PrintHex into its two trivial callers. 
llvm-svn: 94228
 2010-01-22 21:57:56 +00:00
Chris Lattner
0347671f14 change this to be a static function instead of a method on asmprinter. 
llvm-svn: 94227
 2010-01-22 21:50:41 +00:00
Chris Lattner
92531ea22d make the loop comment printer print out a much better structured 
output.  An example:

        .align  4, 0x90
LBB1_5:                                                     ## %while.cond3
                                                            ##   Parent Loop BB1_1 Depth=1
                                                            ## =>  This Loop Header: Depth=2
                                                            ##       Child Loop BB1_8 Depth 3
                                                            ##       Child Loop BB1_6 Depth 3

llvm-svn: 94225
 2010-01-22 21:43:28 +00:00
Chris Lattner
639c136993 Changes to fix buffering that I forgot to commit with previous patch. 
llvm-svn: 94222
 2010-01-22 21:16:10 +00:00
Chris Lattner
bc2e117803 For blocks that are not loop headers, just print their loop depth and header BB. 
For loop headers, print Inner loop along with the other stuff so it doesn't take
an extra line.  We now get stuff like this:

LBB1_4:                                                     ## %land.end
                                                            ##   in Loop: Header=BB1_1 Depth=1
        notb    %al
        testb   $1, %al
        jne     LBB1_8

and:

LBB1_6:                                                     ## %while.cond7
                                                            ## Inner Loop Header: Depth=3
                                                            ##     Inside Loop BB1_5 Depth 2
                                                            ##   Inside Loop BB1_1 Depth 1

which still isn't great for loop headers, but is much less verbose.

llvm-svn: 94221
 2010-01-22 21:11:06 +00:00