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Author SHA1 Message Date
Chris Lattner
358e9432a1 set DEBUG_TYPE right 
llvm-svn: 30623
 2006-09-27 04:58:23 +00:00
Devang Patel
e7c6b0e0e5 Add http://llvm.org/bugs/show_bug.cgi?id=923 test case. 
llvm-svn: 30622
 2006-09-27 02:58:44 +00:00
Chris Lattner
26213b40aa Use abstract private/comment directives, to increase portability to ppc/linux 
llvm-svn: 30621
 2006-09-27 02:55:21 +00:00
Chris Lattner
433de75585 Add support for ${:private} which prints "L" on darwin. 
llvm-svn: 30620
 2006-09-27 00:06:07 +00:00
Chris Lattner
ddf92db1ca Add support for ${:comment}, which expands to the current target's comment 
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

llvm-svn: 30619
 2006-09-26 23:59:50 +00:00
Chris Lattner
7c98cc2aab Actually, name the method PrintSpecial to match other stuff in AsmPrinter.h 
llvm-svn: 30618
 2006-09-26 23:47:10 +00:00
Chris Lattner
10e06fa138 Add support for ${:foo} syntax, where "foo" is passed into "printSpecial" and 
has no associated operand.  This is useful for portably encoding stuff like
the comment character into an asm string.

llvm-svn: 30617
 2006-09-26 23:45:08 +00:00
Evan Cheng
310d2abd29 Rename function. It's determining which callee-save registers to save. 
llvm-svn: 30616
 2006-09-26 22:29:31 +00:00
Andrew Lenharth
96c41b6c3c Comments on JumpTableness 
llvm-svn: 30615
 2006-09-26 20:02:30 +00:00
Jim Laskey
74ba822f79 Load chain check is not needed 
llvm-svn: 30613
 2006-09-26 17:44:58 +00:00
Jim Laskey
2a8d8270eb Chain can be any operand 
llvm-svn: 30611
 2006-09-26 09:32:41 +00:00
Jim Laskey
ae81857cba Wrong size for load 
llvm-svn: 30610
 2006-09-26 08:14:06 +00:00
Jim Laskey
d72f4cfe04 Can't move a load node if it's chain is not used. 
llvm-svn: 30609
 2006-09-26 07:37:42 +00:00
Chris Lattner
b826d65e01 Various random and minor code cleanups. 
llvm-svn: 30608
 2006-09-26 03:57:53 +00:00
Chris Lattner
c5f6ea0da9 test that the no_dead_strip directive is emitted on darwin-x86 
llvm-svn: 30607
 2006-09-26 03:44:20 +00:00
Chris Lattner
c628ee3402 print the preds of each MBB 
llvm-svn: 30606
 2006-09-26 03:41:59 +00:00
Chris Lattner
09176ab54f Compile: 
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

llvm-svn: 30605
 2006-09-26 03:39:53 +00:00
Chris Lattner
167aa73273 Add support for targets that want to do something with the llvm.used list, 
because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604
 2006-09-26 03:38:18 +00:00
Chris Lattner
bab51c66fc order this properly to avoid warnings in TargetAsmInfo.cpp. Add a comment 
in a format that matches every other ivars in this class.

llvm-svn: 30603
 2006-09-25 22:38:36 +00:00
Jim Laskey
6ae9f53d2c Accidental enable of bad code 
llvm-svn: 30601
 2006-09-25 21:11:32 +00:00
Jim Laskey
640b7dbed5 Fix chain dropping in load and drop unused stores in ret blocks. 
llvm-svn: 30600
 2006-09-25 19:32:58 +00:00
John Criswell
eda10c2fcd Regression test for PR#922. 
llvm-svn: 30599
 2006-09-25 19:12:01 +00:00
Chris Lattner
2281c3f6ca more notes 
llvm-svn: 30598
 2006-09-25 17:12:14 +00:00
Jim Laskey
ba2f6127b2 Core antialiasing for load and store. 
llvm-svn: 30597
 2006-09-25 16:29:54 +00:00
Andrew Lenharth
9746e69742 Fix 
llvm-svn: 30596
 2006-09-25 14:04:53 +00:00
Andrew Lenharth
55851a4bfd Fix jump tables to match gcc (and the ABI and whatnot) 
llvm-svn: 30594
 2006-09-24 19:46:56 +00:00
Andrew Lenharth
58f5a24f0c Add support for other relocation bases to jump tables, as well as custom asm directives 
llvm-svn: 30593
 2006-09-24 19:45:58 +00:00
Andrew Lenharth
c6ed3c74e7 basic jump table test 
llvm-svn: 30592
 2006-09-24 19:42:02 +00:00
Andrew Lenharth
f6b4462853 jump table note 
llvm-svn: 30591
 2006-09-24 13:13:10 +00:00
Evan Cheng
2086ffb27b PIC jump table entries are always 32-bit. This fixes PIC jump table support on X86-64. 
llvm-svn: 30590
 2006-09-24 05:22:38 +00:00
Nick Lewycky
d97d360598 Enable 'predsimplify' optimization. 
llvm-svn: 30589
 2006-09-24 00:08:16 +00:00
Nick Lewycky
800fff3067 Style changes only. Remove dead code, fix a comment. 
llvm-svn: 30588
 2006-09-23 15:13:08 +00:00
Chris Lattner
c0f674b9fd Be far more careful when splitting a loop header, either to form a preheader 
or when splitting loops with a common header into multiple loops.  In particular
the old code would always insert the preheader before the old loop header.  This
is disasterous in cases where the loop hasn't been rotated.  For example, it can
produce code like:

        .. outside the loop...
        jmp LBB1_2      #bb13.outer
LBB1_1: #bb1
        movsd 8(%esp,%esi,8), %xmm1
        mulsd (%edi), %xmm1
        addsd %xmm0, %xmm1
        addl $24, %edi
        incl %esi
        jmp LBB1_3      #bb13
LBB1_2: #bb13.outer
        leal (%edx,%eax,8), %edi
        pxor %xmm1, %xmm1
        xorl %esi, %esi
LBB1_3: #bb13
        movapd %xmm1, %xmm0
        cmpl $4, %esi
        jl LBB1_1       #bb1

Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2).  Doh.

This patch changes the preheader insertion code to insert it in the right
spot, producing this code:

        ... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
        leal (%edx,%eax,8), %esi
        pxor %xmm0, %xmm0
        xorl %edi, %edi
        jmp LBB1_3      #bb13
LBB1_2: #bb1
        movsd 8(%esp,%edi,8), %xmm0
        mulsd (%esi), %xmm0
        addsd %xmm1, %xmm0
        addl $24, %esi
        incl %edi
LBB1_3: #bb13
        movapd %xmm0, %xmm1
        cmpl $4, %edi
        jl LBB1_2       #bb1

Totally crazy, no branch in the loop! :)

llvm-svn: 30587
 2006-09-23 08:19:21 +00:00
Chris Lattner
56c1c10ca1 Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not 
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.

llvm-svn: 30586
 2006-09-23 07:40:52 +00:00
Chris Lattner
941d6d205a remove misleading comment 
llvm-svn: 30585
 2006-09-23 06:09:45 +00:00
Chris Lattner
bf0b610dfa add method, correct comment 
llvm-svn: 30584
 2006-09-23 04:03:45 +00:00
Evan Cheng
02e193e2ff Delete dead code; fix 80 col violations. 
llvm-svn: 30583
 2006-09-22 21:43:59 +00:00
Rafael Espindola
9cfd72a3d1 add a note 
llvm-svn: 30581
 2006-09-22 11:36:17 +00:00
Bill Wendling
a609cf48a3 Use "%llvmgxx" instead of "llvm-g++". 
llvm-svn: 30580
 2006-09-22 07:09:01 +00:00
Nate Begeman
29f99e606d Testcase for better rotate left and mask support 
llvm-svn: 30579
 2006-09-22 05:49:57 +00:00
Bill Wendling
e1c45087bd Regression testcase for PR855. 
llvm-svn: 30578
 2006-09-22 05:34:25 +00:00
Nate Begeman
7bcce1a7f6 Fold AND and ROTL more often 
llvm-svn: 30577
 2006-09-22 05:01:56 +00:00
Devang Patel
b34118f8bd remove extra white spaces. 
llvm-svn: 30576
 2006-09-22 01:07:57 +00:00
Devang Patel
8248ba3afc Use iterative algorith to assign DFS number. This reduces 
call stack depth.

llvm-svn: 30575
 2006-09-22 01:05:33 +00:00
Chris Lattner
86f1992481 don't allow 'imm' or specific imms, like '1' on the LHS of a binop. 
This shrinks X86GenDAGISel by ~330 lines.

llvm-svn: 30574
 2006-09-21 20:46:13 +00:00
Evan Cheng
ce6a660148 Make it work for DAG combine of multi-value nodes. 
llvm-svn: 30573
 2006-09-21 19:04:05 +00:00
Chris Lattner
28d7124afb Fit to 80 columns. 
llvm-svn: 30572
 2006-09-21 18:28:27 +00:00
Jim Laskey
231343018b core corrections 
llvm-svn: 30570
 2006-09-21 17:35:47 +00:00
Devang Patel
5bc8dcf913 Use abstract class to facilitate dlopen() interface. 
llvm-svn: 30569
 2006-09-21 17:22:55 +00:00
Jim Laskey
50750cf500 Basic "in frame" alias analysis. 
llvm-svn: 30568
 2006-09-21 16:28:59 +00:00