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26796 Commits

Author SHA1 Message Date
Chris Lattner c7d3195254 remove reference to dead method 
llvm-svn: 30641
 2006-09-28 00:38:19 +00:00
Chris Lattner b044ab2b82 remove dead method 
llvm-svn: 30640
 2006-09-28 00:37:43 +00:00
Chris Lattner 69edc98b74 Use the new ManagedStatic class to explicitly manage static variables, eliminating static ctors/dtors 
llvm-svn: 30639
 2006-09-28 00:35:06 +00:00
Chris Lattner 9daff49ebb new helper class to provide more explicit management of static ctor/dtors. 
llvm-svn: 30638
 2006-09-28 00:31:55 +00:00
Chris Lattner 764caf6129 re-re-revert this, back to the right revision. It currently breaks bisort/mst 
in olden among others.

llvm-svn: 30637
 2006-09-28 00:11:54 +00:00
Evan Cheng d31f55c236 PEI now place callee save spills closest to the address pointed to by the 
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.

llvm-svn: 30636
 2006-09-28 00:10:27 +00:00
Evan Cheng 17a8d08dba - Added a hook processFunctionBeforeCalleeSaveScn(). This is called by PEI just 
before it determines which callee-save registers are to be spilled. This allows
the target to make changes such as forcing certain physical registers to be
spilled.
- Modified comments. It's important to note the order of registers in the array
returns by getCalleeSaveRegs() determines the order of callee save spill code.

llvm-svn: 30635
 2006-09-28 00:07:19 +00:00
Chris Lattner 9f7d0d1dc5 re-revert this patch, bisort and mst are still broken in Olden. 
llvm-svn: 30634
 2006-09-28 00:04:21 +00:00
Bill Wendling 1f29e6c5c5 Reapplying this patch. With the newest commits, the error in Olden/bisort 
has disappeared.

llvm-svn: 30633
 2006-09-27 22:37:35 +00:00
Chris Lattner fc36039f86 silence warnings in release build 
llvm-svn: 30631
 2006-09-27 18:29:38 +00:00
Devang Patel 0a79537341 Fix DFS walk. 
Fix http://llvm.org/bugs/show_bug.cgi?id=923

llvm-svn: 30630
 2006-09-27 17:18:05 +00:00
Chris Lattner 5f6c93701b Temporarily revert this. This breaks Olden/bisort on PPC 
llvm-svn: 30628
 2006-09-27 16:59:16 +00:00
Jim Laskey 3bbf884855 Make sure C++ protection shows up in debug info 
llvm-svn: 30626
 2006-09-27 16:55:19 +00:00
Chris Lattner 5d751b4a3a This: 
AggregateString += "\0\0";

Doesn't add two nuls to the AggregateString (for obvious reasons), which
broke the asmprinter when the first character of an asm string was not
literal text.

llvm-svn: 30625
 2006-09-27 16:44:09 +00:00
Bill Wendling 0a7f617a6c PR878: Instead of calculating the vreg to PHI use count everytime we get 
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...

llvm-svn: 30624
 2006-09-27 09:04:15 +00:00
Chris Lattner e03ca2ca4a set DEBUG_TYPE right 
llvm-svn: 30623
 2006-09-27 04:58:23 +00:00
Devang Patel ce73ac3089 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 67f8cc51f4 Use abstract private/comment directives, to increase portability to ppc/linux 
llvm-svn: 30621
 2006-09-27 02:55:21 +00:00
Chris Lattner 30b4708df2 Add support for ${:private} which prints "L" on darwin. 
llvm-svn: 30620
 2006-09-27 00:06:07 +00:00
Chris Lattner a32814b033 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 8d21485660 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 5fd0154523 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 5405c06737 Rename function. It's determining which callee-save registers to save. 
llvm-svn: 30616
 2006-09-26 22:29:31 +00:00
Andrew Lenharth c19ef92403 Comments on JumpTableness 
llvm-svn: 30615
 2006-09-26 20:02:30 +00:00
Jim Laskey 60832693a7 Load chain check is not needed 
llvm-svn: 30613
 2006-09-26 17:44:58 +00:00
Jim Laskey dde51671e5 Chain can be any operand 
llvm-svn: 30611
 2006-09-26 09:32:41 +00:00
Jim Laskey 5f3e0af9d0 Wrong size for load 
llvm-svn: 30610
 2006-09-26 08:14:06 +00:00
Jim Laskey b4a864d533 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 104aa5dbc1 Various random and minor code cleanups. 
llvm-svn: 30608
 2006-09-26 03:57:53 +00:00
Chris Lattner ae7ff8b0c6 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 9a1e91b107 print the preds of each MBB 
llvm-svn: 30606
 2006-09-26 03:41:59 +00:00
Chris Lattner ad4e7eb59e 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 66af390631 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 991d3997cf 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 7aa0638aa9 Accidental enable of bad code 
llvm-svn: 30601
 2006-09-25 21:11:32 +00:00
Jim Laskey b5534e5c28 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 437d9a3fb2 Regression test for PR#922. 
llvm-svn: 30599
 2006-09-25 19:12:01 +00:00
Chris Lattner f11327daab more notes 
llvm-svn: 30598
 2006-09-25 17:12:14 +00:00
Jim Laskey d07be232ba Core antialiasing for load and store. 
llvm-svn: 30597
 2006-09-25 16:29:54 +00:00
Andrew Lenharth 6d8e227ac7 Fix 
llvm-svn: 30596
 2006-09-25 14:04:53 +00:00
Andrew Lenharth 5e2bacd6be Fix jump tables to match gcc (and the ABI and whatnot) 
llvm-svn: 30594
 2006-09-24 19:46:56 +00:00
Andrew Lenharth 783a4a9d86 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 3cec4952ab basic jump table test 
llvm-svn: 30592
 2006-09-24 19:42:02 +00:00
Andrew Lenharth 68324f8f85 jump table note 
llvm-svn: 30591
 2006-09-24 13:13:10 +00:00
Evan Cheng 77c0757f8b 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 25587182f3 Enable 'predsimplify' optimization. 
llvm-svn: 30589
 2006-09-24 00:08:16 +00:00
Nick Lewycky 059c79264f Style changes only. Remove dead code, fix a comment. 
llvm-svn: 30588
 2006-09-23 15:13:08 +00:00
Chris Lattner 6bd6da4097 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 608cd05e3f 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 e4583e8c2c remove misleading comment 
llvm-svn: 30585
 2006-09-23 06:09:45 +00:00
Chris Lattner 4091f4690a add method, correct comment 
llvm-svn: 30584
 2006-09-23 04:03:45 +00:00
Evan Cheng 1da0ab2f58 Delete dead code; fix 80 col violations. 
llvm-svn: 30583
 2006-09-22 21:43:59 +00:00
Rafael Espindola 72d4c070c0 add a note 
llvm-svn: 30581
 2006-09-22 11:36:17 +00:00
Bill Wendling fc0e612b65 Use "%llvmgxx" instead of "llvm-g++". 
llvm-svn: 30580
 2006-09-22 07:09:01 +00:00
Nate Begeman 9007f5a48d Testcase for better rotate left and mask support 
llvm-svn: 30579
 2006-09-22 05:49:57 +00:00
Bill Wendling fe95123f58 Regression testcase for PR855. 
llvm-svn: 30578
 2006-09-22 05:34:25 +00:00
Nate Begeman d31efd190f Fold AND and ROTL more often 
llvm-svn: 30577
 2006-09-22 05:01:56 +00:00
Devang Patel 81c9e42bea remove extra white spaces. 
llvm-svn: 30576
 2006-09-22 01:07:57 +00:00
Devang Patel 0c4e730c9c 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 7d3fd4f888 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 449a0c7e33 Make it work for DAG combine of multi-value nodes. 
llvm-svn: 30573
 2006-09-21 19:04:05 +00:00
Chris Lattner 99ae714459 Fit to 80 columns. 
llvm-svn: 30572
 2006-09-21 18:28:27 +00:00
Jim Laskey 35f7eebb49 core corrections 
llvm-svn: 30570
 2006-09-21 17:35:47 +00:00
Devang Patel 5af1651f7d Use abstract class to facilitate dlopen() interface. 
llvm-svn: 30569
 2006-09-21 17:22:55 +00:00
Jim Laskey 5d19d59017 Basic "in frame" alias analysis. 
llvm-svn: 30568
 2006-09-21 16:28:59 +00:00
Rafael Espindola 7b700e517a more condition codes 
llvm-svn: 30567
 2006-09-21 13:06:26 +00:00
Rafael Espindola 0c71a5adc8 if a constant can't be an immediate, add it to the constant pool 
llvm-svn: 30566
 2006-09-21 11:29:52 +00:00
Chris Lattner 082db3f9aa fold (aext (and (trunc x), cst)) -> (and x, cst). 
llvm-svn: 30561
 2006-09-21 06:40:43 +00:00
Chris Lattner fa9f92cf65 Check the right value type. This fixes 186.crafty on x86 
llvm-svn: 30560
 2006-09-21 06:17:39 +00:00
Chris Lattner 08a8ccaaf1 implemented 
llvm-svn: 30559
 2006-09-21 06:14:54 +00:00
Chris Lattner 8d8a3bf9c9 Compile: 
int %test(ulong *%tmp) {
        %tmp = load ulong* %tmp         ; <ulong> [#uses=1]
        %tmp.mask = shr ulong %tmp, ubyte 50            ; <ulong> [#uses=1]
        %tmp.mask = cast ulong %tmp.mask to ubyte
        %tmp2 = and ubyte %tmp.mask, 3          ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp2 to int         ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        andl $3, %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        # TRUNCATE movb %al, %al
        andb $3, %al
        movzbl %al, %eax
        ret

llvm-svn: 30558
 2006-09-21 06:14:31 +00:00
Chris Lattner a31f0a622b Generalize (zext (truncate x)) and (sext (truncate x)) folding to work when 
the src/dst are not the same size.  This catches things like "truncate
32-bit X to 8 bits, then zext to 16", which happens a bit on X86.

llvm-svn: 30557
 2006-09-21 06:00:20 +00:00
Chris Lattner 1c18c0db79 Fit in 80-cols 
llvm-svn: 30556
 2006-09-21 05:46:00 +00:00
Chris Lattner 51c95cdd82 Fix Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll 
llvm-svn: 30555
 2006-09-21 05:12:20 +00:00
Chris Lattner 6597e053e1 new testcase 
llvm-svn: 30554
 2006-09-21 05:11:01 +00:00
Nick Lewycky c68bbef874 Fix compile error. 
llvm-svn: 30553
 2006-09-21 02:08:31 +00:00
Nick Lewycky fde9c308b2 Don't rewrite ConstantExpr::get. 
llvm-svn: 30552
 2006-09-21 01:05:35 +00:00
Nick Lewycky d74c55f483 Once we're down to "setcc type constant1, constant2", at least come up 
with the right answer.

llvm-svn: 30550
 2006-09-20 23:02:24 +00:00
Anton Korobeynikov 3c5b3df6a0 Adding codegeneration for StdCall & FastCall calling conventions 
llvm-svn: 30549
 2006-09-20 22:03:51 +00:00
Andrew Lenharth ccdaecc448 Account for pseudo-ops correctly 
llvm-svn: 30548
 2006-09-20 20:08:52 +00:00
Chris Lattner a81a75c390 The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass 
should create the right asmprinter subclass.

llvm-svn: 30542
 2006-09-20 17:12:19 +00:00
Chris Lattner 8597a2fc4e Wrap some darwin'isms with isDarwin checks. 
llvm-svn: 30541
 2006-09-20 17:07:15 +00:00
Nick Lewycky cfff1c3f86 Use a total ordering to compare instructions. 
Fixes infinite loop in resolve().

llvm-svn: 30540
 2006-09-20 17:04:01 +00:00
Andrew Lenharth 44cb67af5c simplify 
llvm-svn: 30535
 2006-09-20 15:37:57 +00:00
Andrew Lenharth f007f21c8a catch constants more often 
llvm-svn: 30534
 2006-09-20 15:05:49 +00:00
Andrew Lenharth b04e899bb4 catch another constant 
llvm-svn: 30533
 2006-09-20 15:04:55 +00:00
Andrew Lenharth 97a4e99aff clarify with test case 
llvm-svn: 30531
 2006-09-20 14:48:00 +00:00
Andrew Lenharth e2d138a462 Add Note 
llvm-svn: 30530
 2006-09-20 14:40:01 +00:00
Jim Laskey fbeab72759 Trim the home directory from the dejagnu test 
llvm-svn: 30519
 2006-09-20 09:20:22 +00:00
Chris Lattner fba9e8f422 item done 
llvm-svn: 30518
 2006-09-20 06:41:56 +00:00
Chris Lattner c8cd62d381 Compile: 
int test3(int a, int b) { return (a < 0) ? a : 0; }

to:

_test3:
        srawi r2, r3, 31
        and r3, r2, r3
        blr

instead of:

_test3:
        cmpwi cr0, r3, 1
        li r2, 0
        blt cr0, LBB2_2 ;entry
LBB2_1: ;entry
        mr r3, r2
LBB2_2: ;entry
        blr


This implements: PowerPC/select_lt0.ll:seli32_a_a

llvm-svn: 30517
 2006-09-20 06:41:35 +00:00
Chris Lattner 2b09e1d2fc new testcase 
llvm-svn: 30516
 2006-09-20 06:40:37 +00:00
Chris Lattner 27d8985a71 add a note 
llvm-svn: 30515
 2006-09-20 06:32:10 +00:00
Chris Lattner 8746e2cd57 Fold the full generality of (any_extend (truncate x)) 
llvm-svn: 30514
 2006-09-20 06:29:17 +00:00
Chris Lattner 8b68decb27 Two things: 
1. teach SimplifySetCC that '(srl (ctlz x), 5) == 0' is really x != 0.
2. Teach visitSELECT_CC to use SimplifySetCC instead of calling it and
   ignoring the result.  This allows us to compile:

bool %test(ulong %x) {
  %tmp = setlt ulong %x, 4294967296
  ret bool %tmp
}

to:

_test:
        cntlzw r2, r3
        cmplwi cr0, r3, 1
        srwi r2, r2, 5
        li r3, 0
        beq cr0, LBB1_2 ;
LBB1_1: ;
        mr r3, r2
LBB1_2: ;
        blr

instead of:

_test:
        addi r2, r3, -1
        cntlzw r2, r2
        cntlzw r3, r3
        srwi r2, r2, 5
        cmplwi cr0, r2, 0
        srwi r2, r3, 5
        li r3, 0
        bne cr0, LBB1_2 ;
LBB1_1: ;
        mr r3, r2
LBB1_2: ;
        blr

This isn't wonderful, but it's an improvement.

llvm-svn: 30513
 2006-09-20 06:19:26 +00:00
Chris Lattner f62f090ea1 This is already done 
llvm-svn: 30512
 2006-09-20 04:59:33 +00:00
Chris Lattner 380c7e9a59 We went through all that trouble to compute whether it was safe to transform 
this comparison, but never checked it.  Whoops, no wonder we miscompiled
177.mesa!

llvm-svn: 30511
 2006-09-20 04:44:59 +00:00
Chris Lattner da9b1a9322 Improve PPC64 equality comparisons like PPC32 comparisons. 
llvm-svn: 30510
 2006-09-20 04:33:27 +00:00
Chris Lattner aa3926b7ea Two improvements: 
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next

llvm-svn: 30509
 2006-09-20 04:25:47 +00:00
Chris Lattner ab33d350a7 Add a note that we should match rlwnm better 
llvm-svn: 30508
 2006-09-20 03:59:25 +00:00
Chris Lattner 601b86513d Legalize is no longer limited to cleverness with just constant shift amounts. 
Allow it to be clever when possible and fall back to the gross code when needed.

This allows us to compile:

long long foo1(long long X, int C) {
  return X << (C|32);
}
long long foo2(long long X, int C) {
  return X << (C&~32);
}

to:
_foo1:
        rlwinm r2, r5, 0, 27, 31
        slw r3, r4, r2
        li r4, 0
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        slw r3, r3, r2
        srw r5, r4, r5
        or r3, r3, r5
        slw r4, r4, r2
        blr

instead of:

_foo1:
        ori r2, r5, 32
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr

llvm-svn: 30507
 2006-09-20 03:47:40 +00:00
Chris Lattner 875ea0cdbd Expand 64-bit shifts more optimally if we know that the high bit of the 
shift amount is one or zero.  For example, for:

long long foo1(long long X, int C) {
  return X << (C|32);
}

long long foo2(long long X, int C) {
  return X << (C&~32);
}

we get:

_foo1:
        movb $31, %cl
        movl 4(%esp), %edx
        andb 12(%esp), %cl
        shll %cl, %edx
        xorl %eax, %eax
        ret
_foo2:
        movb $223, %cl
        movl 4(%esp), %eax
        movl 8(%esp), %edx
        andb 12(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        ret

instead of:

_foo1:
        subl $4, %esp
        movl %ebx, (%esp)
        movb $32, %bl
        movl 8(%esp), %eax
        movl 12(%esp), %edx
        movb %bl, %cl
        orb 16(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        xorl %ecx, %ecx
        testb %bl, %bl
        cmovne %eax, %edx
        cmovne %ecx, %eax
        movl (%esp), %ebx
        addl $4, %esp
        ret
_foo2:
        subl $4, %esp
        movl %ebx, (%esp)
        movb $223, %cl
        movl 8(%esp), %eax
        movl 12(%esp), %edx
        andb 16(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        xorl %ecx, %ecx
        xorb %bl, %bl
        testb %bl, %bl
        cmovne %eax, %edx
        cmovne %ecx, %eax
        movl (%esp), %ebx
        addl $4, %esp
        ret

llvm-svn: 30506
 2006-09-20 03:38:48 +00:00
Evan Cheng cd3f6ff0e5 Back out Chris' last set of changes. This breaks 177.mesa and povray somehow. 
llvm-svn: 30505
 2006-09-20 01:39:40 +00:00
Evan Cheng 453280b94d 80 col. 
llvm-svn: 30504
 2006-09-20 01:10:02 +00:00
Evan Cheng 9de003670f Allow PatFrag to be a leaf node. 
llvm-svn: 30498
 2006-09-19 19:08:04 +00:00
Evan Cheng 00b2848adb Add result of a Xform to isel queue. 
llvm-svn: 30497
 2006-09-19 18:40:15 +00:00
Andrew Lenharth 4f339bebb0 If we have an add, do it in the pointer realm, not the int realm. This is critical in the linux kernel for pointer analysis correctness 
llvm-svn: 30496
 2006-09-19 18:24:51 +00:00
Andrew Lenharth 731f2d52a3 Inspired by the linux kernel, the more we keep adds in the pointer realm, the better pointer analysis works. 
llvm-svn: 30495
 2006-09-19 18:23:39 +00:00
Chris Lattner 698000b0da Fix UnitTests/2005-05-12-Int64ToFP.c with llc-beta. In particular, do not 
allow it to go into an infinite loop, filling up the disk!

llvm-svn: 30494
 2006-09-19 18:02:01 +00:00
Rafael Espindola fa7217f970 fix header 
add comments
untabify

llvm-svn: 30486
 2006-09-19 16:41:40 +00:00
Rafael Espindola f7d4a9900c Implement a MachineFunctionPass to fix the mul instruction 
llvm-svn: 30485
 2006-09-19 15:49:25 +00:00
Chris Lattner dc892c6221 number test right 
llvm-svn: 30484
 2006-09-19 06:19:19 +00:00
Chris Lattner b94df039c0 item done 
llvm-svn: 30483
 2006-09-19 06:19:03 +00:00
Chris Lattner 12f52faf93 implement select.ll:test19-22 
llvm-svn: 30482
 2006-09-19 06:18:21 +00:00
Chris Lattner aa0ad47e97 make this harder 
llvm-svn: 30481
 2006-09-19 06:17:55 +00:00
Chris Lattner db4fbdd1a6 new testcases 
llvm-svn: 30480
 2006-09-19 06:16:46 +00:00
Chris Lattner 3c48ea54ee Fold the PPCISD shifts when presented with 0 inputs. This occurs for code 
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479
 2006-09-19 05:22:59 +00:00
Chris Lattner 5a42ebcff3 Fold extract_element(cst) to cst 
llvm-svn: 30478
 2006-09-19 05:02:39 +00:00
Chris Lattner 4c059f4962 Minor speedup for legalize by avoiding some malloc traffic 
llvm-svn: 30477
 2006-09-19 04:51:23 +00:00
Chris Lattner bea5f91946 If multiple predicates are listed, they must all pass 
llvm-svn: 30476
 2006-09-19 00:41:36 +00:00
Nick Lewycky 5cc1e9b51d Enable dejagnu tests for predicate simplifier. 
llvm-svn: 30475
 2006-09-19 00:31:54 +00:00
Evan Cheng 1fc7c363e6 Fix a typo. 
llvm-svn: 30474
 2006-09-18 23:28:33 +00:00
Chris Lattner bba17b9913 There! 
llvm-svn: 30473
 2006-09-18 22:41:07 +00:00
Chris Lattner 82a73a1989 Fix Regression/TableGen/2006-09-18-LargeInt.td 
llvm-svn: 30472
 2006-09-18 22:28:27 +00:00
Chris Lattner 165f344721 new testcase 
llvm-svn: 30471
 2006-09-18 22:28:07 +00:00
Evan Cheng 4bfaf0bd2c Allow i32 UDIV, SDIV, UREM, SREM to be expanded into libcalls. 
llvm-svn: 30470
 2006-09-18 21:49:04 +00:00
Nick Lewycky b9c5483a93 Walk down the dominator tree instead of the control flow graph. That means 
that we can't modify the CFG any more, at least not until it's possible
to update the dominator tree (PR217).

llvm-svn: 30469
 2006-09-18 21:09:35 +00:00
Nick Lewycky 86bda361b0 Fix findCaseDest to return null when BB is both the default dest and one 
of the numeric cases.

llvm-svn: 30468
 2006-09-18 20:44:37 +00:00
Andrew Lenharth f23e3bfcb2 A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so 
llvm-svn: 30467
 2006-09-18 19:44:29 +00:00
Nick Lewycky 51cb632a1b Add a new helper method to SwitchInst. Useful when you've got a BB from 
somewhere (like the dominator graph) and would like to know which case it
came from.

llvm-svn: 30466
 2006-09-18 19:03:59 +00:00
Chris Lattner de07792595 Fix an infinite loop building the CFE 
llvm-svn: 30465
 2006-09-18 18:27:05 +00:00
Chris Lattner 3425123ced new testcase 
llvm-svn: 30464
 2006-09-18 18:07:51 +00:00
Andrew Lenharth 3aa3ad780e Jump tables on Alpha 
llvm-svn: 30463
 2006-09-18 18:01:03 +00:00
Andrew Lenharth 51ad73c98c oops 
llvm-svn: 30462
 2006-09-18 18:00:18 +00:00
Andrew Lenharth c50458fb90 absolute addresses must match pointer size 
llvm-svn: 30461
 2006-09-18 17:59:35 +00:00
Jim Laskey d30bba331f Sort out mangled names for globals 
llvm-svn: 30460
 2006-09-18 14:47:26 +00:00
Chris Lattner 67a35bbce7 Implement a trivial optzn: of vastart is never called in a function that takes 
... args, remove the '...'.

This is Transforms/DeadArgElim/dead_vaargs.ll

llvm-svn: 30459
 2006-09-18 07:02:31 +00:00
Chris Lattner 5c1bfd0311 new testcase 
llvm-svn: 30458
 2006-09-18 07:01:39 +00:00
Chris Lattner 523dbc5c19 add a note. Our 64-bit shifts are ~30% slower than gcc's 
llvm-svn: 30457
 2006-09-18 05:36:54 +00:00
Chris Lattner 4922a0e53f Implement InstCombine/cast.ll:test31. This speeds up 462.libquantum by 26%. 
llvm-svn: 30456
 2006-09-18 05:27:43 +00:00
Chris Lattner 52d170fc94 new testcase 
llvm-svn: 30455
 2006-09-18 05:25:10 +00:00
Chris Lattner 04fb628ea6 Add support for pattern matching cast operations 
llvm-svn: 30454
 2006-09-18 05:17:11 +00:00
Chris Lattner 8f499f1772 fix typo 
llvm-svn: 30453
 2006-09-18 04:58:06 +00:00
Chris Lattner b0b8ddd175 add a helper method 
llvm-svn: 30452
 2006-09-18 04:54:57 +00:00
Chris Lattner 4a13d3b391 This is closer to what we really want. 
llvm-svn: 30451
 2006-09-18 04:54:35 +00:00
Chris Lattner 420c4bcc8d Implement Transforms/InstCombine/shift-sra.ll:test0 
llvm-svn: 30450
 2006-09-18 04:31:40 +00:00
Chris Lattner 00a07af638 New testcase, can be an srl instead of sra 
llvm-svn: 30449
 2006-09-18 04:31:18 +00:00
Chris Lattner b3f24c91b0 Rewrite shift/and/compare sequences to promote better licm of the RHS. 
Use isLogicalShift/isArithmeticShift to simplify code.

llvm-svn: 30448
 2006-09-18 04:22:48 +00:00
Reid Spencer 99dedf4a44 Make the LLVM Publications link point to /pubs/ since this has moved to 
its own page on the LLVM web site.

llvm-svn: 30447
 2006-09-17 23:05:15 +00:00
Anton Korobeynikov 6f7072c66a Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
 2006-09-17 20:25:45 +00:00
Chris Lattner f16dc007e6 Add ShiftInst::isLogical/ArithmeticShift methods. 
llvm-svn: 30445
 2006-09-17 19:29:56 +00:00
Chris Lattner e1496fbb33 Add new SetCondInst::isRelational/isEquality methods. Rename 
Instruction::isRelational to Instruction::isComparison.

llvm-svn: 30444
 2006-09-17 19:14:47 +00:00
Nick Lewycky 241211939d Explain change with a comment. 
llvm-svn: 30443
 2006-09-17 17:51:00 +00:00
Nick Lewycky c7b465366a Fix PR912. The input to erase() must not be a reference to the data 
being erased.

llvm-svn: 30442
 2006-09-17 16:23:36 +00:00
Anton Korobeynikov 0ab01ff6e2 Small fixes for supporting dll* linkage types 
llvm-svn: 30441
 2006-09-17 13:06:18 +00:00
Chris Lattner f7e3478745 add a note noticed through source inspection 
llvm-svn: 30418
 2006-09-16 23:57:51 +00:00
Chris Lattner e50f5d1fb1 Oh yeah, this is needed too 
llvm-svn: 30407
 2006-09-16 05:08:34 +00:00
Chris Lattner 63b113f68c add a note 
llvm-svn: 30406
 2006-09-16 03:30:19 +00:00
Chris Lattner 850465d53f Fix Transforms/InstCombine/2006-09-15-CastToBool.ll and PR913 
llvm-svn: 30405
 2006-09-16 03:14:10 +00:00
Chris Lattner 5772ba4f50 Testcase for PR913 
llvm-svn: 30404
 2006-09-16 03:13:22 +00:00
Chris Lattner 1b63391fdf simplify control flow, no functionality change 
llvm-svn: 30403
 2006-09-16 00:21:44 +00:00
Chris Lattner fbadbda6ba Allow custom expand of mul 
llvm-svn: 30402
 2006-09-16 00:09:24 +00:00
Chris Lattner ff8a6b86db comment out debug code 
llvm-svn: 30401
 2006-09-15 23:01:10 +00:00
Chris Lattner 634bc046ca Add a new -cbe-bug mode, which works just like -run-llc, except that it uses 
LLC as the reference compiler to reduce testcases for bugs in GCC.

llvm-svn: 30400
 2006-09-15 21:29:15 +00:00
Chris Lattner c9dc375d3e add a nate note 
llvm-svn: 30399
 2006-09-15 20:31:36 +00:00
Chris Lattner 1bcb3d16cc xfail this for now 
llvm-svn: 30398
 2006-09-15 17:25:22 +00:00
Chris Lattner 9482cc5b16 revert previous two patches. They cause miscompilation of MultiSource/Applications/Burg 
llvm-svn: 30397
 2006-09-15 17:24:45 +00:00
Jim Laskey ee7929db34 Switching to NewNightlyTest.php 
llvm-svn: 30394
 2006-09-15 17:03:36 +00:00
Chris Lattner 84890d2da1 The inliner strips dead allocas now. Add a use to allow this test to 
test the right thing.

llvm-svn: 30393
 2006-09-15 16:53:11 +00:00
Owen Anderson edadd3faee Revert my previous work on ArgumentPromotion. Further investigation has revealed these 
changes to be incorrect.  They just weren't showing up in any of our current testcases.

llvm-svn: 30385
 2006-09-15 05:22:51 +00:00
Chris Lattner 8d2b9a431b Unbreak the JIT 
llvm-svn: 30384
 2006-09-15 04:56:11 +00:00
Chris Lattner 8fb3d445f5 Keep track of the start of MBB's in a separate map from instructions. This 
is faster and is needed for future improvements.

llvm-svn: 30383
 2006-09-15 03:57:23 +00:00
Evan Cheng f8464da015 Remove a unnecessary check. 
llvm-svn: 30382
 2006-09-14 23:55:02 +00:00
Chris Lattner 3ffda067e3 Relax this check. 
llvm-svn: 30381
 2006-09-14 23:54:24 +00:00
Devang Patel 9ce9df5912 Undo previous check-in. 
Reintroduce recursive assignDFSNumber().

llvm-svn: 30380
 2006-09-14 21:43:24 +00:00
Chris Lattner 46d710e6ea Fold (X & C1) | (Y & C2) -> (X|Y) & C3 when possible. 
This implements CodeGen/X86/and-or-fold.ll

llvm-svn: 30379
 2006-09-14 21:11:37 +00:00
Chris Lattner 4c4e077546 New testcase 
llvm-svn: 30378
 2006-09-14 21:10:06 +00:00
Chris Lattner 2aa98e0363 add a note 
llvm-svn: 30377
 2006-09-14 20:56:30 +00:00
Chris Lattner 97614c86ce Split rotate matching code out to its own function. Make it stronger, by 
matching things like ((x >> c1) & c2) | ((x << c3) & c4) to (rot x, c5) & c6

llvm-svn: 30376
 2006-09-14 20:50:57 +00:00
Anton Korobeynikov 73441cd099 Adding generated files for the last commit 
llvm-svn: 30375
 2006-09-14 18:25:26 +00:00
Anton Korobeynikov d61d39ec53 Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374
 2006-09-14 18:23:27 +00:00
Evan Cheng 616aa548b2 Use getOffset() instead. 
llvm-svn: 30327
 2006-09-14 07:41:12 +00:00
Evan Cheng 2ad050fb3e Use MachineConstantPoolEntry getOffset() and getType() accessors. 
llvm-svn: 30326
 2006-09-14 07:35:00 +00:00
Evan Cheng 0460f42da9 Add MachineConstantPoolEntry getOffset() accessor. 
llvm-svn: 30325
 2006-09-14 07:32:32 +00:00
Evan Cheng 316843372e The top bit is used to determine whether it's a MachineConstantPoolValue. 
llvm-svn: 30324
 2006-09-14 07:30:48 +00:00
Chris Lattner 3a68d40dd3 revert accidentally committed file 
llvm-svn: 30323
 2006-09-14 06:42:17 +00:00
Chris Lattner e1a6cec41b Remove dead methods, add getNumBlockIDs() method 
llvm-svn: 30322
 2006-09-14 06:40:48 +00:00
Chris Lattner a4f1e8f6b8 Use new config.h macro 
llvm-svn: 30321
 2006-09-14 06:21:59 +00:00
Reid Spencer d28c7c87d7 Add a HAVE_MACH_MACH_H #define to detect the presence of the mach/mach.h 
header file on Darwin.

llvm-svn: 30319
 2006-09-14 06:17:21 +00:00
Chris Lattner 3f0ffd31cf add a new (hidden) -disable-core-files option 
llvm-svn: 30318
 2006-09-14 06:17:09 +00:00
Chris Lattner 2f107cfc0d On Mac OS/X, make Process::PreventCoreFiles disable crash reporter for 
the process in addition to disabling core file emission.  This speeds up
bugpoint on default-configured macs by several orders of magnitude.

llvm-svn: 30317
 2006-09-14 06:01:41 +00:00
Evan Cheng 4f9299552b A MachineConstantPool may have mixed Constant* and MachineConstantPoolValue* values. 
llvm-svn: 30316
 2006-09-14 05:50:57 +00:00
Devang Patel dd53fd41cd Add comment. 
llvm-svn: 30315
 2006-09-14 05:49:10 +00:00
Evan Cheng affe88eeac Mirrors ConstantPoolSDNode. 
llvm-svn: 30314
 2006-09-14 05:48:39 +00:00
Nick Lewycky 426df57aec Document new --enable-valgrind option. 
llvm-svn: 30313
 2006-09-14 04:33:29 +00:00
Nick Lewycky a2c681ab41 Fix --enable-valgrind. Add room for the new arguments, and don't keep 
a pointer to a temporary.

llvm-svn: 30312
 2006-09-14 04:20:17 +00:00
Nick Lewycky 7faef23f02 Add --enable-valgrind option to run optimizations through valgrind to 
pick up on memory errors.

llvm-svn: 30311
 2006-09-14 03:49:54 +00:00
Devang Patel e480d2a2d7 GlobalValue with InternalLinkage may have operands with ExternalLinkage 
type. Do not ignore these operands while finding external references.

llvm-svn: 30310
 2006-09-14 01:35:13 +00:00
Devang Patel 23d855b40d Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h

llvm-svn: 30309
 2006-09-14 01:27:42 +00:00
Chris Lattner 1463377ddb add note about switch lowering 
llvm-svn: 30308
 2006-09-13 23:37:16 +00:00
Chris Lattner 237ccf2a51 Second half of the fix for Transforms/Inline/inline_cleanup.ll 
This folds unconditional branches that are often produced by code
specialization.

llvm-svn: 30307
 2006-09-13 21:27:00 +00:00
Nick Lewycky 12efffc96b Add some more consistency checks. 
llvm-svn: 30305
 2006-09-13 19:32:53 +00:00
Nick Lewycky 51ce8d6b46 Fix unionSets so that it can merge correctly. 
llvm-svn: 30304
 2006-09-13 19:24:01 +00:00
Chris Lattner 6ef6d06d21 Implement the first half of Transforms/Inline/inline_cleanup.ll 
llvm-svn: 30303
 2006-09-13 19:23:57 +00:00
Chris Lattner 73eedf0a05 new testcase 
llvm-svn: 30302
 2006-09-13 19:23:43 +00:00
Evan Cheng 92e5113d48 Skip over first operand when determining REX prefix for two-address code. 
llvm-svn: 30300
 2006-09-13 19:07:28 +00:00
Nick Lewycky 3a4dc7b489 Erase dead instructions. 
llvm-svn: 30298
 2006-09-13 18:55:37 +00:00
Chris Lattner 8ed3cd4e90 The sense of this branch was backwards 
llvm-svn: 30296
 2006-09-13 17:58:57 +00:00
Chris Lattner 971e33930d Turn X < 0 -> TEST X,X js 
llvm-svn: 30294
 2006-09-13 17:04:54 +00:00
Chris Lattner 0c9ae46c5f The sense of this branch was inverted :( 
llvm-svn: 30293
 2006-09-13 16:56:12 +00:00
Chris Lattner cd34779ef6 Fix a ton of jit failures 
llvm-svn: 30292
 2006-09-13 16:21:10 +00:00
Rafael Espindola 3130a756ef add shifts to addressing mode 1 
llvm-svn: 30291
 2006-09-13 12:09:43 +00:00
Chris Lattner 84cc1f7cb8 If LSR went through a lot of trouble to put constants (e.g. the addr of a global 
in a specific BB, don't undo this!).  This allows us to compile
CodeGen/X86/loop-hoist.ll into:

_foo:
        xorl %eax, %eax
***     movl L_Arr$non_lazy_ptr, %ecx
        movl 4(%esp), %edx
LBB1_1: #cond_true
        movl %eax, (%ecx,%eax,4)
        incl %eax
        cmpl %edx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

instead of:

_foo:
        xorl %eax, %eax
        movl 4(%esp), %ecx
LBB1_1: #cond_true
***     movl L_Arr$non_lazy_ptr, %edx
        movl %eax, (%edx,%eax,4)
        incl %eax
        cmpl %ecx, %eax
        jne LBB1_1      #cond_true
LBB1_2: #return
        ret

This was noticed in 464.h264ref.  This doesn't usually affect PPC,
but strikes X86 all the time.

llvm-svn: 30290
 2006-09-13 06:02:42 +00:00
Chris Lattner 256aeb321b new testcase 
llvm-svn: 30289
 2006-09-13 05:59:25 +00:00
Chris Lattner 706dd3e0d4 Fix a regression in the 32-bit port from the 64-bit port landing. 
We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret

llvm-svn: 30288
 2006-09-13 04:45:25 +00:00
Chris Lattner 7789e938b6 New testcase 
llvm-svn: 30287
 2006-09-13 04:43:26 +00:00
Chris Lattner e413fea6ac new note 
llvm-svn: 30286
 2006-09-13 04:19:50 +00:00
Chris Lattner 3496710f25 new note 
llvm-svn: 30285
 2006-09-13 03:54:54 +00:00
Chris Lattner 72b503bcad Compile X << 1 (where X is a long-long) to: 
addl %ecx, %ecx
        adcl %eax, %eax

instead of:

        movl %ecx, %edx
        addl %edx, %edx
        shrl $31, %ecx
        addl %eax, %eax
        orl %ecx, %eax

and to:

        addc r5, r5, r5
        adde r4, r4, r4

instead of:

        slwi r2,r9,1
        srwi r0,r11,31
        slwi r3,r11,1
        or r2,r0,r2

on PPC.

llvm-svn: 30284
 2006-09-13 03:50:39 +00:00
Chris Lattner 7a627676be Compile X > -1 -> text X,X; js dest 
This implements CodeGen/X86/jump_sign.ll.

llvm-svn: 30283
 2006-09-13 03:22:10 +00:00
Chris Lattner ecd9bfb303 new testcase 
llvm-svn: 30282
 2006-09-13 03:21:27 +00:00
Devang Patel fab4972a6e Initialize DontInternalize. 
llvm-svn: 30281
 2006-09-13 01:02:26 +00:00
Evan Cheng 9a083a4121 Reflects MachineConstantPoolEntry changes. 
llvm-svn: 30279
 2006-09-12 21:04:05 +00:00
Evan Cheng 45fe3bc72c Added support for machine specific constantpool values. These are useful for 
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278
 2006-09-12 21:00:35 +00:00
Evan Cheng 3228e750be Reflect MachineConstantPoolEntry changes. 
llvm-svn: 30277
 2006-09-12 20:59:59 +00:00
John Criswell 1d1835b4ed Correct the URL to the attrib.incl file. 
llvm-svn: 30276
 2006-09-12 20:30:13 +00:00
Chris Lattner 1d7ec20a4d An sinkable instruction may exist with uses, if those uses are in dead blocks. 
Handle this.  This fixes PR908 and Transforms/LICM/2006-09-12-DeadUserOfSunkInstr.ll

llvm-svn: 30275
 2006-09-12 19:17:09 +00:00
Chris Lattner 726bc70c43 testcase for PR908 
llvm-svn: 30274
 2006-09-12 19:16:04 +00:00
Chris Lattner 2655c59a7b Testcase that crashes the C++ FE. 
llvm-svn: 30273
 2006-09-12 16:28:14 +00:00
Chris Lattner cfb2c32724 add a note 
llvm-svn: 30271
 2006-09-12 06:36:01 +00:00
Nick Lewycky a3e70372c9 Add ability to remove nodes from DominatorTree, for when a BasicBlock 
is being removed.

llvm-svn: 30270
 2006-09-12 00:18:28 +00:00
Chris Lattner 8b4de218d9 Testcase noticed from PR906 
llvm-svn: 30269
 2006-09-11 23:00:56 +00:00
Chris Lattner 6e7286f72a add compilable testcase 
llvm-svn: 30268
 2006-09-11 22:57:51 +00:00
Chris Lattner 3592523342 new testcase for PR906 
llvm-svn: 30267
 2006-09-11 22:48:23 +00:00
Chris Lattner d28627009a Fix PR905 and InstCombine/2006-09-11-EmptyStructCrash.ll 
llvm-svn: 30266
 2006-09-11 21:43:16 +00:00
Chris Lattner 3faf86e4f4 new testcase for PR905 
llvm-svn: 30265
 2006-09-11 21:41:56 +00:00
Rafael Espindola c7829d62c0 implement SRL and MUL 
llvm-svn: 30262
 2006-09-11 19:24:19 +00:00
Rafael Espindola bccf9c2f1b add the correct fallback for ARMDAGToDAGISel::SelectAddrMode1 
llvm-svn: 30261
 2006-09-11 19:23:32 +00:00
Chris Lattner f37b4ee4c2 burg is gone 
llvm-svn: 30253
 2006-09-11 17:28:11 +00:00
Rafael Espindola e45a79a9e2 partial implementation of the ARM Addressing Mode 1 
llvm-svn: 30252
 2006-09-11 17:25:40 +00:00
Nick Lewycky e94f42a740 Skip the linear search if the answer is already known. 
llvm-svn: 30251
 2006-09-11 17:23:34 +00:00
Jim Laskey 5c3bdbad9b No longer used, and confuses maintainers 
llvm-svn: 30248
 2006-09-11 16:02:58 +00:00
John Criswell d894443780 Include the UIUC CS department attribution on the main doxygen page. 
llvm-svn: 30247
 2006-09-11 14:52:26 +00:00
Rafael Espindola ecb0d686f8 call AsmPrinter::doInitialization in ARMAsmPrinter::doInitialization 
llvm-svn: 30246
 2006-09-11 12:49:38 +00:00
Evan Cheng 21a75acc3e Updates. 
llvm-svn: 30245
 2006-09-11 05:35:17 +00:00
Evan Cheng 9e77d9a96b Update README file. 
llvm-svn: 30244
 2006-09-11 05:25:15 +00:00
Evan Cheng e9d1a2fcae Rename a test-not-cmp.ll to cmp-test.ll; add a test. 
llvm-svn: 30243
 2006-09-11 02:33:29 +00:00
Evan Cheng 1ec61ba00a 1) With X86 lowering change, the following can no longer happen since 
the branch's chain is also produced by cmp.
          [ch, r : ld]
             ^ ^
             | |
      [XX]--/   \- [flag : cmp]
       ^             ^
       |             |
       \---[br flag]-

Remove an isel check which prevents loads from being folded into cmp / test
instructions.

2) Whenever possible, delete a selected node to allow more load folding
opportunities. Note not all nodes can be deleted after it has been
selected. Some may have simply morphed; some have not changed at all (e.g.
EntryToken).

llvm-svn: 30242
 2006-09-11 02:24:43 +00:00
Evan Cheng 4259a0f654 X86ISD::CMP now produces a chain as well as a flag. Make that the chain 
operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241
 2006-09-11 02:19:56 +00:00
Nate Begeman a0d95a8da9 Behold, more work on relocations. Things are looking pretty good now. 
llvm-svn: 30240
 2006-09-10 23:03:44 +00:00