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Author SHA1 Message Date
Chris Lattner a3159af703 Fix a bug where we would not promote calls to invokes if they occured in 
the same block as the setjmp.  Thanks to Greg Pettyjohn for noticing this!

llvm-svn: 21403
 2005-04-21 16:46:46 +00:00
Reid Spencer ce7ce1628f Eliminate calls to system dependent function getuid by using 
the newly implemented sys::Process::GetCurrentUserId function. Replace
similarly for getgid.

llvm-svn: 21402
 2005-04-21 16:15:19 +00:00
Reid Spencer 2d45e25125 Provide an implementation of the GetCurrentUserId and GetCurrentGroupId 
methods that were recently added to the interface.

llvm-svn: 21401
 2005-04-21 16:12:57 +00:00
Reid Spencer 5e92ead30d Add two new methods for getting the User Id and Group Id values for the 
current process.

llvm-svn: 21400
 2005-04-21 16:12:04 +00:00
Chris Lattner c346bf59ee Add doxygen comments, patch contributed by Evan Jones. 
llvm-svn: 21397
 2005-04-21 16:10:03 +00:00
Chris Lattner 4c5c96f35f add support for taking and resolving the address of free. 
llvm-svn: 21396
 2005-04-21 16:09:43 +00:00
Chris Lattner 631ee94316 add support for taking the address of free. 
llvm-svn: 21395
 2005-04-21 16:08:59 +00:00
Chris Lattner 954c64d532 Improve doxygen, from part of Evan's patch that didn't apply. 
llvm-svn: 21394
 2005-04-21 16:06:03 +00:00
Chris Lattner 7ceb081f3f Improve doxygen documentation, patch contributed by Evan Jones! 
llvm-svn: 21393
 2005-04-21 16:04:49 +00:00
Chris Lattner f6302441f0 Improve and elimination. On PPC, for: 
bool %test(int %X) {
        %Y = and int %X, 8
        %Z = setne int %Y, 0
        ret bool %Z
}

we now generate this:

        rlwinm r2, r3, 0, 28, 28
        srwi r3, r2, 3

instead of this:

        rlwinm r2, r3, 0, 28, 28
        srwi r2, r2, 3
        rlwinm r3, r2, 0, 31, 31

I'll leave it to Nate to get it down to one instruction. :)

---------------------------------------------------------------------

llvm-svn: 21391
 2005-04-21 06:28:15 +00:00
Chris Lattner ab1ed77570 Fold (x & 8) != 0 and (x & 8) == 8 into (x & 8) >> 3. 
This turns this PPC code:

        rlwinm r2, r3, 0, 28, 28
        cmpwi cr7, r2, 8
        mfcr r2
        rlwinm r3, r2, 31, 31, 31

into this:

        rlwinm r2, r3, 0, 28, 28
        srwi r2, r2, 3
        rlwinm r3, r2, 0, 31, 31

Next up, nuking the extra and.

llvm-svn: 21390
 2005-04-21 06:12:41 +00:00
Chris Lattner 374e659466 Instcombine this: 
%shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4             ; <bool> [#uses=1]
        %tmp.6 = cast bool %shortcirc_val to int                ; <int> [#uses=1]

into this:

        %shortcirc_val = or bool %tmp.1, %tmp.4         ; <bool> [#uses=1]
        %tmp.6 = cast bool %shortcirc_val to int                ; <int> [#uses=1]

not this:

        %tmp.4.cast = cast bool %tmp.4 to int           ; <int> [#uses=1]
        %tmp.6 = select bool %tmp.1, int 1, int %tmp.4.cast             ; <int> [#uses=1]

llvm-svn: 21389
 2005-04-21 05:43:13 +00:00
Chris Lattner b38b443b15 Teach simplifycfg that setcc is cheap and non-trapping, so that it can 
convert this:

        %tmp.1 = seteq int %i, 0                ; <bool> [#uses=1]
        br bool %tmp.1, label %shortcirc_done, label %shortcirc_next

shortcirc_next:         ; preds = %entry
        %tmp.4 = seteq int %j, 0                ; <bool> [#uses=1]
        br label %shortcirc_done

shortcirc_done:         ; preds = %shortcirc_next, %entry
        %shortcirc_val = phi bool [ %tmp.4, %shortcirc_next ], [ true, %entry ]         ; <bool> [#uses=1]

to this:
        %tmp.1 = seteq int %i, 0                ; <bool> [#uses=1]
        %tmp.4 = seteq int %j, 0                ; <bool> [#uses=1]
        %shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4             ; <bool> [#uses=1]

... which is later simplified by instcombine into an or.

llvm-svn: 21388
 2005-04-21 05:31:13 +00:00
Chris Lattner b7848974cd Fix some broken links, taking care of PR554 
llvm-svn: 21387
 2005-04-21 04:53:58 +00:00
Chris Lattner 0727518f81 update to match build changes. 
llvm-svn: 21386
 2005-04-21 04:52:37 +00:00
Reid Spencer 8424ba373e For Bug 543: 
Standardize the error messages to be in "path: what failed: why" format.
Also attempt to use the correct errno to ThrowErrno in situations where
the errno value is erased by subsequent system calls.

llvm-svn: 21385
 2005-04-21 02:50:10 +00:00
Reid Spencer b02566dc1c For Bug 543: 
Allow the ThrowErrno function to optionally accept an error number
parameter so that callers can specify the error number to be used.

llvm-svn: 21384
 2005-04-21 02:30:32 +00:00
Misha Brukman 2f72bafb60 Remove trailing whitespace at the end of lines 
llvm-svn: 21380
 2005-04-20 16:42:34 +00:00
Misha Brukman ea548c0cb1 Remove trailing whitespace, patch by Markus Oberhumer. 
llvm-svn: 21379
 2005-04-20 16:05:03 +00:00
Misha Brukman 5e7bac21d5 Add FIXME by Markus Oberhumer from bug 545: not checking for "." in $PATH may 
result in returning executable files that won't be runnable.

llvm-svn: 21378
 2005-04-20 15:42:11 +00:00
Misha Brukman a9a8c1b65b Do not mark directories as `executable', we only want program files 
Patch by Markus Oberhumer.

llvm-svn: 21377
 2005-04-20 15:33:22 +00:00
Misha Brukman ee6770f1a3 #include system headers after all LLVM headers 
llvm-svn: 21374
 2005-04-20 04:51:29 +00:00
Misha Brukman 17092bd0a4 Eliminate trailing spaces at end-of-line 
llvm-svn: 21372
 2005-04-20 04:08:35 +00:00
Misha Brukman 3f4fe46796 Consistently eschew space between `*' or `&' and function argument name 
llvm-svn: 21371
 2005-04-20 04:07:47 +00:00
Misha Brukman 1001aea4d3 Ignore dangling symlinks in getDirectoryContents() 
Thanks to Markus Oberhumer for the patch!

llvm-svn: 21370
 2005-04-20 04:04:07 +00:00
Misha Brukman 8cd50bf269 Initialize fields mode, uid, and gid. 
Patch by Markus Oberhumer.  Thanks!

llvm-svn: 21369
 2005-04-20 03:55:35 +00:00
Misha Brukman bebcaeb816 Align comments together for consistency 
llvm-svn: 21368
 2005-04-20 03:52:59 +00:00
Misha Brukman 64a8c3ed91 * Print commands as we execute them with `-v' 
* Add option `-save-temps'
Patch contributed by Markus Oberhumer.

llvm-svn: 21367
 2005-04-20 03:22:18 +00:00
Chris Lattner 8cb10a1775 Wrap some long lines. 
Make IPSCCP strip off dead constant exprs that are using functions, making
them appear as though their address is taken.  This allows us to propagate
some more pool descriptors, lowering the overhead of pool alloc.

llvm-svn: 21363
 2005-04-19 19:16:19 +00:00
Chris Lattner 14db4a2895 ignore generated files 
llvm-svn: 21362
 2005-04-19 15:34:36 +00:00
Chris Lattner b17483028f fix bogus warning 
llvm-svn: 21361
 2005-04-19 15:32:30 +00:00
Chris Lattner 07ad98dbe2 fix PR549 
llvm-svn: 21360
 2005-04-19 15:27:29 +00:00
Chris Lattner 181c818373 Bug fixed 
llvm-svn: 21355
 2005-04-19 06:08:04 +00:00
Chris Lattner 5c219469a0 Eliminate a broken transformation, fixing PR548 
llvm-svn: 21354
 2005-04-19 06:04:18 +00:00
Chris Lattner 53c40624f9 Add completely untested support for mtcrf/mfcrf encoding 
llvm-svn: 21353
 2005-04-19 05:41:52 +00:00
Chris Lattner baa9be572b switch over the rest of the formats that use RC to use isDOT 
llvm-svn: 21352
 2005-04-19 05:21:30 +00:00
Chris Lattner f9172e14c9 Convert the XForm instrs and XSForm instruction over to use isDOT 
llvm-svn: 21351
 2005-04-19 05:15:18 +00:00
Chris Lattner 5b78da4571 Now that the ppc64 and vmx operands of I are always 0, forward substitute 
them away.

llvm-svn: 21350
 2005-04-19 05:05:22 +00:00
Chris Lattner 116a9e5a34 convert over bform and iform instructions 
llvm-svn: 21349
 2005-04-19 05:00:59 +00:00
Chris Lattner b2367e398e Convert over DForm and DSForm instructions 
llvm-svn: 21348
 2005-04-19 04:59:28 +00:00
Chris Lattner 15709c2c33 Convert XLForm and XForm instructions over to use PPC64 when appropriate. 
llvm-svn: 21347
 2005-04-19 04:51:30 +00:00
Chris Lattner d790d22f22 Convert XO XS and XFX forms to use isPPC64 
llvm-svn: 21346
 2005-04-19 04:40:07 +00:00
Chris Lattner c7cb8c77fb Turn PPC64 and VMX into classes that can be added to instructions instead of 
bits that must be passed up the inheritance hierarchy.  Convert MForm and AForm
instructions over

llvm-svn: 21345
 2005-04-19 04:32:54 +00:00
Chris Lattner ef94374a1c Major change to tblgen: instead of resolving values every time a class is 
finished up, only resolve fully when the def is defined.  This allows things
to be changed and all uses to be propagated through.  This implements
TableGen/LazyChange.td and fixes TemplateArgRename.td in the process.

None of the .td files used in LLVM backends are changed at all by this
patch.

llvm-svn: 21344
 2005-04-19 03:36:21 +00:00
Chris Lattner ab77740715 New testcase for a changing values late and allowing them to propagate 
llvm-svn: 21343
 2005-04-19 03:34:58 +00:00
Chris Lattner d90d566dee Make this significantly harder 
llvm-svn: 21342
 2005-04-19 02:58:57 +00:00
Chris Lattner 17bd7c5a88 Add a real run line 
llvm-svn: 21341
 2005-04-19 02:53:26 +00:00
Chris Lattner c00f712fc0 fix this testcase 
llvm-svn: 21340
 2005-04-19 02:52:04 +00:00
Chris Lattner 2b76da7d1f new testcase 
llvm-svn: 21339
 2005-04-19 02:26:23 +00:00
Chris Lattner f2fab50974 add a run line 
llvm-svn: 21338
 2005-04-19 01:37:24 +00:00
Chris Lattner ed8335e35b Tell dj to run the tests in this directory 
llvm-svn: 21337
 2005-04-19 01:36:41 +00:00
Chris Lattner 3ff0e11294 implementing shifting of literal integers 
llvm-svn: 21336
 2005-04-19 01:17:35 +00:00
Chris Lattner 101fc501d0 Add initial lexer and parser support for shifting values. Every use of this 
will lead to it being rejected though.

llvm-svn: 21335
 2005-04-19 01:11:03 +00:00
Nate Begeman 2331c061ee Next round of PPC CR optimizations. For the following code: 
int %bar(float %a, float %b, float %c, float %d) {
entry:
    %tmp.1 = setlt float %a, %d
    %tmp.2 = setlt float %b, %d
    %or = or bool %tmp.1, %tmp.2
    %tmp.3 = setgt float %c, %d
    %tmp.4 = or bool %or, %tmp.3
    %tmp.5 = and bool %tmp.4, true
    %retval = cast bool %tmp.5 to int
    ret int %retval
}

We now emit:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr0, f1, f4
        fcmpu cr1, f2, f4
        cror 0, 0, 4
        fcmpu cr1, f3, f4
        cror 28, 0, 5
        mfcr r2
        rlwinm r3, r2, 29, 31, 31
        blr

Instead of:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr7, f1, f4
        mfcr r2
        rlwinm r2, r2, 29, 31, 31
        fcmpu cr7, f2, f4
        mfcr r3
        rlwinm r3, r3, 29, 31, 31
        or r2, r2, r3
        fcmpu cr7, f3, f4
        mfcr r3
        rlwinm r3, r3, 30, 31, 31
        or r3, r2, r3
        blr

llvm-svn: 21321
 2005-04-18 07:48:09 +00:00
Chris Lattner ee84413730 silence a bogus warning 
llvm-svn: 21320
 2005-04-18 05:26:21 +00:00
Chris Lattner b61ecb5875 Fold setcc of MVT::i1 operands into logical operations 
llvm-svn: 21319
 2005-04-18 04:48:12 +00:00
Chris Lattner 6d40fd01fe Another minor simplification: handle setcc (zero_extend x), c -> setcc(x, c') 
llvm-svn: 21318
 2005-04-18 04:30:45 +00:00
Chris Lattner 868d473009 Another simple xform 
llvm-svn: 21317
 2005-04-18 04:11:19 +00:00
Chris Lattner bd22d83d15 Fold: 
// (X != 0) | (Y != 0) -> (X|Y != 0)
        // (X == 0) & (Y == 0) -> (X|Y == 0)

Compiling this:

int %bar(int %a, int %b) {
        entry:
        %tmp.1 = setne int %a, 0
        %tmp.2 = setne int %b, 0
        %tmp.3 = or bool %tmp.1, %tmp.2
        %retval = cast bool %tmp.3 to int
        ret int %retval
        }

to this:

_bar:
        or r2, r3, r4
        addic r3, r2, -1
        subfe r3, r3, r2
        blr

instead of:

_bar:
        addic r2, r3, -1
        subfe r2, r2, r3
        addic r3, r4, -1
        subfe r3, r3, r4
        or r3, r2, r3
        blr

llvm-svn: 21316
 2005-04-18 03:59:53 +00:00
Chris Lattner d929f8bcd3 Make the AND elimination operation recursive and significantly more powerful, 
eliminating an and for Nate's testcase:

int %bar(int %a, int %b) {
        entry:
        %tmp.1 = setne int %a, 0
        %tmp.2 = setne int %b, 0
        %tmp.3 = or bool %tmp.1, %tmp.2
        %retval = cast bool %tmp.3 to int
        ret int %retval
        }

generating:

_bar:
        addic r2, r3, -1
        subfe r2, r2, r3
        addic r3, r4, -1
        subfe r3, r3, r4
        or r3, r2, r3
        blr

instead of:

_bar:
        addic r2, r3, -1
        subfe r2, r2, r3
        addic r3, r4, -1
        subfe r3, r3, r4
        or r2, r2, r3
        rlwinm r3, r2, 0, 31, 31
        blr

llvm-svn: 21315
 2005-04-18 03:48:41 +00:00
Nate Begeman 602a45f415 Change codegen for setcc to read the bit directly out of the condition 
register.  Added support in the .td file for the g5-specific variant
  of cr -> gpr moves that executes faster, but we currently don't
  generate it.

llvm-svn: 21314
 2005-04-18 02:43:24 +00:00
Chris Lattner ed5189da51 Add support for targets that require stubs for external functions. 
llvm-svn: 21313
 2005-04-18 01:44:27 +00:00
Chris Lattner f281f791b5 Handle ExternalSymbol operands in the PPC JIT 
llvm-svn: 21312
 2005-04-18 00:46:10 +00:00
Nate Begeman f24225d4d7 Update dejagnu tests to use the new pattern isel flag 
llvm-svn: 21311
 2005-04-16 04:25:48 +00:00
Jeff Cohen df4f480498 Add CondPropagate.cpp to VC++ Transforms project 
llvm-svn: 21310
 2005-04-16 02:51:44 +00:00
Nate Begeman 779c5cbb44 Make pattern isel default for ppc 
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default

llvm-svn: 21309
 2005-04-15 22:12:16 +00:00
Chris Lattner e0a9d042e2 new pass 
llvm-svn: 21307
 2005-04-15 21:13:16 +00:00
Chris Lattner 16a50fd0a0 a new simple pass, which will be extended to be more useful in the future. 
This pass forward branches through conditions when it can show that the
conditions is either always true or false for a predecessor.  This currently
only handles the most simple cases of this, but is successful at threading
across 2489 branches and 65 switch instructions in 176.gcc, which isn't bad.

llvm-svn: 21306
 2005-04-15 19:28:32 +00:00
Chris Lattner d041242256 add a new prototype 
llvm-svn: 21305
 2005-04-15 19:24:49 +00:00
Chris Lattner 8579c2c474 new testcase 
llvm-svn: 21304
 2005-04-15 19:24:36 +00:00
Andrew Lenharth 00ce283b3f fix calls 
llvm-svn: 21303
 2005-04-14 17:34:20 +00:00
Andrew Lenharth 7ae3aba5aa a 21264 fix, and fix the operator precidence on an and -> zap check (should fix hundreds of test cases 
llvm-svn: 21302
 2005-04-14 16:24:00 +00:00
Andrew Lenharth 10b7bceb8e added a random and mask test 
llvm-svn: 21301
 2005-04-14 16:17:49 +00:00
Duraid Madina 0a7c2b9078 print negative 64 bit immediates as negative numbers, makes things a little 
easier on the eyes, not that numbers like 18446744073709541376 are bad or
anything

llvm-svn: 21300
 2005-04-14 10:08:01 +00:00
Duraid Madina dfbbcc098b oops, this stopped us turning movl r4=0xFFFFFFFF;; and rX, r4 into zxt4 
llvm-svn: 21299
 2005-04-14 10:06:35 +00:00
Nate Begeman 53d3eccbe2 Implement multi-way branches through logical ops on condition registers. 
This can generate considerably shorter code, reducing the size of crafty
by almost 1%.  Also fix the printing of mcrf.  The code is currently
disabled until it gets a bit more testing, but should work as-is.

llvm-svn: 21298
 2005-04-14 09:45:08 +00:00
Nate Begeman 80c095f422 Add a couple missing transforms in getSetCC that were triggering assertions 
in the PPC Pattern ISel

llvm-svn: 21297
 2005-04-14 08:56:52 +00:00
Duraid Madina f6b666fb06 we have zextloads, not sextloads! 
llvm-svn: 21296
 2005-04-14 08:37:32 +00:00
Nate Begeman 65a82c562e Add the necessary support to codegen condition register logical ops with 
register allocated condition registers.  Make sure that the printed
  output is gas compatible.

llvm-svn: 21295
 2005-04-14 03:20:38 +00:00
Nate Begeman be21011911 Start allocating condition registers. Almost all explicit uses of CR0 are 
now gone.  Next step is to get rid of the remaining ones and then start
allocating bools to CRs where appropriate.

llvm-svn: 21294
 2005-04-13 23:15:44 +00:00
Nate Begeman dd1bb81d04 Implement the fold shift X, zext(Y) -> shift X, Y at the target level, 
where it is safe to do so.

llvm-svn: 21293
 2005-04-13 22:14:14 +00:00
Nate Begeman 04ae873648 Add CodeGen tests for the recent SelectionDAG transforms 
llvm-svn: 21292
 2005-04-13 21:45:13 +00:00
Nate Begeman 4ddd81657b Disbale the broken fold of shift + sz[ext] for now 
Move the transform for select (a < 0) ? b : 0 into the dag from ppc isel
Enable the dag to fold and (setcc, 1) -> setcc for targets where setcc
  always produces zero or one.

llvm-svn: 21291
 2005-04-13 21:23:31 +00:00
Chris Lattner 56d177a344 fix an infinite loop 
llvm-svn: 21289
 2005-04-13 20:06:29 +00:00
Chris Lattner e3d17d8225 fix some serious miscompiles on ia64, alpha, and ppc 
llvm-svn: 21288
 2005-04-13 19:53:40 +00:00
Chris Lattner 8c3d409dc7 avoid work when possible, perhaps fix the problem nate and andrew are seeing 
with != 0 comparisons vanishing.

llvm-svn: 21287
 2005-04-13 19:41:05 +00:00
Andrew Lenharth 93341a0f82 WOW, function calls still seem to work after this. 
llvm-svn: 21286
 2005-04-13 17:17:28 +00:00
Andrew Lenharth c3621316ee prepare for func call optimization 
llvm-svn: 21285
 2005-04-13 16:19:50 +00:00
Andrew Lenharth c2ff402c84 regression case for faster call sequence 
llvm-svn: 21284
 2005-04-13 16:16:01 +00:00
Andrew Lenharth 714dd6a0ec check that casts still use zap 
llvm-svn: 21283
 2005-04-13 13:00:16 +00:00
Duraid Madina 2f2312575b * add the shladd instruction 
* fold left shifts of 1, 2, 3 or 4 bits into adds

  This doesn't save much now, but should get a serious workout once
  multiplies by constants get converted to shift/add/sub sequences.
  Hold on! :)

llvm-svn: 21282
 2005-04-13 06:12:04 +00:00
Andrew Lenharth c7287c8eda add matches for SxADDL and company, as well as simplify the SxADDQ code 
llvm-svn: 21281
 2005-04-13 05:19:55 +00:00
Chris Lattner e69ad5fd12 Implement expansion of unsigned i64 -> FP. 
Note that this probably only works for little endian targets, but is enough
to get siod working :)

llvm-svn: 21280
 2005-04-13 05:09:42 +00:00
Duraid Madina e7ef27bcfe * if ANDing with a constant of the form: 
0x00000..00FFF..FF
      ^      ^
      ^      ^
    any number of
    0's followed by
    some number of
    1's

    then we use dep.z to just paste zeros over the input. For the special
    cases where this is zxt1/zxt2/zxt4, we use those instructions instead,
    because we're all about readability!!!
    that's what it's about!! readability!

  *twitch* ;D

llvm-svn: 21279
 2005-04-13 04:50:54 +00:00
Andrew Lenharth 5cee4ef049 added s4addl matching test 
llvm-svn: 21277
 2005-04-13 04:41:06 +00:00
Andrew Lenharth 8eb82fb524 added all flavors of zap for anding 
llvm-svn: 21276
 2005-04-13 03:47:03 +00:00
Chris Lattner 0efd77eda7 Make expansion of uint->fp cast assert out instead of infinitely recurse. 
llvm-svn: 21275
 2005-04-13 03:42:14 +00:00
Chris Lattner 60c23bd169 Fix some mysteriously missing {}'s which cause the miscompilation of 
Olden/mst, Ptrdist/bc, Obsequi, etc.

llvm-svn: 21274
 2005-04-13 03:29:53 +00:00
Chris Lattner b1f25ac188 add back the optimization that Nate added for shl X, (zext_inreg y) 
llvm-svn: 21273
 2005-04-13 02:58:13 +00:00
Chris Lattner 39844ac337 Oops, remove these too. 
llvm-svn: 21272
 2005-04-13 02:47:57 +00:00