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Author SHA1 Message Date
Chris Lattner
4c73570c42 Add doxygen comments, patch contributed by Evan Jones. 
llvm-svn: 21397
 2005-04-21 16:10:03 +00:00
Chris Lattner
9d2c6a3981 add support for taking and resolving the address of free. 
llvm-svn: 21396
 2005-04-21 16:09:43 +00:00
Chris Lattner
8ac773f1f1 add support for taking the address of free. 
llvm-svn: 21395
 2005-04-21 16:08:59 +00:00
Chris Lattner
2f96b346b4 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
472c891d23 Improve doxygen documentation, patch contributed by Evan Jones! 
llvm-svn: 21393
 2005-04-21 16:04:49 +00:00
Chris Lattner
87fbc1c554 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
d0a2fda2c6 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
5ad1e1ebec 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
6ce1b109aa 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
09408198bf Fix some broken links, taking care of PR554 
llvm-svn: 21387
 2005-04-21 04:53:58 +00:00
Chris Lattner
7cf3fcad59 update to match build changes. 
llvm-svn: 21386
 2005-04-21 04:52:37 +00:00
Reid Spencer
4478133ab0 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
c3b52b74cd 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
4e5314bf66 Remove trailing whitespace at the end of lines 
llvm-svn: 21380
 2005-04-20 16:42:34 +00:00
Misha Brukman
e096a50cb7 Remove trailing whitespace, patch by Markus Oberhumer. 
llvm-svn: 21379
 2005-04-20 16:05:03 +00:00
Misha Brukman
7f08d0bc03 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
11854af05f 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
7f8c9b4840 #include system headers after all LLVM headers 
llvm-svn: 21374
 2005-04-20 04:51:29 +00:00
Misha Brukman
75950190e3 Eliminate trailing spaces at end-of-line 
llvm-svn: 21372
 2005-04-20 04:08:35 +00:00
Misha Brukman
cf206fe8e1 Consistently eschew space between *' or &' and function argument name 
llvm-svn: 21371
 2005-04-20 04:07:47 +00:00
Misha Brukman
4113ed635d 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
1e88051ee8 Initialize fields mode, uid, and gid. 
Patch by Markus Oberhumer.  Thanks!

llvm-svn: 21369
 2005-04-20 03:55:35 +00:00
Misha Brukman
e69c186935 Align comments together for consistency 
llvm-svn: 21368
 2005-04-20 03:52:59 +00:00
Misha Brukman
30460cb33d * 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
145f1ec0a4 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
070188a856 ignore generated files 
llvm-svn: 21362
 2005-04-19 15:34:36 +00:00
Chris Lattner
0c97ef0c04 fix bogus warning 
llvm-svn: 21361
 2005-04-19 15:32:30 +00:00
Chris Lattner
64b466c8b1 fix PR549 
llvm-svn: 21360
 2005-04-19 15:27:29 +00:00
Chris Lattner
2538f1236a Bug fixed 
llvm-svn: 21355
 2005-04-19 06:08:04 +00:00
Chris Lattner
6b0132b48b Eliminate a broken transformation, fixing PR548 
llvm-svn: 21354
 2005-04-19 06:04:18 +00:00
Chris Lattner
3d4612c54c Add completely untested support for mtcrf/mfcrf encoding 
llvm-svn: 21353
 2005-04-19 05:41:52 +00:00
Chris Lattner
e6f861f92c 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
082ca8fcab Convert the XForm instrs and XSForm instruction over to use isDOT 
llvm-svn: 21351
 2005-04-19 05:15:18 +00:00
Chris Lattner
3fdfd4e009 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
e6f7713f03 convert over bform and iform instructions 
llvm-svn: 21349
 2005-04-19 05:00:59 +00:00
Chris Lattner
3ae0832381 Convert over DForm and DSForm instructions 
llvm-svn: 21348
 2005-04-19 04:59:28 +00:00
Chris Lattner
4ecf523af4 Convert XLForm and XForm instructions over to use PPC64 when appropriate. 
llvm-svn: 21347
 2005-04-19 04:51:30 +00:00
Chris Lattner
6a2abe8591 Convert XO XS and XFX forms to use isPPC64 
llvm-svn: 21346
 2005-04-19 04:40:07 +00:00
Chris Lattner
3cfa7a24cb 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
c2f7fcfbba 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
e4dc77290e 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
37f0a0aee9 Make this significantly harder 
llvm-svn: 21342
 2005-04-19 02:58:57 +00:00
Chris Lattner
c0018fd1a6 Add a real run line 
llvm-svn: 21341
 2005-04-19 02:53:26 +00:00
Chris Lattner
da71ec860a fix this testcase 
llvm-svn: 21340
 2005-04-19 02:52:04 +00:00
Chris Lattner
a0b4113f5d new testcase 
llvm-svn: 21339
 2005-04-19 02:26:23 +00:00
Chris Lattner
4c275cc054 add a run line 
llvm-svn: 21338
 2005-04-19 01:37:24 +00:00
Chris Lattner
19627580e5 Tell dj to run the tests in this directory 
llvm-svn: 21337
 2005-04-19 01:36:41 +00:00
Chris Lattner
57b0bbfcbd implementing shifting of literal integers 
llvm-svn: 21336
 2005-04-19 01:17:35 +00:00
Chris Lattner
414d27b765 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
3b1c0df702 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