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18465 Commits

Author SHA1 Message Date
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