Commit Graph

18736 Commits

Author SHA1 Message Date
Chris Lattner
88de6e77bf Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21882 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 00:17:04 +00:00
Nate Begeman
e066d68eb4 Add testcase for legalizing ISD::CTTZ efficiently. On PPC, ctlz(int) is
now codegen'd as this:

        addi r2, r3, -1
        andc r2, r2, r3
        cntlzw r2, r2
        subfic r3, r2, 32
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21881 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 23:45:54 +00:00
Nate Begeman
d7c4a4a6c0 Necessary changes to codegen cttz efficiently on PowerPC
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 23:43:56 +00:00
John Criswell
a65640edd0 Regression test for PR#563.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21879 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 21:47:35 +00:00
Tanya Lattner
d977095838 Fixed issue that broke ssa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21878 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 21:45:03 +00:00
Chris Lattner
4548a0ed32 fix some GCC 4 warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21877 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 21:40:40 +00:00
John Criswell
3163e2d9f3 Added support for decomposing constant expressions containing shr and shl
instructions.
Review of this commit would be greatly appreciated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21876 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 21:16:42 +00:00
Chris Lattner
98cf45bbf6 Fix lowering of ctlz, so now UnitTests/2005-05-11-Popcount-ffs-fls passes
with the CBE


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21875 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 20:24:12 +00:00
Chris Lattner
a801172e50 Fix lowering of cttz to work with signed values
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21874 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 20:02:14 +00:00
Chris Lattner
86f3e0c24e fix and concisify intinsic lowering for ctpop. Unfortunately, this code
looks completely untested. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21873 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 19:42:05 +00:00
Chris Lattner
0d67f0c80f Fix the last remaining bug preventing us from switching the X86 BE over
from the simple isel to the pattern isel.  This forces inserted libcalls
to serialize against other function calls, which was breaking
UnitTests/2005-05-12-Int64ToFP.  Hopefully this will fix issues on other
targets as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21872 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 19:02:11 +00:00
Chris Lattner
27e9b41464 Do not memoize ADJCALLSTACKDOWN nodes, provide a method to hack on them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21871 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 18:57:39 +00:00
Chris Lattner
16ce0df927 wrap long line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21870 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 18:57:06 +00:00
Chris Lattner
73b35371bf new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21869 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 18:56:45 +00:00
Chris Lattner
5c33c9a166 Make sure to legalize generated ctpop nodes, convert tabs to spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21868 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 18:35:21 +00:00
Andrew Lenharth
50d435f3a7 Legalize for CTLZ generates a ctpop, but this ctpop is not expanded.
This is bad.  It is generated if you are ctlz a type that is not
legal for the arch (aka ctlz of bytes on alpha legalize fine).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21867 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 17:23:41 +00:00
Duraid Madina
57ff7e5f64 expand count-leading/trailing-zeros; the test 2005-05-11-Popcount-ffs-fls.c
should now pass (the "LLVM" and "REF" results should be identical)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21866 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 08:45:08 +00:00
Chris Lattner
07fc17371b include the other bit count intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21863 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:31:01 +00:00
Chris Lattner
18aa680a96 Add some notes for expanding clz/ctz
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21862 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:27:09 +00:00
Chris Lattner
e3ef0a8b9f Simplify this code, use the proper shift amount
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21861 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:21:31 +00:00
Duraid Madina
63bbed536c add the popcount instruction and support this in the isel
the primary user of this will probably end up being find-first-set-bit/find-
last-set-bit, which i'll get around to...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21860 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:16:09 +00:00
Chris Lattner
9b583b4910 Legalize this correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21859 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:09:47 +00:00
Chris Lattner
1f38e5c431 No really IA*64* :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21858 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:03:56 +00:00
Chris Lattner
c610d4267f X86 has more than just 32-bit registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21857 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:00:34 +00:00
Chris Lattner
edb1add9a0 implement expansion of ctpop nodes, implementing CodeGen/Generic/llvm-ct-intrinsics.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21856 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 04:51:16 +00:00
Chris Lattner
276260b16d Print bit count nodes correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21855 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 04:50:30 +00:00
Chris Lattner
3c8a3b1393 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21854 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 04:22:47 +00:00
Chris Lattner
5eb9f0d56c update this to reflect the new selection daggy world
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21853 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 03:53:53 +00:00
Chris Lattner
590cff389d don't duplicate information, particularly when it's out of date!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21852 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 03:35:57 +00:00
Chris Lattner
6d5857e139 Do not use "" as a sentinal for a missing argument! This fixes PR560.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21850 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 23:20:17 +00:00
Chris Lattner
47f9607e56 new testcase for PR562
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21849 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:32:29 +00:00
Misha Brukman
c74fd7af26 Remove vim modeline; this should go into ~/.vimrc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21848 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:06:41 +00:00
Misha Brukman
bff8cc42b4 Remove vim modeline, this belongs in ~/.vimrc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21847 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:06:14 +00:00
Misha Brukman
c43d914175 Consistently surround `cl::' code structures with <b> and <tt> to make them
stand out as code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21846 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:05:27 +00:00
Misha Brukman
b5cd8459df Why output multiple strings, let the compiler concatenate them for us for free
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21845 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:03:50 +00:00
Misha Brukman
5a2a3826ef * Convert tabs to spaces, fix code alignment
* Remove trailing whitespace
* Wrap long lines


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21844 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 22:02:28 +00:00
Duraid Madina
e8714afaa5 note HP-UX support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21841 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 06:57:53 +00:00
Chris Lattner
6415bb4c29 Convert feature of the simple isel over for the pattern isel to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21840 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 03:53:18 +00:00
Chris Lattner
641f02f10f Fix Reassociate/shifttest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21839 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 03:39:25 +00:00
Jeff Cohen
19bb2283e6 Silence some VC++ warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21838 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 02:22:38 +00:00
Chris Lattner
780b6d08ab new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21837 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 00:33:36 +00:00
Chris Lattner
7f78f218fd If a function contains no allocas, all of the calls in it are trivially
suitable for tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21836 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 23:51:13 +00:00
Chris Lattner
ef311aa7cf The semantics of cast X to bool are a comparison against zero, not a truncation!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21833 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 22:17:13 +00:00
Chris Lattner
edcee6f5fd testcase I've had in my tree
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21832 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 21:21:10 +00:00
Chris Lattner
966cdfb600 Implement READPORT/WRITEPORT, implementing the last X86 regression tests
that were failing with the pattern selector.  Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21831 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 21:17:38 +00:00
Chris Lattner
cecd67b432 do not emit illegal instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21830 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 21:06:04 +00:00
Chris Lattner
82c7897f49 Fix the syntax of the i/o instructions, these are obviously unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21829 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:49:20 +00:00
Chris Lattner
4e6ce5f9c7 legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with
the pattern isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21828 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:37:29 +00:00
Chris Lattner
6d5b8e1646 legalize readio/writeio into a load/store if requested
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21827 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:36:57 +00:00
Chris Lattner
52d08bd9d8 legalize READPORT, WRITEPORT, READIO, WRITEIO, at least in the basic cases
where they are directly supported by the architecture.  Wrap a bunch of
long lines :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21826 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:23:03 +00:00