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Author SHA1 Message Date
Chris Lattner
513503961d add a random codegen deficiency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 16:08:58 +00:00
Evan Cheng
7216920791 Add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77584 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 08:56:19 +00:00
Evan Cheng
37b7387da9 Optimize some common usage patterns of atomic built-ins __sync_add_and_fetch() and __sync_sub_and_fetch. 
When the return value is not used (i.e. only care about the value in the memory), x86 does not have to use add to implement these. Instead, it can use add, sub, inc, dec instructions with the "lock" prefix.

This is currently implemented using a bit of instruction selection trick. The issue is the target independent pattern produces one output and a chain and we want to map it into one that just output a chain. The current trick is to select it into a merge_values with the first definition being an implicit_def. The proper solution is to add new ISD opcodes for the no-output variant. DAG combiner can then transform the node before it gets to target node selection.

Problem #2 is we are adding a whole bunch of x86 atomic instructions when in fact these instructions are identical to the non-lock versions. We need a way to add target specific information to target nodes and have this information carried over to machine instructions. Asm printer (or JIT) can use this information to add the "lock" prefix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77582 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 08:33:02 +00:00
Daniel Dunbar
7f93dc8345 Switch obvious clients to Twine instead of utostr (when they were already using 
a Twine, e.g., for names).
 - I am a little ambivalent about this; we don't want the string conversion of
   utostr, but using overload '+' mixed with string and integer arguments is
   sketchy. On the other hand, this particular usage is something of an idiom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77579 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 04:20:37 +00:00
Sanjiv Gupta
e409f0a779 Keep track of references to mem(cpy,move,set) and then print only one extern 
declaration for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77578 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 04:15:15 +00:00
Dan Gohman
a4714e025d Add a new register class to describe operands that can't be SP, 
due to x86 encoding restrictions. This is currently off by default
because it may cause code quality regressions. This is for PR4572.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77565 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 01:56:29 +00:00
Dan Gohman
084d1ba5ad Eliminate a bunch of redundant tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77558 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 00:40:42 +00:00
Bob Wilson
cf661e2c56 Lower a 128-bit BUILD_VECTOR with 2 elements to a pair of INSERT_VECTOR_ELTs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 00:31:25 +00:00
Dan Gohman
7c5f0c5ce9 Use array_endof instead of doing it manually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77553 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 00:10:18 +00:00
Evan Cheng
8770f747a9 tbb / tbh instructions only branch forward, not backwards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 23:20:20 +00:00
Evan Cheng
d600522608 Add VFP3 D registers to the DPR register class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77521 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 23:03:41 +00:00
Owen Anderson
debcb01b0f Move types back to the 2.5 API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 22:17:13 +00:00
Chris Lattner
2a38688494 inline the global 'getInstrOperandRegClass' function into its callers 
now that TargetOperandInfo does the heavy lifting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77508 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 21:36:49 +00:00
Evan Cheng
20a2a0aff3 Make sure Thumb2 uses the right call instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77507 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 21:26:42 +00:00
Chris Lattner
cb778a8634 1. Introduce a new TargetOperandInfo::getRegClass() helper method 
and convert code to using it, instead of having lots of things
   poke the isLookupPtrRegClass() method directly.

2. Make PointerLikeRegClass contain a 'kind' int, and store it in
   the existing regclass field of TargetOperandInfo when the
   isLookupPtrRegClass() predicate is set.  Make getRegClass pass
   this into TargetRegisterInfo::getPointerRegClass(), allowing
   targets to have multiple ptr_rc things.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77504 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 21:10:12 +00:00
Chris Lattner
2cfd52c507 Give getPointerRegClass() a "kind" value so that targets can 
support multiple different pointer register classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77501 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 20:31:52 +00:00
Evan Cheng
0531d04d00 - Fix an obvious copy and paste error. 
- Darwin Thumb2 call clobbers r9.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77500 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 20:10:36 +00:00
Eric Christopher
978dae35e2 Add llvm_unreachable for ... unreachable code! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77480 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 18:14:04 +00:00
Bob Wilson
b7d0c90c44 Change Neon VLDn intrinsics to return multiple values instead of really 
wide vectors.  Likewise, change VSTn intrinsics to take separate arguments
for each vector in a multi-vector struct.  Adjust tests accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 16:39:22 +00:00
Chris Lattner
37dfdecafd more syntactic cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77442 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 06:33:53 +00:00
Chris Lattner
c3c35b1721 minor smallvector cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 06:29:53 +00:00
Chris Lattner
31dcfe6121 whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77438 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 05:48:09 +00:00
Chris Lattner
83d1c3db39 mingw uses .data and .text, not _data and _text. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 05:25:42 +00:00
Chris Lattner
b8f396bdbb fix PR4584 with a trivial patch now that the pieces are in place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 05:20:33 +00:00
Chris Lattner
e53a600f06 pass the mangler down into the various SectionForGlobal methods. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77432 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 05:09:30 +00:00
Chris Lattner
a679207d58 constant prop a utostr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77430 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 04:55:08 +00:00
Chris Lattner
067fe1ae54 remove some completely wrong code. 1 is never < 16. It turns out that GCC appears to put strings of any length into the ELF cstring equivalent, so just rip out the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77429 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 04:54:38 +00:00
Evan Cheng
5657c01949 Optimize Thumb2 jumptable to use tbb / tbh when all the offsets fit in byte / halfword. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77422 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 02:18:14 +00:00
Eric Christopher
794bfed25d Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 01:01:19 +00:00
Bill Wendling
859cc77963 Change the "PreferredEHDataFormat" from "absptr" if we're on a Darwin system > 
Leopard.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77414 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 00:59:34 +00:00
Eric Christopher
71c6753d03 Add support for gcc __builtin_ia32_ptest{z,c,nzc} intrinsics. Lower 
to ptest instruction plus setcc. Revamp ptest instruction. Add test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77407 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 00:28:05 +00:00
Daniel Dunbar
0e2771f4c4 Match X86 register names to number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 00:02:19 +00:00
David Goodwin
d9453784fb Thumb-2: fix typo that caused incorrect stack elimination for VFP operations and very large stack frames. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77401 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 23:52:33 +00:00
Daniel Dunbar
16cdcb38b2 Move X86 instruction parsing into X86/AsmParser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 22:40:46 +00:00
Bill Wendling
1711a7c8cf Output the correct format for Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77376 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 22:03:50 +00:00
Bill Wendling
ac3126ebdd Darwin outputs (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) when we're 
dealing with Data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 21:53:17 +00:00
Devang Patel
0a9f7b9c3e Rename MDNode.h header. It defines MDnode and other metadata classes. 
New name is Metadata.h.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77370 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 21:49:47 +00:00
Owen Anderson
af7ec97587 Return ConstantVector to 2.5 API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77366 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 21:19:26 +00:00
Evan Cheng
e7c329bf4b In thumb2 mode, add pc is unpredictable. Use add + mov pc instead (that is until more optimization goes in). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 20:53:24 +00:00
David Goodwin
6340632d3b Remove support for ORN to workaround <rdar://problem/7096522>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 20:51:25 +00:00
Daniel Dunbar
a2edbabcb8 Provide generic MCAsmParser when constructing target specific parsers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 20:47:52 +00:00
Chris Lattner
b180d992d8 more simplifications and cleanup. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77350 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 18:48:43 +00:00
Owen Anderson
1fd7096407 Change ConstantArray to 2.5 API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 18:32:17 +00:00
David Goodwin
5743854f47 Add workaround for <rdar://problem/7098328>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77340 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 18:15:38 +00:00
Chris Lattner
bf15e433b9 Fix PR4639, a ELF-TLS regression from some of my refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 17:57:51 +00:00
Chris Lattner
4bb253c60f the apple "ld_classic" linker doesn't support .literal16 in 32-bit 
mode, and "ld64" (the default linker) falls back to it in -static
mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77334 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 17:50:28 +00:00
David Goodwin
3583df7676 Add Thumb-2 patterns for ARMsrl_flag and ARMsra_flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77329 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 17:06:49 +00:00
Chris Lattner
8fb0039ea6 fix unused variable warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 16:49:19 +00:00
Evan Cheng
bae20a6353 tADDrSPI doesn't have a predicate operand, but tADDhirr and tADDi3 have. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77305 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 07:38:35 +00:00
Evan Cheng
542383d93b Code clean up. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77301 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-28 06:24:12 +00:00