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30eae3c022
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27885 Commits

Author SHA1 Message Date
Jim Grosbach
30eae3c022 PR2985 / <rdar://problem/6584986> 
When compiling in Thumb mode, only the low (R0-R7) registers are available
for most instructions. Breaking the low registers into a new register class
handles this. Uses of R12, SP, etc, are handled explicitly where needed
with copies inserted to move results into low registers where the rest of
the code generator can deal with them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 20:34:09 +00:00
Torok Edwin
68c405d6e8 fix style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68542 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 19:45:59 +00:00
Torok Edwin
eb55f3ea3c Another attempt at fixing PR2975. 
Types can have references to eachother, so we can't just call destroy on them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68523 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 17:23:02 +00:00
Chris Lattner
62ce3b31a7 fix rdar://6762290, a crash compiling cxx filt with clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68500 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 05:03:34 +00:00
Chris Lattner
683b08cf7c remove empty section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68485 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 02:55:53 +00:00
Bob Wilson
8f3434647d Handle 'a' modifier in ARM inline assembly. 
Patch by Richard Pennington.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68464 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 21:46:51 +00:00
Torok Edwin
5ce1b11412 revert r68457, its crashing in make check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68459 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 20:57:34 +00:00
Chris Lattner
e2a466bfa9 Teach llvm-bcanalyzer to skip over the header we use on LLVM IR files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68458 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 20:54:32 +00:00
Torok Edwin
59d5f83b32 fix (part of) memory leak on shutdown. See PR2975. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68457 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 20:49:21 +00:00
Ed Schouten
b5e0a96a8d Let the strcat optimizer return the pointer to the start of the buffer, 
instead of the place where it started to perform the string copy.

- PR3661
- Patch by Benjamin Kramer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68443 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 13:06:48 +00:00
Sanjiv Gupta
cae1b628a7 Map stack based frameindices for spills to zero based indices that can be accessed based on an external symbol defining the location of temporary data for a function. For example: we have spill slots addressed as foo.tmp + 0, foo.tmp + 1 etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68442 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-06 10:54:50 +00:00
Nick Lewycky
5a30f4f84a Remove bogus include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68421 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-04 07:42:46 +00:00
Nick Lewycky
21cc4460ef Add support for embedded metadata to LLVM. This introduces two new types of 
Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a function with the same naming
restriction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68420 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-04 07:22:01 +00:00
Bob Wilson
eec4b2d730 Wrap some lines to fix indentation problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68405 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 21:08:42 +00:00
Bob Wilson
1b46a68015 Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 20:53:25 +00:00
Dan Gohman
f50c7981ae Fix a TargetLowering optimization so that it doesn't duplicate 
loads when an input node has multiple uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68398 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 20:11:30 +00:00
Oscar Fuentes
fcf054bbd4 CMake: removed IA64AsmPrinter.cpp from lib/Target/IA64/CMakeLists.txt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 12:11:43 +00:00
Anton Korobeynikov
6c5cfec73e Separate MIPS asmprinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 10:41:41 +00:00
Anton Korobeynikov
60a19a4edd Fix target library name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 10:41:17 +00:00
Anton Korobeynikov
c67d1127d0 Fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 10:41:00 +00:00
Anton Korobeynikov
ea38970596 Move IA64 asmprinter to separate library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 10:38:51 +00:00
Mon P Wang
1e95580925 Added a x86 dag combine to increase the chances to use a 
movq for v2i64 on x86-32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68368 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 02:43:30 +00:00
Dan Gohman
8f9643f0f7 Delete ISD::INSERT_SUBREG and ISD::EXTRACT_SUBREG, which are unused. 
Note that these are distinct from TargetInstrInfo::INSERT_SUBREG
and TargetInstrInfo::EXTRACT_SUBREG, which are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 00:25:26 +00:00
Chris Lattner
6f532a988e use higher level APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68351 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-03 00:02:39 +00:00
Sanjiv Gupta
c2eb87afc1 Fixed build warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68333 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-02 18:33:12 +00:00
Sanjiv Gupta
5274a4afb7 To convert the StopPoint insn into an assembler directive by ISel, we need to have access to the line number field. So we convert that info as an operand by custom handling DBG_STOPPOINT in legalize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68329 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-02 18:03:10 +00:00
Sanjiv Gupta
b84d5a476a Params are not being generated as static globals now. The caller passes them onto the callee's stack directly and the callee loads the argvals from its own stack. Clang generated frameindexes validatd by recalculating the stack as if all frameindexes represent 1-byte slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68327 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-02 17:42:00 +00:00
Mikhail Glushenkov
7074875642 Fix build on Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-02 01:11:37 +00:00
Owen Anderson
e8a290fefc Reapply r68211, with the miscompilations it caused fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 23:53:49 +00:00
Devang Patel
9dfa1671fc Clean up pass manager cache after each run. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 22:34:41 +00:00
Chris Lattner
5867de1243 silence warning in release-asserts build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68253 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 22:14:45 +00:00
Daniel Dunbar
23e97b05da Add llvm::Triple class for abstracting access to target triples. 
- The code is silly, I'm just amusing myself. Rewrite to be efficient
   if you like. :)

Also, if you wish to debate the proper names of the triple components
I'm all ears.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 21:53:23 +00:00
Dan Gohman
de551f91d8 Use CHAR_BIT instead of hard-coding 8 in several places where it 
is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 18:45:54 +00:00
Dan Gohman
77c5b0d7dc Use LLVM type names instead of C type names in comments, to be 
less ambiguous and less C-specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68219 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 18:10:16 +00:00
Bob Wilson
bf6396bed0 Fix PR3862: Recognize some ARM-specific constraints for immediates in inline 
assembly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68218 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 17:58:54 +00:00
Dan Gohman
e63c4a2010 Revert r68172. It caused regressions in 
Applications/Burg/burg
  Applications/ClamAV/clamscan
and many other tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 16:37:47 +00:00
Chris Lattner
c23c1fc559 hopefully fix an apparent build error on windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 02:03:38 +00:00
Chris Lattner
7d9eb5884c fix a serious regression I introduced in my previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68173 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 01:43:03 +00:00
Owen Anderson
f41fcbb60d Enhance GVN to propagate simple conditionals. This fixes PR3921. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 01:20:45 +00:00
Misha Brukman
d485e885f0 * Fixed spelling of `invertible' 
* Simplified if statement


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 00:15:46 +00:00
Chris Lattner
46e7740a44 reimplement BitcodeReaderValueList in terms of WeakVH instead of making 
it be an LLVM IR User object.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68156 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 22:55:09 +00:00
Chris Lattner
d3c7b7359d Make the key of ValueRankMap an AssertingVH, so that we die violently 
if it dangles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68150 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 22:13:29 +00:00
Chris Lattner
722272df41 Add two new classes: WeakVH and AssertingVH. These are both "ValueHandles", 
which are effectively smart pointers to Value*'s.  They are both very light
weight and simple, and react to values being destroyed or being RAUW'd.

WeakVN does a best effort to follow a value around, including through RAUW 
operations and will get nulled out of the value is destroyed.  This is useful
for the eventual "metadata that references a value" work, because it is a
reference to a value that does not show up on its use_* list.

AssertingVH is a pointer that compiles down to a dumb raw pointer when 
assertions are disabled.  When enabled, it emits an assertion if the 
pointed-to value is destroyed while it is still being referenced.  This
is very useful for Maps and other things, and should have caught the recent
bugs in CallGraph and Reassociate, for example.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68149 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 22:11:05 +00:00
Evan Cheng
de62192843 Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1. 
e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = lshr i32 %x, 18
       %t3 = select i1 %t1, i32 %t2, i32 %x
       ret i32 %t3
}

was turned into

define i32 @t2(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = select i1 %t1, i32 18, i32 0
       %t3 = lshr i32 %x, %t2
       ret i32 %t3
}

For most targets, that means materializing two constants and then a select. e.g. On x86-64

movl    %esi, %eax
shrl    $18, %eax
testl   %edi, %edi
cmovne  %esi, %eax
ret

=>

xorl    %eax, %eax
testl   %edi, %edi
movl    $18, %ecx
cmovne  %eax, %ecx
movl    %esi, %eax
shrl    %cl, %eax
ret

Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68142 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 20:42:45 +00:00
Evan Cheng
6fb2168aae Fully general expansion of integer shift of any size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 19:39:24 +00:00
Evan Cheng
d54f2d571d i128 shift libcalls are not available on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68133 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 19:38:51 +00:00
Dan Gohman
968dc7a207 Reapply 68073, with fixes. EH Landing-pad basic blocks are not 
entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68129 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 18:39:13 +00:00
Devang Patel
28c531cdbb Update call graph after inlining invoke. 
Patch by Jay Foad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68120 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 17:36:12 +00:00
Daniel Dunbar
be46c79501 Add llvm::sys::getHostTriple and remove 
llvm::sys::getOS{Name,Version}.

Right now the implementation just derives from LLVM_HOSTTRIPLE (which
is wrong, but it doesn't look like we have a define for the target
triple). Ideally this routine would actually be able to compute the
triple for targets we care about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68118 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 17:30:15 +00:00
Dan Gohman
456e281c11 Minor top-level comment fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68113 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 16:51:18 +00:00