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Author SHA1 Message Date
Devang Patel
7f508e8e10 test case for r105504. 
Radar 8055687.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 23:47:41 +00:00
Evan Cheng
2b4e727c6f Re-apply 105308 with fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105502 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 23:28:13 +00:00
Dan Gohman
a15ec5dfcc Don't track users of undef values; they aren't interesting for 
register pressure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105501 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 23:16:05 +00:00
Jim Grosbach
870c80540d Make if-conversion ignore dbg_value instructions in its analysis. rdar://7797940 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105498 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 23:01:26 +00:00
Nate Begeman
9e584b37b0 Handle multi-vector returns and args. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 22:53:30 +00:00
Devang Patel
80ecc153ea Update docs to reflect new DISubprogram elements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105495 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 22:49:55 +00:00
Stuart Hastings
0f1b813567 Support for nested functions/classes in debug output. Radar 7424645. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 22:36:03 +00:00
Devang Patel
93031ac032 Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 22:27:30 +00:00
Nate Begeman
7c21f747c7 Additional fixes to BuiltinsARM.def generator, on to clang codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 21:36:00 +00:00
Dale Johannesen
73c943fb43 More tail call removal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105485 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 21:14:24 +00:00
Jim Grosbach
1c8ab781d5 Skip dbg_value instructions when scanning instructions in register scavenging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 20:18:30 +00:00
Dan Gohman
c87b40b1cd Fix normalization and de-normalization of non-affine SCEVs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 19:16:34 +00:00
Jakob Stoklund Olesen
6de07178e1 Keep track of the call instructions whose clobber lists were skipped during fast 
register allocation.

Process all of the clobber lists at the end of the function, marking the
registers as used in MachineRegisterInfo.

This is necessary in case the calls clobber callee-saved registers (sic).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105473 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 18:08:29 +00:00
Dale Johannesen
8fa8e7fe95 More thoroughly disable tails calls by default. 
8060143, although this doesn't fix the real problem with tail call.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 18:04:24 +00:00
Jim Grosbach
8af44b687b Another fix to prevent debug info from affecting codegen. rdar://7797940 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 17:57:34 +00:00
Nate Begeman
92f98af9fb Progress on generating BuiltinsARM.def, still some duplicates to work out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 07:11:25 +00:00
Nate Begeman
73cef3e9b1 BuiltinsARM.def emitter, still needs a substantial bit of tweaking to lighten the load on clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 01:26:15 +00:00
Jim Grosbach
958e4e1967 more dbg_value adjustments so debug info doesn't affect codegen 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 01:23:30 +00:00
Mon P Wang
f62546ab04 Fixed a bug during widening where we would avoid legalizing a node. When we 
replace an OpA with a widened OpB, it is possible to get new uses of OpA due to CSE
when recursively updating nodes.  Since OpA has been processed, the new uses are
not examined again.  The patch checks if this occurred and it it did, updates the
new uses of OpA to use OpB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 01:20:10 +00:00
Dale Johannesen
4314426fc0 Remove more tail calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 01:01:24 +00:00
Dale Johannesen
522a181d69 Remove a tail call, and move some CHECKs to the 
functions where they belong.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 01:01:04 +00:00
Nate Begeman
a8979a0e7b Mangle __builtin_neon_* names appropriately. 
Add skeleton of support for emitting the list of prototypes for BuiltinsARM.def


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:21:41 +00:00
Dan Gohman
b304ba94db No need to special-case structs here; structs are first-class now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105442 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:18:06 +00:00
Jim Grosbach
d089a7ac70 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:15:00 +00:00
Dan Gohman
20af92e5b7 This test doesn't need the ssp attribute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:14:48 +00:00
Bob Wilson
40cbe7d5d4 For NEON vectors with 32- or 64-bit elements, select BUILD_VECTORs and 
VECTOR_SHUFFLEs to REG_SEQUENCE instructions.  The standard ISD::BUILD_VECTOR
node corresponds closely to REG_SEQUENCE but I couldn't use it here because
its operands do not get legalized.  That is pretty awful, but I guess it
makes sense for other targets.  Instead, I have added an ARM-specific version
of BUILD_VECTOR that will have its operands properly legalized.
This fixes the rest of Radar 7872877.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:04:02 +00:00
Dale Johannesen
da8dd92c9f Remove tail call. A tail call version will follow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-04 00:03:37 +00:00
Bob Wilson
26bf8f9a1b Add some missing checks in TwoAddressInstructionPass::CoalesceExtSubRegs. 
Check that all the instructions are in the same basic block, that the
EXTRACT_SUBREGs write to the same subregs that are being extracted, and that
the source and destination registers are in the same regclass.  Some of
these constraints can be relaxed with a bit more work.  Jakob suggested
that the loop that checks for subregs when NewSubIdx != 0 should use the
"nodbg" iterator, so I made that change here, too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 23:53:58 +00:00
Jim Grosbach
6ee358b4eb Cleanup 80-column and trim trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 23:49:57 +00:00
Jim Grosbach
3de755bb40 Teach the ARM load-store optimizer to deal with dbg_value instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105427 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 22:41:15 +00:00
Dale Johannesen
127e5244a0 Remove tail call to preserve this test. A tail 
call version will follow.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105422 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:57:48 +00:00
Dale Johannesen
9452ce30bc Make this test not use tail calls. A tail call 
version will follow.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105419 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:53:01 +00:00
Nate Begeman
3861e74490 Add some additional capabilities to the neon emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:35:22 +00:00
Rafael Espindola
c4b55610d8 Add a emit-llvm option to the plugin and make the path argument to also-emit-llvm optional. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:11:20 +00:00
Dale Johannesen
51e28e6348 Early implementation of tail call for ARM. 
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:09:53 +00:00
Dan Gohman
400f75cb5e Fix SimplifyDemandedBits' AssertZext logic to demand all the bits. It 
needs to demand the high bits because it's asserting that they're zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105406 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 20:21:33 +00:00
Bob Wilson
3844173f6e Revert 105308. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 18:28:31 +00:00
Nick Lewycky
662f738ec3 Perfer !string.empty() over string != "". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 17:13:23 +00:00
Benjamin Kramer
aede8118ad Forgot to update the most important part of the gtest modifications readme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 17:11:49 +00:00
Nick Lewycky
fc55defb30 Whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 17:10:17 +00:00
Benjamin Kramer
2e3f44eab2 Disable pthread support in googletest if llvm was configured without threads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105390 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 15:17:04 +00:00
Rafael Espindola
c72f8e9f9d Don't preserve all symbols in a .so and instead trust gold to know what is 
needed. The result is that now we are able to drop unnecessary symbol from
shared libraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 14:45:44 +00:00
Bill Wendling
869d60d39d Machine sink could potentially sink instructions into a block where the physical 
registers it defines then interfere with an existing preg live range.

For instance, if we had something like these machine instructions:

BB#0
  ... = imul ... EFLAGS<imp-def,dead>
  test ..., EFLAGS<imp-def>
  jcc BB#2 EFLAGS<imp-use>

BB#1
  ... ; fallthrough to BB#2

BB#2
  ... ; No code that defines EFLAGS
  jcc ... EFLAGS<imp-use>

Machine sink will come along, see that imul implicitly defines EFLAGS, but
because it's "dead", it assumes that it can move imul into BB#2. But when it
does, imul's "dead" imp-def of EFLAGS is raised from the dead (a zombie) and
messes up the condition code for the jump (and pretty much anything else which
relies upon it being correct).

The solution is to know which pregs are live going into a basic block. However,
that information isn't calculated at this point. Nor does the LiveVariables pass
take into account non-allocatable physical registers. In lieu of this, we do a
*very* conservative pass through the basic block to determine if a preg is live
coming out of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105387 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 07:54:20 +00:00
Benjamin Kramer
8ef297e945 Turns out gtest still prefers the system <tr1/tuple> over it's own 
implementation. Force the internal one to unbreak clang selfhost on linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105386 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 07:51:58 +00:00
Eric Christopher
30ef0e5658 Add first pass at darwin tls compiler support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 04:07:48 +00:00
Nate Begeman
162d3ba464 arm_neon.h now makes it through clang and generates appropriate code for those functions which can use 
generic vector operators rather than __builtin_neon_*


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 04:04:09 +00:00
Eric Christopher
7310064f4d One underscore, not two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 04:02:59 +00:00
Eli Friedman
268637ed0f Implement expansion in type legalization for add/sub with overflow. The 
expansion is the same as that used by LegalizeDAG.

The resulting code sucks in terms of performance/codesize on x86-32 for a
64-bit operation; I haven't looked into whether different expansions might be
better in general.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 03:49:50 +00:00
Eli Friedman
db1bf34178 Remove some already-fixed README entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 01:47:31 +00:00
Eli Friedman
a04a2c0a50 Remove README entry which no longer compiles to something sane. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 01:16:51 +00:00