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Author SHA1 Message Date
Evan Cheng
3749943648 Teach liveintervalanalysis about virtual registers which are defined by reg_sequence instructions that are formed by registers defined by distinct instructions. e.g. 
80      %reg1041:6<def> = VSHRNv4i16 %reg1034<kill>, 12, pred:14, pred:%reg0
. . .
120     %reg1041:5<def> = VSHRNv4i16 %reg1039<kill>, 12, pred:14, pred:%reg0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 18:27:40 +00:00
Jeffrey Yasskin
91dd419ba4 Add a suppressions file for an intermittent "leak" under RegisterPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 18:15:26 +00:00
Daniel Dunbar
08a408a4b3 MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:41:00 +00:00
Daniel Dunbar
ae7fb0b03e MC/Mach-O/x86_64: Relocations in debug sections should use local relocations 
when possible.
 - <rdar://problem/7934873>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:22:39 +00:00
Daniel Dunbar
e4eae84f76 lit: Allow test_format to be None. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:22:35 +00:00
Benjamin Kramer
66760be919 Try again if write(2) reports an recoverable error. 
This should fix mysteriously crashing boost regression tests when stderr is
managed by bjam (PR7043).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103085 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 15:17:47 +00:00
Shantonu Sen
d1dd5ed0ed Add newline to end of file to avoid warning 
when building llvm with clang


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103084 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 13:56:46 +00:00
Eric Christopher
f4f06906b8 Revert 102941, we're going to do this via attr and can just 
hack the code to turn it off when debugging.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 07:35:59 +00:00
Sean Hunt
dc896a4118 Include the right header for toupper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 04:31:44 +00:00
Sean Hunt
84e2f959b7 Add an emitter to handle the list of clang statement nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103071 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 04:13:08 +00:00
Bob Wilson
4aad88d1fd Combine the implementations of the core part of the SSAUpdater and 
MachineSSAUpdater to avoid duplicating all the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 23:18:19 +00:00
Eric Christopher
d2760d1cba Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 22:13:03 +00:00
Chris Lattner
af1465b17b add the ability to associate 'category' names with clang diagnostics 
and diagnostic groups.  This allows the compiler to group 
diagnostics together (e.g. "Logic Warning", 
"Format String Warning", etc) like the static analyzer does.  
This is not exposed through anything in the compiler yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:44:23 +00:00
Evan Cheng
94cc6d3a2b With -neon-reg-sequence, models forming a Q register from a pair of consecutive D registers as a REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:39:49 +00:00
Evan Cheng
826bdfa603 Do not pre-allocate for registers which form a REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:38:12 +00:00
Evan Cheng
afff40a62d Teach PHI elimination to remove REG_SEQUENCE instructions and update references of the source operands with references of the destination with subreg indices. e.g. 
%reg1029<def>, %reg1030<def> = VLD1q16 %reg1024<kill>, ...
%reg1031<def> = REG_SEQUENCE %reg1029<kill>, 5, %reg1030<kill>, 6
=>
%reg1031:5<def>, %reg1031:6<def> = VLD1q16 %reg1024<kill>, ...

PHI elimination now does more than phi elimination. It is really a de-SSA pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103039 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:26:52 +00:00
Duncan Sands
55cd6cb141 Use llvm.foo as the intrinsic, rather than llvm.dbg.value. Since the 
values passed to llvm.dbg.value were not valid for the intrinsic, it
might have caused trouble one day if the verifier ever started checking
for valid debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:09:25 +00:00
Bob Wilson
34414a634e Defer adding critical edges to the "toSplit" list until after checking for 
indirect branches in all the predecessors.  This avoids unnecessarily
splitting edges in cases where load PRE is not possible anyway.
Thanks to Jakub Staszak for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 20:03:21 +00:00
Chris Lattner
cd465012b3 one more thing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 18:16:00 +00:00
Chris Lattner
860e0b4c95 update instructions for llvm-gcc4, the brave new world! PR7037 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 18:15:33 +00:00
Chris Lattner
d4ac35b350 "on the rare occasion the SPU BE produces illegal assembly - it tries to emit an add instruction of the form 'a reg, reg, imm'." 
Patch by Kalle Raiskila!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 17:58:46 +00:00
Daniel Dunbar
e9f0fb4179 MC/X86: Chris pointed that 'as' isn't consistent in accepting the long form of 
instructions which have no direct register usage.

Darwin 'as' accepts:
  add $0, (%rax)
but rejects
  mov $0, (%rax)
for example.

Given that, only accept suffix matches which match exactly one form. We still
need to emit nice diagnostics for failures...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 17:31:02 +00:00
Evan Cheng
28428cd6f3 Rename variables for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 17:12:26 +00:00
Daniel Dunbar
c918d6043b MC/X86: Add "support" for matching ATT style mnemonic prefixes. 
- The idea is that when a match fails, we just try to match each of +'b', +'w',
   +'l'. If exactly one matches, we assume this is a mnemonic prefix and accept
   it. If all match, we assume it is width generic, and take the 'l' form.

 - This would be a horrible hack, if it weren't so simple. Therefore it is an
   elegant solution! Chris gets the credit for this particular elegant
   solution. :)

 - Next step to making this more robust is to have the X86 matcher generate the
   mnemonic prefix information. Ideally we would also compute up-front exactly
   which mnemonic to attempt to match, but this may require more custom code in
   the matcher than is really worth it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 16:12:42 +00:00
Duncan Sands
d29f5282e0 Fix a problem exposed by my previous commit and noticed by a release-asserts 
buildbot: the debugging and non-debugging versions of getFunction were not
functionally equivalent: the non-debugging version wrongly assumed that if a
metadata operand was not metadata, then it had a non-null containing function.
This is not true, since the operand might be a global value, constant etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 14:25:42 +00:00
Duncan Sands
203f7cb68b Fix a variant of PR6112 found by thinking about it: when doing 
RAUW of a global variable with a local variable in function F,
if function local metadata M in function G was using the global
then M would become function-local to both F and G, which is not
allowed.  See the testcase for an example.  Fixed by detecting
this situation and zapping the metadata operand when it occurs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 12:43:36 +00:00
Gabor Greif
2f256f4561 fix operand indexes when outputting InvokeInsts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103003 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 09:23:54 +00:00
Devang Patel
9c488376ef Set DW_AT_APPLE_omit_frame_ptr in endFunction() where MachineFunction is available all the time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103001 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 06:15:30 +00:00
Dan Gohman
acd8cab843 Use the SCEVAddRecExpr::getPostIncExpr utility function instead 
of doing the same thing manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 01:12:27 +00:00
Dan Gohman
c0ed0091dc Fix a copy+pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102996 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 01:11:15 +00:00
Devang Patel
01c5ff6437 Do not ignore debug loc attached with llvm.dbg.declare while collecting debug info used by a module. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 01:05:02 +00:00
Evan Cheng
f1ced259b5 Instruction selection optimizations may have moved the def of a function argument out of the entry block. rdar://7937489 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:58:39 +00:00
Kevin Enderby
a0161cd6f8 Fix to r102952. The MOV64toSDrm record in X86Instr64bit.td needed the opcode 
changed to 0x7E from 0x6E as well as the previous change of RPDI to S3SI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:42:46 +00:00
Daniel Dunbar
4f83e73a6d MC/Matcher: Add support for over-riding the default MatchInstruction function 
name (for example, to allow targets to interpose the actual MatchInstruction
function).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:33:13 +00:00
Daniel Dunbar
31e8e1d085 llvm-mc: Fix case were we would skip a line in the .s file after an instruction 
match failure.

Also, fixes a few memory leak FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:33:07 +00:00
Evan Cheng
ba609c88a5 Teach scheduler about REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:22:40 +00:00
Dan Gohman
d622b0b208 Add a polygen rule that reflects the fact that nsw and nuw can be 
used together in either order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102983 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:13:24 +00:00
Dan Gohman
2131e2a75f Re-enable isel kill flags, now that the local allocator is ignoring them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:12:15 +00:00
Jim Grosbach
6e62b4ef14 rdar://7937137 - dbg values not being handled in thumb1 version of 
eliminateFrameIndex(), leading to llvm_unreachable() assertion failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:11:37 +00:00
Dan Gohman
7ae3ac831e Update one more 2.7 to 2.8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 23:52:21 +00:00
Dan Gohman
b44f6c6b6a Minimally update ReleaseNotes.html for 2.8 development; uncomment and 
update the big red warning at the top. Most of the old content remains
and awaits revision.

Clear out the API changes section, and start it up again with a
mention of the add->fadd transition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 23:51:05 +00:00
Jakob Stoklund Olesen
a50fba933c Remove preexisting kill flags in RegAllocLocal, just like LiveVariables does. 
This should make it possible to start producing kill flags in isel without
breaking stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102976 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 23:49:20 +00:00
Dan Gohman
1fdc614bee Factor out FastISel's code for materializing constants and other values 
in registers into a separate function to de-couple it from the
top-down-specific logic in getRegForValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 23:36:34 +00:00
Dale Johannesen
08673d2950 Implement builtin_return_address(x) and builtin_frame_address(x) 
on PPC for x!=0.  7624113.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:59:34 +00:00
Dan Gohman
1eaac53261 Remove the API compatibility layer which converted add, sub, and mul 
to fadd, fsub, and fmul, when used with a floating-point type. LLVM
has supported the new instructions since 2.6, so it's time to get
on board.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:44:19 +00:00
Jakob Stoklund Olesen
b98c549d13 Check that subregisters don't have independent values in RemoveCopyByCommutingDef(). 
This fixes PR6941.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:40:32 +00:00
Dan Gohman
d4d01154ef Fix tests to use fadd, fsub, and fmul, instead of add, sub, and mul, 
when the type is floating-point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:36:46 +00:00
Eric Christopher
b4c14aaa50 Reword a comment slightly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102966 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:18:49 +00:00
Dan Gohman
deff621abd Use getConstant instead of getIntegerSCEV. The two are basically the 
same, now that getConstant has overloads consistent with ConstantInt::get.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 22:09:21 +00:00
Bill Wendling
cec9c50924 Revert r102948. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 21:51:21 +00:00