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Author SHA1 Message Date
Benjamin Kramer
6844c8ea5a Teach InstructionSimplify to fold (A & B) & A -> A & B and (A | B) | A -> A | B. 
Reassociate does this but it doesn't catch all cases (e.g. if the operands are i1).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 22:39:55 +00:00
Gabor Greif
e2d50046fd typoes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 22:25:58 +00:00
Dale Johannesen
401e2d3386 Add missing X86 MMX declarations. Hopefully fixes buildbot? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 21:58:02 +00:00
Bill Wendling
220e240bdf Modify the comparison optimizations in the peephole optimizer to update the 
iterator when an optimization took place. This allows us to do more insane
things with the code than just remove an instruction or two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113640 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 21:55:43 +00:00
Jim Grosbach
51f5b67395 Add a missing case to duplicateCPV() for LSDA constants. Add a FIXME. rdar://8302157 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113637 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 21:38:22 +00:00
Michael J. Spencer
4e9c939312 CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113632 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 21:14:25 +00:00
Dale Johannesen
bb811a2445 Add X86 MMX type to bitcode and Type. 
(The Ada bindings probably need it too, but all the
obvious places to change say "do not edit this file".)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113618 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 20:55:01 +00:00
Bill Wendling
f9e49e86ee Use StringRef which performs the "early exit" when compared against a constant 
string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 20:42:26 +00:00
Devang Patel
4bafda9618 Add DEBUG message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 20:32:09 +00:00
Bill Wendling
1ec2ee6526 Reapply r113585. The msvc machine is mercurial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 20:20:28 +00:00
Benjamin Kramer
0ca25608b9 This transform is also performed by InstructionSimplify, remove the duplicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 19:52:35 +00:00
Bill Wendling
b28f579200 r113585 was causing clang-i686-xp-msvc9 to fail in mysterious ways that I can't 
understand (the log file was no help).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 19:20:47 +00:00
Bill Wendling
ebd3e5f4cc Early exit with simple checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 19:06:58 +00:00
Bill Wendling
de49f360ec Auto-upgrade the magic ".llvm.eh.catch.all.value" global to 
"llvm.eh.catch.all.value". Only the name needs to be changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 18:51:56 +00:00
Bob Wilson
979927ab26 Calculate the number of VLDM/VSTM registers by subtracting the number of 
fixed operands from the total number of operands (including the variadic ones).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 18:25:35 +00:00
Owen Anderson
8ea298a4e3 Lower the unrolling theshold to 150. Empirical tests indicate that this is a sweet spot in the performance per 
code size increase curve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 17:57:00 +00:00
Dale Johannesen
d6934e4cee x86mmx is 64 bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 17:51:47 +00:00
Jim Grosbach
cc38399ea9 add a comment explicitly calling out that allocation orders may include 
reserved regs and that register allocators need to explicitly check for
them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 17:51:34 +00:00
Bill Wendling
81781ed939 Mark the sse_load_f32 and sse_load_f64 load patterns as having memoperands so 
that the memoperands are properly set after DAG building and general mucking
about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 10:34:22 +00:00
Bill Wendling
c8714bb144 Reword since this may not be a bug but intended behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 10:31:11 +00:00
NAKAMURA Takumi
a64eb8357e Makefile.rules: LOADABLE_MODULE/Win32: "all" components may be linked 
only when ENABLE_SHARED=1.

Loadable module for Win32 requires all symbols resolved for linking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 06:27:02 +00:00
NAKAMURA Takumi
49c193cc74 Don't build redundant libLLVMgold.a. 
Building archive would be executed due to definition of BUILD_ARCHIVE,
even if BUILD_ARCHIVE = "0".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113578 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 06:26:57 +00:00
Evan Cheng
3dc0bb3afd Fix test so it passes on non-Darwin hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 06:20:01 +00:00
Bob Wilson
efe7d9a12f Fix merging base-updates for VLDM/VSTM: Before I switched these instructions 
to use AddrMode4, there was a count of the registers stored in one of the
operands.  I changed that to just count the operands but forgot to adjust for
the size of D registers.  This was noticed by Evan as a performance problem
but it is a potential correctness bug as well, since it is possible that this
could merge a base update with a non-matching immediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 05:15:04 +00:00
Evan Cheng
3ef1c8759a Teach if-converter to be more careful with predicating instructions that would 
take multiple cycles to decode.
For the current if-converter clients (actually only ARM), the instructions that
are predicated on false are not nops. They would still take machine cycles to
decode. Micro-coded instructions such as LDM / STM can potentially take multiple
cycles to decode. If-converter should take treat them as non-micro-coded
simple instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 01:29:16 +00:00
Eric Christopher
920a2089d9 Fix build error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113566 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 00:35:09 +00:00
Eric Christopher
db12b2ba9c Update comments, reorganize some code, rename variables to be 
more clear.  No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 00:34:35 +00:00
Eric Christopher
238bb16251 64-bit fp loads can come straight out of the constant pool, not as 
bad as I'd thought.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113561 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 23:50:00 +00:00
Dan Gohman
70c2fc0823 Discard metadata produced by LLVM 2.7. The value enumeration it used 
is different from what the code now uses in a two ways: NamedMDNodes
were considered Values and included in the numbering, and the
function-local metadata counter wasn't reset between functions.

The later problem breaks lazy deserialization, so instead of trying
to emulate the old numbering, just drop the old metadata. The only
in-tree use case is debug info with LTO, where the QOI loss is
considered acceptable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 23:12:39 +00:00
Daniel Dunbar
1ab6f2fa7a llvm-mc: Don't crash when using -n and we see a directive before the initial section. 
- This is annoying, because we have to scatter this check everywhere that could emit real data, but I see no better solution.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113552 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 22:42:59 +00:00
Daniel Dunbar
93bd4d1e6b llvm-mc: Make sure we exit != 0 if any errors are encountered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 22:42:56 +00:00
Jakob Stoklund Olesen
61ca48e0da XFAIL test under valgrind. It is not really our problem if sh is leaking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113550 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 22:02:13 +00:00
Eric Christopher
9ee4ce2f91 SIToFP and FPToSI conversions work only on fp-reg to fp-reg. Move 
some data around and implement a couple of move routines to do this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 21:44:45 +00:00
Dan Gohman
e983438746 MDNodes are not Constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:54:24 +00:00
Dan Gohman
3da076ffef Print invalid metadata references as <badref>, for consistency with 
regular value references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:53:58 +00:00
Eric Christopher
aa3ace10c1 New "move to fp reg" routine. Use it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113537 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:49:25 +00:00
Eric Christopher
ef2fdd2141 "Strike that, reverse it." -- Mr. Wonka. 
Truncate when truncating, extend when extending.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113536 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:36:19 +00:00
Owen Anderson
f9a26b89f8 What the loop unroller cares about, rather than just not unrolling loops with calls, is 
not unrolling loops that contain calls that would be better off getting inlined.  This mostly
comes up when an interleaved devirtualization pass has devirtualized a call which the inliner
will inline on a future pass.  Thus, rather than blocking all loops containing calls, add
a metric for "inline candidate calls" and block loops containing those instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113535 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:32:23 +00:00
Eric Christopher
ce07b5458d Add FPTrunc, fix some bugs where I forgot to update the value map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113533 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:26:31 +00:00
Owen Anderson
547462b98c Revert r113439, which relaxed the requirement that loops containing calls cannot be unrolled. After some discussion, 
there seems to be a better way to achieve the same effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:02:23 +00:00
Owen Anderson
cc443c37ee r113526 introduced an unintended change to the loop unrolling threshold. Revert it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 19:11:57 +00:00
Owen Anderson
20672e48b3 Fix typo in code to cap the loop code size reduction calculation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 19:08:59 +00:00
Owen Anderson
6add2fbb69 Use code-size reduction metrics to estimate the amount of savings we'll get when we unroll a loop. 
Next step is to recalculate the threshold values given this new heuristic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 19:07:31 +00:00
Eric Christopher
9a040492f7 Basic FP->Int, Int->FP conversions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:54:59 +00:00
Bruno Cardoso Lopes
ae4f7421c0 Add one more pattern to fallback movddup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113522 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:48:34 +00:00
Dan Gohman
c8ddbdabb6 Extend the getDependence query with support for PHI translation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:37:31 +00:00
Dan Gohman
e744541788 Add a getPointerOperand() helper function to VAArgInst, for consistency 
with LoadInst and StoreInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:32:40 +00:00
Evan Cheng
5f54ce3473 For each instruction itinerary class, specify the number of micro-ops each 
instruction in the class would be decoded to. Or zero if the number of
uOPs must be determined dynamically.

This will be used to determine the cost-effectiveness of predicating a
micro-coded instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:18:55 +00:00
Dan Gohman
c48bf0c394 Fix this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:04:22 +00:00
Benjamin Kramer
5e492e8d42 MCELF: Write relocation fragments in the right endian. 
- This code is gross, but does the job for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:01:29 +00:00