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Author SHA1 Message Date
Eli Friedman
3aa2fe389f Back out r131444 and r131438; they're breaking nightly tests. I'll look into 
it more tomorrow.

llvm-svn: 131451
 2011-05-17 02:36:59 +00:00
Eli Friedman
8c4de16d2b Add x86 fast-isel for calls returning first-class aggregates. rdar://9435872. 
llvm-svn: 131438
 2011-05-17 00:13:47 +00:00
Owen Anderson
ba8b3af7d8 @llvm.lifetime.begin acts as a load, not @llvm.lifetime.end. 
llvm-svn: 131437
 2011-05-17 00:05:49 +00:00
Jakob Stoklund Olesen
16f11212fc Teach LiveInterval::isZeroLength about null SlotIndexes. 
When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.

This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic.  Prioritizing
register allocation according to spill weight can cause more registers to be
used.

llvm-svn: 131436
 2011-05-16 23:50:05 +00:00
Jim Grosbach
d7352e9b02 Kill some dead code. 
llvm-svn: 131431
 2011-05-16 22:24:07 +00:00
Dan Gohman
9a55240376 Delete unused variables. 
llvm-svn: 131430
 2011-05-16 22:19:54 +00:00
Dan Gohman
9ea3bcc685 Trim #includes. 
llvm-svn: 131429
 2011-05-16 22:14:50 +00:00
Dan Gohman
2d7dc7849f Fix whitespace and 80-column violations. 
llvm-svn: 131428
 2011-05-16 22:09:53 +00:00
Devang Patel
8cf3c94ae5 There is no need to force DebugLoc on a PHI at this point. 
llvm-svn: 131427
 2011-05-16 22:05:03 +00:00
Jim Grosbach
59a8c1aa5b Track how many insns fast-isel successfully selects as well as how many it 
misses.

llvm-svn: 131426
 2011-05-16 21:51:07 +00:00
Eli Friedman
23e7691f59 Remove dead code. Fix associated test to use FileCheck. 
llvm-svn: 131424
 2011-05-16 21:28:22 +00:00
Devang Patel
9f871794b6 Preserve debug info for unused zero extended boolean argument. 
Radar 9422775.

llvm-svn: 131422
 2011-05-16 21:24:05 +00:00
Charles Davis
173b0d324a Add a method I forgot in the last commit. Don't worry, this one passed 
self-host :).

llvm-svn: 131421
 2011-05-16 21:13:58 +00:00
Eli Friedman
cb60e2293f Make fast-isel work correctly s/uadd.with.overflow intrinsics. 
llvm-svn: 131420
 2011-05-16 21:06:17 +00:00
Eli Friedman
bd237ec411 Fix silly typo. 
llvm-svn: 131419
 2011-05-16 20:34:53 +00:00
Eli Friedman
5f1b7e4153 Basic fast-isel of extractvalue. Not too helpful on its own, given the IR clang generates for cases like this, but it should become more useful soon. 
llvm-svn: 131417
 2011-05-16 20:27:46 +00:00
Jason W Kim
4b3c43cf90 Add a FIXME reminder to remove ForceARMElfPIC switch. 
llvm-svn: 131411
 2011-05-16 16:35:21 +00:00
Rafael Espindola
e0b15205c1 sets bit 0 of the function address of thumb function in .symtab 
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)

Patch by Koan-Sin Tan!

llvm-svn: 131406
 2011-05-16 16:17:21 +00:00
Rafael Espindola
1f7c831e4f Extra refactoring noticed by Eli Friedman. 
llvm-svn: 131405
 2011-05-16 15:48:45 +00:00
Rafael Espindola
113d944ce4 Don't do tail calls in a function that call setjmp. The stack might be 
corrupted when setjmp returns again.

llvm-svn: 131399
 2011-05-16 03:05:33 +00:00
Charles Davis
576f65b4b2 Fix copy-pasto. 
llvm-svn: 131384
 2011-05-15 17:28:27 +00:00
Charles Davis
900df11077 Add stub methods to MCStreamer for emitting Win64 exception-handling 
information.

llvm-svn: 131382
 2011-05-15 17:20:01 +00:00
Benjamin Kramer
5943d0a3ee SimplifyCFG: Use ComputeMaskedBits to prune dead cases from switch instructions. 
llvm-svn: 131345
 2011-05-14 15:57:25 +00:00
Stuart Hastings
725bd9a3a1 Avoid combining GEPs that might overflow at runtime. 
rdar://problem/9267970

Patch by Julien Lerouge!

llvm-svn: 131339
 2011-05-14 05:55:10 +00:00
Eli Friedman
559f908ca7 Fix a FIXME by moving the fast-isel implementation of the objectsize intrinsic from the x86 code to the generic code. 
llvm-svn: 131332
 2011-05-14 00:47:51 +00:00
Rafael Espindola
98372d430c Don't produce a vmovntdq if we don't have AVX support. 
llvm-svn: 131330
 2011-05-14 00:30:01 +00:00
Eli Friedman
841249aeb2 Zap useless code; this hasn't done anything useful since fast-isel switched to being bottom-up (a very long time ago). 
llvm-svn: 131329
 2011-05-14 00:19:32 +00:00
Jim Grosbach
86489a32cf Be a bit more permissive about symbols we don't understand. Just skip them 
rather than throwing an error.

llvm-svn: 131322
 2011-05-13 23:11:30 +00:00
Dylan Noblesmith
e3f823351d ExecutionEngine: move createJIT() definition (v2) 
As an ExecutionEngine class function, its definition
really belongs in ExecutionEngine.cpp, not JIT.cpp.

llvm-svn: 131320
 2011-05-13 22:02:53 +00:00
Dylan Noblesmith
7181ae008c ExecutionEngine: push TargetMachine creation into clients (v2) 
In particular, into EngineBuilder. This should only impact
the private API between the EE and EB classes, not external
clients, since JITCtor and MCJITCtor are both protected members.

llvm-svn: 131317
 2011-05-13 21:51:29 +00:00
Dylan Noblesmith
2af2081287 ExecutionEngine: fix JIT/MCJIT selectTarget() duplication (v2) 
This prepares for making JITCtor/MCJITCtor take a
TargetMachine* directly from clients like EngineBuilder.

llvm-svn: 131316
 2011-05-13 21:36:16 +00:00
Jim Grosbach
ed5d966802 Teach the RtDyld to tell the memory manager about how much space a function 
actually takes rather than how much memory was allocated for it. This
is more accurate and should help the manager pack things more effectively.

llvm-svn: 131305
 2011-05-13 20:12:14 +00:00
Rafael Espindola
95d9ad78ea Make codegen able to handle values of empty types. This is one way 
to fix PR9900. I will keep it open until sable is able to comment on it.

llvm-svn: 131294
 2011-05-13 15:18:06 +00:00
Julien Lerouge
b2c1721752 Fix a source of non determinism in FindUsedTypes, use a SetVector instead of a 
set.

rdar://9423996

llvm-svn: 131283
 2011-05-13 05:20:42 +00:00
Andrew Trick
9bf6279f98 Convert SimplifyIVUsers into a worklist instead of a single pass over 
the users.

llvm-svn: 131277
 2011-05-13 01:12:21 +00:00
Stuart Hastings
5fb280fd39 Since I can't reproduce the failures from 131261, re-trying with a 
simplified version.  <rdar://problem/9298790>

llvm-svn: 131274
 2011-05-13 00:51:54 +00:00
Stuart Hastings
b362a9bcc6 Revert 131266 and 131261 due to buildbot complaints. 
rdar://problem/9298790

llvm-svn: 131269
 2011-05-13 00:15:17 +00:00
Stuart Hastings
d106d72681 Non-fast-isel followup to 129634; correctly handle branches controlled 
by non-CMP expressions.  The executable test case (129821) would test
this as well, if we had an "-O0 -disable-arm-fast-isel" LLVM-GCC
tester.  Alas, the ARM assembly would be very difficult to check with
FileCheck.

The thumb2-cbnz.ll test is affected; it generates larger code (tst.w
vs. cmp #0), but I believe the new version is correct.
rdar://problem/9298790

llvm-svn: 131261
 2011-05-12 23:36:41 +00:00
Evan Cheng
43393670c9 Update comment. 
llvm-svn: 131258
 2011-05-12 22:35:48 +00:00
Devang Patel
dd08ae41c6 Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name. 
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g

llvm-svn: 131244
 2011-05-12 21:29:42 +00:00
Jim Grosbach
dc7e74edfa MCJIT section loading should just skip non-text sections rather than 
erroring out completely. Some modules produce sections that aren't referenced,
so it's friendlier to clients like LLDB to just skip them, at least for now.

llvm-svn: 131243
 2011-05-12 21:21:16 +00:00
Evan Cheng
f3eb9e3262 Re-enable branchfolding common code hoisting optimization. Fixed a liveness test bug and also taught it to update liveins. 
llvm-svn: 131241
 2011-05-12 20:30:01 +00:00
Devang Patel
b865dd6a20 Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension. 
llvm-svn: 131238
 2011-05-12 19:06:16 +00:00
Evan Cheng
2c6e581865 Temporarily disable the transformation. It's breaking 186.crafty in some configuration. 
llvm-svn: 131235
 2011-05-12 18:44:58 +00:00
Jim Grosbach
245420ff79 The MCJIT memory manager needs to initialize its Module member. 
llvm-svn: 131234
 2011-05-12 18:21:23 +00:00
Akira Hatanaka
a57b77b65f Fix setting of isCommutable flag. 
llvm-svn: 131233
 2011-05-12 17:42:08 +00:00
Evan Cheng
5ff60c7364 Re-commit 131172 with fix. MachineInstr identity checks should check dead 
markers. In some cases a register def is dead on one path, but not on
another.

This is passing Clang self-hosting.

llvm-svn: 131214
 2011-05-12 00:56:58 +00:00
Andrew Trick
3e6beb9889 indvars: Added SimplifyIVUsers. 
Interleave IV simplifications. Currently involves EliminateComparison
and EliminateRemainder. Next I'll add EliminateExtend.

llvm-svn: 131210
 2011-05-12 00:04:28 +00:00
Matt Beaumont-Gay
20dbed0a8b Remove an unused variable and move a couple others inside DEBUG. 
llvm-svn: 131208
 2011-05-11 23:34:51 +00:00
Jason W Kim
f6c2c6a38e Address the last bit of relocation flag related divergence betweeen 
LLVM and binutils.

With this patch, there are no functional differences between the .o
produced directly from LLVM versus the .s to .o via GNU as, for relocation tags
at least, for both PIC and non-PIC modes.

Because some non-PIC reloc tags are used (legally) on PIC, so IsPCRel flag is
necessary but not sufficient to determine whether the overall codegen mode is
PIC or not. Why is this necessary? There is an incompatibility of how relocs
are emitted in the .rodata section.  Binutils PIC likes to emit certain relocs
as section relative offsets.  Non-PIC does not do this.

So I added a hidden switch on the ELFObjectwriter "-arm-elf-force-pic" which
forces the objectwriter to pretend that all relocs are for PIC mode.


Todo: Activate ForceARMElfPIC to true if -relocation-model=pic is selected
on llc.

Todo: There are probably more issues for PIC mode on ARM/MC/ELF...

Todo: Existing tests in MC/ARM/elf-reloc*.ll need to be converted over to .s 
tests as well as expanded to cover the gamut.

llvm-svn: 131205
 2011-05-11 22:53:06 +00:00