6e822459ed
Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done.
...
llvm-svn: 102554
2010-04-28 23:08:54 +00:00
669064a772
fix this to work with objdir != srcdir
...
llvm-svn: 102547
2010-04-28 22:34:35 +00:00
2288ef6c33
Fix comment.
...
llvm-svn: 102545
2010-04-28 22:23:46 +00:00
8d6d94f493
Test for llvm-gcc checkin 102543.
...
llvm-svn: 102544
2010-04-28 22:17:33 +00:00
c892b6dbb0
Add an option to the Apple-style build to control whether libLTO.dylib should
...
be installed. Disable it by default.
llvm-svn: 102531
2010-04-28 21:08:01 +00:00
04cbcca319
Add sizes non-floating point versions for the eh sjlj intrinsic expansions.
...
rdar://7895451
llvm-svn: 102526
2010-04-28 20:33:09 +00:00
4c18a3ac80
Update tests. Now DBG_VALUE instruction is created only if alloca corresponding to llvm.dbg.declare is missing.
...
llvm-svn: 102524
2010-04-28 20:27:48 +00:00
ee3576e8f1
declare targets with (void) instead of () since this is a C header.
...
Patch by Lars R in PR6961.
llvm-svn: 102523
2010-04-28 20:24:45 +00:00
450e29cb4c
fix PR6112 - When globalopt (or any other pass) does RAUW(@G, %G),
...
metadata references in non-function-local MDNodes should drop to
null.
llvm-svn: 102519
2010-04-28 20:16:12 +00:00
d4d1a51895
Pretty print DBG_VALUE machine instructions.
...
Before:
DBG_VALUE %RSI, 0, !-1; dbg:SimpleRegisterCoalescing.cpp:2707
Now:
DBG_VALUE %RSI, 0, !"this"; dbg:SimpleRegisterCoalescing.cpp:2707
llvm-svn: 102518
2010-04-28 20:03:13 +00:00
08e9e72fa9
Rework global alignment computation again. Now we do round up
...
alignment of globals to the preferred alignment, but only when
there is no section specified on the global (by far the common
case).
llvm-svn: 102515
2010-04-28 19:58:07 +00:00
888c17073a
While lowering dbg_declare, emit DBG_VALUE machine instruction if alloca matching llvm.dbg.declare intrinsic is missing.
...
llvm-svn: 102513
2010-04-28 19:27:33 +00:00
06e7242d32
Recompute kill flags from live intervals after coalescing instead of trying to
...
update them. Computing kill flags is notoriously difficult, and the coalescer
would get it wrong sometimes, and it would completely skip physical registers.
Now we simply remove kill flags based on the live intervals after coalescing.
This is a few percent slower, but now we get correct kill flags for physical
registers after coalescing.
llvm-svn: 102510
2010-04-28 18:28:39 +00:00
96fad31694
Teach X86FloatingPoint that a register can be killed multiple times by the same
...
instruction.
This instruction would crash the pass:
INLINEASM <es:foo $0 $1>, 9, %FP0<kill>, 9, %FP0<kill>, 14, %EFLAGS<earlyclobber,def,dead>
Now it doesn't.
llvm-svn: 102509
2010-04-28 18:28:37 +00:00
7ebb5e4cb0
Undo most of my previous whitespace fix. I think I like it better this way
...
after all.
llvm-svn: 102508
2010-04-28 18:18:36 +00:00
a2dbebc431
Fix inconsistent use of HOSTS and TARGETS variables.
...
llvm-svn: 102505
2010-04-28 18:06:27 +00:00
5f1074adde
Fix whitespace.
...
llvm-svn: 102504
2010-04-28 17:50:03 +00:00
050df1b8de
Enable i16 to i32 promotion by default.
...
llvm-svn: 102493
2010-04-28 08:30:49 +00:00
f100557c9a
Try operation promotion only if regular dag combine and target-specific ones failed to do anything.
...
llvm-svn: 102492
2010-04-28 07:10:39 +00:00
d21f564543
Unbreak the build. Only form shld / shrd after legalization.
...
llvm-svn: 102488
2010-04-28 02:25:18 +00:00
fe420adde0
Update tests.
...
llvm-svn: 102487
2010-04-28 01:53:13 +00:00
50c9431203
Emit debug info for byval parameters.
...
llvm-svn: 102486
2010-04-28 01:39:28 +00:00
347e3b8f15
Rather than having a ton of patterns for double shift instructions, e.g. SHLD16rrCL, just perform custom dag combine to form x86 specific dag so they match to the same pattern. This also makes sure later dag combine do not cause isel to miss them (e.g. promoting i16 to i32).
...
llvm-svn: 102485
2010-04-28 01:18:01 +00:00
a3facc5cb5
further simplify EmitAlignment by eliminating the
...
ForcedAlignBits argument, tweaking the single client of it.
llvm-svn: 102484
2010-04-28 01:08:40 +00:00
72bdee4c10
remove a dead argument to EmitAlignment.
...
llvm-svn: 102483
2010-04-28 01:06:02 +00:00
9e06e53fc6
remove some default arguments to EmitAlignment.
...
llvm-svn: 102482
2010-04-28 01:05:45 +00:00
173b2b9d05
Refactor.
...
llvm-svn: 102481
2010-04-28 01:03:09 +00:00
2f1ae06c45
Rewrite the section on trap values to contain a generic description
...
of dependence and define trap values in terms of dependence, instead
of trying to cover the concept with a flurry of ad-hoc rules.
The dependence model isn't complete yet, but it's already much more
rigorous than the description it replaces.
llvm-svn: 102479
2010-04-28 00:49:41 +00:00
61110aed26
Fix spelling errors.
...
llvm-svn: 102478
2010-04-28 00:36:01 +00:00
c0458f1a40
Tweak x86 INC/DEC generation to look for CopyToReg or SETCC. Radar 7866163.
...
llvm-svn: 102477
2010-04-28 00:35:10 +00:00
4bd85e47bf
further clarify alignment of globals, fix instcombine
...
to not increase the alignment of globals with an assigned
alignment and section.
llvm-svn: 102476
2010-04-28 00:31:12 +00:00
78e00bcb76
improve the global variable alignment description.
...
it is not generally valid for targets to overalign
them when an alignment is specified.
llvm-svn: 102474
2010-04-28 00:13:42 +00:00
12f6855f85
Use MachineOperand::is* predicates.
...
llvm-svn: 102472
2010-04-27 22:24:37 +00:00
cfc76fdaf1
Use isReg(), isImm() and isFPImm().
...
llvm-svn: 102470
2010-04-27 22:04:41 +00:00
1f34c2727d
Check operand type first.
...
llvm-svn: 102468
2010-04-27 21:49:04 +00:00
9e3a4ef089
Fix obvious typos.
...
llvm-svn: 102467
2010-04-27 21:46:03 +00:00
1a0bbe25e3
Ignore DBG_VALUE instructions that points to undef values.
...
llvm-svn: 102463
2010-04-27 20:54:45 +00:00
3b928af28f
SRA promotion is also not free.
...
llvm-svn: 102456
2010-04-27 19:48:31 +00:00
e813690b7a
- When legal, promote a load to zextload rather than ext load.
...
- Catch more further dag combine opportunities as result of operand promotion, e.g. (i32 anyext (i16 trunc (i32 x))) -> (i32 x)
llvm-svn: 102455
2010-04-27 19:48:13 +00:00
6c74a872a8
Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
...
This patch fixes bug (PR6894) introduced by previous version of this patch.
llvm-svn: 102454
2010-04-27 19:46:33 +00:00
eb828b6391
Do not count kill, implicit_def instructions as printed instructions.
...
llvm-svn: 102453
2010-04-27 19:38:45 +00:00
64d43d80be
round zero-byte .zerofill directives up to 1 byte. This
...
should fix some "g++.dg-struct-layout-1" failures,
rdar://7886017
llvm-svn: 102421
2010-04-27 07:41:44 +00:00
a3cc83bc82
fix wordo
...
llvm-svn: 102418
2010-04-27 07:28:11 +00:00
0260a975ba
remove some comments.
...
llvm-svn: 102417
2010-04-27 06:57:10 +00:00
eb61a7d616
Revert a small part of 102372; this fixes at least one
...
of the dbg testsuite regressions. I don't think this is
really the right fix; this change exposed an existing problem
upstream somewhere.
llvm-svn: 102410
2010-04-27 02:10:05 +00:00
633c48ec1d
r98363 deleted a '!' when cleaning up whitespace. This caused globals which are
...
*not* declarations to *not* be placed in the "preserve" list.
<rdar://problem/7870735>
llvm-svn: 102405
2010-04-27 00:55:25 +00:00
022e7b900f
Un-XFAIL this on ppc. My enabling of dbg_declare handling
...
in ISel fixed it.
llvm-svn: 102404
2010-04-27 00:01:42 +00:00
44a27efdf9
Fix a problem that lower invoke has with allocas (PR6694), and
...
add a version of createLowerInvokePass that allows the client
to specify whether it wants "expensive" or "cheap" lowering.
Patch by Alex Mac!
llvm-svn: 102402
2010-04-26 23:49:32 +00:00
3af635a296
add a comment in verbose-asm mode indicating why a noop is being generated.
...
llvm-svn: 102401
2010-04-26 23:41:43 +00:00
6a5e706e3c
on darwin empty functions need to codegen into something of non-zero length,
...
otherwise labels get incorrectly merged. We handled this by emitting a
".byte 0", but this isn't correct on thumb/arm targets where the text segment
needs to be a multiple of 2/4 bytes. Handle this by emitting a noop. This
is more gross than it should be because arm/ppc are not fully mc'ized yet.
This fixes rdar://7908505
llvm-svn: 102400
2010-04-26 23:37:21 +00:00
b8b85c1ddb
Integrate Jeffery Yasskin's suggestions with respect to
...
traps flowing through memory references, add some text to
better cover phi nodes and externally-visible side effects,
add an example of instructions being control-dependent
on a trap value, and reword some of the existing trap rules.
llvm-svn: 102399
2010-04-26 23:36:52 +00:00
25f85947a3
Handle register-to-register copies within the tGPR class.
...
Radar 7896289
llvm-svn: 102396
2010-04-26 23:20:08 +00:00
a1e343095f
Avoid adding a null MD node operand, which crashes with "-debug" when trying
...
to print the operand.
llvm-svn: 102395
2010-04-26 22:56:56 +00:00
bd798ce8dd
Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.
...
llvm-svn: 102394
2010-04-26 22:54:28 +00:00
58b0470592
When checking whether the special handling for an addrec increment which
...
doesn't dominate the header is needed, don't check whether the increment
expression has computable loop evolution. While the operands of an
addrec are required to be loop-invariant, they're not required to
dominate any part of the loop. This fixes PR6914.
llvm-svn: 102389
2010-04-26 21:46:36 +00:00
d07d2f9774
Add a comment to this test.
...
llvm-svn: 102387
2010-04-26 21:37:43 +00:00
5d284ae8a0
Consolidate the description of volatile operations, now that some of the
...
intrinsics have volatile semantics in addition to the load and store
instructions.
llvm-svn: 102384
2010-04-26 21:21:24 +00:00
48a2588be4
Branching or switching on trap transfers imminent undefined behavior
...
onto control-dependent instructions.
llvm-svn: 102381
2010-04-26 20:54:53 +00:00
59a438560c
Remove crufty comments.
...
llvm-svn: 102380
2010-04-26 20:48:54 +00:00
137d90c763
add some typewriter tags
...
llvm-svn: 102378
2010-04-26 20:46:03 +00:00
b2a709be07
Fix HTML errors that Jeffery Yasskin noticed.
...
llvm-svn: 102376
2010-04-26 20:21:21 +00:00
91358585d7
Handle target-specific form of DBG_VALUE in AsmPrinter.
...
llvm-svn: 102373
2010-04-26 20:07:31 +00:00
e098352ed1
Add DBG_VALUE handling for byval parameters; this
...
produces a comment on targets that support it, but
the Dwarf writer is not hooked up yet.
llvm-svn: 102372
2010-04-26 20:06:49 +00:00
bc41cfa78f
Add PPC AsmPrinter handling for target-specific form of
...
DBG_VALUE, and a cautionary comment.
llvm-svn: 102371
2010-04-26 20:05:01 +00:00
0e6fc61f21
Insert dbg_value instructions for function entry block liveins (i.e. function arguments).
...
llvm-svn: 102368
2010-04-26 19:16:00 +00:00
6e45f1d1ff
Promoting 16-bit cmp / test aren't free. Don't do it.
...
llvm-svn: 102366
2010-04-26 19:06:11 +00:00
f740a8ceeb
fix PR6921 a different way. Intead of increasing the
...
alignment of globals with a specified alignment, we fix
common variables to obey their alignment. Add a comment
explaining why this behavior is important.
llvm-svn: 102365
2010-04-26 18:46:46 +00:00
c72d8a7dad
Re-enable 102323 with fix: do not update dbg_value's with incorrect frame indices when the live interval are being re-materialized.
...
llvm-svn: 102361
2010-04-26 18:37:21 +00:00
e80442aa6d
Revert r102300/102301, which serious broke objc apps.
...
llvm-svn: 102359
2010-04-26 18:30:45 +00:00
87aa2243e2
fix PR6940: sitofp(undef) folds to 0.0, not undef.
...
llvm-svn: 102358
2010-04-26 18:21:23 +00:00
5de7f6e02b
wrap some long lines.
...
llvm-svn: 102354
2010-04-26 17:42:18 +00:00
d561daf520
Update MachineSSAUpdater with the same changes I made for the IR-level
...
SSAUpdater. I'm going to try to refactor this to share most of the code
between them.
llvm-svn: 102353
2010-04-26 17:40:49 +00:00
df85c89c45
add GHC, thanks to David Terei
...
llvm-svn: 102352
2010-04-26 17:38:10 +00:00
5ad3cc1d5e
Temporary disable spiller modifying dbg_value. It's breaking build.
...
llvm-svn: 102327
2010-04-26 08:24:07 +00:00
1ff9d1b63e
Remove a redundant comment.
...
llvm-svn: 102326
2010-04-26 08:16:57 +00:00
f19bd4ebba
Add PPC specific emitFrameIndexDebugValue.
...
llvm-svn: 102325
2010-04-26 07:39:36 +00:00
bcb99ecc18
Add ARM specific emitFrameIndexDebugValue.
...
llvm-svn: 102324
2010-04-26 07:39:25 +00:00
ed69b382ea
- Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue.
...
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.
llvm-svn: 102323
2010-04-26 07:38:55 +00:00
582565e991
Stop abusing EmitInstrWithCustomInserter for target-dependent
...
form of DEBUG_VALUE, as it doesn't have reasonable default
behavior for unsupported targets. Add a new hook instead.
No functional change.
llvm-svn: 102320
2010-04-25 21:33:54 +00:00
60084b176e
another typo pointed out by sajd
...
llvm-svn: 102319
2010-04-25 21:30:22 +00:00
c1670318e2
fix two typos pointed out by sajd
...
llvm-svn: 102318
2010-04-25 21:27:54 +00:00
1fc01985a3
Add comment re byval args. Doesn't actually work this way yet.
...
xs
llvm-svn: 102316
2010-04-25 21:03:54 +00:00
17dff47e22
Added bullet about GNUstep Objective-C ABI support to the Clang section of the release notes.
...
llvm-svn: 102309
2010-04-25 19:13:33 +00:00
4d7b4b4d15
testcase for PR6913
...
llvm-svn: 102303
2010-04-25 05:51:14 +00:00
6ac247a092
this passes now.
...
llvm-svn: 102301
2010-04-25 05:49:31 +00:00
386a220f70
Fix PR6921: globals were not getting correctly rounded up to their
...
preferred alignment unless they were common or some other special
case.
llvm-svn: 102300
2010-04-25 05:30:43 +00:00
9deb87a996
silence a warning, patch by "mike".
...
llvm-svn: 102297
2010-04-25 04:44:26 +00:00
b34ffe36ae
remove #if 1's.
...
llvm-svn: 102296
2010-04-25 04:43:02 +00:00
a1c94049c2
Fix an autoconf bug: The second argument to AC_LANG_PROGRAM is code that
...
gets placed inside a main function, and should not itself be a main
function. This is silently hidden in GCC-hosted builds because the
inner main looks like a nested function declaration, which GCC supports.
In builds with compilers which do not support nested functions (by default),
this was causing an error, which caused these autoconf checks to fail,
leaving their options disabled.
This fixes test/Feature/load_module.ll on x86_64-unknown-linux-gnu
llvm-gcc selfhost builds, among other things.
This also includes a regenerated configure, as the diff is small and telling.
llvm-svn: 102288
2010-04-25 00:12:20 +00:00
283a350f4d
PHI nodes also do not necessarily return trap with a trap operand.
...
llvm-svn: 102278
2010-04-24 22:15:58 +00:00
9a7459af1d
Fix typo.
...
llvm-svn: 102276
2010-04-24 22:01:40 +00:00
20f5e974e4
Use provided llvm-defined variables instead of twisting user-controlled knobs.
...
No visible change.
llvm-svn: 102240
2010-04-24 05:07:24 +00:00
3afcd7cd80
Don't touch CXXFLAGS. If it's set in the environment then sub-makes will see
...
the variable that we set as though it came from the user. Fixes PR6835.
llvm-svn: 102239
2010-04-24 04:56:34 +00:00
a02d0e7d6b
Avoid promoting a i16 node if it would eliminate a (store (op (load))) opportunity.
...
llvm-svn: 102237
2010-04-24 04:44:57 +00:00
0abb54d631
When a load operand is promoted to an extload, replace other uses with uses of extload result truncated.
...
llvm-svn: 102236
2010-04-24 04:43:44 +00:00
534ba376f6
Generalize LSR's OptimizeMax to handle the new kinds of max expressions
...
that indvars may use, now that indvars is recognizing le and ge loops.
llvm-svn: 102235
2010-04-24 03:13:44 +00:00
f33bac3afe
ScalarEvolution support for <= and >= loops.
...
Also, generalize ScalarEvolutions's min and max recognition to handle
some new forms of min and max that this change makes more common.
llvm-svn: 102234
2010-04-24 03:09:42 +00:00
36cce7e0dd
Use SimplifyICmpOperands in isKnownPredicate too.
...
llvm-svn: 102233
2010-04-24 01:38:36 +00:00
3673aa1a51
Update isImpliedCond to use the new SimplifyICmpOperands utility.
...
llvm-svn: 102232
2010-04-24 01:34:53 +00:00
48ff3cf63b
Add a new utility function SimplifyICmpOperands. Much of this code is
...
refactored out of ScalarEvolution::isImpliedCond, which will be updated
to use this new utility routine soon.
llvm-svn: 102229
2010-04-24 01:28:42 +00:00
Evan Cheng