fd81254190
Move PHINodesToUpdate out of SelectionDAGBuilder and into
...
FunctionLoweringInfo, as it isn't SelectionDAG-specific. This isn't
completely natural, as PHI node state is not per-function but rather
per-basic-block, however there's currently no other convenient
per-basic-block state to group it with.
llvm-svn: 102109
2010-04-22 19:55:20 +00:00
0fde4aeedd
Rename InsnAfterLabelMap and InsnBeforeLabelMap.
...
llvm-svn: 102106
2010-04-22 18:43:35 +00:00
53f530d44c
Keep track of MCSymbol used to mark beginning of a function.
...
llvm-svn: 102104
2010-04-22 18:39:21 +00:00
bae14a1cab
At this point Start and End are not null.
...
llvm-svn: 102102
2010-04-22 18:28:58 +00:00
14b1d758c6
Run LiveVariables instead of computing liveness locally in -regalloc=fast.
...
This actually makes everything slower, but the plan is to have isel add <kill>
flags the way it is already adding <dead> flags. Then LiveVariables can be
removed again.
When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as
fast as -regalloc=local.
llvm-svn: 102034
2010-04-21 23:18:07 +00:00
02e816b317
Do not try to optimize a copy that has already been marked for deletion.
...
llvm-svn: 102027
2010-04-21 20:57:54 +00:00
1a6e399874
Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.
...
llvm-svn: 102012
2010-04-21 19:08:53 +00:00
8a070a540d
Add fast register allocator, enabled with -regalloc=fast.
...
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.
The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.
llvm-svn: 102006
2010-04-21 18:02:42 +00:00
0940a8085e
Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
...
llvm-svn: 102004
2010-04-21 16:32:19 +00:00
4158a0ff6b
Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
...
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181
llvm-svn: 101984
2010-04-21 03:18:23 +00:00
57c732b032
Add more const qualifiers on TargetMachine and friends.
...
llvm-svn: 101977
2010-04-21 01:34:56 +00:00
cc5e6528a5
Update CMakeLists.txt.
...
llvm-svn: 101976
2010-04-21 01:32:29 +00:00
450aa64fc1
Move several SelectionDAG-independent utility functions out of the
...
SelectionDAG directory and into a new Analysis.cpp file.
llvm-svn: 101975
2010-04-21 01:22:34 +00:00
2034d9f2da
- Clean up some crappy code which deals with coalescing of copies which look at
...
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.
llvm-svn: 101971
2010-04-21 00:44:22 +00:00
4b2ef56ad2
Rewrite machine cse to avoid recursion.
...
llvm-svn: 101964
2010-04-21 00:21:07 +00:00
ad33d33719
Add another variant of this test which found a place where
...
CodeGen's ComputeMaskedBits was being over-conservative when computing
bits for an ADD.
llvm-svn: 101963
2010-04-21 00:19:28 +00:00
0522b90cdb
Because of the EMMS problem, right now we have to support
...
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own. This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)
llvm-svn: 101951
2010-04-20 22:34:09 +00:00
011207a0ae
When MachineLICM is hoisting a physical register after regalloc, make sure the
...
register is not killed in the loop.
This fixes 188.ammp on ARM where the post-ra scheduler would grab a register
that looked available but wasn't.
A testcase would be huge and fragile, sorry.
llvm-svn: 101930
2010-04-20 18:45:47 +00:00
4019d571d9
Typo.
...
llvm-svn: 101914
2010-04-20 17:27:38 +00:00
950fe784be
Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel
...
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.
llvm-svn: 101906
2010-04-20 15:03:56 +00:00
f41ad478ca
Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since
...
they end up doing nothing.
llvm-svn: 101904
2010-04-20 15:00:41 +00:00
7c845e4ea4
Sink this use_empty() check into isUsedOutsideOfDefiningBlock.
...
llvm-svn: 101902
2010-04-20 14:50:13 +00:00
7b7f0883fe
If a PHI node somehow has debug info, propogate it to the MachineInstr PHI.
...
llvm-svn: 101901
2010-04-20 14:48:02 +00:00
0f055d3f56
Don't iterate through the whole block just to find the PHI nodes.
...
llvm-svn: 101900
2010-04-20 14:46:25 +00:00
27b3d55194
use abstract accessors to CallInst
...
llvm-svn: 101899
2010-04-20 13:13:04 +00:00
5100367ff3
Bill's change in r95336 broke empty aggregates embedded
...
in other types. fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.
This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.
llvm-svn: 101879
2010-04-20 06:20:21 +00:00
0c862a86fa
Delete a redundant return statement.
...
llvm-svn: 101860
2010-04-20 01:58:20 +00:00
467e6c2deb
The visitXOR method can return the same SDNode. If so, we don't want to delete
...
it as it's not dead.
llvm-svn: 101855
2010-04-20 01:25:01 +00:00
eadc04badc
Remove this debug output; it isn't that useful, and it's incomplete
...
in the case where a basic block is split.
llvm-svn: 101850
2010-04-20 00:56:44 +00:00
e450d7444d
Sink DebugLoc handling out of SelectionDAGISel into FastISel and
...
SelectionDAGBuilder, where it doesn't have to be as complicated.
llvm-svn: 101848
2010-04-20 00:48:35 +00:00
3df671a81c
Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp
...
responsible for figuring out what that's supposed to be on its own.
llvm-svn: 101844
2010-04-20 00:37:27 +00:00
ca35aa1122
Reapply the removal of SelectionDAGISel's BB, with a fix for the case
...
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.
llvm-svn: 101843
2010-04-20 00:29:35 +00:00
be2e727a38
Revert 101825, which is causing trouble.
...
llvm-svn: 101832
2010-04-19 23:34:15 +00:00
35bc4d46cb
Make BreakAntiDependencies' SUnits argument const, and make the Begin
...
and End arguments by-value rather than by-reference.
llvm-svn: 101830
2010-04-19 23:11:58 +00:00
8cccc542f6
Eliminate SelectionDAGISel's "current block" member. Just pass it as
...
an argument to things that need it.
llvm-svn: 101825
2010-04-19 22:51:14 +00:00
7c0303a059
Eliminate the CurMBB member from SelectionDAGBuilder. For places that
...
need it, just pass around the parent block of the current instruction
explicitly.
llvm-svn: 101822
2010-04-19 22:41:47 +00:00
e19aa5cc52
More progress on promoting i16 operations to i32 for x86. Work in progress.
...
llvm-svn: 101808
2010-04-19 19:29:22 +00:00
1e95790fd4
Give SelectionDAG a TargetMachine too, rather than having it
...
fetch one from the MachineFunction.
llvm-svn: 101807
2010-04-19 19:22:07 +00:00
e7c21a4242
More 80 col violation.
...
llvm-svn: 101806
2010-04-19 19:17:44 +00:00
6188093cca
Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag.
...
llvm-svn: 101805
2010-04-19 19:14:02 +00:00
c334960f16
Code that needs a TargetMachine should have access to one directly, rather
...
than just getting one through a TargetLowering.
llvm-svn: 101802
2010-04-19 19:05:59 +00:00
a91754da67
Move isInTailCallPosition out of SelectionDAGBuilder, as it isn't
...
SelectionDAG-specific.
llvm-svn: 101801
2010-04-19 18:41:46 +00:00
1f0f2142cc
Fix -Wcast-qual warnings.
...
llvm-svn: 101655
2010-04-17 17:42:52 +00:00
53d4a08d2b
Add const qualifiers to TargetLoweringObjectFile usage.
...
llvm-svn: 101640
2010-04-17 16:44:48 +00:00
88f7f6aeda
Use const_cast instead of a C-style cast to cast away const.
...
llvm-svn: 101639
2010-04-17 16:43:55 +00:00
4fee6f3bdd
Start function numbering at 0.
...
llvm-svn: 101638
2010-04-17 16:29:15 +00:00
8422e57baa
Delete now-unnecessary const_casts.
...
llvm-svn: 101637
2010-04-17 15:32:28 +00:00
21cea8ac2e
Use const qualifiers with TargetLowering. This eliminates several
...
const_casts, and it reinforces the design of the Target classes being
immutable.
SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.
And PIC16's AsmPrinter no longer uses TargetLowering.
llvm-svn: 101635
2010-04-17 15:26:15 +00:00
5fdb57cc10
Postra machine licm must add registers defined by loop invariants to *all* of
...
the live-in sets of BBs in the loop. Otherwise later pass may end up using the
registers and override the invariant. rdar://7852937
No reasonablly sized test case possible.
llvm-svn: 101626
2010-04-17 07:07:11 +00:00
4f3aba431e
Fix codegen passes. -disable-ssc shouldn't disable postra machine licm.
...
llvm-svn: 101622
2010-04-17 06:47:47 +00:00
f1bd5fcdb4
More work to allow dag combiner to promote 16-bit ops to 32-bit.
...
llvm-svn: 101621
2010-04-17 06:13:15 +00:00
829c300ce0
Another 80 col violation.
...
llvm-svn: 101620
2010-04-17 06:12:32 +00:00
4e5eb5ae1b
As a temporary workaround for post-RA not handling DebugValue instructions,
...
just remove them all. Radar 7873207 (working around the root problem of
Radar 7759363).
llvm-svn: 101604
2010-04-17 00:49:11 +00:00
71336f213b
Revert "Use a simpler data structure to calculate the least recently used register in RegAllocLocal."
...
This reverts commit 101392. It broke a buildbot.
llvm-svn: 101595
2010-04-17 00:38:36 +00:00
7258dcd77f
Revert 101465, it broke internal OpenGL testing.
...
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.
llvm-svn: 101579
2010-04-16 23:37:20 +00:00
12563b3495
Add support to emit dwarf ranges.
...
llvm-svn: 101575
2010-04-16 23:33:45 +00:00
ae372e2ce0
Use a simpler data structure to calculate the least recently used register in RegAllocLocal.
...
This makes the local register allocator about 20% faster.
llvm-svn: 101574
2010-04-16 23:32:37 +00:00
f037f87bde
(i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test case until -promote-16bit is enabled.
...
llvm-svn: 101551
2010-04-16 22:26:19 +00:00
c4759a5b97
Create a new TargetSelectionDAGInfo class. This will eventually acquire
...
SelectionDAG-specific parts of TargetLowering.
llvm-svn: 101537
2010-04-16 21:12:11 +00:00
4d273f4519
Commit this, which should have accompanied 101531.
...
llvm-svn: 101532
2010-04-16 20:22:43 +00:00
954bd598dd
80 col.
...
llvm-svn: 101501
2010-04-16 17:58:41 +00:00
d6b0a7c075
80 col.
...
llvm-svn: 101500
2010-04-16 17:57:59 +00:00
3a7ee8eead
Avoid creating virtual registers for unused values.
...
llvm-svn: 101480
2010-04-16 17:15:02 +00:00
5664b9f1a9
Fix an assertion string.
...
llvm-svn: 101478
2010-04-16 16:55:18 +00:00
4572a9f479
Fix a comment.
...
llvm-svn: 101477
2010-04-16 16:52:37 +00:00
f375520f7b
reapply r101434
...
with a fix for self-hosting
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101465
2010-04-16 15:33:14 +00:00
929f3c0927
The JIT calls TidyLandingPads to tidy up the landing pads. However, because the
...
JIT doesn't use the MC back-end asm printer to emit labels that it uses, the
section for the MCSymbol is never set. And thus the MCSymbol for the EH label
isn't marked as "defined". Because of that, TidyLandingPads removes the needed
landing pads from the JIT output. This breaks EH for every JIT program.
This is a work-around for this limitation. We pass in the label locations
map. If the label has a non-zero value, then it was "emitted" by the JIT and
TidyLandingPads shouldn't remove that label.
A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely
upon the section being set to determine if it's defined or not.
llvm-svn: 101453
2010-04-16 08:46:10 +00:00
af56facacd
Adding support for dag combiner to promote operations for profit. This requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding.
...
x86 support is off by default. It can be enabled with -promote-16bit.
Work in progress.
llvm-svn: 101448
2010-04-16 06:14:10 +00:00
5563473062
Refine further the scope where the global DebugLoc value is active.
...
llvm-svn: 101443
2010-04-16 05:06:56 +00:00
403e9694f9
back out r101423 and r101397, they break llvm-gcc self-host on darwin10
...
llvm-svn: 101434
2010-04-16 01:16:20 +00:00
cdc3df4888
Avoid sinking machine instructions into a loop.
...
MachineLoopInfo is already available when MachineSinking runs, so the check is
free.
There is no test case because it would require a critical edge into a loop, and
CodeGenPrepare splits those. This check is just to be extra careful.
llvm-svn: 101420
2010-04-15 23:41:02 +00:00
33ae80bff7
reapply r101364, which has been backed out in r101368
...
with a fix
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101397
2010-04-15 20:51:13 +00:00
b642a27525
Fix PR6847. RegScavenger should ignore DebugValues.
...
llvm-svn: 101392
2010-04-15 20:28:39 +00:00
19cd1d84ad
Make sure the initialization of a GC root is after its definition.
...
llvm-svn: 101388
2010-04-15 19:53:35 +00:00
b36d07cb93
prune includes
...
llvm-svn: 101385
2010-04-15 19:44:21 +00:00
b29cda9b3c
Fix a bunch of namespace polution.
...
llvm-svn: 101376
2010-04-15 17:08:50 +00:00
ff3c8b7eaf
typos
...
llvm-svn: 101371
2010-04-15 15:14:46 +00:00
9fd00c7d25
back out r101364, as it trips the linux nightlybot on some clang C++ tests
...
llvm-svn: 101368
2010-04-15 12:46:56 +00:00
aafd209632
rotate CallInst operands, i.e. move callee to the back
...
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101364
2010-04-15 10:49:53 +00:00
3245afdf05
enhance the load/store narrowing optimization to handle a
...
tokenfactor in between the load/store. This allows us to
optimize test7 into:
_test7: ## @test7
## BB#0: ## %entry
movl (%rdx), %eax
## kill: SIL<def> ESI<kill>
movb %sil, 5(%rdi)
ret
instead of:
_test7: ## @test7
## BB#0: ## %entry
movl 4(%esp), %ecx
movl $-65281, %eax ## imm = 0xFFFFFFFFFFFF00FF
andl 4(%ecx), %eax
movzbl 8(%esp), %edx
shll $8, %edx
addl %eax, %edx
movl 12(%esp), %eax
movl (%eax), %eax
movl %edx, 4(%ecx)
ret
llvm-svn: 101355
2010-04-15 06:10:49 +00:00
6ebd8674eb
teach codegen to turn trunc(zextload) into load when possible.
...
This doesn't occur much at all, it only seems to formed in the case
when the trunc optimization kicks in due to phase ordering. In that
case it is saves a few bytes on x86-32.
llvm-svn: 101350
2010-04-15 05:40:59 +00:00
f9b2e3c68a
add a simple dag combine to replace trivial shl+lshr with
...
and. This happens with the store->load narrowing stuff.
llvm-svn: 101348
2010-04-15 05:28:43 +00:00
4041ab6e00
Implement rdar://7860110 (also in target/readme.txt) narrowing
...
a load/or/and/store sequence into a narrower store when it is
safe. Daniel tells me that clang will start producing this sort
of thing with bitfields, and this does trigger a few dozen times
on 176.gcc produced by llvm-gcc even now.
This compiles code like CodeGen/X86/2009-05-28-DAGCombineCrash.ll
into:
movl %eax, 36(%rdi)
instead of:
movl $4294967295, %eax ## imm = 0xFFFFFFFF
andq 32(%rdi), %rax
shlq $32, %rcx
addq %rax, %rcx
movq %rcx, 32(%rdi)
and each of the testcases into a single store. Each of them used
to compile into craziness like this:
_test4:
movl $65535, %eax ## imm = 0xFFFF
andl (%rdi), %eax
shll $16, %esi
addl %eax, %esi
movl %esi, (%rdi)
ret
llvm-svn: 101343
2010-04-15 04:48:01 +00:00
913c998703
Add more const qualifiers for LLVM IR pointers in CodeGen.
...
llvm-svn: 101342
2010-04-15 04:33:49 +00:00
bcaf681cde
Add const qualifiers to CodeGen's use of LLVM IR constructs.
...
llvm-svn: 101334
2010-04-15 01:51:59 +00:00
87b4f7c1aa
More 80 violations.
...
llvm-svn: 101330
2010-04-15 01:25:27 +00:00
8442ef6f89
80 col violations.
...
llvm-svn: 101325
2010-04-15 01:01:55 +00:00
3d6c40c616
Add comment.
...
llvm-svn: 101317
2010-04-15 00:02:49 +00:00
97bdf94da3
There is no need to track compile unit offsets if there is only one compile unit.
...
llvm-svn: 101315
2010-04-14 23:56:24 +00:00
b08ccb62d5
Remove dead code.
...
llvm-svn: 101314
2010-04-14 23:54:13 +00:00
c87b74d913
Delete unneeeded arguments.
...
llvm-svn: 101276
2010-04-14 20:17:22 +00:00
a3918ecdf5
Delete unused arguments.
...
llvm-svn: 101275
2010-04-14 20:05:00 +00:00
7deb447781
Factor out EH landing pad code into a separate function, and constify
...
a bunch of stuff to support it.
llvm-svn: 101273
2010-04-14 19:53:31 +00:00
c2c08d19b8
Reset the debug location even if the instruction was a terminator.
...
llvm-svn: 101272
2010-04-14 19:30:02 +00:00
cacd4f2401
Refine #includes.
...
llvm-svn: 101269
2010-04-14 18:49:17 +00:00
8ebcbe949a
Pull utility routines with no SelectionDAG dependence out of
...
SelectionDAGBuilder. FunctionLoweringInfo isn't an ideal place for
them to live, but it's better than SelectionDAGBuilder for now.
llvm-svn: 101267
2010-04-14 18:31:02 +00:00
f5cca35750
Fix typos in comments.
...
llvm-svn: 101266
2010-04-14 18:24:06 +00:00
fea9ba18ff
Delete an obsolete comment.
...
llvm-svn: 101264
2010-04-14 17:40:25 +00:00
3215eae4a3
Delete an unused function.
...
llvm-svn: 101263
2010-04-14 17:22:02 +00:00
094fc7b09e
Clear the FunctionLoweringInfo object before doing other things that
...
don't need it.
llvm-svn: 101262
2010-04-14 17:13:16 +00:00
ad0b3ea3cc
Move this assert out of SelectionDAGISel into FunctionLoweringInfo, and
...
drop the redundant #ifndef NDEBUG.
llvm-svn: 101261
2010-04-14 17:11:23 +00:00
0f405c8d73
Add a comment.
...
llvm-svn: 101260
2010-04-14 17:09:37 +00:00
2ca8fb229c
Move the code for initialing the entry block livein set out of
...
SelectionDAGISel.
llvm-svn: 101258
2010-04-14 17:05:00 +00:00
4bfb437ec9
Reorgnaize this code to be more tidy and readable.
...
llvm-svn: 101256
2010-04-14 17:02:07 +00:00
1939b5f130
Trim #includes.
...
llvm-svn: 101255
2010-04-14 16:54:39 +00:00
2b79ee8bc8
Move the code for emitting livein copies out of SelectionDAGISel.
...
llvm-svn: 101254
2010-04-14 16:51:49 +00:00
69e8e322d9
Sink landing-pad marking code out of
...
SelectionDAGISel::runOnMachineFunction into FunctionLowering.
llvm-svn: 101252
2010-04-14 16:32:56 +00:00
f57117d166
It's not necessary to recompute EB here.
...
llvm-svn: 101251
2010-04-14 16:30:40 +00:00
5f40d34958
Generalize this code to handle Instructions in addition to ConstantExprs.
...
llvm-svn: 101210
2010-04-14 02:33:23 +00:00
9162fb07be
Reorder the methods of this class to be a little more organized.
...
llvm-svn: 101206
2010-04-14 02:09:45 +00:00
b7eadda495
Clear MachineInstr->MCSymbol maps at the end of a function.
...
llvm-svn: 101202
2010-04-14 01:18:28 +00:00
87585d72a5
Fast path implicit_def check.
...
llvm-svn: 101183
2010-04-13 22:13:34 +00:00
12d150ea43
Do not include types without any definition in pubtypes list.
...
llvm-svn: 101171
2010-04-13 20:35:04 +00:00
cce672c172
Avoid variable shadowing.
...
llvm-svn: 101170
2010-04-13 20:25:29 +00:00
89e74792b6
Expand postra machine licm's capability a little more. If an instruction's register operands are all loop invariants, then it's safe to hoist it.
...
llvm-svn: 101167
2010-04-13 20:21:05 +00:00
20b71e28cc
Teach MachineSinking to handle easy critical edges.
...
Sometimes it is desirable to sink instructions along a critical edge:
x = ...
if (a && b) ...
else use(x);
The 'a && b' condition creates a critical edge to the else block, but we still
want to sink the computation of x into the block. The else block is dominated by
the parent block, so we are not pushing instructions into new code paths.
llvm-svn: 101165
2010-04-13 19:06:14 +00:00
0a2aff2d12
Teach postra machine licm to hoist more obvious invariants, e.g. instructions with no source operands.
...
llvm-svn: 101154
2010-04-13 18:16:00 +00:00
8a2dae57e2
Add a few comments.
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llvm-svn: 101148
2010-04-13 17:07:06 +00:00
9d2d053e11
Eliminate MachineBasicBlock::const_livein_iterator and make
...
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.
llvm-svn: 101147
2010-04-13 16:57:55 +00:00
dcacef3188
Rename MachineFrameInfo variables to MFI, for consistency with
...
the rest of CodeGen.
llvm-svn: 101146
2010-04-13 16:56:45 +00:00
6b1b1e4358
Move MachineRegisterInfo's isLiveIn and isLiveOut out of line.
...
llvm-svn: 101145
2010-04-13 16:55:37 +00:00
39305067ad
Delete an unused member variable.
...
llvm-svn: 101143
2010-04-13 16:51:39 +00:00
5b212a31a2
add llvm codegen support for -ffunction-sections and -fdata-sections,
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patch by Sylvere Teissier!
llvm-svn: 101106
2010-04-13 00:36:43 +00:00
e4148978b8
Remove a #include.
...
llvm-svn: 101043
2010-04-12 16:26:03 +00:00
d0b5c6cbed
Plug trivial leak.
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llvm-svn: 101034
2010-04-12 11:38:35 +00:00
250283916d
Enable post regalloc machine licm by default.
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llvm-svn: 101023
2010-04-12 06:25:28 +00:00
ecd40a34e2
Remove unnecessary parens.
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llvm-svn: 101010
2010-04-12 02:24:01 +00:00
67dd3a4464
Tidy whitespace.
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llvm-svn: 100904
2010-04-09 21:38:26 +00:00
541019ddec
Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function.
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llvm-svn: 100867
2010-04-09 16:04:20 +00:00
87f8207c97
Delete this obsolete comment.
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llvm-svn: 100858
2010-04-09 14:12:01 +00:00
825989ab63
Add a missing dependency to this library when building with CMake.
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llvm-svn: 100852
2010-04-09 05:55:25 +00:00
d8eeb12120
Use getNumImplicitDefs() and getNumImplicitUses().
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llvm-svn: 100850
2010-04-09 04:46:43 +00:00
406f270148
Fix up some comments.
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llvm-svn: 100849
2010-04-09 04:34:03 +00:00
4ce1fb1448
Add variants of ult, ule, etc. which take a uint64_t RHS, for convenience.
...
llvm-svn: 100824
2010-04-08 23:03:40 +00:00
80c345927e
delete a forwarding function.
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llvm-svn: 100815
2010-04-08 21:34:17 +00:00
5418dd5fda
move elf section uniquing to MCContext. Along the way
...
merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
433d40695b
remove the TargetLoweringObjectFileMachO::getMachoSection
...
api and update clients to use MCContext instead.
llvm-svn: 100808
2010-04-08 20:40:11 +00:00
2073112fc0
move macho section uniquing from MCParser and TLOF to MCContext where
...
the compiler and asmparser now unique to the same sections. This fixes
rdar://7835021.
llvm-svn: 100807
2010-04-08 20:30:37 +00:00
b083c47c21
Coalescer should not delete copy instructions whose defs are partially dead. e.g.
...
%RDI<def,dead> = MOV64rr %RAX<kill>, %EDI<imp-def>
llvm-svn: 100804
2010-04-08 20:02:37 +00:00
d87bd77586
Fix -Wsign-compare warning (issued by clang++).
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llvm-svn: 100799
2010-04-08 18:49:30 +00:00
359b013129
Rename a function.
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llvm-svn: 100797
2010-04-08 18:43:56 +00:00
294a90d87a
implicit defs get added to the end of machine instrs sometimes. Scan the whole instruction for the metadata operand instead of assuming it will be at the end of the instruction.
...
llvm-svn: 100792
2010-04-08 18:20:52 +00:00
3ebd8931fb
One instruction may start (or end) multiple lexical scopes.
...
There is no need to remember labels identifying regions marked by such instructions in each scope.
llvm-svn: 100781
2010-04-08 16:50:29 +00:00
2abed283e5
Remove dead code.
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llvm-svn: 100771
2010-04-08 15:48:02 +00:00
adfd4df12c
Delete out of date comment.
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llvm-svn: 100769
2010-04-08 15:41:13 +00:00
f1d5a1e994
Refactor.
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llvm-svn: 100768
2010-04-08 15:37:09 +00:00
a6769269f3
Use twines to simplify calls to report_fatal_error. For code size and readability.
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llvm-svn: 100756
2010-04-08 10:44:28 +00:00
ebe47c872f
Avoid using f64 to lower memcpy from constant string. It's cheaper to use i32 store of immediates.
...
llvm-svn: 100751
2010-04-08 07:37:57 +00:00
058b9f04e8
Make post regalloc machine licm functional. It now passes all of MultiSource.
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llvm-svn: 100742
2010-04-08 01:03:47 +00:00
3c65a8324d
convert a report_fatal_error that I was able to trigger into a nice error
...
so the user at least knows what inline asm is a problem. For example:
error: inline asm not supported yet: don't know how to handle tied indirect register inputs
pr8788-1.c:14:10: note: generated from here
asm ("\n" : "+r" (stack->regs)
^
Instead of:
fatal error: error in backend: Don't know how to handle tied indirect register inputs yet!
llvm-svn: 100731
2010-04-08 00:09:16 +00:00
94ef52824b
minor tidying.
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llvm-svn: 100725
2010-04-07 23:50:38 +00:00
cd92718a0f
use assertions instead of unreachable for logic errors.
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llvm-svn: 100724
2010-04-07 23:47:51 +00:00
1e45789ee0
introduce a new recoverable error handling API to LLVMContext
...
and use it in one place in inline asm handling stuff. Before
we'd generate this for an invalid modifier letter:
$ clang asm.c -c -o t.o
fatal error: error in backend: Invalid operand found in inline asm: 'abc incl ${0:Z}'
INLINEASM <es:abc incl ${0:Z}>, 10, %EAX<def>, 2147483657, %EAX, 14, %EFLAGS<earlyclobber,def,dead>, <!-1>
Now we generate this:
$ clang asm.c -c -o t.o
error: invalid operand in inline asm: 'incl ${0:Z}'
asm.c:3:12: note: generated from here
__asm__ ("incl %Z0" : "+r" (X));
^
1 error generated.
This is much better but still admittedly not great ("why" is the operand
invalid??), codegen should try harder with its diagnostics :)
llvm-svn: 100723
2010-04-07 23:40:44 +00:00
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
...
llvm-svn: 100709
2010-04-07 22:58:41 +00:00
cc7bb24fe2
remove some unneeded errorhandling stuff.
...
llvm-svn: 100703
2010-04-07 22:44:07 +00:00
b50e795369
tidy up
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llvm-svn: 100700
2010-04-07 22:29:10 +00:00
6e01726eae
Remove late ARM codegen optimization pass committed by accident.
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It is not ready for public yet.
llvm-svn: 100673
2010-04-07 18:23:27 +00:00
0bdc6345e8
Initial support for different kinds of FU reservation.
...
llvm-svn: 100645
2010-04-07 18:19:32 +00:00
9a348a9572
Factor out scoreboard into separate class. This way we might have several different score boards.
...
llvm-svn: 100644
2010-04-07 18:19:24 +00:00
fed8ee7dfc
Add hook to insert late LLVM=>LLVM passes just before isel
...
llvm-svn: 100640
2010-04-07 18:18:42 +00:00
6855d62768
fix 80 col violation, patch by Alastair Lynn
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llvm-svn: 100639
2010-04-07 18:13:33 +00:00
29233c0458
add a comment line that got dropped
...
llvm-svn: 100638
2010-04-07 18:10:38 +00:00
f839ee0c13
fix a latent bug my inline asm stuff exposed:
...
MachineOperand::isIdenticalTo wasn't handling metadata operands.
llvm-svn: 100636
2010-04-07 18:03:19 +00:00
f2351a7a6e
Remove unused method.
...
llvm-svn: 100620
2010-04-07 11:23:46 +00:00
f8dba24a9b
Workaround the breakage in r100616 by guarding all timers with
...
TimePassesIsEnabled. This should allow make check to pass.
llvm-svn: 100618
2010-04-07 10:44:46 +00:00
fcc14141c7
Use the "NamedGroupTimer" class to categorize DWARF emission better.
...
llvm-svn: 100616
2010-04-07 09:28:04 +00:00
43c275fa56
Use raw_ostream.
...
llvm-svn: 100615
2010-04-07 09:26:51 +00:00
5ed679282b
Add comments for missed opportunities.
...
llvm-svn: 100610
2010-04-07 06:00:33 +00:00
fcbcc0bd51
Fix typo.
...
llvm-svn: 100609
2010-04-07 05:59:12 +00:00
51065568cd
Have the inst emitter add the !srcloc mdnode to the machine instr.
...
Have the asmprinter use the mdnode to scavenge a source location if
present. Document this nonsense in langref.
llvm-svn: 100607
2010-04-07 05:38:05 +00:00
d62adaa54d
remove another magic number.
...
llvm-svn: 100606
2010-04-07 05:27:36 +00:00
3b9f02a2aa
Three changes:
...
1. Introduce some enums and accessors in the InlineAsm class
that eliminate a ton of magic numbers when handling inline
asm SDNode.
2. Add a new MDNodeSDNode selection dag node type that holds
a MDNode (shocking!)
3. Add a new argument to ISD::INLINEASM nodes that hold !srcloc
metadata, propagating it to the instruction emitter, which
drops it.
No functionality change.
llvm-svn: 100605
2010-04-07 05:20:54 +00:00
5d7f0a0fdd
Move printing of target-indepedent DEBUG_VALUE comments
...
into AsmPrinter. Target-dependent form is still generated
by FastISel and still handled in X86 code.
llvm-svn: 100596
2010-04-07 01:15:14 +00:00
6ea5949a93
Post regalloc LICM. Work in progress.
...
llvm-svn: 100592
2010-04-07 00:41:17 +00:00
019922d1b0
Do not emit specification DIE with DW_AT_specification attribute for member functions of a funcation local class. This trips gdb's partial scan of DIEs at load time. Fixes Radar 7833483.
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llvm-svn: 100586
2010-04-06 23:53:48 +00:00
796583eec0
Fix a number of clang -Wsign-compare warnings that didn't have an obvious
...
solution. The only reason these don't fire with gcc-4.2 is that gcc turns off
part of -Wsign-compare in C++ on accident.
llvm-svn: 100581
2010-04-06 23:35:53 +00:00
b36c70913b
Revert 100573, it's causing some testsuite problems.
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llvm-svn: 100578
2010-04-06 22:45:26 +00:00
85b35b6214
Move printing of DEBUG_VALUE comments to target-independent place.
...
There is probably a more elegant way to do this.
llvm-svn: 100573
2010-04-06 22:21:07 +00:00
d1976e35c4
Allow for the possibility that a debug-value points
...
to a SDNode that didn't have code generated for it.
llvm-svn: 100566
2010-04-06 21:59:56 +00:00
4bd3dd956f
Reverting 100530 & 100531 due to regressions in the GDB test suite.
...
llvm-svn: 100563
2010-04-06 21:38:29 +00:00
a910f17a20
Code clean up. Move includes from VirtRegRewriter.h to VirtRegRewriter.cpp.
...
llvm-svn: 100532
2010-04-06 17:19:55 +00:00
c067196984
Revise debug info machinery to digest nested functions and classes.
...
A certain GDB testsuite case (local.cc) has a function nested inside a
class nested inside another function. GCC presents the innermost
function to llvm-convert first. Heretofore, the debug info mistakenly
placed the inner function at module scope. This patch walks the GCC
context links and instantiates the outer class and function so the
debug info is properly nested. Radar 7426545.
llvm-svn: 100530
2010-04-06 17:19:32 +00:00
bf86224d5e
Remove assert to treat memmove and memset like memcpy
...
llvm-svn: 100521
2010-04-06 08:27:51 +00:00
92aba5a817
propagate cookie management out one layer of function calls.
...
llvm-svn: 100510
2010-04-06 00:58:50 +00:00
59126b2500
report errors through LLVMContext's inline asm handler if available.
...
llvm-svn: 100509
2010-04-06 00:55:39 +00:00
f226748324
Give MachineModuleInfo an actual Module*.
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llvm-svn: 100508
2010-04-06 00:51:52 +00:00
fc4a1db23b
Remove unnecessary include.
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llvm-svn: 100505
2010-04-06 00:38:32 +00:00
272a2f8432
Fix an obvious copy-n-paste bug. It's not known to cause any miscompilation.
...
llvm-svn: 100494
2010-04-05 23:33:29 +00:00
3b21e4d404
Give AsmParser an option to control whether it finalizes
...
the stream. New demo:
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000 subq $0x08,%rsp
0000000000000004 movl %edi,(%rsp)
0000000000000007 movl %edi,%eax
0000000000000009 incl %eax
000000000000000b movl %eax,(%rsp)
000000000000000e movl %eax,0x04(%rsp)
0000000000000012 addq $0x08,%rsp
0000000000000016 ret
llvm-svn: 100492
2010-04-05 23:15:42 +00:00
8900ef1931
add .o file writing for inline asm in llc. Here's a silly
...
demo:
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
abc incl %eax
^
LLVM ERROR: Error parsing inline asm
Only problem seems to be that the parser finalizes OutStreamer
at the end of the first inline asm, which isn't what we want.
For example:
$ cat asm.c
int foo(int X) {
__asm__ ("incl %0" : "+r" (X));
return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
subq $8, %rsp
movl %edi, (%rsp)
movl %edi, %eax
## InlineAsm Start
incl %eax
## InlineAsm End
movl %eax, (%rsp)
movl %eax, 4(%rsp)
addq $8, %rsp
ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000 subq $0x08,%rsp
0000000000000004 movl %edi,(%rsp)
0000000000000007 movl %edi,%eax
0000000000000009 incl %eax
$
don't stop at inc!
llvm-svn: 100491
2010-04-05 23:11:24 +00:00
30346347b3
Output floating point representations in DWARF format. This is done by outputing
...
the FP encoding directly as a hex representation.
llvm-svn: 100487
2010-04-05 22:59:21 +00:00
0e45d24a4e
stringref-ize the MemoryBuffer::get apis. This requires
...
a co-committed clang patch.
llvm-svn: 100485
2010-04-05 22:42:30 +00:00
f38547c83f
Add a comment.
...
llvm-svn: 100459
2010-04-05 20:24:08 +00:00
bc217873e3
lowering a volatile llvm.memcpy to a libc memcpy is ok.
...
PR6779
llvm-svn: 100457
2010-04-05 20:11:45 +00:00
918a90a3ca
Don't do code sinking on unreachable blocks. It's unprofitable and hazardous.
...
llvm-svn: 100455
2010-04-05 19:17:22 +00:00
fb964e57e5
remove the now-redundant MMI pointer in SelectionDAG.
...
llvm-svn: 100419
2010-04-05 06:19:28 +00:00
28f2fdafcd
hopefully sate the clang self host build, which is apparently
...
instantiating some folding set stuff that GCC isn't, requiring
some types to not be incomplete.
I don't know if clang is right or wrong, but unbreaking the
bot is goodness. Here's the broken build:
http://google1.osuosl.org:8011/builders/clang-x86_64-darwin10-selfhost/builds/1813/steps/compile.llvm.stage2/logs/stdio
llvm-svn: 100418
2010-04-05 06:12:01 +00:00
6361414c88
remove some redundant MMI arguments.
...
llvm-svn: 100417
2010-04-05 06:10:13 +00:00
305f2efb63
unthread MMI from FastISel
...
llvm-svn: 100416
2010-04-05 06:05:26 +00:00
82ff9af068
remove the MMI pointer from MachineFrameInfo.
...
llvm-svn: 100415
2010-04-05 05:57:52 +00:00
Dan Gohman