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Author SHA1 Message Date
Dan Gohman
5736cd1e47 Start function numbering at 0. 
llvm-svn: 101638
 2010-04-17 16:29:15 +00:00
Dan Gohman
6065ff317b Delete now-unnecessary const_casts. 
llvm-svn: 101637
 2010-04-17 15:32:28 +00:00
Dan Gohman
a0f855157e 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
Evan Cheng
0004496a98 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
Evan Cheng
81f543c005 Fix codegen passes. -disable-ssc shouldn't disable postra machine licm. 
llvm-svn: 101622
 2010-04-17 06:47:47 +00:00
Evan Cheng
6442d111dd 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
Evan Cheng
aa2f3449c4 Another 80 col violation. 
llvm-svn: 101620
 2010-04-17 06:12:32 +00:00
Bob Wilson
01b8b8ef7d 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
Jakob Stoklund Olesen
2f0fbb4587 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
Eric Christopher
e78496e5f1 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
Devang Patel
1929d78e71 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Jakob Stoklund Olesen
51248b6cb4 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
Evan Cheng
b55929892f (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
Dan Gohman
b3afc2a215 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
Dan Gohman
2912cb780f Commit this, which should have accompanied 101531. 
llvm-svn: 101532
 2010-04-16 20:22:43 +00:00
Evan Cheng
80afc6964c 80 col. 
llvm-svn: 101501
 2010-04-16 17:58:41 +00:00
Evan Cheng
e541446e11 80 col. 
llvm-svn: 101500
 2010-04-16 17:57:59 +00:00
Dan Gohman
e9683c52da Avoid creating virtual registers for unused values. 
llvm-svn: 101480
 2010-04-16 17:15:02 +00:00
Dan Gohman
30de6c2b1c Fix an assertion string. 
llvm-svn: 101478
 2010-04-16 16:55:18 +00:00
Dan Gohman
cb1d4ed9d0 Fix a comment. 
llvm-svn: 101477
 2010-04-16 16:52:37 +00:00
Gabor Greif
e7d6812008 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
Bill Wendling
7ede9396f4 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
Evan Cheng
d143bfe0a4 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
Dan Gohman
01d4af69bf Refine further the scope where the global DebugLoc value is active. 
llvm-svn: 101443
 2010-04-16 05:06:56 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Jakob Stoklund Olesen
00bd3bcbe4 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
Gabor Greif
2e18d34d80 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
Jakob Stoklund Olesen
a40915cc26 Fix PR6847. RegScavenger should ignore DebugValues. 
llvm-svn: 101392
 2010-04-15 20:28:39 +00:00
Nicolas Geoffray
2a7f992240 Make sure the initialization of a GC root is after its definition. 
llvm-svn: 101388
 2010-04-15 19:53:35 +00:00
Gabor Greif
61f227914e prune includes 
llvm-svn: 101385
 2010-04-15 19:44:21 +00:00
Dan Gohman
d48633d340 Fix a bunch of namespace polution. 
llvm-svn: 101376
 2010-04-15 17:08:50 +00:00
Gabor Greif
53da5ab8cf typos 
llvm-svn: 101371
 2010-04-15 15:14:46 +00:00
Gabor Greif
6022150477 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
Gabor Greif
428ca23bbd 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
Chris Lattner
1b7ecfdf60 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
Chris Lattner
8c5a5c9094 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
Chris Lattner
510d19e597 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
Chris Lattner
3282f3d34f 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
Dan Gohman
64a84ceb3f Add more const qualifiers for LLVM IR pointers in CodeGen. 
llvm-svn: 101342
 2010-04-15 04:33:49 +00:00
Dan Gohman
0e0b8cf9fd Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Evan Cheng
8249affa3b More 80 violations. 
llvm-svn: 101330
 2010-04-15 01:25:27 +00:00
Evan Cheng
263c547804 80 col violations. 
llvm-svn: 101325
 2010-04-15 01:01:55 +00:00
Devang Patel
1b457aa5cd Add comment. 
llvm-svn: 101317
 2010-04-15 00:02:49 +00:00
Devang Patel
2374ea6452 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
Devang Patel
321a86f14b Remove dead code. 
llvm-svn: 101314
 2010-04-14 23:54:13 +00:00
Dan Gohman
1b67547226 Delete unneeeded arguments. 
llvm-svn: 101276
 2010-04-14 20:17:22 +00:00
Dan Gohman
d5d199da5f Delete unused arguments. 
llvm-svn: 101275
 2010-04-14 20:05:00 +00:00
Dan Gohman
c64d1d02a3 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
Dan Gohman
c94abce286 Reset the debug location even if the instruction was a terminator. 
llvm-svn: 101272
 2010-04-14 19:30:02 +00:00
Dan Gohman
2d61a3f384 Refine #includes. 
llvm-svn: 101269
 2010-04-14 18:49:17 +00:00
Dan Gohman
b0b1974ddd 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
Dan Gohman
64582fc238 Fix typos in comments. 
llvm-svn: 101266
 2010-04-14 18:24:06 +00:00
Dan Gohman
60b5b8fa20 Delete an obsolete comment. 
llvm-svn: 101264
 2010-04-14 17:40:25 +00:00
Dan Gohman
4fd4153d52 Delete an unused function. 
llvm-svn: 101263
 2010-04-14 17:22:02 +00:00
Dan Gohman
45b0642839 Clear the FunctionLoweringInfo object before doing other things that 
don't need it.

llvm-svn: 101262
 2010-04-14 17:13:16 +00:00
Dan Gohman
3738dc7587 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
Dan Gohman
4374fdf868 Add a comment. 
llvm-svn: 101260
 2010-04-14 17:09:37 +00:00
Dan Gohman
d0c66476e1 Move the code for initialing the entry block livein set out of 
SelectionDAGISel.

llvm-svn: 101258
 2010-04-14 17:05:00 +00:00
Dan Gohman
859cb3eea9 Reorgnaize this code to be more tidy and readable. 
llvm-svn: 101256
 2010-04-14 17:02:07 +00:00
Dan Gohman
a1656764cc Trim #includes. 
llvm-svn: 101255
 2010-04-14 16:54:39 +00:00
Dan Gohman
2c09c272ff Move the code for emitting livein copies out of SelectionDAGISel. 
llvm-svn: 101254
 2010-04-14 16:51:49 +00:00
Dan Gohman
6471bcb1fd Sink landing-pad marking code out of 
SelectionDAGISel::runOnMachineFunction into FunctionLowering.

llvm-svn: 101252
 2010-04-14 16:32:56 +00:00
Dan Gohman
625913100a It's not necessary to recompute EB here. 
llvm-svn: 101251
 2010-04-14 16:30:40 +00:00
Dan Gohman
1158c51fe0 Generalize this code to handle Instructions in addition to ConstantExprs. 
llvm-svn: 101210
 2010-04-14 02:33:23 +00:00
Dan Gohman
f3d8d6ef18 Reorder the methods of this class to be a little more organized. 
llvm-svn: 101206
 2010-04-14 02:09:45 +00:00
Devang Patel
4cc398507f Clear MachineInstr->MCSymbol maps at the end of a function. 
llvm-svn: 101202
 2010-04-14 01:18:28 +00:00
Evan Cheng
aadcfa8ad7 Fast path implicit_def check. 
llvm-svn: 101183
 2010-04-13 22:13:34 +00:00
Devang Patel
7c2bc9dbfe Do not include types without any definition in pubtypes list. 
llvm-svn: 101171
 2010-04-13 20:35:04 +00:00
Evan Cheng
6e5407402e Avoid variable shadowing. 
llvm-svn: 101170
 2010-04-13 20:25:29 +00:00
Evan Cheng
bc94b6f1fd 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
Jakob Stoklund Olesen
a75eedea38 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
Evan Cheng
d83c1b5a0e 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
Dan Gohman
a400b6eca8 Add a few comments. 
llvm-svn: 101148
 2010-04-13 17:07:06 +00:00
Dan Gohman
2bca857d78 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
Dan Gohman
80b52785a4 Rename MachineFrameInfo variables to MFI, for consistency with 
the rest of CodeGen.

llvm-svn: 101146
 2010-04-13 16:56:45 +00:00
Dan Gohman
22f72726f3 Move MachineRegisterInfo's isLiveIn and isLiveOut out of line. 
llvm-svn: 101145
 2010-04-13 16:55:37 +00:00
Dan Gohman
9652ec03e5 Delete an unused member variable. 
llvm-svn: 101143
 2010-04-13 16:51:39 +00:00
Chris Lattner
dabcd9738c add llvm codegen support for -ffunction-sections and -fdata-sections, 
patch by Sylvere Teissier!

llvm-svn: 101106
 2010-04-13 00:36:43 +00:00
Dan Gohman
3646979c2c Remove a #include. 
llvm-svn: 101043
 2010-04-12 16:26:03 +00:00
Benjamin Kramer
9904b07b61 Plug trivial leak. 
llvm-svn: 101034
 2010-04-12 11:38:35 +00:00
Evan Cheng
90788354c9 Enable post regalloc machine licm by default. 
llvm-svn: 101023
 2010-04-12 06:25:28 +00:00
Dan Gohman
5c9f7ed9aa Remove unnecessary parens. 
llvm-svn: 101010
 2010-04-12 02:24:01 +00:00
Bob Wilson
c340ffd866 Tidy whitespace. 
llvm-svn: 100904
 2010-04-09 21:38:26 +00:00
Devang Patel
55172d3571 Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function. 
llvm-svn: 100867
 2010-04-09 16:04:20 +00:00
Dan Gohman
f9cf2772f6 Delete this obsolete comment. 
llvm-svn: 100858
 2010-04-09 14:12:01 +00:00
Chandler Carruth
362be7d46d Add a missing dependency to this library when building with CMake. 
llvm-svn: 100852
 2010-04-09 05:55:25 +00:00
Bob Wilson
1fa38ca6fd Use getNumImplicitDefs() and getNumImplicitUses(). 
llvm-svn: 100850
 2010-04-09 04:46:43 +00:00
Bob Wilson
ed50c79a3a Fix up some comments. 
llvm-svn: 100849
 2010-04-09 04:34:03 +00:00
Dan Gohman
127f5c53e1 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
Chris Lattner
e154403f78 delete a forwarding function. 
llvm-svn: 100815
 2010-04-08 21:34:17 +00:00
Chris Lattner
1cf4bded13 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
Chris Lattner
0225dbbfee remove the TargetLoweringObjectFileMachO::getMachoSection 
api and update clients to use MCContext instead.

llvm-svn: 100808
 2010-04-08 20:40:11 +00:00
Chris Lattner
60ff59e5c1 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
Evan Cheng
619f1b8a94 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
Ted Kremenek
141d32b7e9 Fix -Wsign-compare warning (issued by clang++). 
llvm-svn: 100799
 2010-04-08 18:49:30 +00:00
Devang Patel
17b5b1dd88 Rename a function. 
llvm-svn: 100797
 2010-04-08 18:43:56 +00:00
Chris Lattner
f6e9c0c4bd 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
Devang Patel
89756fdbfc 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
Devang Patel
3cc4a24666 Remove dead code. 
llvm-svn: 100771
 2010-04-08 15:48:02 +00:00
Devang Patel
b9f9a00513 Delete out of date comment. 
llvm-svn: 100769
 2010-04-08 15:41:13 +00:00
Devang Patel
9ada7b28a2 Refactor. 
llvm-svn: 100768
 2010-04-08 15:37:09 +00:00
Benjamin Kramer
0fb23008bb Use twines to simplify calls to report_fatal_error. For code size and readability. 
llvm-svn: 100756
 2010-04-08 10:44:28 +00:00
Evan Cheng
3fa0b6fb03 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
Evan Cheng
2f7cee1730 Make post regalloc machine licm functional. It now passes all of MultiSource. 
llvm-svn: 100742
 2010-04-08 01:03:47 +00:00
Chris Lattner
579e7eb423 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
Chris Lattner
f9fbc74e40 minor tidying. 
llvm-svn: 100725
 2010-04-07 23:50:38 +00:00
Chris Lattner
96ed85d7ab use assertions instead of unreachable for logic errors. 
llvm-svn: 100724
 2010-04-07 23:47:51 +00:00
Chris Lattner
393ea6fc22 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
Chris Lattner
80b41881bc rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner
0768c834fe remove some unneeded errorhandling stuff. 
llvm-svn: 100703
 2010-04-07 22:44:07 +00:00
Chris Lattner
cc827ee016 tidy up 
llvm-svn: 100700
 2010-04-07 22:29:10 +00:00
Anton Korobeynikov
e5c1563130 Remove late ARM codegen optimization pass committed by accident. 
It is not ready for public yet.

llvm-svn: 100673
 2010-04-07 18:23:27 +00:00
Anton Korobeynikov
f93145e685 Initial support for different kinds of FU reservation. 
llvm-svn: 100645
 2010-04-07 18:19:32 +00:00
Anton Korobeynikov
bf7bbe3e94 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
Anton Korobeynikov
d873a16430 Add hook to insert late LLVM=>LLVM passes just before isel 
llvm-svn: 100640
 2010-04-07 18:18:42 +00:00
Chris Lattner
f520500a06 fix 80 col violation, patch by Alastair Lynn 
llvm-svn: 100639
 2010-04-07 18:13:33 +00:00
Chris Lattner
7816ae8fd0 add a comment line that got dropped 
llvm-svn: 100638
 2010-04-07 18:10:38 +00:00
Chris Lattner
60e5f55565 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
Benjamin Kramer
389c863692 Remove unused method. 
llvm-svn: 100620
 2010-04-07 11:23:46 +00:00
Torok Edwin
9028487b8b 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
Bill Wendling
8282504a14 Use the "NamedGroupTimer" class to categorize DWARF emission better. 
llvm-svn: 100616
 2010-04-07 09:28:04 +00:00
Benjamin Kramer
663f265996 Use raw_ostream. 
llvm-svn: 100615
 2010-04-07 09:26:51 +00:00
Evan Cheng
0f71b51991 Add comments for missed opportunities. 
llvm-svn: 100610
 2010-04-07 06:00:33 +00:00
Evan Cheng
eb32efa3b6 Fix typo. 
llvm-svn: 100609
 2010-04-07 05:59:12 +00:00
Chris Lattner
122572e13a 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
Chris Lattner
2bf164dbf2 remove another magic number. 
llvm-svn: 100606
 2010-04-07 05:27:36 +00:00
Chris Lattner
dde7376e9d 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
Dale Johannesen
c0f9c29448 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
Evan Cheng
ac90d47ea3 Post regalloc LICM. Work in progress. 
llvm-svn: 100592
 2010-04-07 00:41:17 +00:00
Devang Patel
bcab88162a 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. 
llvm-svn: 100586
 2010-04-06 23:53:48 +00:00
John McCall
e20cc3b28c 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
Dale Johannesen
2a51b8abe5 Revert 100573, it's causing some testsuite problems. 
llvm-svn: 100578
 2010-04-06 22:45:26 +00:00
Dale Johannesen
fefeacda3b 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
Dale Johannesen
fef6eb4076 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
Stuart Hastings
4f6cdc07e9 Reverting 100530 & 100531 due to regressions in the GDB test suite. 
llvm-svn: 100563
 2010-04-06 21:38:29 +00:00
Evan Cheng
99617bac24 Code clean up. Move includes from VirtRegRewriter.h to VirtRegRewriter.cpp. 
llvm-svn: 100532
 2010-04-06 17:19:55 +00:00
Stuart Hastings
749cf45929 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
Mon P Wang
c0da8af5c3 Remove assert to treat memmove and memset like memcpy 
llvm-svn: 100521
 2010-04-06 08:27:51 +00:00
Chris Lattner
960095d2c8 propagate cookie management out one layer of function calls. 
llvm-svn: 100510
 2010-04-06 00:58:50 +00:00
Chris Lattner
344a742ed1 report errors through LLVMContext's inline asm handler if available. 
llvm-svn: 100509
 2010-04-06 00:55:39 +00:00
Chris Lattner
8c1f45d90b Give MachineModuleInfo an actual Module*. 
llvm-svn: 100508
 2010-04-06 00:51:52 +00:00
Devang Patel
5e0cb53223 Remove unnecessary include. 
llvm-svn: 100505
 2010-04-06 00:38:32 +00:00
Evan Cheng
c6dc63d62c 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
Chris Lattner
f753452587 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
Chris Lattner
5b4c7591ac 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
Bill Wendling
bf50ddf6ac 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
Chris Lattner
269737461d stringref-ize the MemoryBuffer::get apis. This requires 
a co-committed clang patch.

llvm-svn: 100485
 2010-04-05 22:42:30 +00:00
Dan Gohman
302746a632 Add a comment. 
llvm-svn: 100459
 2010-04-05 20:24:08 +00:00
Chris Lattner
7d609ea6cb lowering a volatile llvm.memcpy to a libc memcpy is ok. 
PR6779

llvm-svn: 100457
 2010-04-05 20:11:45 +00:00
Dan Gohman
2aff0055c1 Don't do code sinking on unreachable blocks. It's unprofitable and hazardous. 
llvm-svn: 100455
 2010-04-05 19:17:22 +00:00
Chris Lattner
aa58ed7c00 remove the now-redundant MMI pointer in SelectionDAG. 
llvm-svn: 100419
 2010-04-05 06:19:28 +00:00
Chris Lattner
91309715b4 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
Chris Lattner
097a332684 remove some redundant MMI arguments. 
llvm-svn: 100417
 2010-04-05 06:10:13 +00:00
Chris Lattner
6f3c3f60ce unthread MMI from FastISel 
llvm-svn: 100416
 2010-04-05 06:05:26 +00:00
Chris Lattner
cfca39ef59 remove the MMI pointer from MachineFrameInfo. 
llvm-svn: 100415
 2010-04-05 05:57:52 +00:00
Chris Lattner
811d538611 enhance MachineFunction to have a MMI pointer. 
llvm-svn: 100414
 2010-04-05 05:49:50 +00:00
Chris Lattner
341747c032 privatize more stuff, eliminate vtables. 
llvm-svn: 100410
 2010-04-05 05:32:45 +00:00
Chris Lattner
5d96bd2bbe reprivatize now that DwarfWriter is gone. 
llvm-svn: 100409
 2010-04-05 05:31:04 +00:00
Chris Lattner
59156acba1 prune #includes, MMI can never be null 
llvm-svn: 100408
 2010-04-05 05:28:23 +00:00
Chris Lattner
f2fb401571 prune #includes, realize the MMI can never be null. 
llvm-svn: 100407
 2010-04-05 05:24:55 +00:00
Chris Lattner
37d4f1e56e finally blast DwarfWriter away. 
llvm-svn: 100406
 2010-04-05 05:12:59 +00:00
Chris Lattner
df6b0827aa change AsmPrinter to use DwarfDebug/DwarfException directly 
instead of going through DwarfWriter.

llvm-svn: 100405
 2010-04-05 05:11:15 +00:00
Chris Lattner
248e65ec05 trim some spurious references to DwarfWriter. SDIsel really doesn't 
need it anymore, so don't addRequire it.

llvm-svn: 100400
 2010-04-05 04:09:20 +00:00
Chris Lattner
16ed3bfb2b eliminate DwarfDebug::shouldEmit, which is the same now as MMI::hasDebugInfo 
llvm-svn: 100386
 2010-04-05 03:52:55 +00:00
Chris Lattner
697c2edddc fix a regression on 2009-08-17-DebugInfo.m 
llvm-svn: 100385
 2010-04-05 03:49:26 +00:00
Chris Lattner
c930f73b4d selection dag doesn't need DwarfWriter, remove some tendrils. 
llvm-svn: 100382
 2010-04-05 02:23:33 +00:00
Chris Lattner
1fda8b3a8b fastisel doesn't need DwarfWriter, remove some tendricles. 
llvm-svn: 100381
 2010-04-05 02:19:28 +00:00
Chris Lattner
6040137045 just have all targets create the DwarfWriter. 
llvm-svn: 100377
 2010-04-05 00:42:55 +00:00
Chris Lattner
fd80e7cca8 nuke DwarfPrinter 
llvm-svn: 100375
 2010-04-05 00:27:29 +00:00
Chris Lattner
122288eb97 make DwarfException not inherit from DwarfPrinter. 
llvm-svn: 100374
 2010-04-05 00:26:50 +00:00
Chris Lattner
c1b63a2dfa change SizeOf to take AsmPrinter instead of TargetData, 
simplifying a bunch of code.

llvm-svn: 100373
 2010-04-05 00:18:22 +00:00
Chris Lattner
2b89b0d279 1) make DIE take AsmPrinter instead of DwarfPrinter. 
2) change DwarfDebug to not inherit from DwarfPrinter.

llvm-svn: 100372
 2010-04-05 00:13:49 +00:00
Chris Lattner
0744c47856 Move EmitFrameMoves into AsmPrinter. 
llvm-svn: 100371
 2010-04-04 23:41:46 +00:00
Chris Lattner
303e9e2e0a simplify code and reduce indentation. 
llvm-svn: 100369
 2010-04-04 23:31:58 +00:00
Chris Lattner
2eaed62f7c now that the magic is dispelled, move EmitSectionOffset to AsmPrinter. 
llvm-svn: 100368
 2010-04-04 23:25:33 +00:00
Chris Lattner
ecdad4bb0c eliminate the magic AbsoluteDebugSectionOffsets MAI hook, 
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

llvm-svn: 100367
 2010-04-04 23:22:29 +00:00
Chris Lattner
957eddbcb0 only emit section labels if we have debug info, fixing a few 
regtest failures.

llvm-svn: 100366
 2010-04-04 23:17:54 +00:00
Chris Lattner
7295a273aa I was wrong, ocaml isn't referencing 'Ldata_begin', so remove it. 
llvm-svn: 100365
 2010-04-04 23:10:38 +00:00
Chris Lattner
4bd354ecd8 add some assertions to EmitSectionOffset. 
llvm-svn: 100364
 2010-04-04 23:06:31 +00:00
Chris Lattner
a991a67a29 stop emitting some dead L labels. 
llvm-svn: 100363
 2010-04-04 23:02:02 +00:00
Chris Lattner
265b59119d Store an use the symbols emitted at the start of the debug 
sections instead of magically rematerializing them later.

llvm-svn: 100362
 2010-04-04 22:59:04 +00:00
Chris Lattner
53453a2dc8 remove the didInitial ivar, rename emitInitial to be more 
descriptive, change EmitSectionOffset back to taking a
symbol instead of a string.

llvm-svn: 100361
 2010-04-04 22:33:59 +00:00
Chris Lattner
df18fb3a6d simplify EmitSectionOffset a little bit, improve comments. 
llvm-svn: 100360
 2010-04-04 22:25:14 +00:00
Chris Lattner
168d49e6cd The "IsSmall" argument to EmitSectionOffset is always true, 
constant fold it away.

llvm-svn: 100356
 2010-04-04 21:34:40 +00:00
Chris Lattner
da4fe3e7d2 eliminate the "isEH" argument to EmitSectionOffset. 
llvm-svn: 100355
 2010-04-04 21:31:54 +00:00
Chris Lattner
2f1c065cef isAbsoluteEHSectionOffsets always returns false, eliminate it 
and substitute false at the one call site.

llvm-svn: 100354
 2010-04-04 21:29:44 +00:00
Chris Lattner
c83be77854 move some more stuff to asmprinter. 
llvm-svn: 100351
 2010-04-04 20:20:50 +00:00
Chris Lattner
7214d4d564 simplify some code. 
llvm-svn: 100350
 2010-04-04 20:10:41 +00:00
Chris Lattner
703ccb1b4c move EmitEncodingByte to AsmPrinter. 
llvm-svn: 100349
 2010-04-04 20:04:21 +00:00
Chris Lattner
071eb40cd2 move EmitCFAByte to AsmPrinter. 
llvm-svn: 100348
 2010-04-04 20:01:25 +00:00
Chris Lattner
24ed58efd1 inline EmitDifference away. 
llvm-svn: 100347
 2010-04-04 19:58:12 +00:00
Chris Lattner
779e051357 resolve a fixme. 
llvm-svn: 100346
 2010-04-04 19:28:59 +00:00
Chris Lattner
c2b0a02be0 move gettemplabel and getdwlabel to AsmPrinter and rename 
them for consistency.

llvm-svn: 100345
 2010-04-04 19:25:43 +00:00
Chris Lattner
342b44f89f move uleb/sleb printing into AsmPrinter from DwarfPrinter. 
llvm-svn: 100344
 2010-04-04 19:09:29 +00:00
Chris Lattner
3bdfd5a34d more interface cleanup make some helpers static functions. 
llvm-svn: 100343
 2010-04-04 18:58:53 +00:00
Chris Lattner
328ffc8c32 clean up the asmprinter header and privatize some stuff. 
llvm-svn: 100342
 2010-04-04 18:52:31 +00:00
Chris Lattner
dd1f2b6e33 use stringref instead of strtol to avoid errno gymnastics. 
llvm-svn: 100341
 2010-04-04 18:42:18 +00:00
Chris Lattner
d7a37abb77 split inline asm support out to its own .cpp file. 
llvm-svn: 100340
 2010-04-04 18:34:07 +00:00
Chris Lattner
e55c5e9d81 inline processDebugLoc and simplify it. 
llvm-svn: 100339
 2010-04-04 18:18:51 +00:00
Chris Lattner
a5c6be681c minor tidying. 
llvm-svn: 100338
 2010-04-04 18:16:38 +00:00