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Author SHA1 Message Date
Devang Patel e141234940 Remove extra bytes that were added for gdb. We do not have good poiner to understand actual reason behind this fixme. Spot checking suggest that newer gdb does not need this. 
llvm-svn: 129461
 2011-04-13 19:41:17 +00:00
Devang Patel 0e821f4673 I missed this new file in previous commit. 
llvm-svn: 129407
 2011-04-12 23:21:44 +00:00
Devang Patel 28dce70364 Simplify. There is no need to use static variable. 
llvm-svn: 129406
 2011-04-12 23:10:47 +00:00
Devang Patel 13d47f0ddc Do not reuse parameter name. 
llvm-svn: 129405
 2011-04-12 23:09:06 +00:00
Devang Patel f20c4f715f This mechanical patch moves type handling into CompileUnit from DwarfDebug. In case of multiple compile unit in one object file, each compile unit is responsible for its own set of type entries anyway. This refactoring makes this obvious. 
llvm-svn: 129402
 2011-04-12 22:53:02 +00:00
Devang Patel 4547a9e658 Remove dead typedef. 
llvm-svn: 129368
 2011-04-12 17:43:12 +00:00
Devang Patel 5eb4319dba Refactor CompileUnit into a separate header. 
llvm-svn: 129367
 2011-04-12 17:40:32 +00:00
Devang Patel 778947c203 Simplify array bound checks and clarify comments. One element array can have same non-zero number as lower bound as well as upper bound. 
llvm-svn: 129170
 2011-04-08 23:39:38 +00:00
Devang Patel e39647951b Do not emit DW_AT_upper_bound and DW_AT_lower_bound for unbouded array. 
If lower bound is more then upper bound then consider it is an unbounded array.
An array is unbounded if non-zero lower bound is same as upper bound.
If lower bound and upper bound are zero than array has one element.

llvm-svn: 129156
 2011-04-08 21:55:10 +00:00
Evan Cheng b7c9c407f9 Remove dead code. rdar://9221736. 
llvm-svn: 129044
 2011-04-07 00:56:37 +00:00
Devang Patel 9f738849ab Add support to encode function's template parameters. 
llvm-svn: 128947
 2011-04-05 22:52:06 +00:00
Devang Patel d4e20eacf0 Refactor. 
llvm-svn: 128929
 2011-04-05 21:08:24 +00:00
Devang Patel 651d06e036 Do not emit empty name. 
llvm-svn: 128914
 2011-04-05 20:14:13 +00:00
Rafael Espindola 7dd4d6e2e8 Print visibility info for external variables. 
llvm-svn: 128887
 2011-04-05 15:51:32 +00:00
Devang Patel e0cbe31ebb Remove dead code. 
llvm-svn: 128639
 2011-03-31 16:53:49 +00:00
Jim Grosbach 1900c73a97 Tidy up. 80 columns and trailing whitespace. 
llvm-svn: 128504
 2011-03-29 23:20:22 +00:00
Jakob Stoklund Olesen 9a624fa993 Collect and coalesce DBG_VALUE instructions before emitting the function. 
Correctly terminate the range of register DBG_VALUEs when the register is
clobbered or when the basic block ends.

The code is now ready to deal with variables that are sometimes in a register
and sometimes on the stack. We just need to teach emitDebugLoc to say 'stack
slot'.

llvm-svn: 128327
 2011-03-26 02:19:36 +00:00
Jakob Stoklund Olesen 1886a4c823 Emit less labels for debug info and stop emitting .loc directives for DBG_VALUEs. 
The .dot directives don't need labels, that is a leftover from when we created
line number info manually.

Instructions following a DBG_VALUE can share its label since the DBG_VALUE
doesn't produce any code.

llvm-svn: 128284
 2011-03-25 17:20:59 +00:00
Devang Patel e01b75cb89 Keep track of directory namd and fIx regression caused by Rafael's patch r119613. 
A better approach would be to move source id handling inside MC.

llvm-svn: 128233
 2011-03-24 20:30:50 +00:00
Jakob Stoklund Olesen a87d80cdca Don't coalesce identical DBG_VALUE instructions prematurely. 
Each of these instructions may have a RegsClobberInsn entry that can't be
ignored. Consecutive ranges are coalesced later when DwarfDebug::emitDebugLoc
merges entries.

llvm-svn: 128155
 2011-03-23 18:37:30 +00:00
Jakob Stoklund Olesen ec0ac3ca40 Reapply r128045 and r128051 with fixes. 
This will extend the ranges of debug info variables in registers until they are
clobbered.

Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.

Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.

llvm-svn: 128114
 2011-03-22 22:33:08 +00:00
Andrew Trick b0f98bb5e9 Revert r128045 and r128051, debug info enhancements. 
Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.

llvm-svn: 128097
 2011-03-22 19:18:42 +00:00
Jakob Stoklund Olesen c6f4af028d Clear map after use. 
This is likely to fix the segfault in llvm-gcc-x86_64-darwin10-cross-mingw32.

llvm-svn: 128051
 2011-03-22 01:03:24 +00:00
Jakob Stoklund Olesen 9c057ee440 Dont emit 'DBG_VALUE %noreg, ...' to terminate user variable ranges. 
These ranges get completely jumbled by the post-ra scheduler, and it is not
really reasonable to expect it to make sense of them.

Instead, teach DwarfDebug to notice when user variables in registers are
clobbered, and terminate the ranges there.

llvm-svn: 128045
 2011-03-22 00:21:41 +00:00
Daniel Dunbar fd95b016fb Revert r127757, "Patch to a fix dwarf relocation problem on ARM. One-line fix 
plus the test where it used to break.", which broke Clang self-host of a
Debug+Asserts compiler, on OS X.

llvm-svn: 127763
 2011-03-16 22:16:39 +00:00
Renato Golin a3aeafeb35 Patch to a fix dwarf relocation problem on ARM. One-line fix plus the test where it used to break. 
llvm-svn: 127757
 2011-03-16 21:05:52 +00:00
Duncan Sands b847bf547b Speculatively revert commit 127478 (jsjodin) in an attempt to fix the 
llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.

llvm-svn: 127540
 2011-03-12 13:07:37 +00:00
Jan Sjödin f3f78583f9 Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used. 
llvm-svn: 127478
 2011-03-11 19:37:02 +00:00
Benjamin Kramer 84fccb64c3 Remove unused virtual dtor. 
llvm-svn: 127331
 2011-03-09 14:20:28 +00:00
NAKAMURA Takumi 0d8150f279 lib/CodeGen/AsmPrinter/CMakeLists.txt: Fix CMake build, following up to r127099. 
llvm-svn: 127114
 2011-03-06 00:13:15 +00:00
Anton Korobeynikov a7ec2dcefd Some first rudimentary support for ARM EHABI: print exception table in "text mode". 
llvm-svn: 127099
 2011-03-05 18:43:15 +00:00
Devang Patel 63b3e76370 Fix typo. 
llvm-svn: 126962
 2011-03-03 21:49:41 +00:00
Devang Patel 34a7ab400e Fix thinko in previous check-in. 
Add comment.

llvm-svn: 126959
 2011-03-03 20:08:10 +00:00
Devang Patel 4ab660b077 llvm::Function argument count is not a good indicator of how many arugments does the function have at source level. If we need more space, just resize vector conservatively. This vector is only used once per function. 
llvm-svn: 126957
 2011-03-03 20:02:02 +00:00
Devang Patel 6c622ef1bc If argument numbering is encoded in metadata then emit arguments' debug info in that order. 
llvm-svn: 126794
 2011-03-01 22:58:55 +00:00
Cameron Zwarich fcf51fd298 Roll out r126425 and r126450 to see if it fixes the failures on the buildbots. 
llvm-svn: 126488
 2011-02-25 16:30:32 +00:00
Nick Lewycky 1db7b187cb Remove dead variable. 
llvm-svn: 126450
 2011-02-24 23:15:43 +00:00
Devang Patel b037383a35 Enable DebugInfo support for COFF object files. 
Patch by Nathan Jeffords!

llvm-svn: 126425
 2011-02-24 21:04:00 +00:00
Devang Patel a5d93247c2 Do not use DIFactory. 
llvm-svn: 126397
 2011-02-24 18:49:30 +00:00
Devang Patel 7b0f796c55 Use DW_FORM_data2 for DW_AT_language and let users use DW_LANG_lo_user=0x8000 to DW_LANG_hi_user=0xffff range. 
llvm-svn: 126339
 2011-02-23 22:37:04 +00:00
Stuart Hastings bf83659d11 Omit private_extern declarations of extern symbols; followup to 
r124468.  Patch by Rafael Avila de Espindola!

llvm-svn: 126297
 2011-02-23 02:27:05 +00:00
Devang Patel 5f1b4cdda1 Do not emit empty DW_TAG_lexical_block DIEs. In one test case, size of debug info reduced by almost 7%. 
llvm-svn: 126009
 2011-02-19 01:31:27 +00:00
Devang Patel d12c0a2764 Ignore DBG_VALUE machine instructions while constructing instruction ranges based on location info. 
Machine instruction range consisting of only DBG_VALUE MIs only contributes consecutive labels in assembly output, which is harmless, and empty scope entry in DebugInfo, which confuses debugger tools.

llvm-svn: 125577
 2011-02-15 17:56:09 +00:00
Duncan Sands 75b5d27b84 Spelling fix: consequtive -> consecutive. 
llvm-svn: 125563
 2011-02-15 09:23:02 +00:00
Jakob Stoklund Olesen 6d4d8581bc Assert on bad jump tables. 
llvm-svn: 125225
 2011-02-09 21:52:06 +00:00
Devang Patel 116a9d7c38 Merge .debug_loc entries whenever possible to reduce debug_loc size. 
llvm-svn: 124904
 2011-02-04 22:57:18 +00:00
Devang Patel be933b470a Add support to describe template value parameter in debug info. 
llvm-svn: 124755
 2011-02-02 22:35:53 +00:00
Devang Patel 3a9e65efb6 Add support to describe template parameter type in debug info. 
llvm-svn: 124752
 2011-02-02 21:38:25 +00:00
Anton Korobeynikov fe3a6e049d Clarify the LSDASection NULL check 
llvm-svn: 124569
 2011-01-30 22:07:31 +00:00
Rafael Espindola 6c17d54891 Print the visibility of declarations. 
llvm-svn: 124468
 2011-01-28 03:20:10 +00:00
Anton Korobeynikov b15beb2ae1 Support printing exception section into the current one. This is the case when LSDASection is blank 
llvm-svn: 124150
 2011-01-24 22:38:40 +00:00
Devang Patel 2d9e532a3a Fix debug info for merged global. 
llvm-svn: 123862
 2011-01-20 00:02:16 +00:00
Devang Patel 8698f09dbd Fix register address expression. Patch by Ken Dyck. 
llvm-svn: 123856
 2011-01-19 23:04:47 +00:00
Ted Kremenek e92b6e436d Update CMake build. 
llvm-svn: 123491
 2011-01-14 22:58:11 +00:00
Anton Korobeynikov 9be547cfd3 Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff. 
llvm-svn: 123476
 2011-01-14 21:58:08 +00:00
Anton Korobeynikov b46ef57de5 Add CFI directives-based frame information emission. Not hooked yet. 
llvm-svn: 123474
 2011-01-14 21:57:53 +00:00
Anton Korobeynikov 61d167e92b Split stuff as a preparation for CFI directives-based frame information emission 
llvm-svn: 123473
 2011-01-14 21:57:45 +00:00
Devang Patel 447cb38fbe Appropriately truncate debug info range in dwarf output. 
This is not yet completely enabled.

llvm-svn: 123274
 2011-01-11 21:42:10 +00:00
Anton Korobeynikov 2f93128109 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 
llvm-svn: 123170
 2011-01-10 12:39:04 +00:00
Evan Cheng 6eb516dbea Do not model all INLINEASM instructions as having unmodelled side effects. 
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.

This allows memory instructions to be moved around INLINEASM instructions.

llvm-svn: 123044
 2011-01-07 23:50:32 +00:00
Devang Patel acbee0b0d9 Speculatively revert r123032. 
llvm-svn: 123039
 2011-01-07 22:33:41 +00:00
Devang Patel 6381e1584c Appropriately truncate debug info range in dwarf output. 
Enable live debug variables pass.

llvm-svn: 123032
 2011-01-07 21:30:41 +00:00
Devang Patel 70eb982843 Emit 128 bit constant. 
This fixes PR 8913 crash.

llvm-svn: 122971
 2011-01-06 21:39:25 +00:00
Chris Lattner bf0aa927cc split dom frontier handling stuff out to its own DominanceFrontier header, 
so that Dominators.h is *just* domtree.  Also prune #includes a bit.

llvm-svn: 122714
 2011-01-02 22:09:33 +00:00
Nick Lewycky 0de20af7ba Add missing standard headers. Patch by Joerg Sonnenberger! 
llvm-svn: 122193
 2010-12-19 20:43:38 +00:00
Chris Lattner f8d180b808 remove the verbose-asm "constant pool double" comments that we were printing 
for each constant pool entry.  Using WriteTypeSymbolic here takes time
proportional to the size of the module, for each constant pool entry.

This speeds up -verbose-asm llc on 252.eon (a random testcase at my disposal)
from 4.4s to 2.137s.  llc takes 2.11s with asm-verbose off, so this is now a
pretty reasonable cost for verbose comments.

llvm-svn: 121691
 2010-12-13 07:35:47 +00:00
Devang Patel c26da9005b DW_FORM_data1 may not provide sufficient room for vtable index, use _udata instead. 
This fixes radar 8730409.

llvm-svn: 121323
 2010-12-09 00:10:40 +00:00
Devang Patel bca5b25721 Undefined value in reg 0 may need a marker to identify end of source range. 
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.

llvm-svn: 121061
 2010-12-06 22:48:22 +00:00
Rafael Espindola 44bbe36de6 Second try at making direct object emission produce the same results 
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

llvm-svn: 121006
 2010-12-06 17:27:56 +00:00
Rafael Espindola dee3062373 Revert previous two patches while I try to find out how to make both 
linux and darwin assemblers happy :-(

llvm-svn: 121004
 2010-12-06 15:35:15 +00:00
Rafael Espindola 34a06a0802 Add an EmitAbsValue helper method and use it in cases where we want to be sure 
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

llvm-svn: 121000
 2010-12-06 14:53:14 +00:00
Michael J. Spencer 447762da85 Merge System into Support. 
llvm-svn: 120298
 2010-11-29 18:16:10 +00:00
Anton Korobeynikov 4687778398 Move some more hooks to TargetFrameInfo 
llvm-svn: 119904
 2010-11-20 15:59:32 +00:00
Anton Korobeynikov 14ee344944 Move getInitialFrameState() to TargetFrameInfo 
llvm-svn: 119754
 2010-11-18 23:25:52 +00:00
Rafael Espindola 67c6ab8865 Change CodeGen to use .loc directives. This produces a lot more readable output 
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

llvm-svn: 119613
 2010-11-18 02:04:25 +00:00
Chris Lattner 79ffdc7581 With the newly simplified SourceMgr interfaces and the generalized 
SrcMgrDiagHandler, we can improve clang diagnostics for inline asm:
instead of reporting them on a source line of the original line,
we can report it on the correct line wherever the string literal came
from. For something like this:

void foo() {
  asm("push %rax\n"
      ".code32\n");
}

we used to get this: (note that the line in t.c isn't helpful)

t.c:4:7: error: warning: ignoring directive for now
  asm("push %rax\n"
      ^
<inline asm>:2:1: note: instantiated into assembly here
.code32
^

now we get:

t.c:5:8: error: warning: ignoring directive for now
      ".code32\n"
       ^
<inline asm>:2:1: note: instantiated into assembly here
.code32
^

Note that we're pointing to line 5 properly now.

llvm-svn: 119488
 2010-11-17 08:20:42 +00:00
Chris Lattner b0e36085c4 now that AsmPrinter::EmitInlineAsm is factored right, we can eliminate the 
cookie argument to the SourceMgr diagnostic stuff.  This cleanly separates
LLVMContext's inlineasm handler from the sourcemgr error handling 
definition, increasing type safety and cleaning things up.

llvm-svn: 119486
 2010-11-17 08:13:01 +00:00
Chris Lattner 300fa45d8b rearrange how the handler in SourceMgr is installed, eliminating the use of 
the cookie argument to setDiagHandler

llvm-svn: 119483
 2010-11-17 08:03:32 +00:00
Chris Lattner 2a7f6fd9d4 refactor the interface to EmitInlineAsm a bit, no functionality change. 
llvm-svn: 119482
 2010-11-17 07:53:40 +00:00
Devang Patel 53a40df6ea Remove DW_AT_start_scope support. It is incomplete and superseeded by location entries support. 
llvm-svn: 118940
 2010-11-12 23:20:42 +00:00
Devang Patel 364bf04267 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.

llvm-svn: 118726
 2010-11-10 22:19:21 +00:00
Rafael Espindola 38d0756b88 Add 118023 back, but with proper spelling for .uleb128/.sleb128. 
llvm-svn: 118254
 2010-11-04 18:17:08 +00:00
Rafael Espindola bbc0ac2236 Revert previous patch. Some targets don't support uleb and say 
they do :-(

llvm-svn: 118250
 2010-11-04 17:04:24 +00:00
Rafael Espindola cfd6243940 MCize. 
llvm-svn: 118249
 2010-11-04 16:32:18 +00:00
Devang Patel e755966913 Simplify. 
llvm-svn: 118027
 2010-11-02 17:37:00 +00:00
Devang Patel 6e0d58968d Ignore empty blocks. 
llvm-svn: 117615
 2010-10-28 22:11:59 +00:00
Devang Patel 1c75865037 Do not work too hard to find type's file info. There is a special field to record file info. 
llvm-svn: 117588
 2010-10-28 19:50:08 +00:00
Devang Patel c4b69051b7 Technically DIFile scope should also be handled here. 
llvm-svn: 117563
 2010-10-28 17:30:52 +00:00
Devang Patel b5694e702c s/beginScope/beginInstruction/g 
s/endScope/endInstruction/g

llvm-svn: 117376
 2010-10-26 17:49:02 +00:00
Nick Lewycky 90b2ac2696 For statistics that are only used in functions declared in !NDEBUG, wrap the 
declarations in !NDEBUG to avoid -Wunused-variable warnings. Patch by
Matt Beaumont-Gay!

llvm-svn: 117345
 2010-10-26 00:51:57 +00:00
Devang Patel a86114b961 Add simple counter to count no. of basic blocks without any line number information. At -O0, these basic block coule cause less than optimial debugging experience. 
llvm-svn: 117307
 2010-10-25 20:45:32 +00:00
Devang Patel dd1c289a6a Line number 0 indicates there is no source line/file name info available for this construct. 
llvm-svn: 116061
 2010-10-08 17:18:54 +00:00
Devang Patel 3a24f9230a Provie a clearner interface so that FE can decide whether a function has prototype or not. 
llvm-svn: 115988
 2010-10-07 22:03:01 +00:00
Devang Patel 9a33ec24eb Add support for DW_TAG_unspecified_parameters. 
llvm-svn: 115833
 2010-10-06 20:50:40 +00:00
Devang Patel e1c714647c Add support to let FE mark explict methods as explict in debug info. 
llvm-svn: 115378
 2010-10-01 23:31:40 +00:00
Jim Grosbach 0091535361 Nuke trailing whitespace. 
llvm-svn: 115377
 2010-10-01 23:29:12 +00:00
Devang Patel bea08d1c85 Let FE mark a variable as artificial variable. 
llvm-svn: 115102
 2010-09-29 23:07:21 +00:00
Devang Patel cb03b14089 Add support to let FE encode method access specifier. 
llvm-svn: 115089
 2010-09-29 21:44:16 +00:00
Devang Patel a1bd5a1fad Assign DW_ACCESS_public accessibility attribute to members by default. 
llvm-svn: 115067
 2010-09-29 19:08:08 +00:00
Oscar Fuentes b4b12535e8 Removed a bunch of unnecessary target_link_libraries. 
llvm-svn: 114999
 2010-09-28 22:39:14 +00:00
Devang Patel 7a55481fa4 Provide an interface to let FEs anchor debug info for types. 
llvm-svn: 114969
 2010-09-28 18:08:20 +00:00
Devang Patel 185051cb8e Remove dead argument. 
llvm-svn: 114920
 2010-09-27 23:15:27 +00:00
Chris Lattner 9f06f911d1 the latest assembler that runs on powerpc 10.4 machines doesn't 
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.

llvm-svn: 114817
 2010-09-27 06:44:54 +00:00
Devang Patel 804fcd4794 Use DW_OP_fbreg when offset is based on frame register. 
llvm-svn: 114585
 2010-09-22 21:10:38 +00:00
Devang Patel 871d0b1b1c If FE forgot to provide a file name (usually it uses "stdin" as name in such situation) then make one up to ensure that debug info is not malformed. 
llvm-svn: 114119
 2010-09-16 20:57:49 +00:00
Michael J. Spencer 93c9b2ea93 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
 2010-09-13 23:59:48 +00:00
Benjamin Kramer 65550d7cea Fix linux/msvc build, move include. 
llvm-svn: 113776
 2010-09-13 20:04:49 +00:00
Michael J. Spencer dc38d36ccb CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally. 
llvm-svn: 113632
 2010-09-10 21:14:25 +00:00
Chris Lattner 419d0aa0ed add a comment about where this should eventually move. 
llvm-svn: 113117
 2010-09-05 20:33:40 +00:00
Devang Patel 854ad26ae2 There is no need to use .set here. 
Thanks Chris!

llvm-svn: 112900
 2010-09-02 23:01:10 +00:00
Devang Patel da3ef85460 Fix .debug_range for linux. Patch by Krister Wombell. 
llvm-svn: 112830
 2010-09-02 16:43:44 +00:00
Devang Patel ea63639da5 Use absolute label for DW_AT_stmt_list if a target does not prefer offset here. 
This patch was developed on top of original patch by Artur Pietrek.

llvm-svn: 112678
 2010-08-31 23:50:19 +00:00
Devang Patel 86ec8b3a3f Reapply r112623. Included additional check for unused byval argument. 
llvm-svn: 112659
 2010-08-31 22:22:42 +00:00
Devang Patel 529f248eb4 Revert r112623. It is causing self host build failures. 
llvm-svn: 112631
 2010-08-31 19:41:03 +00:00
Devang Patel 8559932d36 Remember byval argument's frame index during argument lowering and use this info to emit debug info. 
Fixes Radar 8367011.

llvm-svn: 112623
 2010-08-31 18:50:09 +00:00
Devang Patel 2cfc3af181 Simplify. 
llvm-svn: 112583
 2010-08-31 06:11:28 +00:00
Chris Lattner 13ee795c42 remove unions from LLVM IR. They are severely buggy and not 
being actively maintained, improved, or extended.

llvm-svn: 112356
 2010-08-28 04:09:24 +00:00
Devang Patel 4a213870db Revert r107202. It is not adding any value. 
llvm-svn: 111870
 2010-08-24 00:06:12 +00:00
Devang Patel a8652674e0 Handle qualified constants that are directly folded by FE. 
PR 7920.

llvm-svn: 111820
 2010-08-23 18:25:56 +00:00
Bill Wendling 578ee4070c Create the new linker type "linker_private_weak_def_auto". 
It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).

llvm-svn: 111684
 2010-08-20 22:05:50 +00:00
Bill Wendling 0d323aef46 Improve whitespace. 
llvm-svn: 111384
 2010-08-18 18:41:13 +00:00
Eli Friedman 7e2f4ce439 Until uleb/sleb are MC-ized, add a hack to make them work with ELF object 
emission.

llvm-svn: 111177
 2010-08-16 20:08:40 +00:00
Devang Patel 8e06a5eb47 Do not forget debug info for enums. Use named mdnode to keep track of these types. 
llvm-svn: 110712
 2010-08-10 20:01:20 +00:00
Devang Patel b219746c80 Handle TAG_constant for integers. 
llvm-svn: 110656
 2010-08-10 07:11:13 +00:00
Devang Patel 18ba0b4ac3 Simplify. 
llvm-svn: 110653
 2010-08-10 04:12:17 +00:00
Devang Patel b1e07b3f2a Drop "const". It does not add value here. 
llvm-svn: 110652
 2010-08-10 04:09:06 +00:00
Devang Patel 469c12d254 Do not include file static variable in pubnames list. 
Refactor and simplify code to avoid redundant checks.

llvm-svn: 110642
 2010-08-10 01:37:23 +00:00
Devang Patel 394a69ed52 Undo accidental commit. 
llvm-svn: 110623
 2010-08-09 23:28:52 +00:00
Devang Patel 4eda9abddb Simplify. Avoid redundant checks. 
llvm-svn: 110621
 2010-08-09 23:26:06 +00:00
Devang Patel c7cf14f5f6 Refactor. 
llvm-svn: 110607
 2010-08-09 21:39:24 +00:00
Devang Patel 6d9f9feb2b Refactoring. Update DbgVarible to handle queries itself. 
llvm-svn: 110600
 2010-08-09 21:01:39 +00:00
Devang Patel b6511a36b4 It is ok, and convenient, to pass descriptors by value. 
llvm-svn: 110590
 2010-08-09 20:20:05 +00:00
Devang Patel 406798a17d Rename a method. 
llvm-svn: 110586
 2010-08-09 18:51:29 +00:00
Owen Anderson a7aed18624 Reapply r110396, with fixes to appease the Linux buildbot gods. 
llvm-svn: 110460
 2010-08-06 18:33:48 +00:00
Owen Anderson bda59bd247 Revert r110396 to fix buildbots. 
llvm-svn: 110410
 2010-08-06 00:23:35 +00:00
Owen Anderson 755aceb5d0 Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396
 2010-08-05 23:42:04 +00:00
Devang Patel 6c378ac473 Use location entry only of the location described by DBG_VALUE is valid. 
llvm-svn: 110255
 2010-08-04 22:07:27 +00:00
Devang Patel 6d21f61b3f Fix typo in comment. 
llvm-svn: 110244
 2010-08-04 20:32:36 +00:00
Dan Gohman 2392287306 Change this llvm_unreachable to report_fatal_error, since it can 
be triggered by valid, if dubious, IR.

llvm-svn: 110240
 2010-08-04 18:51:09 +00:00
Devang Patel 0e60e67efb If a variable is spilled by code generator then use DW_OP_fbreg to describe its location on stack. 
llvm-svn: 110234
 2010-08-04 18:40:52 +00:00
Devang Patel d070128de5 Free DbgScope created for dead functions. 
llvm-svn: 110045
 2010-08-02 17:32:15 +00:00
Bill Wendling d9900542a6 Reference the personalities. Don't copy them into a new vector. 
llvm-svn: 109966
 2010-08-01 01:34:21 +00:00
Devang Patel 84a74779a1 It is FE's responsibility to emit proper directory name. 
llvm-svn: 109538
 2010-07-27 20:51:15 +00:00
Devang Patel 498877d055 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line. 
llvm-svn: 109302
 2010-07-24 00:53:22 +00:00
Devang Patel 28499f76c9 Revert r109262. 
llvm-svn: 109285
 2010-07-23 23:04:41 +00:00
Devang Patel 3032354bbe IF directory name is empty then try to extract one using absolute file name. 
llvm-svn: 109262
 2010-07-23 20:36:13 +00:00
Jim Grosbach 965a73a28c For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb 
rdar://8202967

llvm-svn: 109057
 2010-07-21 23:03:52 +00:00
Jim Grosbach a8683bb033 80 column and trailing whitespace cleanup 
llvm-svn: 109037
 2010-07-21 21:21:52 +00:00
Dan Gohman 093cb79d4b Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
 2010-07-21 18:54:18 +00:00
Stuart Hastings 61475c5c3c Correct line info for declarations/definitions. Radar 8063111. 
llvm-svn: 108784
 2010-07-19 23:56:30 +00:00
Devang Patel 18efced1a2 Fix PR 7662. 
Do not try to insert local variable info to a DIE used for function declaration.

llvm-svn: 108731
 2010-07-19 17:53:55 +00:00
Daniel Dunbar 419197cc4d Target: Give the TargetAsmParser access to the TargetMachine. 
- Unfortunate, but necessary for now to handle subtarget instruction matching. Eventually we should factor out the lower level target machine information so we don't need to do this.

llvm-svn: 108664
 2010-07-19 00:33:49 +00:00
Daniel Dunbar 7f5bf5ae2a MC: Move several clients to using AsmParser constructor function. 
llvm-svn: 108645
 2010-07-18 18:31:33 +00:00
Bill Wendling ac67e99d53 Use isPrologLabel() instead of checking the opcode directly. 
llvm-svn: 108628
 2010-07-17 19:18:44 +00:00
Bill Wendling bf8370ff36 Consider this function: 
void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568
 2010-07-16 22:51:10 +00:00
Bill Wendling 499f797cdd Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and 
thus is a much more meaningful name.

llvm-svn: 108563
 2010-07-16 22:20:36 +00:00
Jakob Stoklund Olesen 37c42a3d02 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway. 
TII::isMoveInstr is going tobe completely removed.

llvm-svn: 108507
 2010-07-16 04:45:42 +00:00
Chris Lattner 28fd6785bc a more graceful fix for test/Other/inline-asm-newline-terminator.ll, 
follow on to r103765

llvm-svn: 108390
 2010-07-15 00:37:34 +00:00
Stuart Hastings d08fb75aaa Reverting r107918 and r107919. Radar 8063111. 
llvm-svn: 107930
 2010-07-08 23:25:39 +00:00
Devang Patel 4c6bd6612f Relax assertion. In optimized code, it is possible that first instruction is coming from a inlined function. 
This fixes PR7596 .

llvm-svn: 107923
 2010-07-08 22:39:20 +00:00
Stuart Hastings 43d226deea Fix decl/def debug info for template functions. Radar 8063111. 
llvm-svn: 107919
 2010-07-08 22:28:59 +00:00
Devang Patel 9c160e1213 Reuse DIEInteger for 1. This is frequently used while emitting an attribute using dwarf::DW_FORM_flag form. 
llvm-svn: 107903
 2010-07-08 20:10:35 +00:00
Devang Patel a37a95ea2f One MDNode may be used to create regular DIE as well as abstract DIE. 
Keep track of abstract subprogram DIEs. 

llvm-svn: 107822
 2010-07-07 22:20:57 +00:00
Devang Patel 9a0339fc1f Rename couple of maps. 
llvm-svn: 107810
 2010-07-07 20:49:57 +00:00
Devang Patel 30265c4f8b 80 cols. 
llvm-svn: 107807
 2010-07-07 20:12:52 +00:00
Dale Johannesen 4d887f7ca7 Propagate the AlignStack bit in InlineAsm's to the 
PrologEpilog code, and use it to determine whether
the asm forces stack alignment or not.  gcc consistently
does not do this for GCC-style asms; Apple gcc inconsistently
sometimes does it for asm blocks.  There is no
convenient place to put a bit in either the SDNode or
the MachineInstr form, so I've added an extra operand
to each; unlovely, but it does allow for expansion for
more bits, should we need it.  PR 5125.  Some
existing testcases are affected.
The operand lists of the SDNode and MachineInstr forms
are indexed with awesome mnemonics, like "2"; I may
fix this someday, but not now.  I'm not making it any
worse.  If anyone is inspired I think you can find all
the right places from this patch.

llvm-svn: 107506
 2010-07-02 20:16:09 +00:00
Bill Wendling 504055ce9e Make the "linker_private" linkage type emit a non-weak symbol to the file. It 
will still be stripped by the linker when it generates the final image.

llvm-svn: 107440
 2010-07-01 22:38:24 +00:00
Bill Wendling 03bcd6ecc8 Implement the "linker_private_weak" linkage type. This will be used for 
Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.

For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:

      .globl l_objc_msgSend_fixup_alloc
      .weak_definition l_objc_msgSend_fixup_alloc
      .section __DATA, __objc_msgrefs, coalesced
      .align 3
l_objc_msgSend_fixup_alloc:
       .quad   _objc_msgSend_fixup
       .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

Currently only supported on Darwin platforms.

llvm-svn: 107433
 2010-07-01 21:55:59 +00:00
Devang Patel 429397529a Do not require line number entry for undefined local variable. 
This is a regression caused by r106792 and caught by gdb testsuite.

llvm-svn: 107430
 2010-07-01 21:38:08 +00:00
Daniel Dunbar 02877d6e85 MC: Pass the target instance to the AsmParser constructor. 
llvm-svn: 107426
 2010-07-01 20:41:56 +00:00
Mikhail Glushenkov 4721ad855e Trailing whitespace. 
llvm-svn: 107360
 2010-07-01 01:00:22 +00:00
Devang Patel c5b3109bec Do not construct DIE for already processed MDNode. 
llvm-svn: 107237
 2010-06-30 01:40:11 +00:00
Devang Patel 648df7bf64 Add variables into a scope before constructing scope DIE otherwise variables won't be included DIE tree. 
llvm-svn: 107228
 2010-06-30 00:11:08 +00:00
Bill Wendling 3632171750 Revert r107205 and r107207. 
llvm-svn: 107215
 2010-06-29 22:34:52 +00:00
Devang Patel be30551600 Print InlinedAt location. 
llvm-svn: 107214
 2010-06-29 22:29:15 +00:00
Bill Wendling 1767723dbe Introducing the "linker_weak" linkage type. This will be used for Objective-C 
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

       .globl l_objc_msgSend_fixup_alloc
       .weak_definition l_objc_msgSend_fixup_alloc
       .section __DATA, __objc_msgrefs, coalesced
       .align 3
l_objc_msgSend_fixup_alloc:
        .quad   _objc_msgSend_fixup
        .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

llvm-svn: 107205
 2010-06-29 21:24:00 +00:00
Devang Patel 24bc1b5b2f Do not hardcode DW_AT_stmt_list value. 
Inspired by Artur Pietrek.

llvm-svn: 107202
 2010-06-29 20:17:53 +00:00
Devang Patel 1de21ec498 Use DW_FORM_addr for DW_AT_entry_pc. 
llvm-svn: 107085
 2010-06-28 22:22:47 +00:00
Devang Patel d10b2af260 Include inlined function in list of processed subprograms. 
llvm-svn: 107065
 2010-06-28 20:53:04 +00:00
Devang Patel f3b2db68c6 Preserve deleted function's local variables' debug info. 
Radar 8122864.

llvm-svn: 107027
 2010-06-28 18:25:03 +00:00
Devang Patel fb6f22f010 Remove dead code. 
llvm-svn: 106990
 2010-06-28 05:59:13 +00:00
Devang Patel 5c0f85c7dd Collect debug info for optimized variables of inlined functions. 
llvm-svn: 106895
 2010-06-25 22:07:34 +00:00
Devang Patel c657c621b7 DBG_VALUE machine instruction pointing to undefined register for a variable justify a separate scope if the variable is inlined function's argument. 
Radar 8122864.

llvm-svn: 106792
 2010-06-24 21:51:19 +00:00
Devang Patel b6e058da18 Use single interface, using twine, to get named metadata. 
getNamedMetadata().

llvm-svn: 106518
 2010-06-22 01:19:38 +00:00
Devang Patel cbc6fd8493 Discard special LLVM prefix from linkage name. 
llvm-svn: 106516
 2010-06-22 01:06:05 +00:00
Devang Patel ad51735794 Do not rely on Twine temporaries to survive. 
llvm-svn: 106515
 2010-06-22 01:01:58 +00:00
Dan Gohman 6e681a5fbe Give NamedRegionTimer an Enabled flag, allowing all its clients to 
switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }

llvm-svn: 106285
 2010-06-18 15:56:31 +00:00
Devang Patel a6d20f446f Use separate named MDNode to hold each function's local variable info. 
This speeds up local variable handling in DwarfDebug.

llvm-svn: 106075
 2010-06-16 00:53:55 +00:00
Eric Christopher b672ab9b53 Don't emit the linkage for initializer label for mach-o tls. 
llvm-svn: 106073
 2010-06-16 00:27:30 +00:00
Stuart Hastings 9b5005cd4b Added a comment. 
llvm-svn: 106063
 2010-06-15 23:06:30 +00:00
Stuart Hastings afe54f1625 Support for nested functions/classes in debug output. (Again.) Radar 7424645. 
llvm-svn: 105828
 2010-06-11 20:08:44 +00:00
Stuart Hastings 3ca391027f Revert 105492 & 105493 due to a testcase regression. Radar 7424645. 
llvm-svn: 105511
 2010-06-05 00:39:29 +00:00
Stuart Hastings 7c015988fe Support for nested functions/classes in debug output. Radar 7424645. 
llvm-svn: 105492
 2010-06-04 22:36:03 +00:00
Eric Christopher f67fe3b1e8 One underscore, not two. 
llvm-svn: 105379
 2010-06-03 04:02:59 +00:00
Devang Patel c2254f6b98 Skip identical instruction while calculating DBG_VALUE range. 
llvm-svn: 105340
 2010-06-02 19:05:13 +00:00
Devang Patel 21ccf05b4c Use local small vector. 
llvm-svn: 105332
 2010-06-02 16:42:51 +00:00
Devang Patel d43e0ca916 Ignore line number of debug value in undefined register. 
llvm-svn: 105292
 2010-06-01 21:43:09 +00:00
Stuart Hastings c1e216583f Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645. 
llvm-svn: 104953
 2010-05-28 16:41:07 +00:00
Devang Patel 7a9dedf0ab Do not drop location info for inlined function args. 
llvm-svn: 104884
 2010-05-27 20:25:04 +00:00
Devang Patel 5e6b71ce34 inlined function's arguments need a label to mark the start point because they are not directly attached to current function. 
llvm-svn: 104848
 2010-05-27 16:47:30 +00:00
Stuart Hastings 8e99e50d08 Support for nested functions/classes in debug output. Radar 7424645. 
llvm-svn: 104841
 2010-05-27 16:16:54 +00:00
Devang Patel 6b9a9fe207 Simplify. Eliminate unneeded debug_loc entry. 
llvm-svn: 104785
 2010-05-26 23:55:23 +00:00
Devang Patel acc32a5c19 There is no need to force an line number entry (using previous location) for a temp label at unknown location. 
llvm-svn: 104740
 2010-05-26 21:23:46 +00:00
Devang Patel 002d54ddc9 Identify instructions, that needs a label to mark debug info entity, in advance. This simplifies beginScope(). 
llvm-svn: 104720
 2010-05-26 19:37:24 +00:00
Devang Patel 95fcc96752 Remove dead code. 
llvm-svn: 104706
 2010-05-26 17:42:50 +00:00
Devang Patel 5a5e0bc3b5 Do not construct location list backword! 
llvm-svn: 104705
 2010-05-26 17:29:32 +00:00
Devang Patel 9fc11706e3 First cut at supporting .debug_loc section. 
This is used to track variable information.

llvm-svn: 104649
 2010-05-25 23:40:22 +00:00
Eric Christopher f3925438e5 Move the verbose asm output up a bit so it can be used in the special cases 
as well.

llvm-svn: 104642
 2010-05-25 21:49:43 +00:00
Eric Christopher 19a4b843cc Add support for initialized global data for darwin tls. Update comments 
and testcases accordingly.

llvm-svn: 104635
 2010-05-25 21:28:50 +00:00
Devang Patel 51b37e0bd8 Do not emit line number entries for unknown debug values. 
This fixes recent regression in store.exp from gdb testsuite.

llvm-svn: 104524
 2010-05-24 18:26:49 +00:00
Nicolas Geoffray c5327226e4 Encode the Caml frametable by following what the comment says: the number of descriptors 
is first emitted, and StackOffsets are emitted in 16 bits.

llvm-svn: 104488
 2010-05-24 12:24:11 +00:00
Eric Christopher 6fdea1bda8 Add full bss data support for darwin tls variables. 
llvm-svn: 104414
 2010-05-22 00:10:22 +00:00
Devang Patel 4a8e6e83dc Collect variable information during endFunction() instead of beginFunction(). 
llvm-svn: 104412
 2010-05-22 00:04:14 +00:00
Devang Patel 1782aae355 Simplify 
llvm-svn: 104338
 2010-05-21 18:49:09 +00:00
Devang Patel fbd6c45e06 Simplify. 
llvm-svn: 104302
 2010-05-21 00:10:20 +00:00
Devang Patel 490c8ab76d Refactor. 
llvm-svn: 104265
 2010-05-20 19:57:06 +00:00
Devang Patel e1c53f29d3 Split DbgVariable. Eventually, variable info will be communicated through frame index, or DBG_VALUE instruction, or collection of DBG_VALUE instructions. Plus each DbgVariable may not need a label. 
llvm-svn: 104233
 2010-05-20 16:36:41 +00:00
Eric Christopher 27e7ffc7d4 Partial code for emitting thread local bss data. 
llvm-svn: 104197
 2010-05-20 00:49:07 +00:00
Devang Patel a08130864e Revert r104165. 
llvm-svn: 104172
 2010-05-19 21:58:28 +00:00
Devang Patel 0fe341e2e2 There is no need to maintain InsnsBeginScopeSet separately. 
llvm-svn: 104165
 2010-05-19 21:26:53 +00:00
Devang Patel 36debf8046 Do not forget to mark prcessed arguments. 
llvm-svn: 103822
 2010-05-14 21:55:50 +00:00
Bill Wendling 95f6ebcb37 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what 
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.

llvm-svn: 103802
 2010-05-14 21:14:32 +00:00
Devang Patel e0a94bfe9f Add support to preserve type info for the variables that are removed by the optimizer. 
llvm-svn: 103798
 2010-05-14 21:01:35 +00:00
Daniel Dunbar 3439ed6324 Inline Asm: Ensure buffer is newline terminated to match how the text is printed. 
- This is a hack, but I can't decide the best place to handle this. Chris?

llvm-svn: 103765
 2010-05-14 04:31:50 +00:00
Duncan Sands 2576db727b Remove unused variable. Tweak a comment while there. 
llvm-svn: 103586
 2010-05-12 07:11:33 +00:00
Nathan Jeffords 76a07580ad updated support for the COFF .linkonce 
Now, the .linkonce directive is emitted as part of MCSectionCOFF::PrintSwitchToSection instead of AsmPrinter::EmitLinkage since it is an attribute of the section the symbol was placed into not the symbol itself.

llvm-svn: 103568
 2010-05-12 04:26:09 +00:00
Devang Patel 1a0df9a80e Enable multiple Compile Units in one module. 
This means now 'llvm-ld a.bc b.bc' will preserve debug info appropriately.

llvm-svn: 103439
 2010-05-10 22:49:55 +00:00
Devang Patel 0625af2a88 Instead of just verifying compile unit, verify entire type, variable, namespace etc.. 
llvm-svn: 103327
 2010-05-07 23:33:41 +00:00
Devang Patel cbe7a8508a Remove DIGlobal. 
llvm-svn: 103325
 2010-05-07 23:19:07 +00:00
Devang Patel 8d6a2b7428 Verify entire type descriptor not just tag. 
llvm-svn: 103303
 2010-05-07 21:45:47 +00:00
Devang Patel 32cc43c242 Wrap const MDNode * inside DIDescriptor. 
llvm-svn: 103295
 2010-05-07 20:54:48 +00:00
Devang Patel cfa8e9d45f Avoid DIDescriptor::getNode(). Use overloaded operators instead. 
llvm-svn: 103272
 2010-05-07 18:11:54 +00:00
Dan Gohman 7421ae48bf Disable the new unknown-location code for now. It causes a major 
increase in the debug line info section, and it's causing
regressions in a gdb testsuite.

llvm-svn: 103226
 2010-05-07 01:08:53 +00:00
Dan Gohman 47d04e3e41 Update LabelsBeforeInsn also, when creating unknown-position labels. 
llvm-svn: 103145
 2010-05-06 00:29:41 +00:00
Chris Lattner 35096e82c5 Fix PR7054 - Assertion `Symbol->isUndefined() && "Cannot define a symbol twice!"' failed. 
Users can write broken code that emits the same label twice with asm renaming,
detect this and emit a fatal backend error instead of aborting.

llvm-svn: 103140
 2010-05-06 00:05:37 +00:00
Dan Gohman 50849c63e4 Emit debug info for MachineInstrs with unknown debug locations, instead 
of just letting them inherit the debug locations of adjacent instructions.

Debug info should aim to be either accurate or absent.

llvm-svn: 103135
 2010-05-05 23:41:32 +00:00
Devang Patel 075e9b5d66 Set DW_AT_APPLE_omit_frame_ptr in endFunction() where MachineFunction is available all the time. 
llvm-svn: 103001
 2010-05-04 06:15:30 +00:00
Dale Johannesen 1ebb395cee Don't count debug info as instructions. This was 
preventing the emission of the NOP on Darwin for a
function with no actual code.  From timberwolfmc
with TEST=optllcdbg.

llvm-svn: 102843
 2010-05-01 16:41:11 +00:00
Devang Patel b4e3b9025c Attach AT_APPLE_optimized attribute to optimized function's debug info. 
llvm-svn: 102743
 2010-04-30 19:38:23 +00:00
Devang Patel 080e4fb2f0 Print variable scope name in DEBUG_VALUE comment. Useful in some cases. e.g. 
##DEBUG_VALUE: runOnMachineFunction:this <- RDI+0
	##DEBUG_VALUE: runOnMachineFunction:fn <- RSI+0
	##DEBUG_VALUE: DeadDefs <- undef ## SimpleRegisterCoalescing.cpp:2706
	##DEBUG_VALUE: getRegInfo:this <- [%rsp+$56]+$0
	##DEBUG_VALUE: getTarget:this <- [%rsp+$56]+$0

llvm-svn: 102655
 2010-04-29 18:52:10 +00:00
Chris Lattner 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
Devang Patel 50c9431203 Emit debug info for byval parameters. 
llvm-svn: 102486
 2010-04-28 01:39:28 +00:00
Chris Lattner 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
Chris Lattner 72bdee4c10 remove a dead argument to EmitAlignment. 
llvm-svn: 102483
 2010-04-28 01:06:02 +00:00
Chris Lattner 9e06e53fc6 remove some default arguments to EmitAlignment. 
llvm-svn: 102482
 2010-04-28 01:05:45 +00:00
Devang Patel 173b2b9d05 Refactor. 
llvm-svn: 102481
 2010-04-28 01:03:09 +00:00
Devang Patel cfc76fdaf1 Use isReg(), isImm() and isFPImm(). 
llvm-svn: 102470
 2010-04-27 22:04:41 +00:00
Devang Patel 1f34c2727d Check operand type first. 
llvm-svn: 102468
 2010-04-27 21:49:04 +00:00
Devang Patel 1a0bbe25e3 Ignore DBG_VALUE instructions that points to undef values. 
llvm-svn: 102463
 2010-04-27 20:54:45 +00:00
Devang Patel 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
Evan Cheng eb828b6391 Do not count kill, implicit_def instructions as printed instructions. 
llvm-svn: 102453
 2010-04-27 19:38:45 +00:00
Chris Lattner 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
Chris Lattner 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
Chris Lattner 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
Devang Patel 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
Chris Lattner 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
Chris Lattner e80442aa6d Revert r102300/102301, which serious broke objc apps. 
llvm-svn: 102359
 2010-04-26 18:30:45 +00:00
Chris Lattner 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
Dan Gohman e9135cb3fb Revert 102135, 102129, 102127, 102106, 102104, 102102, 102012, 102004, 
because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.

llvm-svn: 102155
 2010-04-23 01:18:53 +00:00
Devang Patel 6adc5620ab Add comment. 
llvm-svn: 102129
 2010-04-22 20:56:35 +00:00
Devang Patel ea2744f4dc Adjust debug range offsets for isWeakForLinker() functions. 
llvm-svn: 102127
 2010-04-22 20:52:00 +00:00
Devang Patel 0fde4aeedd Rename InsnAfterLabelMap and InsnBeforeLabelMap. 
llvm-svn: 102106
 2010-04-22 18:43:35 +00:00
Devang Patel 53f530d44c Keep track of MCSymbol used to mark beginning of a function. 
llvm-svn: 102104
 2010-04-22 18:39:21 +00:00
Devang Patel bae14a1cab At this point Start and End are not null. 
llvm-svn: 102102
 2010-04-22 18:28:58 +00:00
Devang Patel 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
Devang Patel 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
Evan Cheng 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
Chris Lattner 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
Dan Gohman 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
Devang Patel 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
Dan Gohman 53d4a08d2b Add const qualifiers to TargetLoweringObjectFile usage. 
llvm-svn: 101640
 2010-04-17 16:44:48 +00:00
Dan Gohman 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
Devang Patel 12563b3495 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Dan Gohman b29cda9b3c Fix a bunch of namespace polution. 
llvm-svn: 101376
 2010-04-15 17:08:50 +00:00
Dan Gohman bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Devang Patel 3d6c40c616 Add comment. 
llvm-svn: 101317
 2010-04-15 00:02:49 +00:00
Devang Patel 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
Devang Patel b08ccb62d5 Remove dead code. 
llvm-svn: 101314
 2010-04-14 23:54:13 +00:00
Devang Patel b7eadda495 Clear MachineInstr->MCSymbol maps at the end of a function. 
llvm-svn: 101202
 2010-04-14 01:18:28 +00:00
Devang Patel 12d150ea43 Do not include types without any definition in pubtypes list. 
llvm-svn: 101171
 2010-04-13 20:35:04 +00:00
Devang Patel 541019ddec Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function. 
llvm-svn: 100867
 2010-04-09 16:04:20 +00:00
Chandler Carruth 825989ab63 Add a missing dependency to this library when building with CMake. 
llvm-svn: 100852
 2010-04-09 05:55:25 +00:00
Chris Lattner 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
Devang Patel 359b013129 Rename a function. 
llvm-svn: 100797
 2010-04-08 18:43:56 +00:00
Chris Lattner 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
Devang Patel 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
Devang Patel 2abed283e5 Remove dead code. 
llvm-svn: 100771
 2010-04-08 15:48:02 +00:00
Devang Patel adfd4df12c Delete out of date comment. 
llvm-svn: 100769
 2010-04-08 15:41:13 +00:00
Devang Patel f1d5a1e994 Refactor. 
llvm-svn: 100768
 2010-04-08 15:37:09 +00:00
Benjamin Kramer a6769269f3 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
Chris Lattner 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
Chris Lattner 2104b8d36e rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner b50e795369 tidy up 
llvm-svn: 100700
 2010-04-07 22:29:10 +00:00
Chris Lattner 29233c0458 add a comment line that got dropped 
llvm-svn: 100638
 2010-04-07 18:10:38 +00:00
Benjamin Kramer f2351a7a6e Remove unused method. 
llvm-svn: 100620
 2010-04-07 11:23:46 +00:00
Torok Edwin 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
Bill Wendling fcc14141c7 Use the "NamedGroupTimer" class to categorize DWARF emission better. 
llvm-svn: 100616
 2010-04-07 09:28:04 +00:00
Benjamin Kramer 43c275fa56 Use raw_ostream. 
llvm-svn: 100615
 2010-04-07 09:26:51 +00:00
Chris Lattner 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
Chris Lattner d62adaa54d remove another magic number. 
llvm-svn: 100606
 2010-04-07 05:27:36 +00:00
Dale Johannesen 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
Devang Patel 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. 
llvm-svn: 100586
 2010-04-06 23:53:48 +00:00
John McCall 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
Dale Johannesen b36c70913b Revert 100573, it's causing some testsuite problems. 
llvm-svn: 100578
 2010-04-06 22:45:26 +00:00
Dale Johannesen 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
Stuart Hastings 4bd3dd956f Reverting 100530 & 100531 due to regressions in the GDB test suite. 
llvm-svn: 100563
 2010-04-06 21:38:29 +00:00
Stuart Hastings 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
Chris Lattner 92aba5a817 propagate cookie management out one layer of function calls. 
llvm-svn: 100510
 2010-04-06 00:58:50 +00:00
Chris Lattner 59126b2500 report errors through LLVMContext's inline asm handler if available. 
llvm-svn: 100509
 2010-04-06 00:55:39 +00:00
Devang Patel fc4a1db23b Remove unnecessary include. 
llvm-svn: 100505
 2010-04-06 00:38:32 +00:00
Chris Lattner 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
Chris Lattner 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
Bill Wendling 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
Chris Lattner 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
Chris Lattner 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
Chris Lattner 64a168efb6 privatize more stuff, eliminate vtables. 
llvm-svn: 100410
 2010-04-05 05:32:45 +00:00
Chris Lattner acda87bdb1 reprivatize now that DwarfWriter is gone. 
llvm-svn: 100409
 2010-04-05 05:31:04 +00:00
Chris Lattner da790ea006 prune #includes, MMI can never be null 
llvm-svn: 100408
 2010-04-05 05:28:23 +00:00
Chris Lattner 3f3fb970e4 prune #includes, realize the MMI can never be null. 
llvm-svn: 100407
 2010-04-05 05:24:55 +00:00
Chris Lattner 10cb0f4338 finally blast DwarfWriter away. 
llvm-svn: 100406
 2010-04-05 05:12:59 +00:00
Chris Lattner f0d6bd3ef4 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 f5d0636850 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 196dbdc160 eliminate DwarfDebug::shouldEmit, which is the same now as MMI::hasDebugInfo 
llvm-svn: 100386
 2010-04-05 03:52:55 +00:00
Chris Lattner d2f5062c6d fix a regression on 2009-08-17-DebugInfo.m 
llvm-svn: 100385
 2010-04-05 03:49:26 +00:00
Chris Lattner 7cfa70e9b3 fastisel doesn't need DwarfWriter, remove some tendricles. 
llvm-svn: 100381
 2010-04-05 02:19:28 +00:00
Chris Lattner 626cb66fdb just have all targets create the DwarfWriter. 
llvm-svn: 100377
 2010-04-05 00:42:55 +00:00
Chris Lattner eeaa6d67a2 nuke DwarfPrinter 
llvm-svn: 100375
 2010-04-05 00:27:29 +00:00
Chris Lattner fd79502e08 make DwarfException not inherit from DwarfPrinter. 
llvm-svn: 100374
 2010-04-05 00:26:50 +00:00
Chris Lattner 5a00dea332 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 3a383cb7d9 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 aabc6041de Move EmitFrameMoves into AsmPrinter. 
llvm-svn: 100371
 2010-04-04 23:41:46 +00:00
Chris Lattner 8423cae590 simplify code and reduce indentation. 
llvm-svn: 100369
 2010-04-04 23:31:58 +00:00
Chris Lattner 70a4fcea1e now that the magic is dispelled, move EmitSectionOffset to AsmPrinter. 
llvm-svn: 100368
 2010-04-04 23:25:33 +00:00
Chris Lattner 324c86600d 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 d442aa368d 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 e58b547460 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 0d3f3bdd3c add some assertions to EmitSectionOffset. 
llvm-svn: 100364
 2010-04-04 23:06:31 +00:00
Chris Lattner 1fbf53b970 stop emitting some dead L labels. 
llvm-svn: 100363
 2010-04-04 23:02:02 +00:00
Chris Lattner 6629ca978e 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 46355d87a8 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 78528f9a36 simplify EmitSectionOffset a little bit, improve comments. 
llvm-svn: 100360
 2010-04-04 22:25:14 +00:00
Chris Lattner 638b3e0000 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 c7cc815522 eliminate the "isEH" argument to EmitSectionOffset. 
llvm-svn: 100355
 2010-04-04 21:31:54 +00:00
Chris Lattner e239fa05cd 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 e619c0d3e9 move some more stuff to asmprinter. 
llvm-svn: 100351
 2010-04-04 20:20:50 +00:00
Chris Lattner 07c1b94faa simplify some code. 
llvm-svn: 100350
 2010-04-04 20:10:41 +00:00
Chris Lattner b75af3c5a9 move EmitEncodingByte to AsmPrinter. 
llvm-svn: 100349
 2010-04-04 20:04:21 +00:00
Chris Lattner baf2be0561 move EmitCFAByte to AsmPrinter. 
llvm-svn: 100348
 2010-04-04 20:01:25 +00:00
Chris Lattner f1429f1fe3 inline EmitDifference away. 
llvm-svn: 100347
 2010-04-04 19:58:12 +00:00
Chris Lattner 4e4549deea resolve a fixme. 
llvm-svn: 100346
 2010-04-04 19:28:59 +00:00
Chris Lattner a179b52361 move gettemplabel and getdwlabel to AsmPrinter and rename 
them for consistency.

llvm-svn: 100345
 2010-04-04 19:25:43 +00:00
Chris Lattner 9efd118938 move uleb/sleb printing into AsmPrinter from DwarfPrinter. 
llvm-svn: 100344
 2010-04-04 19:09:29 +00:00
Chris Lattner 2b40a207bc more interface cleanup make some helpers static functions. 
llvm-svn: 100343
 2010-04-04 18:58:53 +00:00
Chris Lattner 7bde8c07a7 clean up the asmprinter header and privatize some stuff. 
llvm-svn: 100342
 2010-04-04 18:52:31 +00:00
Chris Lattner baa2c972e9 use stringref instead of strtol to avoid errno gymnastics. 
llvm-svn: 100341
 2010-04-04 18:42:18 +00:00
Chris Lattner 1e15869d1f split inline asm support out to its own .cpp file. 
llvm-svn: 100340
 2010-04-04 18:34:07 +00:00
Chris Lattner 8ff29c523e inline processDebugLoc and simplify it. 
llvm-svn: 100339
 2010-04-04 18:18:51 +00:00
Chris Lattner c334d80b0d minor tidying. 
llvm-svn: 100338
 2010-04-04 18:16:38 +00:00
Chris Lattner 4a4710a055 clean up the asmprinter interface a bit, rename a few 
"Print" methods to "Emit".  Emit is something that goes
to an mc streamer, Print is something that goes to a
raw_ostream (for inline asm) 

llvm-svn: 100337
 2010-04-04 18:14:01 +00:00
Chris Lattner 21dc46e256 remove TargetMachine.h #include, also, TRI isn't used frequently 
enough to warrant caching in AsmPrinter, so remove it.

llvm-svn: 100336
 2010-04-04 18:06:11 +00:00
Chris Lattner 2cf5f9ec05 lazily allocate the GCMetadataPrinters map and remove DenseMap 
from the AsmPrinter interface.

llvm-svn: 100331
 2010-04-04 17:57:56 +00:00
Chris Lattner d20699bc87 Momentous day: remove the "O" member from AsmPrinter. Now all 
"asm printering" happens through MCStreamer.  This also 
Streamerizes PIC16 debug info, which escaped my attention.

This removes a leak from LLVMTargetMachine of the 'legacy'
output stream.

llvm-svn: 100327
 2010-04-04 08:18:47 +00:00
Chris Lattner 462720b1b6 now that all operand printing happens to specified streams, we can 
print function level inline asm with EmitInlineAsm instead of writing
it directly to "O".

llvm-svn: 100326
 2010-04-04 07:50:12 +00:00
Chris Lattner 1198002c81 remove the raw_ostream from various dwarf printing things. 
The only thing left is LEB printing, which uses EmitRawText
for now.

llvm-svn: 100325
 2010-04-04 07:48:20 +00:00
Chris Lattner ef8240bbac mcize the gc metadata printing stuff. 
llvm-svn: 100324
 2010-04-04 07:39:04 +00:00
Chris Lattner dd89ce9a82 use EmitRawText instead of O in DwarfPrinter. 
llvm-svn: 100323
 2010-04-04 07:25:52 +00:00
Chris Lattner 3bb09768cb fix PrintAsmOperand and PrintAsmMemoryOperand to pass down 
raw_ostream to print to.

llvm-svn: 100313
 2010-04-04 05:29:35 +00:00
Chris Lattner 0124fe38a6 change this back too 
llvm-svn: 100310
 2010-04-04 05:09:10 +00:00
Chris Lattner aa70abba05 check in what I tested. :( 
llvm-svn: 100309
 2010-04-04 05:08:10 +00:00
Chris Lattner f64c982943 MMI is always available, rename O -> OS in printInlineAsm. 
llvm-svn: 100308
 2010-04-04 05:07:45 +00:00
Chris Lattner 76c564b1bb change a ton of code to not implicitly use the "O" raw_ostream 
member of AsmPrinter.  Instead, pass it in explicitly.

llvm-svn: 100306
 2010-04-04 04:47:45 +00:00
Chris Lattner f33c7fcc28 asmstreamerize the .size directive for function bodies, force clients 
of printOffset to pass in a stream to print to.

llvm-svn: 100296
 2010-04-03 22:28:33 +00:00
Chris Lattner c6d67d4ca5 emit the cygwin stub thing through mcstreamer. 
llvm-svn: 100295
 2010-04-03 22:19:41 +00:00
Chris Lattner 1716721df1 add a twine form of MCStreamer::EmitRawText, and mc'ize 
a few more things in AsmPrinter.cpp.

llvm-svn: 100294
 2010-04-03 22:12:35 +00:00
Chris Lattner 86d61b5837 start moving towards emitting inline asm statements with 
EmitInlineAsm.  However, this attempt is foiled by operands
being emitted directly to "O" so I'll have to do some surgery
and finish MCizing the world.

llvm-svn: 100291
 2010-04-03 22:01:50 +00:00
Chris Lattner 8a87fb7633 add a new EmitInlineAsm function to asmprinter to handle inline asm. 
If we have an MCAsmStreamer, we continue to emit asm textually, 
otherwise we (currently) emit an error to errs and ignore it.

llvm-svn: 100289
 2010-04-03 21:35:55 +00:00
Chris Lattner fed39fa7b3 mc'ize comment printing around file scope inline asm. 
llvm-svn: 100288
 2010-04-03 21:13:18 +00:00
Chris Lattner 915c5f9862 Switch the code generator (except the JIT) onto the new DebugLoc 
representation.  This eliminates the 'DILocation' MDNodes for 
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before.  Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209
 2010-04-02 19:42:39 +00:00
Devang Patel 18737b2a81 Revert r100117. 
llvm-svn: 100145
 2010-04-01 22:47:29 +00:00
Devang Patel 15676e5167 Do not eagerly record known previous location. DBG_VALUE may not cause a new label due to one or other reason. 
llvm-svn: 100134
 2010-04-01 20:22:44 +00:00
Devang Patel 1a55ef0427 Skip instructions until new scope is seen. 
llvm-svn: 100117
 2010-04-01 17:32:01 +00:00
Devang Patel 4c603b1c4e Cosmetic changes. 
Update comment, rename a local variable.

llvm-svn: 100116
 2010-04-01 17:16:48 +00:00
Stuart Hastings 7f89a0ac88 Reverting 100048; it broke two Frontend debug info tests. 
llvm-svn: 100058
 2010-03-31 23:08:46 +00:00
Stuart Hastings f3e5afd6d3 Debug info can now properly represent functions inside classes inside other functions. Partial fix for Radar 7424645. 
llvm-svn: 100048
 2010-03-31 21:10:54 +00:00
Benjamin Kramer 96956ed0ff Reduce string trashing. 
llvm-svn: 100038
 2010-03-31 20:15:45 +00:00
Benjamin Kramer 74729ae094 DwarfDebug: Allocate DIEValues with a BumpPtrAllocator. Most of them are 
POD-like anyway, so we don't even care about calling their d'tors (DIEBlock
being the exception).

~6% less mallocs and ~1% compile time improvement on clang -O0 -g oggenc.c

llvm-svn: 100035
 2010-03-31 19:34:01 +00:00
Chris Lattner 17d38594fe reduce indentation 
llvm-svn: 99999
 2010-03-31 06:09:04 +00:00
Chris Lattner 71696ef1ad tidy up 
llvm-svn: 99998
 2010-03-31 06:06:37 +00:00
Chris Lattner 03e1b5ab5c MI != 0 is checked in the assert right above this. 
llvm-svn: 99995
 2010-03-31 05:42:48 +00:00
Chris Lattner 848c7d2e49 use the isDebugValue() predicate and pop_back_val() 
llvm-svn: 99993
 2010-03-31 05:39:57 +00:00
Chris Lattner 8d2fe28910 assert is a function-like macro, not a control flow operator. 
llvm-svn: 99992
 2010-03-31 05:36:29 +00:00
Chris Lattner 009de335ac add new apis for getting/setting !dbg metadata on 
instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.

llvm-svn: 99982
 2010-03-31 03:34:40 +00:00
Devang Patel 57c644f926 Ignore invalid metadata. 
llvm-svn: 99938
 2010-03-30 22:09:52 +00:00
Chris Lattner 9897043928 Rip out the 'is temporary' nonsense from the MCContext interface to 
create symbols.  It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

llvm-svn: 99902
 2010-03-30 18:10:53 +00:00
Devang Patel 67d94ab0f8 There is no need to fall through after processing DBG_VALUE machine instruction. 
llvm-svn: 99899
 2010-03-30 18:07:00 +00:00
Devang Patel 23b2ae621c Encode start location of debug value, communicated through DBG_VALUE machine instruction, in a variable's DIE. 
llvm-svn: 99845
 2010-03-29 22:59:58 +00:00
Chris Lattner 6efa201f7f use RAII for ExceptionTimer too 
llvm-svn: 99833
 2010-03-29 20:39:38 +00:00
Chris Lattner 4787975994 fix a variety of issues were we'd start DebugTimer but 
not stop it by using RAII.

llvm-svn: 99832
 2010-03-29 20:38:20 +00:00
Devang Patel bd477bef25 Refactor code to push DILocation prcessing into DwarfDebug.cpp from AsmPrinter.cpp. 
This is same as r99772 (which was reverted) with just one meaningful difference where two source lines exchanged their positions.

llvm-svn: 99816
 2010-03-29 17:20:31 +00:00
Devang Patel 1e8ccb5f8b Revert 99772. 
llvm-svn: 99778
 2010-03-28 21:23:37 +00:00