Commit Graph

193 Commits

Author SHA1 Message Date
Devang Patel
94c7ddb6f5 Until now all debug info MDNodes referred to a root MDNode, a compile unit. This simplified handling of these needs in dwarf writer. However, one side effect of this is that during link time optimization all these MDNodes are _not_ uniqued. In other words there will be N number of MDNodes describing "int", "char" and all other types, which would suddenly grow when each object file starts using libraries like STL.
MDNodes graph structure such that compiler unit keeps track of important MDNodes and update dwarf writer to process mdnodes top-down instead of bottom up.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 22:09:43 +00:00
Devang Patel
02e603f87a Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137689 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 23:47:24 +00:00
Devang Patel
3655a21b15 Continue to hoist uses of getCompileUnit() up. The goal is to get rid of uses of getCompileUnit().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 23:36:40 +00:00
Devang Patel
d30243402b This is somewhat déjà-vu, but avoid using getCompileUnit() as much as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 22:24:32 +00:00
Devang Patel
d0b5a5ece4 Refactor. Variables are part of compile unit so let CompileUnit create new variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 22:04:40 +00:00
Devang Patel
7a328270be There is no need to maintain a set to keep track of variables that use location expressions. In such cases, AT_location attribute's value will be a label.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137659 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 21:43:21 +00:00
Devang Patel
c890b19226 Fix warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137658 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 21:35:16 +00:00
Devang Patel
ff9dd0ac55 Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 21:24:36 +00:00
Devang Patel
5a1a67cd3f Simplify mapping to variable from its abstract variable info.
When a variable is inlined multiple places, abstract variable keeps name, location, type etc.. info and all other concreate instances of the variable directly refers to abstract variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 19:01:20 +00:00
Devang Patel
a098c506a2 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137632 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 18:40:16 +00:00
Devang Patel
59bc4093d5 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137631 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 18:35:42 +00:00
Devang Patel
dbc64af76d Refactor. A subprogram is part of compile unit so let CompileUnit construct new subprogram.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15 17:24:54 +00:00
Devang Patel
bf47fdb91c Start using LexicalScopes utility. No intetional functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 20:55:27 +00:00
Devang Patel
3737b89098 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135633 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20 23:00:27 +00:00
Evan Cheng
2d28617de2 Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for
better location welcome).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 22:29:13 +00:00
Devang Patel
133b09953c Use DebugLoc directly to map inlined functions' instructions to respective lexical scope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135302 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 21:25:44 +00:00
Devang Patel
1e479fb5c1 Eliminate redundant map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135278 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 16:38:42 +00:00
Devang Patel
9b4a172ac0 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135212 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 23:17:49 +00:00
Devang Patel
4f455d6f25 Eliminate redundant LLVMContext argument.
Improve DbgScope->dump() output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135207 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 22:30:56 +00:00
Devang Patel
d77ec6208c Simplify and delay extracting DebugLoc elements, scope and InlinedAt, as much as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 01:14:57 +00:00
Devang Patel
80efd4e96b Make provision to have floating point constants in .debug_loc expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08 16:49:43 +00:00
Devang Patel
c432907eca Do not drop constant values when a variable's content is described using .debug_loc entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132427 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 22:03:25 +00:00
Devang Patel
4243e67bd5 Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131194 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 19:22:19 +00:00
Rafael Espindola
f2b0423200 Dead code elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 14:56:22 +00:00
Devang Patel
c26f5447e3 Teach dwarf writer to handle complex address expression for .debug_loc entries.
This fixes clang generated blocks' variables' debug info.
Radar 9279956.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 02:22:40 +00:00
Devang Patel
3cbee30eac 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129402 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 22:53:02 +00:00
Devang Patel
860cf9693a Remove dead typedef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 17:43:12 +00:00
Devang Patel
b4c2bc2543 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128929 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 21:08:24 +00:00
Devang Patel
e62dfcf4b3 Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 16:53:49 +00:00
Jakob Stoklund Olesen
adb877d62e 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'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-26 02:19:36 +00:00
Jakob Stoklund Olesen
15a3ea0628 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25 17:20:59 +00:00
Devang Patel
23670e5b95 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128233 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 20:30:50 +00:00
Jakob Stoklund Olesen
28cf1156c9 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128114 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 22:33:08 +00:00
Andrew Trick
c1dbd5d9c3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 19:18:42 +00:00
Jakob Stoklund Olesen
e17232ee4d 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 00:21:41 +00:00
Devang Patel
0478c15d1e If argument numbering is encoded in metadata then emit arguments' debug info in that order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:58:55 +00:00
Cameron Zwarich
f754f50805 Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 16:30:32 +00:00
Devang Patel
f410608271 Enable DebugInfo support for COFF object files.
Patch by Nathan Jeffords!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:04:00 +00:00
Devang Patel
6c3ea9012e Merge .debug_loc entries whenever possible to reduce debug_loc size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 22:57:18 +00:00
Devang Patel
e7d93877c6 Add support to describe template value parameter in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-02 22:35:53 +00:00
Devang Patel
7e2cb11655 Add support to describe template parameter type in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124752 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-02 21:38:25 +00:00
Devang Patel
76a788c886 Emit 128 bit constant.
This fixes PR 8913 crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06 21:39:25 +00:00
Rafael Espindola
5c0556341e 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18 02:04:25 +00:00
Devang Patel
522ad74e4b Remove DW_AT_start_scope support. It is incomplete and superseeded by location entries support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12 23:20:42 +00:00
Devang Patel
cbbe287f8a s/beginScope/beginInstruction/g
s/endScope/endInstruction/g



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26 17:49:02 +00:00
Devang Patel
ee70fa77b4 Remove dead argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27 23:15:27 +00:00
Benjamin Kramer
12ea765632 Fix linux/msvc build, move include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13 20:04:49 +00:00
Devang Patel
9e3bd2c476 Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31 06:11:28 +00:00
Devang Patel
af608bd4fe Revert r107202. It is not adding any value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24 00:06:12 +00:00
Devang Patel
ecbd8e866b Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10 04:12:17 +00:00