Commit Graph

537 Commits

Author SHA1 Message Date
Devang Patel 53dc616170 Remove outdated FIXME comment.
llvm-svn: 136275
2011-07-27 22:00:01 +00:00
Devang Patel f098ce2757 It is quiet possible that inlined function body is split into multiple chunks of consequtive instructions. But, there is not any way to describe this in .debug_inline accelerator table used by gdb. However, describe non contiguous ranges of inlined function body appropriately using AT_range of DW_TAG_inlined_subroutine debug info entry.
llvm-svn: 136196
2011-07-27 00:34:13 +00:00
Devang Patel 613958c82c While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time.
llvm-svn: 136106
2011-07-26 18:09:53 +00:00
Devang Patel ddfe66e948 Refactor.
llvm-svn: 135633
2011-07-20 23:00:27 +00:00
Devang Patel 8fb9fd6769 There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.
llvm-svn: 135629
2011-07-20 22:18:50 +00:00
Devang Patel a59b24b090 Distinguish between two copies of one inlined variable.
llvm-svn: 135528
2011-07-19 22:31:15 +00:00
Devang Patel b7cc06366d Use DebugLoc directly to map inlined functions' instructions to respective lexical scope.
llvm-svn: 135302
2011-07-15 21:25:44 +00:00
Devang Patel f5f352dda5 Eliminate redundant map.
llvm-svn: 135278
2011-07-15 16:38:42 +00:00
Evan Cheng b46f3e24ba Reverting r135232. It's causing infinite looping in DbgScope::openInsnRange.
llvm-svn: 135254
2011-07-15 06:26:35 +00:00
Devang Patel 001c4f3ff0 Do not get confused by multiple empty lexical scopes inlined at one location.
llvm-svn: 135232
2011-07-15 00:30:39 +00:00
Devang Patel 4771159f9f Refactor.
llvm-svn: 135212
2011-07-14 23:17:49 +00:00
Devang Patel 1f9913fdb2 Eliminate redundant LLVMContext argument.
Improve DbgScope->dump() output.

llvm-svn: 135207
2011-07-14 22:30:56 +00:00
Devang Patel d5234bbced Simplify.
llvm-svn: 135127
2011-07-14 01:52:45 +00:00
Devang Patel 07d61edc30 Simplify and delay extracting DebugLoc elements, scope and InlinedAt, as much as possible.
llvm-svn: 135124
2011-07-14 01:14:57 +00:00
Devang Patel e07ebe32bf Simplify. Compile unit check inside hasValidLocation() did not add any value.
llvm-svn: 135118
2011-07-14 00:20:24 +00:00
Devang Patel a9195bcff0 Fix typo in DEBUG message.
llvm-svn: 135111
2011-07-14 00:04:53 +00:00
Devang Patel 2cce0d103d Add DEBUG messages.
llvm-svn: 135110
2011-07-14 00:03:58 +00:00
Devang Patel 2442a89eb9 Refactor.
llvm-svn: 134703
2011-07-08 17:09:57 +00:00
Devang Patel ed9fd45740 Make provision to have floating point constants in .debug_loc expressions.
llvm-svn: 134702
2011-07-08 16:49:43 +00:00
Devang Patel 53b050aec6 Add DEBUG message.
llvm-svn: 134643
2011-07-07 21:44:42 +00:00
Devang Patel b7a328ed27 Add DEBUG messages.
llvm-svn: 134572
2011-07-07 00:14:27 +00:00
Devang Patel 92ca8fc927 Remove dead code.
llvm-svn: 134561
2011-07-06 23:26:18 +00:00
Devang Patel f071d72c44 Handle debug info for i128 constants.
llvm-svn: 133821
2011-06-24 20:46:11 +00:00
Benjamin Kramer 440c3b7306 Use path API for path concatenation.
llvm-svn: 132668
2011-06-05 14:36:47 +00:00
Devang Patel e7181b5fdb A DBG_VALUE that truncates a range does not start another dbg value range.
llvm-svn: 132433
2011-06-01 23:00:17 +00:00
Devang Patel 324f843107 Do not drop constant values when a variable's content is described using .debug_loc entries.
llvm-svn: 132427
2011-06-01 22:03:25 +00:00
Devang Patel e9853f25ad Include global types, that are referenced through local variables, in debug_pubtypes list.
llvm-svn: 132371
2011-05-31 22:56:51 +00:00
Rafael Espindola d23bfb8a7a Make size computation less brittle.
llvm-svn: 132222
2011-05-27 22:05:41 +00:00
Devang Patel 3c6aed2d98 Select DW_AT_const_value size based on variable size.
llvm-svn: 132193
2011-05-27 16:45:18 +00:00
Devang Patel 354fa0798f Fix debug info for blocks' variable.
llvm-svn: 131940
2011-05-24 00:22:25 +00:00
Devang Patel faaa16ea2c Remove unnecessary comment.
llvm-svn: 131936
2011-05-23 23:16:14 +00:00
Devang Patel 34a6620748 Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
llvm-svn: 131194
2011-05-11 19:22:19 +00:00
Rafael Espindola 2fe0ee1ce2 Rename DwarfRequiresRelocationForStmtList to
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

llvm-svn: 131148
2011-05-10 20:35:05 +00:00
Devang Patel 589845d887 Do not ignore InlinedAt while walking up scope chain to find subprogram node.
llvm-svn: 131106
2011-05-09 22:14:49 +00:00
Devang Patel 17b532728b Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
llvm-svn: 130991
2011-05-06 16:57:54 +00:00
Rafael Espindola a716096677 Dead code elimination.
llvm-svn: 130984
2011-05-06 14:56:22 +00:00
Devang Patel d6141e1db2 Remove little used statistical counter.
llvm-svn: 130955
2011-05-05 22:00:08 +00:00
Devang Patel 73bc172493 If debug info for inlined function is missing then handle it gracefully.
llvm-svn: 130933
2011-05-05 17:54:26 +00:00
Rafael Espindola a75589171a Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.

While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.

llvm-svn: 130846
2011-05-04 17:44:06 +00:00
Devang Patel c981f6299e Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite.
llvm-svn: 130842
2011-05-04 16:34:02 +00:00
Devang Patel 543596d57b Even if the subprogram is going to use AT_specification, emit DW_AT_MIPS_linkage_name. This helps gdb and fixes var-path-expr.exp regression reported by gdb testsuite.
llvm-svn: 130794
2011-05-03 21:50:34 +00:00
Devang Patel e02e58528a If the front end has emitted llvm.dbg.cu and other debug info anchors (clang does it now) then use them directly. This saves one scan of entire module, to collect debug info, which in turns saves few machine cycles at compile time.
llvm-svn: 130759
2011-05-03 16:45:22 +00:00
Devang Patel 420ab5f180 Emit debug info for global variables first.
This works around a limitation in gdb which is reported by following inherit.exp test failures from gdb testsuite.

gdb.cp/inherit.exp: print g_vB.vB::vb
gdb.cp/inherit.exp: print g_vB.vB::vx
gdb.cp/inherit.exp: print g_vC.vC::vc
gdb.cp/inherit.exp: print g_vC.vC::vx
gdb.cp/inherit.exp: print g_vD.vB::vb
...

llvm-svn: 130702
2011-05-02 18:19:17 +00:00
Devang Patel 3e021533cd Teach dwarf writer to handle complex address expression for .debug_loc entries.
This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373
2011-04-28 02:22:40 +00:00
Devang Patel 77dc541b00 Simplify handling of variables with complex address (i.e. blocks variables)
llvm-svn: 130339
2011-04-27 22:45:24 +00:00
Devang Patel 2606f4d6d2 Rename a local variable.
llvm-svn: 130171
2011-04-25 23:05:21 +00:00
Devang Patel 8ce24133fd Rename a method to match what it really does.
s/addVariableAddress/addFrameVariableAddress/g

llvm-svn: 130170
2011-04-25 23:02:17 +00:00
Devang Patel 2688e4aba6 Do not drop a variable's complex address if it is not based on frame base.
Observed this while reading code, so I do not have a test case handy here.

llvm-svn: 130167
2011-04-25 22:52:55 +00:00
Devang Patel 1d6bbd41aa Let front-end tie subprogram declaration with subprogram definition directly.
llvm-svn: 130028
2011-04-22 23:10:17 +00:00
Devang Patel ad45d911bb Do not leak argument's DbgVariables.
llvm-svn: 130004
2011-04-22 18:09:57 +00:00