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516 Commits

Author SHA1 Message Date
Devang Patel
94f4eec7e4 Remove dead code. 
llvm-svn: 134561
 2011-07-06 23:26:18 +00:00
Devang Patel
91fee59b74 Handle debug info for i128 constants. 
llvm-svn: 133821
 2011-06-24 20:46:11 +00:00
Benjamin Kramer
3bd28deb10 Use path API for path concatenation. 
llvm-svn: 132668
 2011-06-05 14:36:47 +00:00
Devang Patel
03708bbb55 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
1a3058d727 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
a9f6a46390 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
2230168a0f Make size computation less brittle. 
llvm-svn: 132222
 2011-05-27 22:05:41 +00:00
Devang Patel
62a7038a9f Select DW_AT_const_value size based on variable size. 
llvm-svn: 132193
 2011-05-27 16:45:18 +00:00
Devang Patel
5bce258c3d Fix debug info for blocks' variable. 
llvm-svn: 131940
 2011-05-24 00:22:25 +00:00
Devang Patel
8a90970a54 Remove unnecessary comment. 
llvm-svn: 131936
 2011-05-23 23:16:14 +00:00
Devang Patel
344808fbe5 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
9b3e6a9cb4 Rename DwarfRequiresRelocationForStmtList to 
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

llvm-svn: 131148
 2011-05-10 20:35:05 +00:00
Devang Patel
38193e7550 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
188fd17fe4 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
59462d8ae3 Dead code elimination. 
llvm-svn: 130984
 2011-05-06 14:56:22 +00:00
Devang Patel
99147805e4 Remove little used statistical counter. 
llvm-svn: 130955
 2011-05-05 22:00:08 +00:00
Devang Patel
3d0c5dc9fd 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
8346c59e6a 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
a6e69a5541 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
3506ad5c7f 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
2d8861a690 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
7d7ac5512a 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
900ceb725b 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
42736cb058 Simplify handling of variables with complex address (i.e. blocks variables) 
llvm-svn: 130339
 2011-04-27 22:45:24 +00:00
Devang Patel
3da97b7d34 Rename a local variable. 
llvm-svn: 130171
 2011-04-25 23:05:21 +00:00
Devang Patel
e28211b031 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
b1b33d6569 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
929bbb6bf9 Let front-end tie subprogram declaration with subprogram definition directly. 
llvm-svn: 130028
 2011-04-22 23:10:17 +00:00
Devang Patel
6aac901f77 Do not leak argument's DbgVariables. 
llvm-svn: 130004
 2011-04-22 18:09:57 +00:00
Devang Patel
4f25432e4e Refactor. 
llvm-svn: 129938
 2011-04-21 21:07:35 +00:00
Devang Patel
a31b73427e Add comment in output stream. 
llvm-svn: 129921
 2011-04-21 17:50:24 +00:00
Devang Patel
7220c1a021 Reduce clutter in asm output. Do not emit source location as comment for each instruction. 
llvm-svn: 129715
 2011-04-18 20:26:49 +00:00
Chris Lattner
0304b82f80 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
Devang Patel
43cbfe2ba7 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
5f8111e1ca Simplify. There is no need to use static variable. 
llvm-svn: 129406
 2011-04-12 23:10:47 +00:00
Devang Patel
f288e23b3f 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
6c1785d527 Refactor CompileUnit into a separate header. 
llvm-svn: 129367
 2011-04-12 17:40:32 +00:00
Devang Patel
21b6ef4320 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
39ac307002 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
Devang Patel
03d0891c10 Add support to encode function's template parameters. 
llvm-svn: 128947
 2011-04-05 22:52:06 +00:00
Devang Patel
af7f5f4ada Refactor. 
llvm-svn: 128929
 2011-04-05 21:08:24 +00:00
Devang Patel
2be08abc94 Do not emit empty name. 
llvm-svn: 128914
 2011-04-05 20:14:13 +00:00
Jakob Stoklund Olesen
446412de55 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
ab0501221b 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
4909f41ec5 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
c62f168ec5 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
28ebc380f6 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
63dc418ea3 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
ac3cdb2811 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
fc9e8a04c3 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