llvm-svn: 131940

llvm-svn: 131936

Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.

llvm-svn: 131194

DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

llvm-svn: 131148

llvm-svn: 131106

Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp

llvm-svn: 130991

llvm-svn: 130984

llvm-svn: 130955

llvm-svn: 130933

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

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

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

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

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

This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373

llvm-svn: 130339

llvm-svn: 130171

s/addVariableAddress/addFrameVariableAddress/g

llvm-svn: 130170

Observed this while reading code, so I do not have a test case handy here.

llvm-svn: 130167

llvm-svn: 130028

llvm-svn: 130004

llvm-svn: 129938

llvm-svn: 129921

llvm-svn: 129715

Luis Felipe Strano Moraes!

llvm-svn: 129558

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

llvm-svn: 129406

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

llvm-svn: 129367

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

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

llvm-svn: 128947

llvm-svn: 128929

llvm-svn: 128914

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

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

A better approach would be to move source id handling inside MC.

llvm-svn: 128233

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

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

Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.

llvm-svn: 128097