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

This means now 'llvm-ld a.bc b.bc' will preserve debug info appropriately.

llvm-svn: 103439

llvm-svn: 103327

llvm-svn: 103325

llvm-svn: 103303

llvm-svn: 103295

llvm-svn: 103272

increase in the debug line info section, and it's causing
regressions in a gdb testsuite.

llvm-svn: 103226

llvm-svn: 103145

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

of just letting them inherit the debug locations of adjacent instructions.

Debug info should aim to be either accurate or absent.

llvm-svn: 103135

llvm-svn: 103001

preventing the emission of the NOP on Darwin for a
function with no actual code.  From timberwolfmc
with TEST=optllcdbg.

llvm-svn: 102843

llvm-svn: 102743

	##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

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

llvm-svn: 102486

ForcedAlignBits argument, tweaking the single client of it.

llvm-svn: 102484

llvm-svn: 102483

llvm-svn: 102482

llvm-svn: 102481

llvm-svn: 102470

llvm-svn: 102468

llvm-svn: 102463

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

llvm-svn: 102453

should fix some "g++.dg-struct-layout-1" failures, 
rdar://7886017

llvm-svn: 102421

llvm-svn: 102401

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

llvm-svn: 102394

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

llvm-svn: 102359

preferred alignment unless they were common or some other special
case.

llvm-svn: 102300

because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.

llvm-svn: 102155

llvm-svn: 102129

llvm-svn: 102127

llvm-svn: 102106

llvm-svn: 102104

llvm-svn: 102102

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