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2010-03-08Revert r97917, which was causing Clang Debug self-host failures.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97932 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Roll r97906 forward again, without double-deleting CompileUnit::IndexTyDie.Jeffrey Yasskin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97917 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07_2_ gcc crashes, ah, ah, ah...Jeffrey Yasskin
(Rolling back r97906.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by ↵Jeffrey Yasskin
Valgrind! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97906 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Fix grammar.Devang Patel
Thanks Duncan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97572 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Constructors and operators for anonymous aggregates does not names. Do not ↵Devang Patel
force empty AT_name attribute in such cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26A much cleaner (and less code!) way of inserting the correct amount of paddingBill Wendling
for alignment into the LSDA. If the TType base offset is emitted, then put the padding there. Otherwise, put it in the call site table length. There will be no conflict between the two sites when placing the padding in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26Comment typo.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26Fix comments.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97200 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26Add another (and hopefully the last) exception case, where once we recalculateBill Wendling
the alignment requirement, if it no longer makes the TType base offset overflow into extra bytes, then we need to pad to those bytes ourselves. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26And should use the correct variable.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97193 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26Got assertion check backwards.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97192 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25Catch a corner case where adding the padding to the "TType base offset" fieldBill Wendling
will eliminate the need for padding in the "Call site table length". E.g., if we have this: GCC_except_table1: Lexception1: .byte 0xff ## @LPStart Encoding = omit .byte 0x9b ## @TType Encoding = indirect pcrel sdata4 .byte 0x7f ## @TType base offset .byte 0x03 ## Call site Encoding = udata4 .byte 0x89 ## Call site table length with padding of 1. We want to emit the padding like this: GCC_except_table1: Lexception1: .byte 0xff ## @LPStart Encoding = omit .byte 0x9b ## @TType Encoding = indirect pcrel sdata4 .byte 0xff ## @TType base offset .space 1,0 ## Padding .byte 0x03 ## Call site Encoding = udata4 .byte 0x89 ## Call site table length and not with padding on the "Call site table length" entry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25Make comment more meaningful.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97169 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25MC'ize padding when padding the ULEB128 value.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24LLVM puts padding bytes in the __gcc_except_tab section after theBill Wendling
GCC_except_table label but before the Lexception, which the FDE references. This causes problems as the FDE does not point to the start of an LSDA chunk. Use an unnormalized uleb128 for the call-site table length that includes the padding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97078 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23use OutStreamer.EmitCodeAlignment for alignment in the textChris Lattner
segment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17move isOnlyReachableByFallthrough out of MachineBasicBlock into AsmPrinter,Chris Lattner
and add a sparc implementation that knows about delay slots. Patch by Nathan Keynes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17Before setting scope end marker, pay attention to scope begin marker and ↵Devang Patel
existing scope end marker, if any. Scope must begin before it ends and nested inlined scope do not truncate surrounding scope. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15Use ttype encoding consistentlyAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15It turns out that we emitted completely wrong common EH frame since the ↵Anton Korobeynikov
early beginning! The "z" CIE augmentation mark indicates that there is an extra word containing the size of augmentation section. However, even for frames w/o any augmentation data we emitted size uleb! (this is the case of "unwinding through C code"). Thus frame moves information was emitterd completely wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15Preliminary patch to improve dwarf EH generation - Hooks to return ↵Anton Korobeynikov
Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Use .empty() instead of .size().Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Fix to get it to compile.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Don't print out a default newline when emitting the section offset. There areBill Wendling
almost always comments afterwards that need printing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95839 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Use an index instead of pointers into the vector. If the vector resizes, thenBill Wendling
the pointer values could be invalid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Fix "the the" and similar typos.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10fix a layering violation: VirtRegRewriter.cpp shouldn't use AsmPrinter.h.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95748 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Improve comments a even more.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Move verbose asm instruction comments to using MCStreamer.Chris Lattner
The major win of this is that the code is simpler and they print on the same line as the instruction again: movl %eax, 96(%esp) ## 4-byte Spill movl 96(%esp), %eax ## 4-byte Reload cmpl 92(%esp), %eax ## 4-byte Folded Reload jl LBB7_86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95738 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Improve comments a bit more.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10print all the newlines at the end of instructions withChris Lattner
OutStreamer.AddBlankLine instead of textually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Improve comments in the LSDA somewhat. They can be improved much more.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09move target-independent opcodes out of TargetInstrInfoChris Lattner
into TargetOpcodes.h. #include the new TargetOpcodes.h into MachineInstr. Add new inline accessors (like isPHI()) to MachineInstr, and start using them throughout the codebase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Add declaration attribute to a variable DIE, if there is a separate DIE for ↵Devang Patel
the definition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95646 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Implement AsmPrinter support for several more operators which haveDan Gohman
direct MCExpr equivalents. Don't use MCExpr::Shr because it isn't consistent between targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95620 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08now that @GOTOFF is no longer represented as a suffix on aChris Lattner
MCSymbol, we can remove the 'suffix' argument of GetBlockAddressSymbol. Do so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95601 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08ConstantFoldConstantExpression can theoretically return the originalDan Gohman
expression; don't go into an infinite loop if it does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08When CodeGen'ing unoptimized code, there may be unfolded constant expressionsDan Gohman
in global initializers. Instead of aborting, attempt to fold them on the spot. If folding succeeds, emit the folded expression instead. This fixes PR6255. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-07Give DwarfPrinter a protected (but not virtual) destructor. CppcheckDuncan Sands
warns about this base class not having a virtual destructor, but since this class has no virtual methods and neither it or the types derived from it has a destructor, a protected trivial destructor will do (and shuts cppcheck up) the trick without the cost of introducing a vtable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Set DW_AT_artificial only if argument is marked as artificial.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Do not generate specification DIE for nested functions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05An empty global constant (one of size 0) may have a section immediatelyBill Wendling
following it. However, the EmitGlobalConstant method wasn't emitting a body for the constant. The assembler doesn't like that. Before, we were generating this: .zerofill __DATA, __common, __cmd, 1, 3 This fix puts us back to that semantic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Emit appropriate expression to find virtual base offset.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Provide interface to identifiy artificial methods.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction,Chris Lattner
.o files don't like that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95187 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03privatize a bunch of methods and move \n printing into them.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03rejigger the world so that EmitInstruction prints the \n atChris Lattner
the end of the instruction instead of expecting the caller to do it. This currently causes the asm-verbose instruction comments to be on the next line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03sink handling of target-independent machine instrs (otherChris Lattner
than DEBUG_VALUE :( ) into the target indep AsmPrinter.cpp file. This allows elimination of the NO_ASM_WRITER_BOILERPLATE hack among other things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02refactor code so that LLVMTargetMachine creates the asmstreamer and Chris Lattner
mccontext instead of having AsmPrinter do it. This allows other types of MCStreamer's to be passed in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95155 91177308-0d34-0410-b5e6-96231b3b80d8
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