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2011-06-02.cfi directive register parsing flexibility.Jim Grosbach
Parsing a register name/number for .cfi directives can't assume that a register name starts with a '%' token. Be more flexible and check for a register number instead. Still unlikely to be perfect, but it allows us to parse both plain identifiers as register names and integers as register numbers, which is what we're wanting to support at this point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02Don't hardcode the %reg format in the streamer.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01Add new -d option to tblgen. It writes a make(1)-style dependency file.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-30Use the dwarf->llvm mapping to print register names in the cfiRafael Espindola
directives. Fixes PR9826. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Add a parameter to the Win64 EH section getters to get a section with aCharles Davis
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but I'll get to it in the next patch. Fix up all callers of the affected functions. Make them pass said suffix to the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Assorted fixes for Win64 EH unwind info emission:Charles Davis
- Flip order of bitfields. This gets our output matching GAS. - Handle case where the end of the prolog wasn't specified. - If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes. Add a test for the latter two. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Start keeping track of where the various unwind instructions are in the prolog.Charles Davis
Use them to calculate the offset inside the prolog. Emit this value when emitting the unwind codes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132177 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Add missing break statements. Align UNWIND_INFO and RUNTIME_FUNCTION structsCharles Davis
to 4 bytes. I'm surprised no one caught the missing break statements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132176 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27My attempt at fixing the leak reported by the valgrind buildbots. Valgrind willCharles Davis
still report leaks, but they're spurious now. Valgrind cannot peer into std::vector objects--or any dynamic array, for that matter--because it doesn't know how big the array is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132174 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Fix inverted conditional in SaveReg and SaveXMM. Err when the frame pointer isCharles Davis
already defined, and err when the PushMachFrame operation isn't the first operation (if specified at all). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132173 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26Test .seh_startchained and .seh_endchained parsing.Charles Davis
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with chained unwind areas exposed by the test that were related to this. The ChainedParent field had the wrong address, because when the chained unwind info was added, the addresses shifted around. Now we store the pointers to the structures, which are now allocated from the MC heap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues withCharles Davis
them. I had to add a special SwitchSectionNoChange method to MCStreamer just for .seh_handlerdata. If this isn't OK, please let me know, and I'll find some other way to fix .seh_handlerdata streaming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix theCharles Davis
buggy methods that parse these directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and anotherCharles Davis
one I found by inspection). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132037 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Add a test for the .seh_handler directive. Fix problems with the parsingCharles Davis
method exposed by the test. While we're at it, simplify the .seh_proc parsing method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132028 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24Test basic SEH directive-parsing functionality. Fix a latent bug exposed byCharles Davis
this test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24Implement the rest of the SEH directive-parsing methods in the COFFAsmParser.Charles Davis
Add a size alignment check to the .seh_stackalloc directive parser. Add a more descriptive error message to the .seh_handler directive parser. Add methods to the TargetAsmInfo struct in support of all this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-23Propagate error correctly in the MC Asm parser for leading '$' expressions.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131918 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-23Implement .seh_stackalloc and .seh_pushframe parsing.Charles Davis
I haven't implemented any of the ones that take registers yet. The problem is that for x86-64 the streamer methods expect a native x86 register number (note: %r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured out exactly how I want to do that yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131899 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22Add methods to parse the SEH directives to the COFFAsmParser. Implement someCharles Davis
of them, particularly the ones that don't take arguments. Also implement .seh_proc and .seh_handler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131866 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22switch to using a smallvector to avoid allocations for most normal size ↵Chris Lattner
instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131837 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22tidy some things up.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22Implement emission of all Win64 exception tables. Make the COFF streamer emitCharles Davis
these tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22Make the COFF streamer emit unwind info when processing a .seh_handlerdataCharles Davis
directive. Implement emission of Win64 EH unwind info. Pull in <cassert> in MCWin64EH.h so it can use the assert() macro. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22Don't allow unaligned offsets and sizes in the Win64 EH directives.Charles Davis
Also, fix threshold for 'Big' register saves. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Don't allow .seh_handler and .seh_handlerdata directives inside chainedCharles Davis
unwind areas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21A handler for a function in the Win64 EH scheme can be both an unwind handlerCharles Davis
and an exception handler. Handle that case. Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be needed later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131791 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Set the "LastFrameInst" field when streaming a .seh_setframe directive. ThisCharles Davis
is needed for an upcoming patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131772 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20No reason not to allow defining the CFA as a reg w/ offset zero.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Add missing leading \t when printing .cfi_def_cfa in the asmstreamer.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20fixes target address tBL and tBLX and sets relocation typeRafael Espindola
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6) Patch by koan-sin tan. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Now that they're implemented, make the Win64 EH MCAsmStreamer methods callCharles Davis
super. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131743 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20"Implement" the HandlerData Win64 EH method in the base MCStreamer.Charles Davis
There's really nothing to implement. All this really does is swap to a pseudo-section that later gets written to the unwind info struct. That needs to be implemented in the object streamers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Looks like OS X assemblers (including MC) don't likeRafael Espindola
foo: bar = foo .quad bar Avoid producing it. Fixes PR9951. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Misc code refactorings:Rafael Espindola
* Remove unnecessary arguments now that ForceExpAbs is a method. * Use ForceExpAbs in EmitAbsValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Implement the EndProlog Win64 EH method on the base MCStreamer.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131679 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Implement the Win64 EH prolog instruction methods on the base MCStreamer.Charles Davis
I had to change the API slightly to avoid overloading issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131666 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Reapply 131644 including the missing header changes:Joerg Sonnenberger
Introduce -fatal-assembler-warnings for the obvious purpose git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Revert r131644; it's breaking the build.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131653 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) MakeCharles Davis
ours compatible with GAS. In retrospect, I should have emailed binutils about this earlier. Thanks to Kai Tietz for pointing out that GAS already had SEH directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Introduce -fatal-assembler-warnings for the obvious purposeJoerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131644 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Implement the StartChained and EndChained Win64 EH methods on MCStreamer.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Implement the StartProc and EndProc Win64 EH methods on the base MCStreamer.Charles Davis
Based largely on Rafael Espindola's work on CFI. Other methods soon to follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Remove comments as Chris requested.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131590 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Fix an obvious typo in r131572.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131579 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Add some more Win64 EH directives:Charles Davis
- StartChained and EndChained delimit a chained unwind area, which can contain additional operations to be undone if an exception occurs inside of it. - UnwindOnly declares that this function doesn't handle any exceptions. If it has a handler, it's an unwind handler instead of an exception handler. - Lsda declares the location and size of the LSDA, which in the Win64 EH scheme is kept inside the UNWIND_INFO struct. Windows itself ignores the LSDA; it's used by the Language-Specific Handler (the "Personality Function" from DWARF). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131572 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Implement the Win64 EH directive methods for the assembly language streamer.Charles Davis
GAS has no such directives (not even mingw-w64 GAS has them), so I took creative license with their names in assembly. I prefixed them all with "w64_" to avoid namespace collisions, for example. If I discover that GAS has taken a different approach, I'll change ours to match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131525 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18While thinking about how to know where the functions' boundaries are forCharles Davis
the purposes of the Win64 EH tables, I realized we had no way to tell where the function ends. (MASM bounds functions with PROC and ENDP keywords.) Add a directive to delimit the end of the function, and rename the 'frame' directive to more accurately reflect its duality with the new directive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Add a method I forgot in the last commit. Don't worry, this one passedCharles Davis
self-host :). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131421 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Add a FIXME reminder to remove ForceARMElfPIC switch.Jason W Kim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131411 91177308-0d34-0410-b5e6-96231b3b80d8
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