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* Implement .cfi_escape. Patch by Brian Anderson!Rafael Espindola2011-12-291-0/+4
| | | | llvm-svn: 147352
* Re-re-enable compact unwind after fixing a failure in ↵Bill Wendling2011-12-151-2/+1
| | | | | | SingleSource/Benchmarks/Shootout-C++/except.cpp and friends. It was encoding the stored registers in the wrong order. llvm-svn: 146617
* Disable to review some failures.Bill Wendling2011-12-141-1/+2
| | | | llvm-svn: 146545
* The second part of support for generating dwarf for assembly source files. ThisKevin Enderby2011-12-091-0/+339
| | | | | | | | | | generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each non-temporary label. The next part will be to get the clang driver to enable this when assembling a .s file. rdar://9275556 llvm-svn: 146262
* Re-enable compact unwind. It seems to work now. <rdar://problem/10441838>Bill Wendling2011-12-061-4/+1
| | | | llvm-svn: 145977
* Disable generation of compact unwind encodings. <rdar://problem/10441578>Bob Wilson2011-11-141-1/+2
| | | | | | | This still seems to be causing some failures. It needs more testing before it gets enabled again. llvm-svn: 144543
* Remove FIXME comment that should have been removed with r144351.Bob Wilson2011-11-111-1/+0
| | | | llvm-svn: 144392
* Reenable compact unwinding now that <rdar://problem/10430076> is fixed.Bill Wendling2011-11-111-1/+1
| | | | llvm-svn: 144351
* Disable compact unwind generation until I can solve the codegen problems.Bill Wendling2011-11-111-1/+2
| | | | llvm-svn: 144346
* Simplify code. No functionality change.Benjamin Kramer2011-11-091-8/+2
| | | | llvm-svn: 144186
* Emit the compact unwind *if* we have a compact unwind encoding.Bill Wendling2011-11-081-1/+1
| | | | | | *headdesk* llvm-svn: 144138
* Simplify some uses of utohexstr.Benjamin Kramer2011-11-071-3/+2
| | | | | | As a side effect hex is printed lowercase instead of uppercase now. llvm-svn: 144013
* As a first step, emit both the compact unwind and CIE/FDEs for a function.Bill Wendling2011-09-061-13/+7
| | | | llvm-svn: 139152
* Some autoconf tests use module level inline asm to test compiler's handling ofEvan Cheng2011-08-241-1/+1
| | | | | | | | | | | | | | | | .cfi_startproc. e.g. libffi: $ cat confopt.c asm (".cfi_startproc\n\t.cfi_endproc"); int main () { return 0; } Teach MC / dwarf emission to handle these cfi directives which essentially create an empty frame. rdar://10017184 llvm-svn: 138504
* Emit the __compact_unwind section first. If there are any frames which weren'tBill Wendling2011-07-221-14/+27
| | | | | | emitted, emit them next as CIE/FDEs. llvm-svn: 135807
* Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.Evan Cheng2011-07-201-7/+3
| | | | | | | There is still a bit more refactoring left to do in Targets. But we are now very close to fixing all the layering issues in MC. llvm-svn: 135611
* Add MCObjectFileInfo and sink the MCSections initialization code fromEvan Cheng2011-07-201-12/+19
| | | | | | | | TargetLoweringObjectFileImpl down to MCObjectFileInfo. TargetAsmInfo is done to one last method. It's *almost* gone! llvm-svn: 135569
* Micro-opt: Only emit compact unwind if there is a compact unwind encoding to ↵Bill Wendling2011-07-191-1/+1
| | | | | | emit. llvm-svn: 135452
* Use the CompactUnwindEncoding from the Frame, if it's defined.Bill Wendling2011-07-191-7/+2
| | | | llvm-svn: 135451
* Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions forEvan Cheng2011-07-181-1/+2
| | | | | | better location welcome). llvm-svn: 135438
* Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng2011-07-181-5/+6
| | | | | | | | | to MCRegisterInfo. Also initialize the mapping at construction time. This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step towards fixing the layering violation. llvm-svn: 135424
* Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatestEvan Cheng2011-07-151-26/+26
| | | | | | | solution but it is a small step towards removing the horror that is TargetAsmInfo. llvm-svn: 135237
* Remove setting the bit for personality function. It should be set by the linker.Bill Wendling2011-07-151-3/+0
| | | | llvm-svn: 135236
* Encode that we have a personality function.Bill Wendling2011-07-151-0/+3
| | | | llvm-svn: 135227
* * If we have an LSDA, we need to mark it in the encoding.Bill Wendling2011-07-141-1/+5
| | | | | | * The personality function should be encoded as an absolute pointer to the function. llvm-svn: 135215
* Unfortunately several files in MC are badly violating layering rule by usingEvan Cheng2011-07-141-2/+6
| | | | | | | | | TargetAsmInfo, which in turn pulls in TargetRegisterInfo, etc. :-( There are other cases of violations, but this is probably the worst. This patch is but one small step towards fixing this. 500 more steps to go. :-( llvm-svn: 135131
* Don't emit the FDE end label if the last thing emitted was a compact unwind andBill Wendling2011-07-131-1/+3
| | | | | | not the FDE llvm-svn: 135020
* Add a target hook to encode the compact unwind information.Bill Wendling2011-07-071-6/+8
| | | | llvm-svn: 134577
* Clean up the #includes.Bill Wendling2011-07-061-5/+4
| | | | llvm-svn: 134557
* Remove tabs.Bill Wendling2011-06-301-6/+6
| | | | llvm-svn: 134212
* Improve comment: Show the register the DWARF label is added to.Bill Wendling2011-06-301-1/+2
| | | | llvm-svn: 134209
* Add one more comment to the FDE verbose asm output.Bill Wendling2011-06-301-0/+1
| | | | llvm-svn: 134200
* Add comments to the FDE.Bill Wendling2011-06-301-5/+13
| | | | llvm-svn: 134196
* Add more comments to the ASM output for the CIE's "moves".Bill Wendling2011-06-301-1/+20
| | | | llvm-svn: 134194
* Add comments to the ASM output to help understand the compact unwind and CIE ↵Bill Wendling2011-06-301-6/+61
| | | | | | tables. llvm-svn: 134191
* * Use the proper size to output the range size.Bill Wendling2011-06-301-1/+8
| | | | | | * Rough in the compact encoding part. llvm-svn: 134119
* Stupid error: If the LSDA and Personality functions aren't there, emit 0 insteadBill Wendling2011-06-291-10/+8
| | | | | | of the encoding. llvm-svn: 134117
* We don't want to use relocations inside the compact unwind section. Just use theBill Wendling2011-06-291-4/+19
| | | | | | symbols instead. llvm-svn: 134115
* Use a reference. Don't make a useless copy of the vector.Bill Wendling2011-06-231-1/+1
| | | | llvm-svn: 133707
* Formatting changes. No functionality change.Bill Wendling2011-06-231-32/+30
| | | | llvm-svn: 133706
* Use the presence of the __compact_unwind section to indicate that a targetBill Wendling2011-06-231-1/+1
| | | | | | supports compact unwind info instead of having a separate flag indicating this. llvm-svn: 133685
* Some skeleton code to emit the compact unwind. If the information is unable toBill Wendling2011-06-231-1/+63
| | | | | | be emitted in a compact way, we then default to emitting a CIE and FDE. llvm-svn: 133676
* Directly print to a raw_ostream instead of printing to a buffer first.Benjamin Kramer2011-06-181-4/+1
| | | | llvm-svn: 133352
* No reason not to allow defining the CFA as a reg w/ offset zero.Jim Grosbach2011-05-201-2/+0
| | | | llvm-svn: 131760
* Avoid a gcc warning.Rafael Espindola2011-05-101-1/+2
| | | | llvm-svn: 131161
* On MachO, unlike ELF, there should be no relocation to produce the CIE pointer.Rafael Espindola2011-05-101-8/+17
| | | | llvm-svn: 131149
* The EH symbols are only needed in eh_frame, not debug_frame.Rafael Espindola2011-05-101-2/+2
| | | | llvm-svn: 131146
* In a debug_frame the cfi offset is to the start of the debug_frame section!Rafael Espindola2011-05-101-3/+7
| | | | llvm-svn: 131129
* Add support for producing .deubg_frame sections.Rafael Espindola2011-05-101-45/+59
| | | | llvm-svn: 131121
* Small cleanups.Rafael Espindola2011-05-101-8/+5
| | | | llvm-svn: 131120
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