Manman Ren
286c4dc355
Release build: guard dump functions with
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"#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)"
No functional change. Update r163344.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163679 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12 05:06:18 +00:00
Manman Ren
cc77eece74
Release build: guard dump functions with "ifndef NDEBUG"
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No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163344 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06 19:55:56 +00:00
Nick Lewycky
0c5602de8c
When emitting the PC range in an FDE, use the same data encoding for both ends
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of the range. Fixes PR13581!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161739 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-12 08:09:45 +00:00
Jim Grosbach
2d39a0e52d
Move [SU]LEB128 encoding to a utility header.
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These functions are very generic. There's no reason for them to
be tied to MCObjectWriter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-08 23:56:06 +00:00
Sylvestre Ledru
c8e41c5917
Fix a typo (the the => the)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160621 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-23 08:51:15 +00:00
Rafael Espindola
2241e51406
Fix a FIXME: DwarfRequiresRelocationForSectionOffset is the same as
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DwarfUsesRelocationsAcrossSections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158992 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22 13:24:07 +00:00
Jim Grosbach
2684d9e3c7
Tidy up. Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11 01:41:30 +00:00
Benjamin Kramer
7484920cf5
Compute hashes directly with hash_combine instead of taking a detour through FoldingSetNodeID.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11 14:06:39 +00:00
Rafael Espindola
489d679271
On ELF, create relocations to the abbreviation and line sections when producing
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debug info for assembly files. We were already doing the right thing when
producing debug info for C/C++.
ELF linkers don't know dwarf, so they depend on these relocations to produce
valid dwarf output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28 21:13:05 +00:00
Eric Christopher
3c3cdcc270
Grammar-o.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151418 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25 01:02:44 +00:00
Craig Topper
858143816d
Convert assert(0) to llvm_unreachable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07 05:05:23 +00:00
Rafael Espindola
16d7d437e0
Add support for .cfi_signal_frame. Fixes pr11762.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148733 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23 21:51:52 +00:00
Benjamin Kramer
eb9fa666f9
Add missing breaks to switch.
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Found by the clang static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148543 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 14:42:37 +00:00
Kevin Enderby
11c2defa91
This is the matching change for the data structure name changes for the
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functional change in r147860 to use DW_TAG_label's instead TAG_subprogram's.
This only changes names and updates comments. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147877 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10 21:12:34 +00:00
Kevin Enderby
38fdb7d9fc
Various crash reporting tools have a problem with the dwarf generated for
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assembly source when it generates the TAG_subprogram dwarf debug info for
the labels that have nothing between them as in this bit of assembly source:
% cat ZeroLength.s
_func1:
_func2:
nop
One solution would be to not emit the subsequent labels with the same address
and use the next label with a different address or the end of the section for
the AT_high_pc value of the TAG_subprogram.
Turns out in llvm-mc it is not possible in all cases to determine of two
symbols have the same value at the point we put out the TAG_subprogram dwarf
debug info.
So we will have llvm-mc instead of putting out TAG_subprogram's put out
DW_TAG_label's. And the DW_TAG_label does not have a AT_high_pc value which
avoids the problem.
This commit is only the functional change to make the diffs clear as to what is
really being changed. The next commit will be to clean up the names of such
things like MCGenDwarfSubprogramEntry to something like MCGenDwarfLabelEntry.
rdar://10666925
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147860 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10 17:52:29 +00:00
Rafael Espindola
ed23bdb65f
Implement cfi_restore. Patch by Brian Anderson!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147356 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-29 21:43:03 +00:00
Rafael Espindola
c25680f728
Rename Remember and Restore to RememberState and RestoreState for consistency.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147354 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-29 21:09:08 +00:00
Rafael Espindola
6f0b181bc7
Implement .cfi_escape. Patch by Brian Anderson!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-29 20:24:47 +00:00
Bill Wendling
7a13b72bbb
Re-re-enable compact unwind after fixing a failure in SingleSource/Benchmarks/Shootout-C++/except.cpp and friends. It was encoding the stored registers in the wrong order.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146617 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15 00:14:24 +00:00
Bill Wendling
e08643be3a
Disable to review some failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146545 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-14 02:16:54 +00:00
Kevin Enderby
94c2e85bea
The second part of support for generating dwarf for assembly source files. This
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09 18:09:40 +00:00
Bill Wendling
054a8be154
Re-enable compact unwind. It seems to work now. <rdar://problem/10441838>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145977 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06 22:18:12 +00:00
Bob Wilson
96b685b4aa
Disable generation of compact unwind encodings. <rdar://problem/10441578>
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This still seems to be causing some failures. It needs more testing before
it gets enabled again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144543 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14 18:21:07 +00:00
Bob Wilson
900b16b99d
Remove FIXME comment that should have been removed with r144351.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144392 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-11 17:34:14 +00:00
Bill Wendling
cf3b89f9a8
Reenable compact unwinding now that <rdar://problem/10430076> is fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-11 01:03:50 +00:00
Bill Wendling
7b809e08b9
Disable compact unwind generation until I can solve the codegen problems.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-11 00:28:42 +00:00
Benjamin Kramer
2dd423987e
Simplify code. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-09 13:19:15 +00:00
Bill Wendling
a2ff3e2c3c
Emit the compact unwind *if* we have a compact unwind encoding.
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*headdesk*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-08 22:23:43 +00:00
Benjamin Kramer
70be28a5ad
Simplify some uses of utohexstr.
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As a side effect hex is printed lowercase instead of uppercase now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144013 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07 21:00:59 +00:00
Bill Wendling
d8ab8e9707
As a first step, emit both the compact unwind and CIE/FDEs for a function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06 18:37:11 +00:00
Evan Cheng
5fbe5e783e
Some autoconf tests use module level inline asm to test compiler's handling of
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.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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138504 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24 22:31:37 +00:00
Bill Wendling
1424c3c3e6
Emit the __compact_unwind section first. If there are any frames which weren't
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emitted, emit them next as CIE/FDEs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22 21:18:59 +00:00
Evan Cheng
203576aa0c
Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135611 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20 19:50:42 +00:00
Evan Cheng
e76a33b956
Add MCObjectFileInfo and sink the MCSections initialization code from
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TargetLoweringObjectFileImpl down to MCObjectFileInfo.
TargetAsmInfo is done to one last method. It's *almost* gone!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135569 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20 05:58:47 +00:00
Bill Wendling
6c2f7e2398
Micro-opt: Only emit compact unwind if there is a compact unwind encoding to emit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135452 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19 00:09:25 +00:00
Bill Wendling
e52e3f2c02
Use the CompactUnwindEncoding from the Frame, if it's defined.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19 00:06:12 +00:00
Evan Cheng
2d28617de2
Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for
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better location welcome).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 22:29:13 +00:00
Evan Cheng
0e6a052331
Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
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to MCRegisterInfo. Also initialize the mapping at construction time.
This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 20:57:22 +00:00
Evan Cheng
1be0e271a0
Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatest
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solution but it is a small step towards removing the horror that is
TargetAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135237 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 02:09:41 +00:00
Bill Wendling
833ce06c8f
Remove setting the bit for personality function. It should be set by the linker.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 01:42:32 +00:00
Bill Wendling
79a6a48851
Encode that we have a personality function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 00:07:31 +00:00
Bill Wendling
4bb5b03712
* If we have an LSDA, we need to mark it in the encoding.
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* The personality function should be encoded as an absolute pointer to the function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135215 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 23:34:45 +00:00
Evan Cheng
672b93a332
Unfortunately several files in MC are badly violating layering rule by using
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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. :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 05:43:07 +00:00
Bill Wendling
8440fe2166
Don't emit the FDE end label if the last thing emitted was a compact unwind and
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not the FDE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135020 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-13 00:49:09 +00:00
Bill Wendling
6a6b8c3e96
Add a target hook to encode the compact unwind information.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134577 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07 00:54:13 +00:00
Bill Wendling
2b2dc7c4be
Clean up the #includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 22:52:32 +00:00
Bill Wendling
c3882164cb
Remove tabs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134212 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 23:59:38 +00:00
Bill Wendling
e08d4335ad
Improve comment: Show the register the DWARF label is added to.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134209 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 23:47:40 +00:00
Bill Wendling
d221cd676b
Add one more comment to the FDE verbose asm output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134200 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 22:35:49 +00:00
Bill Wendling
2541c41f3e
Add comments to the FDE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 22:02:20 +00:00