Commit Graph

1890 Commits

Author SHA1 Message Date
Rafael Espindola
4a971705bc Remove the MachineMove class.
It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.

I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-13 01:16:13 +00:00
Kevin Enderby
88535dda90 Fix a bug in the MC asm parser evaluating expressions. It was treating:
A = 9
B = 3 * A - 2 * A + 1 as  B = 3 * A - (2 * A + 1)

rdar://13816516


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-07 21:40:58 +00:00
Charles Davis
8cb6b97160 MCStreamer: Also clear vector of W64UnwindInfos on reset().
Patch by Kai Nacke!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181363 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-07 21:14:15 +00:00
Bob Wilson
32ec93d431 Remove redundant check and use cached FrameArray values.
No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181355 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-07 20:56:33 +00:00
Ulrich Weigand
e5c8c24ed5 [SystemZ] Update non-pic DWARF encodings
As pointed out by Rafael Espindola, we should match the DWARF encodings
produced by GCC in both pic and non-pic modes.  This was not the case
for the non-pic case.

This patch changes all DWARF encodings to DW_EH_PE_absptr for the
non-pic case, just like GCC does.  The test case is updated to check
for both variants.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181222 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 17:28:30 +00:00
Ulrich Weigand
e96e43f9a4 [SystemZ] Define DWARF encoding
This is another patch in preparation for adding the SystemZ target.
It defines the appropriate values for DWARF encodings; the intent
is to be compatible with what GCC currently does on the target.

Patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181201 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 16:11:12 +00:00
Dmitri Gribenko
5c332dbd30 Add ArrayRef constructor from None, and do the cleanups that this constructor enables
Patch by Robert Wilhelm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05 00:40:33 +00:00
Ulrich Weigand
a7e5e6b959 [PowerPC] Parse platform-specifc variant kinds in AsmParser
This patch adds support for PowerPC platform-specific variant
kinds in MCSymbolRefExpr::getVariantKindForName, and also
adds a test case to verify they are translated to the appropriate
fixup type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181053 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03 19:52:35 +00:00
Rafael Espindola
93d0b06e2a Fix section relocation for SECTIONREL32 with immediate offset.
Patch by Kai Nacke. This matches the gnu as output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180568 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-25 19:27:05 +00:00
Bill Wendling
c60e252ef6 Align the __LD,__compact_unwind section.
I know what would be cool! We should align the compact unwind section because
aligned data access is faster.
<rdar://problem/13723271>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180171 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-24 03:11:14 +00:00
Matt Arsenault
9a0e12a6ed Remove unused DwarfSectionOffsetDirective string
The value isn't actually used, and setting it emits a COFF specific
directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180064 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 22:49:11 +00:00
Chad Rosier
087c309779 [ms-inline asm] Get the OpDecl and remove a redundant lookup.
Part of rdar://13663589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180057 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 22:12:12 +00:00
Peter Collingbourne
4974b972e7 COFF: Fix weak external aliases.
Differential Revision: http://llvm-reviews.chandlerc.com/D700

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180034 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 18:48:56 +00:00
Chad Rosier
44021515d7 [ms-inline asm] Refactor/clean up the SemaLookup interface. No functional
change indended.
Part of rdar://13663589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180028 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 17:01:46 +00:00
Craig Topper
955d1e984c Fix indentation. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179994 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 04:24:02 +00:00
Craig Topper
efa703dace Put 'else' on same line as preceding curly brace per coding standards. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179993 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 04:22:40 +00:00
Craig Topper
007b40ff9f Remove an unreachable 'break' following a 'return'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179991 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 04:06:59 +00:00
Bill Wendling
fa2b25c573 Relax this assert. It may not hold in all cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179814 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18 23:16:46 +00:00
Bill Wendling
18014d4e4c Assert if we're trying to generate a null compact unwind entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179809 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18 22:56:05 +00:00
Peter Collingbourne
df39be6cb4 Add support for subsections to the ELF assembler. Fixes PR8717.
Differential Revision: http://llvm-reviews.chandlerc.com/D598

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179725 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17 21:18:16 +00:00
Nico Rieck
ef1762b6a1 Use object file specific section type for initial text section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179494 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 21:18:36 +00:00
Chad Rosier
dda4b6bf25 [ms-inline asm] Add the implementation for the AOK_Delete kind, which was added
in r179325.  Test case coming shortly on the clang side.
Part of rdar://13453209

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179383 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-12 16:26:42 +00:00
Chad Rosier
f06cc98149 [ms-inline asm] Remove brackets from around a symbol reference in the target
specific logic.  This makes the code much less fragile.  Test case coming on the
clang side in a moment.
rdar://13634327


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-11 21:49:30 +00:00
Nico Rieck
18d49acdab MC: Support COFF image-relative MCSymbolRefs
Add support for the COFF relocation types IMAGE_REL_I386_DIR32NB and
IMAGE_REL_AMD64_ADDR32NB for 32- and 64-bit respectively. These are
similar to normal 4-byte relocations except that they do not include
the base address of the image.

Image-relative relocations are used for debug information (32-bit) and
SEH unwind tables (64-bit).

A new MCSymbolRef variant called 'VK_COFF_IMGREL32' is introduced to
specify such relocations. For AT&T assembly, this variant can be accessed
using the symbol suffix '@imgrel'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179240 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10 23:28:17 +00:00
Bill Wendling
3c08eef20b No need to have this return a bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179226 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10 22:03:59 +00:00
Bill Wendling
62c75ad430 Track the compact unwind encoding for when we are unable to generate compact unwind information.
Compact unwind has an encoding for when we're not able to generate compact
unwind and must generate an EH frame instead. Track that, but still emit that CU
encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179220 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10 21:42:06 +00:00
Chad Rosier
ba69b36692 Reapply r179115, but use parsePrimaryExpression a little more judiciously.
Test cases that regressed due to r179115, plus a few more, were added in
r179182.  Original commit message below:

[ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need to
parse an identifier.  Otherwise, parseExpression may parse multiple tokens,
which makes it impossible to properly compute an immediate displacement.
An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in
the below example:

 __asm mov eax, [Symbol + ImmDisp]

Part of rdar://13611297

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179187 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10 17:35:30 +00:00
Peter Collingbourne
01a7b5c43e Use a scheme closer to that of GNU as when deciding the type of a
symbol with multiple .type declarations.

Differential Revision: http://llvm-reviews.chandlerc.com/D607

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179184 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10 16:52:15 +00:00
Rafael Espindola
27554ee1d8 Remove unused method and default values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179124 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 20:35:08 +00:00
Chad Rosier
3eb6d7fcd0 Revert r179115 as it looks to have killed the ASan tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179120 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 19:59:12 +00:00
Chad Rosier
d4727e3798 [ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need to
parse an identifier.  Otherwise, parseExpression may parse multiple tokens,
which makes it impossible to properly compute an immediate displacement.
An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in
the below example:

 __asm mov eax, [Symbol + ImmDisp]

The existing test cases exercise this patch.
rdar://13611297


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179115 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 19:34:59 +00:00
Chad Rosier
b976e407dc [ms-inline asm] Maintain a StringRef to reference a symbol in a parsed operand,
rather than deriving the StringRef from the Start and End SMLocs.

Using the Start and End SMLocs works fine for operands such as [Symbol], but
not for operands such as [Symbol + ImmDisp].  All existing test cases that
reference a variable exercise this patch.
rdar://13602265



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179109 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 17:53:49 +00:00
Chad Rosier
6b369ceb58 [ms-inline asm] Add support for ImmDisp [ Symbol ] memory operands.
rdar://13521249


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179030 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08 17:43:47 +00:00
Rafael Espindola
04011e8429 Fix the fde encoding used by mips to match gas.
This finally fixes the encoding. The patch also
* Removes eh-frame.ll. It was an unnecessary .ll to .o test that was checking
  the wrong value.
* Merge fde-reloc.s and eh-frame.s into a single test, since the only difference
  was the run lines.
* Don't blindly test the content of the entire .eh_frame section. It makes it
  hard to anyone actually fixing a bug and hitting a difference in a binary
  blob. Instead, use a CHECK for each field and document what is being checked.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178615 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 03:13:19 +00:00
Jack Carter
732f4bc7c4 Mips direct object exception handling regression
Revision 177141 caused a regression in all but
mips64 little endian. That is because none of the
other Mips targets had test cases checking the 
contents of the .eh_frame section. This patch fixes
both the llvm code and adds an assembler test case 
to include the current 4 flavors.

The test cases unfortunately rely on llvm-objdump. A
preferable method would be to use a pretty printer output
such as what readelf -wf <elf_file> would give.

I also changed the name of the test case to correct a typo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01 21:55:15 +00:00
Benjamin Kramer
42734cfb41 Change '@SECREL' suffix to GAS-compatible '@SECREL32'.
'@SECREL' is what is used by the Microsoft assembler, but GNU as expects '@SECREL32'.
With the patch, the MC-generated code works fine in combination with a recent GNU as (2.23.51.20120920 here).

Patch by David Nadlinger!
Differential Revision: http://llvm-reviews.chandlerc.com/D429

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178427 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30 16:21:50 +00:00
Chad Rosier
8a9a16bd3d Dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177451 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19 22:13:05 +00:00
Chad Rosier
811ddf64af [ms-inline asm] Move the immediate asm rewrite into the target specific
logic as a QOI cleanup.  No functional change.  Tests already in place.
rdar://13456414

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177446 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19 21:58:18 +00:00
Chad Rosier
0f7ccd279d [ms-inline asm] Remove the brackets from X86Operand in the IR. These will be
added back in by X86AsmPrinter::printIntelMemReference() during codegen.
Previously, this following example

  void t() {
    int i;
    __asm mov eax, [i]
  }

would generate the below assembly

  mov eax, dword ptr [[eax]]

which resulted in a fatal error when compiling.  Test case coming on the
clang side.
rdar://13444264

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177440 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19 21:12:14 +00:00
Chad Rosier
023c880220 [ms-inline asm] Move the size directive asm rewrite into the target specific
logic as a QOI cleanup.
rdar://13445327

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177413 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19 17:32:17 +00:00
Jakub Staszak
242cec5be3 Change NULL to 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177342 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18 23:08:01 +00:00
Rafael Espindola
7a86ffb19f Fix the FDE encoding to be relative on ELF.
This is a very late complement to r130637 which fixed this on x86_64. Fixes
pr15448.

Since it looks like that every elf architecture uses this encoding when using
cfi, make it the default for elf. Just exclude mips64el. It has a lovely
.ll -> .o test (ef_frame.ll) that tests that nothing changes in the binary
content of the .eh_frame produced by llc. Oblige it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177141 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15 05:51:57 +00:00
Manman Ren
9e999adb48 Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176893 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12 20:17:00 +00:00
Kevin Enderby
2ee69f1be6 Remove the assert()'s from the LLVMCreateDisasmCPU() library API and just
return 0 to indicate failure to create the disassembler.  A library routine
should not assert and just let the caller handler the error.  For example
darwin's otool(1) will simply print an error if it ends up using a library
that is not configured for a target it wants:

% otool -tv ViewController.o
ViewController.o:
(__TEXT,__text) section
can't create arm llvm disassembler

This is much better than an abort which appears as a crash to the user or
even the assert when using a Debug+Asserts built library:

Assertion failed: (MAI && "Unable to create target asm info!"), function LLVMCreateDisasmCPU, file /Volumes/SandBox/llvm/lib/MC/MCDisassembler/Disassembler.cpp, line 47.

radr://12539918


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176880 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12 18:12:17 +00:00
Nick Lewycky
7394c5a37c Commit the right files for r176762. Sigh.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176763 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09 09:32:16 +00:00
Nick Lewycky
462bba39c2 We need a shndx if the number of sections breaks SHN_LORESERVE. This condition
for choosing to emit a shndx was simply testing the wrong variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176762 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09 09:31:44 +00:00
Manman Ren
3de61b4c01 Debug Info: store the files and directories for each compile unit.
We now emit a line table for each compile unit. To reduce the prologue size
of each line table, the files and directories used by each compile unit are
stored in std::map<unsigned, std::vector< > > instead of std::vector< >.

The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each
compile unit causes a huge increase of debug info. With this patch, each
prologue will only emit the files required by the compile unit.

rdar://problem/13342023


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176605 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07 01:42:00 +00:00
Jim Grosbach
ac67b50fcf AsmParser: More generic support for integer type suffices.
For integer constants, allow 'L', 'UL' as well as 'ULL' and 'LL'. This provides
better support for shared headers between .s and .c files that define bunches
of constant values.

rdar://9321056

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176118 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 20:17:10 +00:00
Bill Schmidt
3a42989d3d Fix PR15359.
The PowerPC TLS relocation types were not previously added to the
necessary list in MCELFStreamer::fixSymbolsInTLSFixups().  Now they are!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176094 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 16:41:03 +00:00
Matt Beaumont-Gay
50e75bfc29 'Hexadecimal' has two 'a's and only one 'i'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176031 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-25 18:11:18 +00:00