Commit Graph

176 Commits

Author SHA1 Message Date
Jim Grosbach ebdf32f907 Assmebler symbol attribute directives don't work on temporary symbols.
Assembler private local symbols aren't legal targets of symbol attributes,
so issue a diagnostic for them.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139807
2011-09-15 17:56:49 +00:00
Kevin Enderby 7255361320 First step in supporting #line directives in assembler. This step parses the
#line directives with the needed support in the lexer.  Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.

llvm-svn: 139669
2011-09-13 23:45:18 +00:00
Jim Grosbach bd16424f91 Fix AsmParser binary precedence for shift operators.
rdar://9976729

llvm-svn: 138208
2011-08-20 16:24:13 +00:00
Jim Grosbach 345768c9ff Remove unused Target argument from AsmParser construction methods.
The argument is unused, and is a layering violation in any case.

llvm-svn: 137735
2011-08-16 18:33:49 +00:00
Evan Cheng 481ebb0133 Support .code32 and .code64 in X86 assembler.
llvm-svn: 136197
2011-07-27 00:38:12 +00:00
Evan Cheng 1142444565 Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer; rename createAsmLexer to createMCAsmLexer and createAsmParser to createMCAsmParser.
llvm-svn: 136027
2011-07-26 00:24:13 +00:00
Jim Grosbach 38b1ed8ce2 Move some ELF directives into ELF asm parser.
The .local, .hidden, .internal, and .protected are not legal for all supported
file formats (in particular, they're invalid for MachO). Move the parsing for
them into the ELF assembly parser since that's the format they're for.
Similarly, .weak is used by COFF and ELF, but not MachO, so move the parsing
to the COFF and ELF asm parsers. Previously, using any of these directives
on Darwin would result in an assertion failure in the parser; now we get
a diagnostic as we should.

rdar://9827089

llvm-svn: 135921
2011-07-25 17:55:35 +00:00
Evan Cheng f2596bc62a Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
llvm-svn: 135833
2011-07-23 00:45:41 +00:00
Evan Cheng bbf3b0de8b Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.
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
2011-07-20 19:50:42 +00:00
Evan Cheng 76792992d6 Add MCObjectFileInfo and sink the MCSections initialization code from
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569
2011-07-20 05:58:47 +00:00
Evan Cheng d60fa58ba1 Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
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
2011-07-18 20:57:22 +00:00
Jim Grosbach 602aa90ab8 Update MCParsedAsmOperand debug methods.
Update the debug output interface for MCParsedAsmOperand to have a print()
method which takes an output stream argument, an << operator which invokes
the print method using the given stream, and a dump() method which prints
the operand to the dbgs() stream. This makes the interface more consistent
with the rest of LLVM, and more convenient to use at the debugger command
line.

llvm-svn: 135043
2011-07-13 15:34:57 +00:00
Jim Grosbach 76346c3bf7 Asm parser range checking on .<size> <value> directives.
For example, ".byte 256" would previously assert() when emitting an object
file. Now it generates a diagnostic that the literal value is out of range.

rdar://9686950

llvm-svn: 134069
2011-06-29 16:05:14 +00:00
Hans Wennborg 3fefc65c1d MC: Allow .common as alias for .comm assembler directive. PR10116.
llvm-svn: 133349
2011-06-18 13:51:54 +00:00
Jim Grosbach c7e6b8fed5 Diagnostic for undefined assembler local symbols.
Re-apply 133010, with fixes for inline assembler.

Original commit message:
"When an assembler local symbol is used but not defined in a module, a
Darwin assembler wants to issue a diagnostic to that effect."

Added fix to only perform the check when finalizing, as otherwise we're not
done and undefined symbols may simply not have been encountered yet.

Passes "make check" and a self-host check on Darwin.

llvm-svn: 133071
2011-06-15 18:33:28 +00:00
Jim Grosbach ed1da49673 Revert 133010. Self-hosted buildbot unhappy.
Apparently llvm itself generates undefined assembler local labels, causing
self-hosting problems with this patch. Reverting until that's sorted out.

llvm-svn: 133013
2011-06-14 21:51:20 +00:00
Jim Grosbach 627e780902 Diagnostic for undefined assembler local symbols.
When an assembler local symbol is used but not defined in a module, a
Darwin assembler wants to issue a diagnostic to that effect.

rdar://9559714

llvm-svn: 133010
2011-06-14 21:13:25 +00:00
Rafael Espindola 1134ab23df Basic support for macros with explicit arguments.
We still don't handle

* default values
* :req
* :vararg
* \()

llvm-svn: 132656
2011-06-05 02:43:45 +00:00
Jim Grosbach dac0238ed2 .cfi directive register parsing flexibility.
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.

llvm-svn: 132466
2011-06-02 17:14:04 +00:00
Joerg Sonnenberger af5f23ee07 Add new -d option to tblgen. It writes a make(1)-style dependency file.
llvm-svn: 132395
2011-06-01 13:10:15 +00:00
Jim Grosbach bae9fee95f Propagate error correctly in the MC Asm parser for leading '$' expressions.
llvm-svn: 131918
2011-05-23 20:36:04 +00:00
Joerg Sonnenberger 74ba2623ce Reapply 131644 including the missing header changes:
Introduce -fatal-assembler-warnings for the obvious purpose

llvm-svn: 131655
2011-05-19 18:00:13 +00:00
Eli Friedman 3e2f17499e Revert r131644; it's breaking the build.
llvm-svn: 131653
2011-05-19 17:48:09 +00:00
Joerg Sonnenberger 59b523169f Introduce -fatal-assembler-warnings for the obvious purpose
llvm-svn: 131644
2011-05-19 17:27:01 +00:00
Rafael Espindola 74b101f3e3 Parsing and plumbing for .cfi_sections.
llvm-svn: 131117
2011-05-10 01:10:18 +00:00
Daniel Dunbar 1bf128eaeb MC/AsmParser: Generalize a check.
llvm-svn: 130515
2011-04-29 17:53:11 +00:00
Devang Patel 17740e70d5 Reduce clutter in asm output. Do not emit source location as comment for each instruction.
llvm-svn: 129715
2011-04-18 20:26:49 +00:00
Rafael Espindola 539d96f01d Be consistent about being virtual and returning void in the cfi methods.
Implement the ones that were missing in the asm streamer.

llvm-svn: 129413
2011-04-12 23:59:07 +00:00
Rafael Espindola fd794affe5 Remove LastOffset from the asm parser.
llvm-svn: 129378
2011-04-12 18:53:30 +00:00
Rafael Espindola 1ec0f46169 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
llvm-svn: 129362
2011-04-12 16:12:03 +00:00
Rafael Espindola 2e1c9d2188 Implement .cfi_same_value.
llvm-svn: 129361
2011-04-12 15:31:05 +00:00
Eric Christopher 104af0619e To avoid printing out multiple error messages for cases like:
.long 80+08

go ahead and assume that if we've got an Error token that we handled it
already. Otherwise if it's a token we can't handle then go ahead and
return the default error.

llvm-svn: 129322
2011-04-12 00:03:13 +00:00
Rafael Espindola 82065cb6cf Implement cfi_rel_offset
llvm-svn: 129306
2011-04-11 21:49:50 +00:00
Rafael Espindola ffd2e5163b implement .cfi_adjust_cfa_offset.
llvm-svn: 129296
2011-04-11 20:29:16 +00:00
Rafael Espindola 88bc341061 Add support for .skip.
Patch by Roman Divacky.
Fixes PR9361.

llvm-svn: 129106
2011-04-07 20:26:23 +00:00
Kevin Enderby 5bbe957155 Added support symbolic floating point constants in the MC assembler for Infinity
and Nans with the same strings as GAS supports.  rdar://8673024

llvm-svn: 128488
2011-03-29 21:11:52 +00:00
Daniel Dunbar 6f4c9425eb MC: Improve some diagnostics on uses of '.' pseudo-symbol.
llvm-svn: 128289
2011-03-25 17:47:17 +00:00
Daniel Dunbar 3f56104be1 Tidyness.
llvm-svn: 128288
2011-03-25 17:47:14 +00:00
Joerg Sonnenberger afb36fad99 Restore r125595 (reverted in r126336) with modifications:
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

llvm-svn: 126443
2011-02-24 21:59:22 +00:00
Jim Grosbach 0c03a3a146 Revert r125595, which is an X86-only undocumented assembly syntax extension
enabled for all targets. Non-X86 targets should not have this behavior
enabled by default.

Joerg, if you would like to resubmit with the behavior conditionalized to be
X86-ELF only, that's fine.

llvm-svn: 126336
2011-02-23 21:26:51 +00:00
Roman Divacky 4e0f4957bc Add support for parsing [expr].
This is submitted by Joerg Sonnenberger and fixes his PR8685.

llvm-svn: 125595
2011-02-15 20:43:39 +00:00
Jim Grosbach 01af6c4641 More whitespace cleanup...
llvm-svn: 125388
2011-02-11 19:05:56 +00:00
Benjamin Kramer 7b7caf51e9 Support for .ifdef / .ifndef in the assembler parser. Patch by Joerg Sonnenberger.
llvm-svn: 125120
2011-02-08 22:29:56 +00:00
Bob Wilson 813bdf6e58 Do not sign extend floating-point values in the asm parser.
llvm-svn: 124831
2011-02-03 23:17:47 +00:00
Roman Divacky 9a58919c8e Enumerate .code16/32/64 instead of checking .code prefix. This
unbreaks some ARM tests.

llvm-svn: 124608
2011-01-31 21:19:43 +00:00
Roman Divacky bd59dff739 Error on all .code* directives instead of just .code16 as they
all lead to a silent miscompilation of code.

llvm-svn: 124603
2011-01-31 20:56:49 +00:00
Roman Divacky cd9ae95ae7 Error on .code16 instead of producing wrong (32bit) code.
llvm-svn: 124498
2011-01-28 19:29:48 +00:00
Roman Divacky 7e9e290952 Add support for parsing .float
llvm-svn: 124485
2011-01-28 14:20:32 +00:00
Nico Weber 4ada0d9164 PR8951: Support for .equiv in integrated assembler, patch by Jörg Sonnenberger!
llvm-svn: 124467
2011-01-28 03:04:41 +00:00
Roman Divacky ed5efb4053 Add support for specifying register name in cfi-register/offset/def
as well as register number.

llvm-svn: 124379
2011-01-27 17:16:37 +00:00