2a302210d0
Correct compatibility with the GNU Assembler's handling of comparison ops
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GAS returns -1 for a comparison operator if the result is true and 0 if false.
https://www.sourceware.org/binutils/docs-2.12/as.info/Infix-Ops.html#Infix%20Ops
llvm-svn: 332215
2018-05-14 05:25:36 +00:00
4a85643907
[MC] Use LShr for constant evaluation of ">>" on non-arm64 darwin.
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Follow-up to r235963: this matches other assemblers and is less
unexpected (e.g. PR23227).
llvm-svn: 252681
2015-11-11 00:51:36 +00:00
513e744d9b
AsmParser: Disable Darwin-style macro argument expansion on non-darwin targets.
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There is code in the wild that relies on $0 not being expanded.
llvm-svn: 201784
2014-02-20 13:36:32 +00:00
ca08df756e
Fix a bug in the MC asm parser evaluating expressions. It was treating:
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A = 9
B = 3 * A - 2 * A + 1 as B = 3 * A - (2 * A + 1)
rdar://13816516
llvm-svn: 181366
2013-05-07 21:40:58 +00:00
bd16424f91
Fix AsmParser binary precedence for shift operators.
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rdar://9976729
llvm-svn: 138208
2011-08-20 16:24:13 +00:00
3322f02a03
Tidy up. Whitespace.
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llvm-svn: 138207
2011-08-20 16:10:09 +00:00
0c03a3a146
Revert r125595, which is an X86-only undocumented assembly syntax extension
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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
4e0f4957bc
Add support for parsing [expr].
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This is submitted by Joerg Sonnenberger and fixes his PR8685.
llvm-svn: 125595
2011-02-15 20:43:39 +00:00
b3a48f3459
MC/AsmParser: Fix relative precedence of {+,-} and comparison ops.
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llvm-svn: 117299
2010-10-25 20:18:56 +00:00
7484d2cbec
MC/AsmLexer: Fix bug in source location for Slash token.
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llvm-svn: 117298
2010-10-25 20:18:53 +00:00
95db1cc022
tweak test.
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llvm-svn: 117297
2010-10-25 20:18:49 +00:00
0c193ca626
MC/AsmParser: Rewrite test to actually check some parts of expression parsing,
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now that we have macros and friends. Uncovered a bug in macro expansion...
llvm-svn: 117295
2010-10-25 20:18:41 +00:00
d388c93f87
MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser.
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llvm-svn: 108180
2010-07-12 19:37:35 +00:00
6b55cb9cd8
implement mc asmparser support for '.', which gets the
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current PC. rdar://7834775
We now produce an identical .o file compared to the cctools
assembler for something like this:
_f0:
L0:
jmp L1
.long . - L0
L1:
jmp A
.long . - L1
.zerofill __DATA,_bss,A,0
llvm-svn: 101227
2010-04-14 04:40:28 +00:00
807a3bcbbb
fix a parsing problem on instructions like:
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movw $8, (_cost_table_-L97$pb)+66(%eax)
After the parens, we could still have a binop.
llvm-svn: 94345
2010-01-24 01:07:33 +00:00
8c6bad2f66
llvm-mc: Add -triple, and start fetching the target asm printer.
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llvm-svn: 76257
2009-07-17 22:38:58 +00:00
8561b6aea0
llvm-mc: Symbols in a relocatable expression of the (a - b + cst) form are
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allowed to be undefined when the expression is seen, we cannot enforce the
same-section requirement until the entire assembly file has been seen.
llvm-svn: 74565
2009-06-30 22:49:27 +00:00
75630b355a
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc.
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llvm-svn: 74498
2009-06-30 02:10:03 +00:00
5992b4a211
llvm-mc: Recognize C++ style comments.
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llvm-svn: 74463
2009-06-29 22:00:57 +00:00
7e8d6c7215
MC: Improve expression parsing and implement evaluation of absolute expressions.
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llvm-svn: 74448
2009-06-29 20:37:27 +00:00
Bill Wendling