llvm/lib at b74b88edac9ab490ba428aef0bdebc957399bbd7 - llvm

RPCS3/llvm

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History

Hans Wennborg b74b88edac Re-commit r192758 - MC: quote tricky symbol names in asm output

The reason this got reverted was that the @feat.00 symbol which was emitted
for every TU became quoted, and on cygwin/mingw we use the gas assembler which
couldn't handle the quotes.

This commit fixes the problem by only emitting @feat.00 for win32, where we use
clang -cc1as to assemble. gas would just drop this symbol anyway, so there is no
loss there.

With @feat.00 gone, there shouldn't be quoted symbols showing up on cygwin since
it uses the Itanium ABI, which doesn't put these funny characters in symbols.

> Because of win32 mangling, we produce symbol and section names with
> funny characters in them, most notably @ characters.
>
> MC would choke on trying to parse its own assembly output. This patch addresses
> that by:
>
> - Making @ trigger quoting of symbol names
> - Also quote section names in the same way
> - Just parse section names like other identifiers (to allow for quotes)
> - Don't assume @ signifies a symbol variant if it is in a string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192859 91177308-0d34-0410-b5e6-96231b3b80d8

2013-10-17 01:13:02 +00:00

Analysis

Remove x86_sse42_crc32_64_8 intrinsic. It has no functional difference from x86_sse42_crc32_32_8 and was not mapped to a clang builtin. I'm not even sure why this form of the instruction is even called out explicitly in the docs. Also add AutoUpgrade support to convert it into the other intrinsic with appropriate trunc and zext.

2013-10-15 05:20:47 +00:00

AsmParser

Add a GlobalAlias::isValidLinkage to reduce code duplication.

2013-10-09 16:07:32 +00:00

Bitcode

Update comment list of GLOBALVAR modifiers in BitcodeWriter to include externally_initialized.

2013-10-14 22:36:51 +00:00

CodeGen

DIEHash: Include the type's context in the type hash.