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author | Reid Spencer <rspencer@reidspencer.com> | 2006-12-29 20:29:48 +0000 |
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committer | Reid Spencer <rspencer@reidspencer.com> | 2006-12-29 20:29:48 +0000 |
commit | b951bc02839e9862e02e17c7ea83e6437fc13442 (patch) | |
tree | 4ffa41ba3491e9ffc264f6f917be0d44f540c33f /tools/llvm-upgrade/UpgradeLexer.cpp.cvs | |
parent | d45bff90954220d64af0ab776fd5c0e50654406f (diff) |
For PR950:
Remove all grammar conflicts from assembly parsing. This change involves:
1. Making the "type" keyword not a primitive type (removes several
reduce/reduce conflicts)
2. Being more specific about which linkage types are allowed for functions
and global variables. In particular "appending" can no longer be
specified for a function. A differentiation was made between the various
internal and external linkage types.
3. Introduced the "define" keyword which is now required when defining a
function. This disambiguates several cases where a named function return
type could get confused with the definition of a new type. Using the
keyword eliminates all shift/reduce conflicts and the remaining
reduce/reduce conflicts.
These changes are necessary to implement the function parameter attributes
that will be introduced soon. Adding the function parameter attributes in
the presence of the shift/reduce and reduce/reduce conflicts led to severe
ambiguities that caused the parser to report syntax errors that needed to
be resolved. This patch resolves them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32770 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-upgrade/UpgradeLexer.cpp.cvs')
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