o they are implemented as a new metadata register class, whereby the
subregister indicates the metadata type (currently always a string)
and the superregister is an index in the metadata array (which
contains the strings). LLVM metadata can only be passed as parameters
to intrinsics in bitcode, so moves of metadata into other registers
triggers internal errors and when moving them into parameters, we
replace the parameter's register with the metadata register (and look
up the corresponding string when writing out the bitcode)
git-svn-id: trunk@43816 -
realconstnodes (fixes tcurrency1, tw33439 and tw36179 with LLVM)
o we need to load the fpu representation of the currency values,
not the scaled currency value
git-svn-id: trunk@43681 -
so that they can still be freed after the reference has been changed
(e.g. in case of array indexing or record field accesses) (mantis #33628)
git-svn-id: trunk@38814 -
o separate information for reading and writing, because e.g. in a
try-block, only the writes to local variables and parameters are
volatile (they have to be committed immediately in case the next
instruction causes an exception)
o for now, only references to absolute memory addresses are marked
as volatile
o the volatily information is (should be) properly maintained throughout
all code generators for all archictures with this patch
o no optimizers or other compiler infrastructure uses the volatility
information yet
o this functionality is not (yet) exposed at the language level, it
is only for internal code generator use right now
git-svn-id: trunk@34996 -
string constants instead of giving an internal error if we can't find it in
the current context (in most cases it will exist, but not when inlining a
routine from another unit that accesses a locally declared string constant)
git-svn-id: trunk@34373 -
unicodestring constants: specify the type of the pointer to the
string record (which is indirect) rather than that of the string
array (which will implicitly be the result of the getelementptr)
git-svn-id: trunk@31256 -
fpu: treat them as extended when they are loaded into registers, and as
int64 when loading from/storing to memory
git-svn-id: branches/hlcgllvm@26048 -
