OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* tree-sra.c (tree_sra): Update documentation. 

From-SVN: r83064
This commit is contained in:
Diego Novillo 2004-06-13 19:48:53 +00:00 committed by Diego Novillo
parent cdaa9fc44c
commit a18f61f853
2 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
gcc/ChangeLog
View File

@ -1,3 +1,7 @@
2004-06-13 Diego Novillo <dnovillo@redhat.com>
* tree-sra.c (tree_sra): Update documentation.
2004-06-13 Joseph S. Myers <jsm@polyomino.org.uk>
* c-typeck.c (comptypes, tagged_types_tu_compatible_p,

16
gcc/tree-sra.c
View File

@ -1130,16 +1130,14 @@ dump_sra_map (FILE *f)
re-writes non-aliased structure references into scalar temporaries. The
goal is to expose some/all structures to the scalar optimizers.
FNDECL is the function to process.
Scalarization proceeds in two main phases. First, every structure
referenced in the program that complies with can_be_scalarized_p is
marked for scalarization (find_candidates_for_sra).
VARS_TO_RENAME_P is a pointer to the set of variables that need to be
renamed into SSA after this pass is done. These are going to be all the
new scalars created by the SRA process. Notice that since this pass
creates new variables, the bitmap representing all the variables in the
program will be re-sized here.
PHASE indicates which dump file from the DUMP_FILES array to use when
dumping debugging information.
Second, a mapping between structure fields and scalar temporaries so
that every time a particular field of a particular structure is
referenced in the code, we replace it with its corresponding scalar
temporary (scalarize_structures).
TODO