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| author | Alexandre Oliva <aoliva@cygnus.com> | 2000-05-26 01:49:38 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2000-05-26 01:49:38 +0000 |
| commit | 2d4aecb33af569f9994d756e03f04326da59ec2a (patch) | |
| tree | b60fc94b7dc8688d66ee58706f53651915ae1741 /gcc/emit-rtl.c | |
| parent | 476f28692a80a42632b33b7fb1f0725f81bdbce0 (diff) | |
| download | gcc-2d4aecb33af569f9994d756e03f04326da59ec2a.zip gcc-2d4aecb33af569f9994d756e03f04326da59ec2a.tar.gz gcc-2d4aecb33af569f9994d756e03f04326da59ec2a.tar.bz2 | |
emit-rtl.c (reset_used_decls): New function.
* emit-rtl.c (reset_used_decls): New function.
(unshare_all_rtl_again): Call it.
From-SVN: r34184
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index a455c1e..d9a6c65 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -179,6 +179,7 @@ static rtx find_line_note PARAMS ((rtx)); static void mark_sequence_stack PARAMS ((struct sequence_stack *)); static void unshare_all_rtl_1 PARAMS ((rtx)); static void unshare_all_decls PARAMS ((tree)); +static void reset_used_decls PARAMS ((tree)); static hashval_t const_int_htab_hash PARAMS ((const void *)); static int const_int_htab_eq PARAMS ((const void *, const void *)); @@ -1733,6 +1734,9 @@ unshare_all_rtl_again (insn) reset_used_flags (LOG_LINKS (p)); } + /* Make sure that virtual stack slots are not shared. */ + reset_used_decls (DECL_INITIAL (cfun->decl)); + /* Make sure that virtual parameters are not shared. */ for (decl = DECL_ARGUMENTS (cfun->decl); decl; decl = TREE_CHAIN (decl)) reset_used_flags (DECL_RTL (decl)); @@ -1768,13 +1772,30 @@ unshare_all_decls (blk) /* Copy shared decls. */ for (t = BLOCK_VARS (blk); t; t = TREE_CHAIN (t)) - DECL_RTL (t) = copy_rtx_if_shared (DECL_RTL (t)); + DECL_RTL (t) = copy_rtx_if_shared (DECL_RTL (t)); /* Now process sub-blocks. */ for (t = BLOCK_SUBBLOCKS (blk); t; t = TREE_CHAIN (t)) unshare_all_decls (t); } +/* Go through all virtual stack slots of a function and mark them as + not shared. */ +static void +reset_used_decls (blk) + tree blk; +{ + tree t; + + /* Mark decls. */ + for (t = BLOCK_VARS (blk); t; t = TREE_CHAIN (t)) + reset_used_flags (DECL_RTL (t)); + + /* Now process sub-blocks. */ + for (t = BLOCK_SUBBLOCKS (blk); t; t = TREE_CHAIN (t)) + reset_used_decls (t); +} + /* Mark ORIG as in use, and return a copy of it if it was already in use. Recursively does the same for subexpressions. */ |