diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 2 | ||||
| -rw-r--r-- | gcc/tree-ssa-propagate.c | 4 |
3 files changed, 7 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9145ba4..2138bf6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-08-29 Diego Novillo <dnovillo@redhat.com> + + * tree-ssa-ccp.c (ccp_visit_stmt): Remove #if 0 guards. + * tree-ssa-propagate.c: Fix documentation. + 2004-08-29 Richard Sandiford <rsandifo@redhat.com> * config/mips/mips.md (*mov[sd]f_on_*): Redefine using :SCALARF. diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 70a2dad..928e8c4 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1168,10 +1168,8 @@ ccp_visit_stmt (tree stmt, edge *taken_edge_p, tree *output_p) /* Any other kind of statement is not interesting for constant propagation and, therefore, not worth simulating. */ -#if 0 if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "No interesting values produced. Marked VARYING.\n"); -#endif /* Definitions made by statements other than assignments to SSA_NAMEs represent unknown modifications to their outputs. diff --git a/gcc/tree-ssa-propagate.c b/gcc/tree-ssa-propagate.c index 1577a9c..0eeee60 100644 --- a/gcc/tree-ssa-propagate.c +++ b/gcc/tree-ssa-propagate.c @@ -50,7 +50,7 @@ proceeds as follows: 1- Initially, all edges of the CFG are marked not executable and - the CFG worklist seeded with all the statements in the entry + the CFG worklist is seeded with all the statements in the entry basic block (block 0). 2- Every statement S is simulated with a call to the call-back @@ -75,7 +75,7 @@ 3- PHI nodes are simulated with a call to SSA_PROP_VISIT_PHI. The return value from SSA_PROP_VISIT_PHI has the same semantics as - described in #3. + described in #2. 4- Three work lists are kept. Statements are only added to these lists if they produce one of SSA_PROP_INTERESTING or |