diff options
| author | Kazu Hirata <kazu@cs.umass.edu> | 2005-03-05 13:49:43 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2005-03-05 13:49:43 +0000 |
| commit | 52c3e649f639aee4dd469b41a32c9a1134eb81f1 (patch) | |
| tree | afe2154c65a8f2e29991715f4bb5cb09f4853283 /gcc | |
| parent | 74231b0f2c5e178da69919a807d7054f64d7bf59 (diff) | |
| download | gcc-52c3e649f639aee4dd469b41a32c9a1134eb81f1.zip gcc-52c3e649f639aee4dd469b41a32c9a1134eb81f1.tar.gz gcc-52c3e649f639aee4dd469b41a32c9a1134eb81f1.tar.bz2 | |
predict.c (apply_return_prediction): Standardize PHI chain walking.
* predict.c (apply_return_prediction): Standardize PHI chain
walking.
* tree-ssa.c (ssa_redirect_edge): Likewise.
From-SVN: r95930
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/predict.c | 11 | ||||
| -rw-r--r-- | gcc/tree-ssa.c | 6 |
3 files changed, 11 insertions, 12 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bd96cf9..6077f1a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-03-05 Kazu Hirata <kazu@cs.umass.edu> + + * predict.c (apply_return_prediction): Standardize PHI chain + walking. + * tree-ssa.c (ssa_redirect_edge): Likewise. + 2005-03-05 Richard Sandiford <rsandifo@redhat.com> * doc/invoke.texi: Document new MIPS -msym32 and -mno-sym32 options. diff --git a/gcc/predict.c b/gcc/predict.c index bf594ac..9a00f0b 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -1207,14 +1207,9 @@ apply_return_prediction (int *heads) || !SSA_NAME_DEF_STMT (return_val) || TREE_CODE (SSA_NAME_DEF_STMT (return_val)) != PHI_NODE) return; - phi = SSA_NAME_DEF_STMT (return_val); - while (phi) - { - tree next = PHI_CHAIN (phi); - if (PHI_RESULT (phi) == return_val) - break; - phi = next; - } + for (phi = SSA_NAME_DEF_STMT (return_val); phi; phi = PHI_CHAIN (phi)) + if (PHI_RESULT (phi) == return_val) + break; if (!phi) return; phi_num_args = PHI_NUM_ARGS (phi); diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index 9346d6c..99b9627 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -53,15 +53,13 @@ Boston, MA 02111-1307, USA. */ edge ssa_redirect_edge (edge e, basic_block dest) { - tree phi, next; + tree phi; tree list = NULL, *last = &list; tree src, dst, node; /* Remove the appropriate PHI arguments in E's destination block. */ - for (phi = phi_nodes (e->dest); phi; phi = next) + for (phi = phi_nodes (e->dest); phi; phi = PHI_CHAIN (phi)) { - next = PHI_CHAIN (phi); - if (PHI_ARG_DEF (phi, e->dest_idx) == NULL_TREE) continue; |