diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/doc/rtl.texi | 2 | ||||
| -rw-r--r-- | gcc/see.c | 16 |
3 files changed, 14 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dffedcd9afa..ae20bbe0073 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-05-22 Kazu Hirata <kazu@codesourcery.com> + + * doc/rtl.texi: Fix a typo. + * see.c: Fix comment typos. + 2006-05-21 Mike Stump <mrs@apple.com> * config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas. diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index ebad35da3a2..20be3819de8 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -2014,7 +2014,7 @@ fixed-point mode. @cindex arithmetic shift with signed saturation @item (ashift:@var{m} @var{x} @var{c}) @itemx (ss_ashift:@var{m} @var{x} @var{c}) -These two expressions epresent the result of arithmetically shifting @var{x} +These two expressions represent the result of arithmetically shifting @var{x} left by @var{c} places. They differ in their behavior on overflow of integer modes. An @code{ashift} operation is a plain shift with no special behaviour in case of a change in the sign bit; @code{ss_ashift} saturates to the minimum diff --git a/gcc/see.c b/gcc/see.c index 77fb6600772..12c71d390c4 100644 --- a/gcc/see.c +++ b/gcc/see.c @@ -533,7 +533,7 @@ struct see_ref_s /* The insn of the ref. */ rtx insn; /* The merged insn that was formed from the reference's insn and extensions. - If all merges faile it remains NULL. */ + If all merges failed, it remains NULL. */ rtx merged_insn; /* The def extensions of the reference that were not merged with it. */ @@ -751,7 +751,7 @@ see_get_extension_data (rtx extension, enum machine_mode *source_mode) (the register r on both sides of the set is the same register). And recognize it. If the recognition failed, this is very bad, return NULL (This will abort - the entier optimization). + the entire optimization). Otherwise, return the generated instruction. */ static rtx @@ -2134,7 +2134,7 @@ see_execute_LCM (void) /* In this function we set the register properties for the register that is defined and extended in the reference. The properties are defined in see_register_properties structure which is - allocated per basic bloack and per register. + allocated per basic block and per register. Later the extension is inserted into the see_pre_extension_hash for the next phase of the optimization. @@ -2205,7 +2205,7 @@ see_set_prop_merged_def (void **slot, void *b) /* In this function we set the register properties for the register that is defined but not extended in the reference. The properties are defined in see_register_properties structure which is - allocated per basic bloack and per register. + allocated per basic block and per register. Later the extension is inserted into the see_pre_extension_hash for the next phase of the optimization. @@ -2276,7 +2276,7 @@ see_set_prop_unmerged_def (void **slot, void *b) /* In this function we set the register properties for the register that is used in the reference. The properties are defined in see_register_properties structure which is - allocated per basic bloack and per register. + allocated per basic block and per register. When a redundant use extension is found it is removed from the hash of the reference. If the extension is non redundant it is inserted into the @@ -2331,7 +2331,7 @@ see_set_prop_unmerged_use (void **slot, void *b) else if (curr_prop->last_def < 0 && curr_prop->first_se_before_any_def >= 0) { - /* In this case the extension is localy redundant. */ + /* In this case the extension is locally redundant. */ htab_clear_slot (curr_ref_s->use_se_hash, (PTR *)slot); locally_redundant = true; } @@ -2341,7 +2341,7 @@ see_set_prop_unmerged_use (void **slot, void *b) else if (curr_prop->last_def >= 0 && curr_prop->first_se_after_last_def >= 0) { - /* In this case the extension is localy redundant. */ + /* In this case the extension is locally redundant. */ htab_clear_slot (curr_ref_s->use_se_hash, (PTR *)slot); locally_redundant = true; } @@ -2694,7 +2694,7 @@ see_merge_one_use_extension (void **slot, void *b) ref: set (dest_reg) (rhs) def_se: set (dest_extension_reg) (sign/zero_extend (source_extension_reg)) - where dest_reg and source_extension_reg can both be subregs (togather) + where dest_reg and source_extension_reg can both be subregs (together) and (REGNO (dest_reg) == REGNO (source_extension_reg)) The merge is done by generating, simplifying and recognizing the pattern: |