diff options
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index db8555fdc6a..7c51ad79dd6 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -49,7 +49,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA /* The aliasing API provided here solves related but different problems: - Say there exists (in c) + Say there exists (in c) struct X { struct Y y1; @@ -87,7 +87,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA this may be too conservative for some C++ types. The pass ipa-type-escape does this analysis for the types whose - instances do not escape across the compilation boundary. + instances do not escape across the compilation boundary. Historically in GCC, these two problems were combined and a single data structure was used to represent the solution to these @@ -109,11 +109,11 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA `double'. (However, a store to an `int' cannot alias a `double' and vice versa.) We indicate this via a tree structure that looks like: - struct S - / \ + struct S + / \ / \ - |/_ _\| - int double + |/_ _\| + int double (The arrows are directed and point downwards.) In this situation we say the alias set for `struct S' is the @@ -730,7 +730,7 @@ record_component_aliases (tree type) { int i; tree binfo, base_binfo; - + for (binfo = TYPE_BINFO (type), i = 0; BINFO_BASE_ITERATE (binfo, i, base_binfo); i++) record_alias_subset (superset, @@ -1023,7 +1023,7 @@ record_set (rtx dest, rtx set, void *data ATTRIBUTE_UNUSED) If neither case holds, reject the original base value as invalid. Note that the following situation is not detected: - extern int x, y; int *p = &x; p += (&y-&x); + extern int x, y; int *p = &x; p += (&y-&x); ANSI C does not allow computing the difference of addresses of distinct top level objects. */ @@ -1091,7 +1091,7 @@ clear_reg_alias_info (rtx reg) /* If a value is known for REGNO, return it. */ -rtx +rtx get_reg_known_value (unsigned int regno) { if (regno >= FIRST_PSEUDO_REGISTER) @@ -1620,7 +1620,7 @@ addr_side_effect_eval (rtx addr, int size, int n_refs) if (offset) addr = gen_rtx_PLUS (GET_MODE (addr), XEXP (addr, 0), - GEN_INT (offset)); + GEN_INT (offset)); else addr = XEXP (addr, 0); addr = canon_rtx (addr); @@ -2001,14 +2001,14 @@ nonoverlapping_memrefs_p (rtx x, rtx y) /* Unless both have exprs, we can't tell anything. */ if (exprx == 0 || expry == 0) return 0; - + /* If both are field references, we may be able to determine something. */ if (TREE_CODE (exprx) == COMPONENT_REF && TREE_CODE (expry) == COMPONENT_REF && nonoverlapping_component_refs_p (exprx, expry)) return 1; - + /* If the field reference test failed, look at the DECLs involved. */ moffsetx = MEM_OFFSET (x); if (TREE_CODE (exprx) == COMPONENT_REF) @@ -2020,7 +2020,7 @@ nonoverlapping_memrefs_p (rtx x, rtx y) tree fieldcontext = DECL_FIELD_CONTEXT (field); if (ipa_type_escape_field_does_not_clobber_p (fieldcontext, TREE_TYPE (field))) - return 1; + return 1; } { tree t = decl_for_component_ref (exprx); @@ -2048,7 +2048,7 @@ nonoverlapping_memrefs_p (rtx x, rtx y) tree fieldcontext = DECL_FIELD_CONTEXT (field); if (ipa_type_escape_field_does_not_clobber_p (fieldcontext, TREE_TYPE (field))) - return 1; + return 1; } { tree t = decl_for_component_ref (expry); @@ -2506,8 +2506,8 @@ init_alias_analysis (void) #endif /* If this insn has a noalias note, process it, Otherwise, - scan for sets. A simple set will have no side effects - which could change the base value of any other register. */ + scan for sets. A simple set will have no side effects + which could change the base value of any other register. */ if (GET_CODE (PATTERN (insn)) == SET && REG_NOTES (insn) != 0 @@ -2564,7 +2564,7 @@ init_alias_analysis (void) /* Now propagate values from new_reg_base_value to reg_base_value. */ gcc_assert (maxreg == (unsigned int) max_reg_num()); - + for (ui = 0; ui < maxreg; ui++) { if (new_reg_base_value[ui] |