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[Trivial] tree-sra.c: A few comment fixes/additions. 

* tree-sra.c (scalarizable_type_p): Comment variable-length arrays.
	(completely_scalarize): Comment zero-length arrays.
	(get_access_replacement): Correct comment re. precondition.

From-SVN: r229577
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Alan Lawrence 2015-10-30 13:27:10 +00:00 committed by Alan Lawrence
parent 2ef543e470
commit 56517dda83
2 changed files with 9 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-10-30 Alan Lawrence <alan.lawrence@arm.com>
* tree-sra.c (scalarizable_type_p): Comment variable-length arrays.
(completely_scalarize): Comment zero-length arrays.
(get_access_replacement): Correct comment re. precondition.
2015-10-30 Venkataramanan Kumar <venkataramanan.kumar@amd.com>
* config/i386/i386.c (get_builtin_code_for_version): Set priority

4
gcc/tree-sra.c
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@ -956,6 +956,7 @@ scalarizable_type_p (tree type)
;
else if ((tree_to_shwi (TYPE_SIZE (type)) <= 0)
|| !tree_fits_shwi_p (TYPE_MAX_VALUE (TYPE_DOMAIN (type))))
/* Variable-length array, do not allow scalarization. */
return false;
tree elem = TREE_TYPE (type);
@ -1005,6 +1006,7 @@ completely_scalarize (tree base, tree decl_type, HOST_WIDE_INT offset, tree ref)
tree minidx = TYPE_MIN_VALUE (TYPE_DOMAIN (decl_type));
gcc_assert (TREE_CODE (minidx) == INTEGER_CST);
tree maxidx = TYPE_MAX_VALUE (TYPE_DOMAIN (decl_type));
/* Skip (some) zero-length arrays; others have MAXIDX == MINIDX - 1. */
if (maxidx)
{
gcc_assert (TREE_CODE (maxidx) == INTEGER_CST);
@ -2146,7 +2148,7 @@ create_access_replacement (struct access *access)
return repl;
}
/* Return ACCESS scalar replacement, create it if it does not exist yet. */
/* Return ACCESS scalar replacement, which must exist. */
static inline tree
get_access_replacement (struct access *access)