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(assemble_variable): For array whose size comes from the initializer, determine proper alignment here.

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(assemble_variable): For array whose size comes from
the initializer, determine proper alignment here.
(assemble_align): New function.

From-SVN: r4996
This commit is contained in:
Richard Stallman 1993-07-27 05:27:28 +00:00
parent e507581872
commit a785e67e7b
1 changed files with 17 additions and 0 deletions
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17
gcc/varasm.c
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@ -666,6 +666,16 @@ assemble_zeros (size)
ASM_OUTPUT_SKIP (asm_out_file, size);
}
/* Assemble an alignment pseudo op for an ALIGN-bit boundary. */
void
assemble_align (align)
int align;
{
if (align > BITS_PER_UNIT)
ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
}
/* Assemble a string constant with the specified C string as contents. */
void
@ -971,6 +981,13 @@ assemble_variable (decl, top_level, at_end, dont_output_data)
/* Compute and output the alignment of this data. */
align = DECL_ALIGN (decl);
/* In the case for initialing an array whose length isn't specified,
where we have not yet been able to do the layout,
figure out the proper alignment now. */
if (dont_output_data && DECL_SIZE (decl) == 0
&& TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
align = MAX (align, TYPE_ALIGN (TREE_TYPE (TREE_TYPE (decl))));
/* Some object file formats have a maximum alignment which they support.
In particular, a.out format supports a maximum alignment of 4. */
#ifndef MAX_OFILE_ALIGNMENT