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Fix PR ada/98228

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This is the profiled bootstrap failure for s390x/Linux on the mainline,
which has been introduced by the modref pass but actually exposing an
existing issue in the maybe_pad_type function that is visible on s390x.

The issue is too weak a test for the addressability of the inner component.

gcc/ada/
	    Marius Hillenbrand  <mhillen@linux.ibm.com>

	PR ada/98228
	* gcc-interface/utils.c (maybe_pad_type): Test the size of the new
	packable type instead of its alignment for addressability's sake.
This commit is contained in:
Eric Botcazou 2021-01-26 18:54:26 +01:00
parent 6e44c09b2d
commit 9c41bcc59c
1 changed files with 1 additions and 1 deletions
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gcc/ada/gcc-interface/utils.c
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@ -1571,7 +1571,7 @@ maybe_pad_type (tree type, tree size, unsigned int align,
{
tree packable_type = make_packable_type (type, true, align);
if (TYPE_MODE (packable_type) != BLKmode
&& align >= TYPE_ALIGN (packable_type))
&& compare_tree_int (TYPE_SIZE (packable_type), align) <= 0)
type = packable_type;
}