From 9c41bcc59c237aaa629e271f88c20a90cb8e0af5 Mon Sep 17 00:00:00 2001
From: Eric Botcazou <ebotcazou@adacore.com>
Date: Tue, 26 Jan 2021 18:54:26 +0100
Subject: [PATCH] Fix PR ada/98228
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.
---
gcc/ada/gcc-interface/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/ada/gcc-interface/utils.c b/gcc/ada/gcc-interface/utils.c
index d52220a675e3..c503bfbb36d7 100644
--- a/gcc/ada/gcc-interface/utils.c
+++ b/gcc/ada/gcc-interface/utils.c
@@ -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;
}
--
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