[gcc r13-93] testsuite: Skip cases for default_packed targets

[Dimitar Dimitrov <dimitar@gcc.gnu.org>]

https://gcc.gnu.org/g:8381665fdd0ba9bea2ef6274cd995cf591677de3

commit r13-93-g8381665fdd0ba9bea2ef6274cd995cf591677de3
Author: Dimitar Dimitrov <dimitar@dinux.eu>
Date:   Fri Apr 15 22:58:50 2022 +0300

    testsuite: Skip cases for default_packed targets
    
    The memchr test cases expect padding to be present in structures.  But
    this is not true for targets which pack by default.  Skip these test
    cases in order to avoid static assert errors when checking field offsets.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.dg/memchr.c: Skip for default_packed targets.
            * gcc.dg/memcmp-3.c: Ditto.
    
    Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>

Diff:
---
 gcc/testsuite/gcc.dg/memchr.c   | 3 ++-
 gcc/testsuite/gcc.dg/memcmp-3.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/memchr.c b/gcc/testsuite/gcc.dg/memchr.c
index fb21d58b476..27524b82520 100644
--- a/gcc/testsuite/gcc.dg/memchr.c
+++ b/gcc/testsuite/gcc.dg/memchr.c
@@ -1,6 +1,7 @@
 /* PR middle-end/78257 - missing memcmp optimization with constant arrays
    { dg-do compile }
-   { dg-options "-O -Wall -fdump-tree-optimized" } */
+   { dg-options "-O -Wall -fdump-tree-optimized" }
+   { dg-skip-if "test assumes structs are not packed" { default_packed } } */
 
 typedef __INT8_TYPE__  int8_t;
 typedef __INT16_TYPE__ int16_t;
diff --git a/gcc/testsuite/gcc.dg/memcmp-3.c b/gcc/testsuite/gcc.dg/memcmp-3.c
index b5b8ac1209f..8ddde996c2f 100644
--- a/gcc/testsuite/gcc.dg/memcmp-3.c
+++ b/gcc/testsuite/gcc.dg/memcmp-3.c
@@ -1,7 +1,8 @@
 /* PR middle-end/78257 - missing memcmp optimization with constant arrays
    { dg-do compile }
    { dg-options "-O -Wall -fdump-tree-optimized" }
-   { dg-skip-if "missing data representation" { "pdp11-*-*" } } */
+   { dg-skip-if "missing data representation" { "pdp11-*-*" } }
+   { dg-skip-if "test assumes structs are not packed" { default_packed } } */
 
 #define offsetof(T, m) __builtin_offsetof (T, m)