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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c new file mode 100644 index 000000000..aa3f82ce0 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr29215.c @@ -0,0 +1,33 @@ +/* PR middle-end/29215 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-gimple" } */ + +char buf[5 * sizeof (int) + 1] __attribute__((aligned (__alignof__ (int)))); + +static void +foo (int arg1, int arg2, int arg3, int arg4, int arg5) +{ + __builtin_memcpy (buf, &arg1, sizeof (int)); + __builtin_memcpy (buf + sizeof (int), &arg2, sizeof (int)); + __builtin_memcpy (buf + 2 * sizeof (int), &arg3, sizeof (int)); + __builtin_memcpy (buf + 3 * sizeof (int), &arg4, sizeof (int)); + __builtin_memcpy (buf + 4 * sizeof (int), &arg5, sizeof (int)); +} + +int +main (void) +{ + union { char buf[4]; int i; } u; + u.i = 0; + u.buf[0] = 'a'; + u.buf[1] = 'b'; + u.buf[2] = 'c'; + u.buf[3] = 'd'; + foo (u.i, u.i, u.i, u.i, u.i); + buf[5 * sizeof (int)] = '\0'; + __builtin_puts (buf); + return 0; +} + +/* { dg-final { scan-tree-dump-not "memcpy" "gimple" } } */ +/* { dg-final { cleanup-tree-dump "gimple" } } */ |