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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c
new file mode 100644
index 000000000..00b7bfd71
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/bitfield1.c
@@ -0,0 +1,55 @@
+// Test for bitfield alignment in structs on IA-32
+// { dg-do run }
+// { dg-require-effective-target ia32 }
+// { dg-options "-O2" }
+// { dg-options "-mno-align-double -mno-ms-bitfields" { target i?86-*-interix* i?86-*-cygwin* i?86-*-mingw*} }
+
+extern void abort (void);
+extern void exit (int);
+
+struct A
+{
+ char a;
+ long long b : 61;
+ char c;
+} a, a4[4];
+
+struct B
+{
+ char d;
+ struct A e;
+ char f;
+} b;
+
+struct C
+{
+ char g;
+ union U
+ {
+ char u1;
+ long long u2;
+ long long u3 : 64;
+ } h;
+ char i;
+} c;
+
+int main (void)
+{
+ if (&a.c - &a.a != 12)
+ abort ();
+ if (sizeof (a) != 16)
+ abort ();
+ if (sizeof (a4) != 4 * 16)
+ abort ();
+ if (sizeof (b) != 2 * 4 + 16)
+ abort ();
+ if (__alignof__ (b.e) != 4)
+ abort ();
+ if (&c.i - &c.g != 12)
+ abort ();
+ if (sizeof (c) != 16)
+ abort ();
+ if (__alignof__ (c.h) != 4)
+ abort ();
+ exit (0);
+}