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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/pr37870.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/pr37870.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/pr37870.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/pr37870.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/pr37870.c
new file mode 100644
index 000000000..19cfb2058
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/pr37870.c
@@ -0,0 +1,29 @@
+/* PR middle-end/37870 */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+unsigned int
+foo (long double x)
+{
+ struct { char a[8]; unsigned int b:7; } c;
+ __builtin_memcpy (&c, &x, sizeof (c));
+ return c.b;
+}
+
+unsigned int
+bar (long double x)
+{
+ union { struct { char a[8]; unsigned int b:7; } c; long double d; } u;
+ u.d = x;
+ return u.c.b;
+}
+
+int
+main (void)
+{
+ if (foo (1.245L) != bar (1.245L)
+ || foo (245.67L) != bar (245.67L)
+ || foo (0.00567L) != bar (0.00567L))
+ __builtin_abort ();
+ return 0;
+}