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authoraoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4>2003-03-04 05:55:20 +0000
committeraoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4>2003-03-04 05:55:20 +0000
commitc69ac54b7c9fc39e870c508f2c4a9b5c6452c7b5 (patch)
treee7e48f37fce8a8de7ebbb70ce45eb94557a6cf5e /gcc/testsuite/gcc.c-torture/execute/20030222-1.c
parentfd3ac62f59231c17eff73bc5edece2759b02fd14 (diff)
downloadgcc-c69ac54b7c9fc39e870c508f2c4a9b5c6452c7b5.tar.gz
* gcc.c-torture/execute/20030222-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63767 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20030222-1.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/20030222-1.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20030222-1.c b/gcc/testsuite/gcc.c-torture/execute/20030222-1.c
new file mode 100644
index 00000000000..93d1e3c4e80
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20030222-1.c
@@ -0,0 +1,27 @@
+/* Verify that we get the low part of the long long as an int. We
+ used to get it wrong on big-endian machines, if register allocation
+ succeeded at all. We use volatile to make sure the long long is
+ actually truncated to int, in case a single register is wide enough
+ for a long long. */
+
+#include <limits.h>
+
+void
+ll_to_int (long long x, volatile int *p)
+{
+ int i;
+ asm ("" : "=r" (i) : "0" (x));
+ *p = i;
+}
+
+int val = INT_MIN + 1;
+
+int main() {
+ volatile int i;
+
+ ll_to_int ((long long)val, &i);
+ if (i != val)
+ abort ();
+
+ exit (0);
+}