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Diffstat (limited to 'gcc/testsuite/gcc.dg/torture/mips-hilo-2.c')
-rw-r--r--gcc/testsuite/gcc.dg/torture/mips-hilo-2.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/mips-hilo-2.c b/gcc/testsuite/gcc.dg/torture/mips-hilo-2.c
new file mode 100644
index 000000000..dbe949307
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/mips-hilo-2.c
@@ -0,0 +1,27 @@
+/* Due to a reload inheritance bug, the asm statement in f() would be passed
+ the low part of u.ll on little-endian 32-bit targets. */
+/* { dg-do run { target mips*-*-* } } */
+
+extern void abort (void);
+extern void exit (int);
+
+unsigned int g;
+
+unsigned __attribute__ ((nomips16)) long long f (unsigned int x)
+{
+ union { unsigned long long ll; unsigned int parts[2]; } u;
+
+ u.ll = ((unsigned long long) x * x);
+ asm ("mflo\t%0" : "=r" (g) : "l" (u.parts[1]));
+ return u.ll;
+}
+
+int __attribute__ ((nomips16)) main ()
+{
+ union { unsigned long long ll; unsigned int parts[2]; } u;
+
+ u.ll = f (0x12345678);
+ if (g != u.parts[1])
+ abort ();
+ exit (0);
+}