Hi all,
PR63661 is effectively fixed by my previous patch here:
https://gcc.gnu.org/ml/gcc-patches/2014-11/msg02253.html
This patch add a test case for it.
Okay for trunk?
gcc/testsuite/ChangeLog:
2014-11-27 Renlin Li renlin...@arm.com
PR target/63661
* gcc.target/i386/pr63661.c: New.diff --git a/gcc/testsuite/gcc.target/i386/pr63661.c b/gcc/testsuite/gcc.target/i386/pr63661.c
new file mode 100644
index 000..8b55146
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr63661.c
@@ -0,0 +1,77 @@
+/* PR target/63661 */
+/* { dg-do run } */
+/* { dg-require-effective-target fpic } */
+/* { dg-options -mtune=nehalem -fPIC -O2 } */
+
+static void __attribute__((noinline,noclone,hot))
+foo (double a, double q, double *ff, double *gx, int e, int ni)
+{
+ union
+{
+ double n;
+ unsigned long long o;
+} punner;
+
+ punner.n = q;
+ __builtin_printf(B: 0x%016llx %g\n, punner.o, q);
+
+ if(q != 5)
+__builtin_abort();
+}
+
+static int __attribute__((noinline,noclone,hot))
+bar (int order, double q, double c[])
+{
+ int ni, nn, i, e;
+ double g2, x2, de, s, ratio, ff;
+
+ nn = 0;
+ e = order 1;
+ s = 0;
+ ratio = 0;
+ x2 = 0;
+ g2 = 0;
+
+ if(q == 0.0)
+return 0;
+
+ if (order 5)
+{
+ ratio = 1.0 / q;
+ nn = order;
+}
+
+ ni = -nn;
+
+ while(1)
+{
+ de = ratio - g2 - x2;
+
+ foo (0, q, ff, g2, e, ni);
+
+ if((int)de == 0)
+break;
+}
+
+ s += 2 * nn * c[nn];
+
+ for (i = 0; i 1; i++)
+{
+ c[0] = nn;
+ for (; i 10; i++)
+c[i] = 0.0;
+ c[0] /= s;
+}
+
+ return 0;
+}
+
+int
+main ()
+{
+ double c[1000];
+
+ __builtin_printf(A: 0x%016llx\n, (unsigned long long)c);
+ bar (1, 5.0, c);
+ return 0;
+}
