obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 61 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr32293.c b/gcc/testsuite/gcc.dg/pr32293.c
new file mode 100644
index 000000000..fb1268ba1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr32293.c
@@ -0,0 +1,61 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+unsigned int _IDEC_glbround;
+unsigned int _IDEC_glbflags;
+typedef unsigned UINT32;
+typedef signed SINT32;
+typedef unsigned long long UINT64;
+typedef signed long long SINT64;
+typedef
+__attribute__ ((aligned(16)))
+     struct {
+       UINT64 w[2];
+     } UINT128;
+
+static __inline UINT64
+unpack_BID128 (UINT64 * psign_x, int *pexponent_x,
+        UINT128 * pcoefficient_x, UINT128 * px) {
+  UINT128 coeff;
+  UINT64 ex;
+  *psign_x = (px->w[1]) & 0x8000000000000000ull;
+  ex = (px->w[1]) >> 49;
+  *pexponent_x = ((int) ex) & 0x3fff;
+  return coeff.w[0] | coeff.w[1];
+}
+
+static __inline UINT32
+get_BID32 (UINT32 sgn, int expon, UINT64 coeff, int rmode,
+    unsigned *fpsc) {
+  UINT32 r;
+
+  if (((unsigned) expon) > 191) {
+      r = sgn | 0x78000000ul;
+      switch (rmode) {
+      case 0x00002:
+        if (sgn)
+          r = sgn | 0x77f8967f;
+      }
+      return r;
+  }
+  r = expon;
+  return r;
+}
+
+UINT32
+bid128_to_bid32 (UINT128 x)
+{
+  UINT128 *px;
+  UINT128 CX;
+  UINT64 sign_x;
+  UINT32 res;
+  int exponent_x = 0;
+  px = &x;
+  if (!unpack_BID128 (&sign_x, &exponent_x, &CX, px)) {
+      return(res);
+  }
+  res = get_BID32 ((UINT32) (sign_x >> 32),
+        exponent_x, CX.w[0], _IDEC_glbround, &_IDEC_glbflags);
+  return(res);;
+}
+