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, 47 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr44784.c b/gcc/testsuite/gcc.c-torture/compile/pr44784.c
new file mode 100644
index 000000000..54d531a3d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr44784.c
@@ -0,0 +1,47 @@
+typedef struct rtx_def *rtx;
+enum rtx_code { SUBREG };
+typedef union rtunion_def {
+    long rtint;
+    unsigned long rtuint;
+    rtx rtx;
+} rtunion;
+struct rtx_def {
+    enum rtx_code code: 8;
+    rtunion fld[1];
+};
+typedef struct simple_bitmap_def {
+    unsigned long long elms[1];
+} *sbitmap;
+struct df_link {
+    struct df_link *next;
+    rtx reg;
+};
+typedef enum { UNDEFINED,   CONSTANT,   VARYING } latticevalue;
+typedef struct {
+    latticevalue lattice_val;
+} value;
+static value *values;
+static sbitmap ssa_edges;
+void defs_to_varying (struct df_link *start)
+{
+  struct df_link *currdef;
+  for (currdef = start;
+       currdef;
+       currdef = currdef->next)
+    {
+      rtx reg = currdef->reg;
+      if (values[(reg->code == SUBREG
+		  ? reg->fld[0].rtx
+		  : reg)->fld[0].rtuint].lattice_val != VARYING)
+	ssa_edges->elms [(reg->code == SUBREG
+			  ? reg->fld[0].rtx
+			  : reg)->fld[0].rtuint / 64]
+	    |= ((unsigned long long) 1
+		<< (reg->code == SUBREG
+		    ? reg->fld[0].rtx
+		    : reg)->fld[0].rtuint % 64);
+      values[(reg->code == SUBREG
+	      ? reg->fld[0].rtx
+	      : reg)->fld[0].rtuint].lattice_val = VARYING;
+    }
+}