Re: [wide-int 4/5] Fix canonize handling of "small_prec" case

[Kenneth Zadeck]

this is fine.

kenny
On 04/25/2014 09:44 AM, Richard Sandiford wrote:

We should write back the sign-extended value.

Tested on x86_64-linux-gnu.  OK to install?

Thanks,
Richard


Index: gcc/wide-int.cc
===================================================================
--- gcc/wide-int.cc     2014-04-25 09:15:14.297359380 +0100
+++ gcc/wide-int.cc     2014-04-25 09:15:50.755637670 +0100
@@ -81,7 +81,7 @@ canonize (HOST_WIDE_INT *val, unsigned i

top = val[len - 1];

    if (len * HOST_BITS_PER_WIDE_INT > precision)
-    top = sext_hwi (top, precision % HOST_BITS_PER_WIDE_INT);
+    val[len - 1] = top = sext_hwi (top, precision % HOST_BITS_PER_WIDE_INT);
    if (top != 0 && top != (HOST_WIDE_INT)-1)
      return len;