On 08/28/2018 11:53 PM, James Greenhalgh wrote:
On Wed, Aug 01, 2018 at 10:07:23AM -0500, Sam Tebbs wrote:
+   ones from the MSB.  */
+bool
+aarch64_is_left_consecutive (HOST_WIDE_INT i)
+{
+  return (i | (i - 1)) == HOST_WIDE_INT_M1;
exact_log2(-i) != HOST_WIDE_INT_M1?

I could change this but I'm not sure what benefit it would have over the original implementation. You're welcome to explain so as I could be missing something.

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