Re: [PATCH] Fix PR44214

2012-04-23 Thread Richard Guenther
On Fri, 20 Apr 2012, William J. Schmidt wrote: On Fri, 2012-04-20 at 11:32 -0700, H.J. Lu wrote: On Thu, Apr 19, 2012 at 6:58 PM, William J. Schmidt wschm...@linux.vnet.ibm.com wrote: This enhances constant folding for division by complex and vector constants. When -freciprocal-math

Re: [PATCH] Fix PR44214

2012-04-23 Thread William J. Schmidt
On Mon, 2012-04-23 at 11:09 +0200, Richard Guenther wrote: On Fri, 20 Apr 2012, William J. Schmidt wrote: On Fri, 2012-04-20 at 11:32 -0700, H.J. Lu wrote: On Thu, Apr 19, 2012 at 6:58 PM, William J. Schmidt wschm...@linux.vnet.ibm.com wrote: This enhances constant folding for

Re: [PATCH] Fix PR44214

2012-04-20 Thread Richard Guenther
On Thu, 19 Apr 2012, William J. Schmidt wrote: This enhances constant folding for division by complex and vector constants. When -freciprocal-math is present, such divisions are converted into multiplies by the constant reciprocal. When an exact reciprocal is available, this is done for

Re: [PATCH] Fix PR44214

2012-04-20 Thread William J. Schmidt
On Fri, 2012-04-20 at 10:04 +0200, Richard Guenther wrote: On Thu, 19 Apr 2012, William J. Schmidt wrote: This enhances constant folding for division by complex and vector constants. When -freciprocal-math is present, such divisions are converted into multiplies by the constant

Re: [PATCH] Fix PR44214

2012-04-20 Thread Richard Guenther
On Fri, 20 Apr 2012, William J. Schmidt wrote: On Fri, 2012-04-20 at 10:04 +0200, Richard Guenther wrote: On Thu, 19 Apr 2012, William J. Schmidt wrote: This enhances constant folding for division by complex and vector constants. When -freciprocal-math is present, such divisions are

Re: [PATCH] Fix PR44214

2012-04-20 Thread H.J. Lu
On Thu, Apr 19, 2012 at 6:58 PM, William J. Schmidt wschm...@linux.vnet.ibm.com wrote: This enhances constant folding for division by complex and vector constants.  When -freciprocal-math is present, such divisions are converted into multiplies by the constant reciprocal.  When an exact

Re: [PATCH] Fix PR44214

2012-04-20 Thread William J. Schmidt
On Fri, 2012-04-20 at 11:32 -0700, H.J. Lu wrote: On Thu, Apr 19, 2012 at 6:58 PM, William J. Schmidt wschm...@linux.vnet.ibm.com wrote: This enhances constant folding for division by complex and vector constants. When -freciprocal-math is present, such divisions are converted into

[PATCH] Fix PR44214

2012-04-19 Thread William J. Schmidt
This enhances constant folding for division by complex and vector constants. When -freciprocal-math is present, such divisions are converted into multiplies by the constant reciprocal. When an exact reciprocal is available, this is done for vector constants when optimizing. I did not implement