Re: confusion about fma description in section 16.9 of gccint doc.

2012-05-14 Thread Kenneth Zadeck
committed in revision 187494. thanks. On 05/14/2012 08:05 PM, Ian Lance Taylor wrote: Kenneth Zadeck writes: Should i change the section 16.9 doc to indicate that this pattern is only to be used if the machine can do this with a single rounding? Sure. Ian

Re: confusion about fma description in section 16.9 of gccint doc.

2012-05-14 Thread Ian Lance Taylor
Kenneth Zadeck writes: > Should i change the section 16.9 doc to indicate that this pattern is > only to be used if the machine can do this with a single rounding? Sure. Ian

confusion about fma description in section 16.9 of gccint doc.

2012-05-14 Thread Kenneth Zadeck
Section 16.9 of the current gcc doc is as follows. It implies that the fma pattern should/could be used on a machine that double rounds the multiply add. `fmam4' Multiply operand 2 and operand 1, then add operand 3, storing the result in operand 0. All operands must have mode m. This pa