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[PATCH] Fix forwprop pattern (T)(P + A) - (T)P -> (T)A, Part 2


Hi,

this is part 2 of my patch, which uses the undefined behaviour, and emits a strict overflow warning.
This fixes gnat.dg/opt37.adb again.

The diff is relative to part 1: https://gcc.gnu.org/ml/gcc-patches/2014-06/msg01891.html


Boot-strapped and regression-tested on x86_64-linux-gnu.

OK for trunk?


Thanks
Bernd.
 		 	   		  

Attachment: changelog-forwprop2.txt
Description: Text document

Attachment: patch-forwprop2.diff
Description: Binary data


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