On Sun, Apr 28, 2024 at 11:11 AM Roger Sayle wrote:
>
>
> This patch fixes PR tree-optimization/113673, a P2 ice-on-valid regression
> caused by load merging of (ptr[0]<<8)+ptr[1] when -ftrapv has been
> specified. When the operator is | or ^ this is safe, but for addition
> of signed integer
This patch fixes PR tree-optimization/113673, a P2 ice-on-valid regression
caused by load merging of (ptr[0]<<8)+ptr[1] when -ftrapv has been
specified. When the operator is | or ^ this is safe, but for addition
of signed integer types, a trap may be generated/required, so merging this
idiom
