[Bug middle-end/91687] Fused multiply subtract not generated when same operand appears in multiplication and subtraction.

2019-09-06 Thread barnaby.wilks at arm dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91687 --- Comment #1 from barnaby.wilks at arm dot com --- (In reply to barnaby.wilks from comment #0) > Some architectures have instructions that allow the expressions of the form > "(x * y) - z" to be done in one instruction (for ex

[Bug middle-end/91687] New: Fused multiply subtract not generated when same operand appears in multiplication and subtraction.

2019-09-06 Thread barnaby.wilks at arm dot com
Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: barnaby.wilks at arm dot com Target Milestone: --- Some architectures have instructions that allow the expressions of the form "(x * y) - z&q