digitalmars.D.bugs - [Issue 21007] New: DMD generates unnecessary prolog/epilog for
- d-bugmail puremagic.com (26/26) Jul 01 2020 https://issues.dlang.org/show_bug.cgi?id=21007
https://issues.dlang.org/show_bug.cgi?id=21007 Issue ID: 21007 Summary: DMD generates unnecessary prolog/epilog for trivial functions Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: normal Priority: P1 Component: dmd Assignee: nobody puremagic.com Reporter: bugzilla digitalmars.com The code: int square(int num) { return num * num; } generates: push RBP mov RBP,RSP mov EAX,EDI imul EAX,EAX pop RBP ret while gdc and ldc do not generate the prolog/epilog. https://godbolt.org/z/A7EUu7 --
Jul 01 2020