D.gnu - [Bug 141] New: Signed integer overflow handled incorrectly
- via D.gnu (36/36) Jul 17 2014 Date: Thu, 17 Jul 2014 12:55:13 +0100
Date: Thu, 17 Jul 2014 12:55:13 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" http://bugzilla.gdcproject.org/show_bug.cgi?id=141 Bug ID: 141 Summary: Signed integer overflow handled incorrectly Product: GDC Version: 4.9.x Hardware: All OS: All Status: NEW Severity: critical Priority: Normal Component: gdc Assignee: ibuclaw gdcproject.org Reporter: code klickverbot.at This --- bool foo(int a) { return a > (a + 1); } --- produces --- _D4test3fooFiZb: xorl %eax, %eax ret --- using the GDC 4.9.0 from the Arch Linux repositories. However, the spec (http://dlang.org/expression.html) says: "If both operands are of integral types and an overflow or underflow occurs in the computation, wrapping will happen." There is no mention that this does not apply to signed integral types as well. -- You are receiving this mail because: You are watching all bug changes.
Jul 17 2014