[Bug tree-optimization/96051] New: alloca(0) triggers TCO for VLA

2020-07-03 Thread fwd at quantentunnel dot de
Assignee: unassigned at gcc dot gnu.org Reporter: fwd at quantentunnel dot de Target Milestone: --- Created attachment 48831 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48831=edit TCO with alloca(0) I have written a function which is properly translated into t

[Bug c/78203] missing warning on return of unitialized variable

2016-11-05 Thread fwd at quantentunnel dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78203 --- Comment #2 from fwd --- (In reply to Richard Biener from comment #1) > There is a duplicate for this, we perform optimistic constant propagation > which > makes i == 1 and eliminates the conditional uninitialized use very early. Well, with

[Bug c/78203] New: missing warning on return of unitialized variable

2016-11-03 Thread fwd at quantentunnel dot de
Component: c Assignee: unassigned at gcc dot gnu.org Reporter: fwd at quantentunnel dot de Target Milestone: --- Compiling the following code with gcc version 4.9.2 only one warning about the use of uninitialized variables is issued. I expected a warning in func1 too. int func1