[Bug middle-end/90435] gcc generate infinite loop code when using -O2 or -O3

2019-05-12 Thread pangqingyuan1991 at 163 dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90435 庞庆源 changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug middle-end/90435] gcc generate infinite loop code when using -O2 or -O3

2019-05-12 Thread pangqingyuan1991 at 163 dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90435 --- Comment #4 from 庞庆源 --- (In reply to Marc Glisse from comment #3) > (In reply to 庞庆源 from comment #2) > > gcc pmalloc.c -O2 -o ppp -ldl -fno-tree-loop-distribute-patterns > > -fno-strict-aliasing > > Still not work. > > -fno-builtin (the

[Bug middle-end/90435] gcc generate infinite loop code when using -O2 or -O3

2019-05-11 Thread pangqingyuan1991 at 163 dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90435 --- Comment #2 from 庞庆源 --- gcc pmalloc.c -O2 -o ppp -ldl -fno-tree-loop-distribute-patterns -fno-strict-aliasing Still not work. Why I don't see stack overflow if this will trigger function loop calling

[Bug c/90435] New: gcc generate infinite loop code when using -O2 or -O3

2019-05-11 Thread pangqingyuan1991 at 163 dot com
Component: c Assignee: unassigned at gcc dot gnu.org Reporter: pangqingyuan1991 at 163 dot com Target Milestone: --- Created attachment 46342 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46342=edit source code I am writing a simple memory allocator now. When I comp