[Bug middle-end/82742] [8 Regression] ICE on valid code at -O3: verify_flow_info failed

2017-10-27 Thread marxin at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82742 Martin Liška changed: What|Removed |Added Keywords||ice-on-valid-code

[Bug tree-optimization/57359] wrong code for union access at -O3 on x86_64-linux

2017-10-27 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57359 Richard Biener changed: What|Removed |Added CC||hstong at ca dot ibm.com --- Comment

[Bug tree-optimization/57359] wrong code for union access at -O3 on x86_64-linux

2017-10-27 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57359 --- Comment #14 from Richard Biener --- Testcase from PR81028 extern void abort(); typedef int A; typedef float B; void __attribute__((noinline,noclone)) foo(A *p, B *q, long unk) { for (long i = 0; i < unk; ++i) { *p = 1; q[i]

[Bug tree-optimization/81028] GCC miscompiles placement new

2017-10-27 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81028 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug libstdc++/81797] gcc 7.1.0 fails to build on macOS 10.13 (High Sierra):

2017-10-27 Thread chrisj at rtems dot org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797 --- Comment #45 from Chris Johns --- This simple hack as a test works for me with `-j 8` on an i7 without .NOTPARALLEL: --- gcc-7.2.0/libstdc++-v3/include/Makefile.am.orig 2017-10-27 15:30:16.0 +1100 +++

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