RFR(S): 8172145: C2: anti dependence missed because store hidden by membar
aph at redhat.com
Fri Dec 30 15:34:26 UTC 2016
On 30/12/16 13:29, Doerr, Martin wrote:
> we found a C2 Compiler bug which leads to incorrect reordering of
> memory accesses on PPC64 due to missing anti-dependency. Details are
> described here: https://bugs.openjdk.java.net/browse/JDK-8172145
Another missing anti-dependency!
> The issue can be fixed by this webrev:
Wouldn't it make more sense to calculate is_Mach_MemBarVolatile lazily?
More information about the hotspot-compiler-dev