Mercurial > hg > graal-compiler
diff src/os/linux/vm/os_linux.hpp @ 14436:b0133e4187d3
8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization.
Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected.
Reviewed-by: kvn
author | goetz |
---|---|
date | Thu, 21 Nov 2013 18:29:34 -0800 |
parents | 2e6938dd68f2 |
children | bb9356ec5967 833b0f92429a |
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--- a/src/os/linux/vm/os_linux.hpp Thu Nov 21 12:30:35 2013 -0800 +++ b/src/os/linux/vm/os_linux.hpp Thu Nov 21 18:29:34 2013 -0800 @@ -30,6 +30,9 @@ /* pthread_getattr_np comes with LinuxThreads-0.9-7 on RedHat 7.1 */ typedef int (*pthread_getattr_func_type) (pthread_t, pthread_attr_t *); +// Information about the protection of the page at address '0' on this os. +static bool zero_page_read_protected() { return true; } + class Linux { friend class os; friend class TestReserveMemorySpecial;