AcoSail/kernel_optimize_test
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Ingo Molnar 9ab34fe761 [PATCH] enable unit-at-a-time optimisations for gcc4 
Allow gcc4 compilers to optimize unit-at-a-time.

This flag enables gcc to "see" the entire C file before making optimisation
decisions such as inline, which results in gcc making better decisions.  One
of the immediate effects of this is that static functions that are used only
once now get inlined.

gcc 3.4 has this flag as well, however gcc 3.x have a problem with inlining
and stacks and as a result, enabling this flag there would cause excessive and
unacceptable stack use.  This problem is fixed in the gcc 4.x series.  The
x86-64 architecture already enables this feature so it's well tested already.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 18:27:15 -08:00
..
alpha [PATCH] alpha: task_pt_regs() 2006-01-12 09:08:50 -08:00
arm Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/spi-2.6 2006-01-14 10:43:26 -08:00
arm26 [PATCH] arm26: task_stack_page() 2006-01-12 09:08:57 -08:00
cris [PATCH] cris: task_thread_info() 2006-01-12 09:08:58 -08:00
frv [PATCH] frv: task_thread_info(), task_stack_page() 2006-01-12 09:08:54 -08:00
h8300 [PATCH] h8300: task_stack_page() 2006-01-12 09:08:55 -08:00
i386 [PATCH] enable unit-at-a-time optimisations for gcc4 2006-01-14 18:27:15 -08:00
ia64 [PATCH] Altix: ioc3 serial support 2006-01-14 18:25:20 -08:00
m32r [PATCH] m32r: task_pt_regs(), task_stack_page(), task_thread_info() 2006-01-12 09:08:54 -08:00
m68k [PATCH] m68k: console code in head.S needs framebuffer support built in 2006-01-12 09:09:06 -08:00
m68knommu [PATCH] m68knommu: task_stack_page() 2006-01-12 09:08:55 -08:00
mips [PATCH] mips: task_stack_page() 2006-01-12 09:08:59 -08:00
parisc [PATCH] Add parisc_bus_type probe and remove methods 2006-01-13 11:26:06 -08:00
powerpc Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2006-01-14 10:42:40 -08:00
ppc Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2006-01-14 10:42:40 -08:00
s390 [PATCH] s390: cputime misaccounting 2006-01-14 18:27:09 -08:00
sh [PATCH] Add sh_bus_type probe and remove methods 2006-01-13 11:26:06 -08:00
sh64 [PATCH] sh64: task_stack_page() 2006-01-12 09:08:57 -08:00
sparc [PATCH] sparc: task_stack_page() 2006-01-12 09:08:53 -08:00
sparc64 [PATCH] sparc64: task_pt_regs() 2006-01-12 09:08:52 -08:00
um [PATCH] uml: fix symbol for mktime 2006-01-14 18:27:06 -08:00
v850 [PATCH] v850: task_stack_page(), task_pt_regs() 2006-01-12 09:08:54 -08:00
x86_64 [PATCH] amd64: task_stack_page() 2006-01-12 09:08:51 -08:00
xtensa [PATCH] xtensa: task_pt_regs(), task_stack_page() 2006-01-12 09:08:54 -08:00