[PATCH AArch64 2/2] Replace temporary inline assembler for vget_high

Alan Lawrence alan.lawrence@arm.com
Thu Sep 4 13:21:00 GMT 2014

Ah, right you are. (Curiously I still can't find Richard's previous message in 

for first patch, gcc/testsuite/ChangeLog:

         * gcc.target/aarch64/vget_high_1.c: New test.
         * gcc.target/aarch64/vget_low_1.c: Likewise.

for second patch, gcc/ChangeLog:

         * config/aarch64/arm_neon.h (__GET_HIGH): New macro.
         (vget_high_f32, vget_high_f64, vget_high_p8, vget_high_p16,
         vget_high_s8, vget_high_s16, vget_high_s32, vget_high_s64,
	vget_high_u8, vget_high_u16, vget_high_u32, vget_high_u64):
	Remove temporary __asm__ and reimplement.


Marcus Shawcroft wrote:
> On 12 August 2014 11:12, Alan Lawrence <alan.lawrence@arm.com> wrote:
>> This patch replaces the current inline assembler for the vget_high
>> intrinsics in arm_neon.h with a sequence of other calls, in a similar
>> fashion to vget_low. Unlike the assembler, these are all transparent to the
>> front-end, so should enable better optimization through the mid-end.
>> Tested check-gcc and check-g++ and aarch64-none-elf and aarch64_be-none-elf
>> (including new tests in previous patch!).
> I think we are still waiting on ChangeLogs for this and the related patch?
> /Marcus

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