Hi all, The vmovn_high* intrinsics are supposed to map to XTN2 instructions that narrow their source vector and instert it into the top half of the destination vector. This patch reimplements them away from inline assembly to an RTL builtin that performs a vec_concat with a truncate.
Bootstrapped and tested on aarch64-none-linux-gnu. Also tested
aarch64_be-none-elf.
Pushing to trunk.
Thanks,
Kyrill
gcc/
* config/aarch64/aarch64-simd.md (aarch64_xtn2<mode>_le): Define.
(aarch64_xtn2<mode>_be): Likewise.
(aarch64_xtn2<mode>): Likewise.
* config/aarch64/aarch64-simd-builtins.def (xtn2): Define builtins.
* config/aarch64/arm_neon.h (vmovn_high_s16): Reimplement using
builtins.
(vmovn_high_s32): Likewise.
(vmovn_high_s64): Likewise.
(vmovn_high_u16): Likewise.
(vmovn_high_u32): Likewise.
(vmovn_high_u64): Likewise.
gcc/testsuite/
* gcc.target/aarch64/narrow_high-intrinsics.c: Adjust
scan-assembler-times
for xtn2.
movn-hi.patch
Description: movn-hi.patch
