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[AArch64] Teach the AArch64 backend patterns to generate the RAX1 ins…
…truction. Differential Revision: https://reviews.llvm.org/D147887
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 | ||
; RUN: llc -mtriple=aarch64-none-eabi -mattr=+sha3 < %s | FileCheck --check-prefix=SHA3 %s | ||
; RUN: llc -mtriple=aarch64-none-eabi -mattr=-sha3 < %s | FileCheck --check-prefix=NOSHA3 %s | ||
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define <2 x i64> @rax1(<2 x i64> %x, <2 x i64> %y) { | ||
; SHA3-LABEL: rax1: | ||
; SHA3: // %bb.0: | ||
; SHA3-NEXT: rax1 v0.2d, v0.2d, v1.2d | ||
; SHA3-NEXT: ret | ||
; | ||
; NOSHA3-LABEL: rax1: | ||
; NOSHA3: // %bb.0: | ||
; NOSHA3-NEXT: ushr v2.2d, v1.2d, #63 | ||
; NOSHA3-NEXT: shl v1.2d, v1.2d, #1 | ||
; NOSHA3-NEXT: orr v1.16b, v1.16b, v2.16b | ||
; NOSHA3-NEXT: eor v0.16b, v0.16b, v1.16b | ||
; NOSHA3-NEXT: ret | ||
%a = call <2 x i64> @llvm.fshl.v2i64(<2 x i64> %y, <2 x i64> %y, <2 x i64> <i64 1, i64 1>) | ||
%b = xor <2 x i64> %x, %a | ||
ret <2 x i64> %b | ||
} | ||
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declare <2 x i64> @llvm.fshl.v2i64(<2 x i64>, <2 x i64>, <2 x i64>) |