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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/sve-fixed-length-bitselect.ll
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derek.holloway 7502bf64a4
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41 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -aarch64-sve-vector-bits-min=256 < %s | FileCheck %s
target triple = "aarch64"
;
; NOTE: SVE lowering for the BSP pseudoinst is not currently implemented, so we
; don't currently expect the code below to lower to BSL/BIT/BIF. Once
; this is implemented, this test will be fleshed out.
;
define void @fixed_bitselect_v8i32(ptr %pre_cond_ptr, ptr %left_ptr, ptr %right_ptr, ptr %result_ptr) #0 {
; CHECK-LABEL: fixed_bitselect_v8i32:
; CHECK: // %bb.0:
; CHECK-NEXT: ptrue p0.s, vl8
; CHECK-NEXT: ld1w { z0.s }, p0/z, [x0]
; CHECK-NEXT: ld1w { z1.s }, p0/z, [x1]
; CHECK-NEXT: ld1w { z2.s }, p0/z, [x2]
; CHECK-NEXT: movprfx z3, z0
; CHECK-NEXT: subr z3.s, z3.s, #0 // =0x0
; CHECK-NEXT: sub z0.s, z0.s, #1 // =0x1
; CHECK-NEXT: and z1.d, z3.d, z1.d
; CHECK-NEXT: and z0.d, z0.d, z2.d
; CHECK-NEXT: orr z0.d, z0.d, z1.d
; CHECK-NEXT: st1w { z0.s }, p0, [x3]
; CHECK-NEXT: ret
%pre_cond = load <8 x i32>, ptr %pre_cond_ptr
%left = load <8 x i32>, ptr %left_ptr
%right = load <8 x i32>, ptr %right_ptr
%neg_cond = sub <8 x i32> zeroinitializer, %pre_cond
%min_cond = add <8 x i32> %pre_cond, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
%left_bits_0 = and <8 x i32> %neg_cond, %left
%right_bits_0 = and <8 x i32> %min_cond, %right
%bsl0000 = or <8 x i32> %right_bits_0, %left_bits_0
store <8 x i32> %bsl0000, ptr %result_ptr
ret void
}
attributes #0 = { "target-features"="+sve" }