derek.holloway
7502bf64a4
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207 lines
11 KiB
LLVM
207 lines
11 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s | FileCheck %s
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; Verify that DAG combine rules for LD1 + sext/zext don't apply when the
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; result of LD1 has multiple uses
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define <vscale x 2 x i64> @no_dag_combine_zext_sext(<vscale x 2 x i1> %pg,
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; CHECK-LABEL: no_dag_combine_zext_sext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ld1b { z1.d }, p0/z, [z0.d, #16]
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; CHECK-NEXT: movprfx z0, z1
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; CHECK-NEXT: and z0.d, z0.d, #0xff
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; CHECK-NEXT: st1b { z1.d }, p1, [x0]
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; CHECK-NEXT: ret
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<vscale x 2 x i64> %base,
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ptr %res_out,
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<vscale x 2 x i1> %pred) {
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%load = call <vscale x 2 x i8> @llvm.aarch64.sve.ld1.gather.scalar.offset.nxv2i8.nxv2i64(<vscale x 2 x i1> %pg,
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<vscale x 2 x i64> %base,
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i64 16)
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%res1 = zext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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%res2 = sext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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call void @llvm.masked.store.nxv2i8(<vscale x 2 x i8> %load,
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ptr %res_out,
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i32 8,
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<vscale x 2 x i1> %pred)
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ret <vscale x 2 x i64> %res1
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}
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define <vscale x 2 x i64> @no_dag_combine_sext(<vscale x 2 x i1> %pg,
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; CHECK-LABEL: no_dag_combine_sext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ld1b { z1.d }, p0/z, [z0.d, #16]
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; CHECK-NEXT: ptrue p0.d
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; CHECK-NEXT: movprfx z0, z1
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; CHECK-NEXT: sxtb z0.d, p0/m, z1.d
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; CHECK-NEXT: st1b { z1.d }, p1, [x0]
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; CHECK-NEXT: ret
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<vscale x 2 x i64> %base,
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ptr %res_out,
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<vscale x 2 x i1> %pred) {
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%load = call <vscale x 2 x i8> @llvm.aarch64.sve.ld1.gather.scalar.offset.nxv2i8.nxv2i64(<vscale x 2 x i1> %pg,
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<vscale x 2 x i64> %base,
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i64 16)
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%res = sext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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call void @llvm.masked.store.nxv2i8(<vscale x 2 x i8> %load,
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ptr %res_out,
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i32 8,
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<vscale x 2 x i1> %pred)
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ret <vscale x 2 x i64> %res
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}
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define <vscale x 2 x i64> @no_dag_combine_zext(<vscale x 2 x i1> %pg,
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; CHECK-LABEL: no_dag_combine_zext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ld1b { z1.d }, p0/z, [z0.d, #16]
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; CHECK-NEXT: movprfx z0, z1
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; CHECK-NEXT: and z0.d, z0.d, #0xff
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; CHECK-NEXT: st1b { z1.d }, p1, [x0]
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; CHECK-NEXT: ret
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<vscale x 2 x i64> %base,
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ptr %res_out,
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<vscale x 2 x i1> %pred) {
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%load = call <vscale x 2 x i8> @llvm.aarch64.sve.ld1.gather.scalar.offset.nxv2i8.nxv2i64(<vscale x 2 x i1> %pg,
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<vscale x 2 x i64> %base,
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i64 16)
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%res = zext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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call void @llvm.masked.store.nxv2i8(<vscale x 2 x i8> %load,
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ptr %res_out,
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i32 8,
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<vscale x 2 x i1> %pred)
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ret <vscale x 2 x i64> %res
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}
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define <vscale x 16 x i8> @narrow_i64_gather_index_i8_zext(ptr %out, ptr %in, <vscale x 16 x i8> %d, i64 %ptr){
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; CHECK-LABEL: narrow_i64_gather_index_i8_zext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s
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; CHECK-NEXT: add x8, x1, x2
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; CHECK-NEXT: ld1b { z0.s }, p0/z, [x8, #3, mul vl]
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; CHECK-NEXT: ld1b { z1.s }, p0/z, [x8, #2, mul vl]
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; CHECK-NEXT: ld1b { z2.s }, p0/z, [x1, x2]
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; CHECK-NEXT: ld1b { z3.s }, p0/z, [x8, #1, mul vl]
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; CHECK-NEXT: ld1b { z0.s }, p0/z, [x1, z0.s, uxtw]
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; CHECK-NEXT: ld1b { z1.s }, p0/z, [x1, z1.s, uxtw]
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; CHECK-NEXT: ld1b { z2.s }, p0/z, [x1, z2.s, uxtw]
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; CHECK-NEXT: ld1b { z3.s }, p0/z, [x1, z3.s, uxtw]
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; CHECK-NEXT: uzp1 z0.h, z1.h, z0.h
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; CHECK-NEXT: uzp1 z1.h, z2.h, z3.h
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; CHECK-NEXT: uzp1 z0.b, z1.b, z0.b
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i8, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 16 x i8>, ptr %2, align 1
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%3 = zext <vscale x 16 x i8> %wide.load to <vscale x 16 x i64>
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%4 = getelementptr inbounds i8, ptr %in, <vscale x 16 x i64> %3
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%wide.masked.gather = call <vscale x 16 x i8> @llvm.masked.gather.nxv16i8.nxv16p0(<vscale x 16 x ptr> %4, i32 1, <vscale x 16 x i1> splat (i1 true), <vscale x 16 x i8> poison)
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ret <vscale x 16 x i8> %wide.masked.gather
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}
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define <vscale x 16 x i8> @narrow_i64_gather_index_i8_sext(ptr %out, ptr %in, <vscale x 16 x i8> %d, i64 %ptr){
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; CHECK-LABEL: narrow_i64_gather_index_i8_sext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s
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; CHECK-NEXT: add x8, x1, x2
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; CHECK-NEXT: ld1sb { z0.s }, p0/z, [x8, #3, mul vl]
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; CHECK-NEXT: ld1sb { z1.s }, p0/z, [x8, #2, mul vl]
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; CHECK-NEXT: ld1sb { z2.s }, p0/z, [x1, x2]
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; CHECK-NEXT: ld1sb { z3.s }, p0/z, [x8, #1, mul vl]
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; CHECK-NEXT: ld1b { z0.s }, p0/z, [x1, z0.s, sxtw]
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; CHECK-NEXT: ld1b { z1.s }, p0/z, [x1, z1.s, sxtw]
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; CHECK-NEXT: ld1b { z2.s }, p0/z, [x1, z2.s, sxtw]
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; CHECK-NEXT: ld1b { z3.s }, p0/z, [x1, z3.s, sxtw]
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; CHECK-NEXT: uzp1 z0.h, z1.h, z0.h
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; CHECK-NEXT: uzp1 z1.h, z2.h, z3.h
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; CHECK-NEXT: uzp1 z0.b, z1.b, z0.b
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i8, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 16 x i8>, ptr %2, align 1
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%3 = sext <vscale x 16 x i8> %wide.load to <vscale x 16 x i64>
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%4 = getelementptr inbounds i8, ptr %in, <vscale x 16 x i64> %3
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%wide.masked.gather = call <vscale x 16 x i8> @llvm.masked.gather.nxv16i8.nxv16p0(<vscale x 16 x ptr> %4, i32 1, <vscale x 16 x i1> splat (i1 true), <vscale x 16 x i8> poison)
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ret <vscale x 16 x i8> %wide.masked.gather
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}
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define <vscale x 8 x i16> @narrow_i64_gather_index_i16_zext(ptr %out, ptr %in, <vscale x 8 x i16> %d, i64 %ptr){
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; CHECK-LABEL: narrow_i64_gather_index_i16_zext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s
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; CHECK-NEXT: add x8, x1, x2, lsl #1
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; CHECK-NEXT: ld1h { z0.s }, p0/z, [x1, x2, lsl #1]
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; CHECK-NEXT: ld1h { z1.s }, p0/z, [x8, #1, mul vl]
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; CHECK-NEXT: ld1h { z0.s }, p0/z, [x1, z0.s, uxtw #1]
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; CHECK-NEXT: ld1h { z1.s }, p0/z, [x1, z1.s, uxtw #1]
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; CHECK-NEXT: uzp1 z0.h, z0.h, z1.h
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i16, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 8 x i16>, ptr %2, align 1
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%3 = zext <vscale x 8 x i16> %wide.load to <vscale x 8 x i64>
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%4 = getelementptr inbounds i16, ptr %in, <vscale x 8 x i64> %3
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%wide.masked.gather = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0(<vscale x 8 x ptr> %4, i32 1, <vscale x 8 x i1> splat (i1 true), <vscale x 8 x i16> poison)
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ret <vscale x 8 x i16> %wide.masked.gather
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}
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define <vscale x 8 x i16> @narrow_i64_gather_index_i16_sext(ptr %out, ptr %in, <vscale x 8 x i16> %d, i64 %ptr){
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; CHECK-LABEL: narrow_i64_gather_index_i16_sext:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s
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; CHECK-NEXT: add x8, x1, x2, lsl #1
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; CHECK-NEXT: ld1sh { z0.s }, p0/z, [x1, x2, lsl #1]
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; CHECK-NEXT: ld1sh { z1.s }, p0/z, [x8, #1, mul vl]
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; CHECK-NEXT: ld1h { z0.s }, p0/z, [x1, z0.s, sxtw #1]
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; CHECK-NEXT: ld1h { z1.s }, p0/z, [x1, z1.s, sxtw #1]
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; CHECK-NEXT: uzp1 z0.h, z0.h, z1.h
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i16, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 8 x i16>, ptr %2, align 1
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%3 = sext <vscale x 8 x i16> %wide.load to <vscale x 8 x i64>
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%4 = getelementptr inbounds i16, ptr %in, <vscale x 8 x i64> %3
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%wide.masked.gather = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0(<vscale x 8 x ptr> %4, i32 1, <vscale x 8 x i1> splat (i1 true), <vscale x 8 x i16> poison)
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ret <vscale x 8 x i16> %wide.masked.gather
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}
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define <vscale x 4 x i32> @no_narrow_i64_gather_index_i32(ptr %out, ptr %in, <vscale x 4 x i32> %d, i64 %ptr){
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; CHECK-LABEL: no_narrow_i64_gather_index_i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s
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; CHECK-NEXT: ld1w { z0.s }, p0/z, [x1, x2, lsl #2]
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; CHECK-NEXT: ld1w { z0.s }, p0/z, [x1, z0.s, uxtw #2]
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i32, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 4 x i32>, ptr %2, align 1
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%3 = zext <vscale x 4 x i32> %wide.load to <vscale x 4 x i64>
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%4 = getelementptr inbounds i32, ptr %in, <vscale x 4 x i64> %3
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%wide.masked.gather = call <vscale x 4 x i32> @llvm.masked.gather.nxv4i32.nxv4p0(<vscale x 4 x ptr> %4, i32 1, <vscale x 4 x i1> splat (i1 true), <vscale x 4 x i32> poison)
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ret <vscale x 4 x i32> %wide.masked.gather
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}
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define <vscale x 2 x i64> @no_narrow_i64_gather_index_i64(ptr %out, ptr %in, <vscale x 2 x i64> %d, i64 %ptr){
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; CHECK-LABEL: no_narrow_i64_gather_index_i64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.d
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; CHECK-NEXT: ld1d { z0.d }, p0/z, [x1, x2, lsl #3]
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; CHECK-NEXT: ld1d { z0.d }, p0/z, [x1, z0.d, lsl #3]
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; CHECK-NEXT: ret
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%1 = getelementptr inbounds i64, ptr %in, i64 %ptr
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%2 = bitcast ptr %1 to ptr
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%wide.load = load <vscale x 2 x i64>, ptr %2, align 1
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%3 = getelementptr inbounds i64, ptr %in, <vscale x 2 x i64> %wide.load
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%wide.masked.gather = call <vscale x 2 x i64> @llvm.masked.gather.nxv2i64.nxv2p0(<vscale x 2 x ptr> %3, i32 1, <vscale x 2 x i1> splat (i1 true), <vscale x 2 x i64> poison)
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ret <vscale x 2 x i64> %wide.masked.gather
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}
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declare <vscale x 2 x i8> @llvm.aarch64.sve.ld1.gather.scalar.offset.nxv2i8.nxv2i64(<vscale x 2 x i1>, <vscale x 2 x i64>, i64)
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declare void @llvm.masked.store.nxv2i8(<vscale x 2 x i8>, ptr, i32, <vscale x 2 x i1>)
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declare <vscale x 16 x i8> @llvm.masked.gather.nxv16i8.nxv16p0(<vscale x 16 x ptr>, i32, <vscale x 16 x i1>, <vscale x 16 x i8>)
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declare <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0(<vscale x 8 x ptr>, i32, <vscale x 8 x i1>, <vscale x 8 x i16>)
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declare <vscale x 4 x i32> @llvm.masked.gather.nxv4i32.nxv4p0(<vscale x 4 x ptr>, i32, <vscale x 4 x i1>, <vscale x 4 x i32>)
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declare <vscale x 2 x i64> @llvm.masked.gather.nxv2i64.nxv2p0(<vscale x 2 x ptr>, i32, <vscale x 2 x i1>, <vscale x 2 x i64>)
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