2020-11-03 18:25:06 +08:00
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2 < %s 2>%t | FileCheck %s
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; RUN: FileCheck --check-prefix=WARN --allow-empty %s <%t
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; If this check fails please read test/CodeGen/AArch64/README for instructions on how to resolve it.
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; WARN-NOT: warning
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[AArch64][SVE] Add intrinsics for non-temporal gather-loads/scatter-stores
Summary:
This patch adds the following LLVM IR intrinsics for SVE:
1. non-temporal gather loads
* @llvm.aarch64.sve.ldnt1.gather
* @llvm.aarch64.sve.ldnt1.gather.uxtw
* @llvm.aarch64.sve.ldnt1.gather.scalar.offset
2. non-temporal scatter stores
* @llvm.aarch64.sve.stnt1.scatter
* @llvm.aarch64.sve.ldnt1.gather.uxtw
* @llvm.aarch64.sve.ldnt1.gather.scalar.offset
These intrinsic are mapped to the corresponding SVE instructions
(example for half-words, zero-extending):
* ldnt1h { z0.s }, p0/z, [z0.s, x0]
* stnt1h { z0.s }, p0/z, [z0.s, x0]
Note that for non-temporal gathers/scatters, the SVE spec defines only
one instruction type: "vector + scalar". For this reason, we swap the
arguments when processing intrinsics that implement the "scalar +
vector" addressing mode:
* @llvm.aarch64.sve.ldnt1.gather
* @llvm.aarch64.sve.ldnt1.gather.uxtw
* @llvm.aarch64.sve.stnt1.scatter
* @llvm.aarch64.sve.ldnt1.gather.uxtw
In other words, all intrinsics for gather-loads and scatter-stores
implemented in this patch are mapped to the same load and store
instruction, respectively.
The sve2_mem_gldnt_vs multiclass (and it's counterpart for scatter
stores) from SVEInstrFormats.td was split into:
* sve2_mem_gldnt_vec_vs_32_ptrs (32bit wide base addresses)
* sve2_mem_gldnt_vec_vs_62_ptrs (64bit wide base addresses)
This is consistent with what we did for
@llvm.aarch64.sve.ld1.scalar.offset and highlights the actual split in
the spec and the implementation.
Reviewed by: sdesmalen
Differential Revision: https://reviews.llvm.org/D74858
2020-02-19 20:25:30 +08:00
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;
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; LDNT1B, LDNT1W, LDNT1H, LDNT1D: base + 64-bit unscaled offsets
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; e.g. ldnt1h { z0.d }, p0/z, [z0.d, x0]
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;
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define <vscale x 2 x i64> @gldnt1b_d(<vscale x 2 x i1> %pg, i8* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1b_d:
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; CHECK: ldnt1b { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i8> @llvm.aarch64.sve.ldnt1.gather.nxv2i8(<vscale x 2 x i1> %pg,
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i8* %base,
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<vscale x 2 x i64> %b)
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%res = zext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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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> @gldnt1h_d(<vscale x 2 x i1> %pg, i16* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1h_d:
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; CHECK: ldnt1h { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i16> @llvm.aarch64.sve.ldnt1.gather.nxv2i16(<vscale x 2 x i1> %pg,
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i16* %base,
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<vscale x 2 x i64> %b)
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%res = zext <vscale x 2 x i16> %load to <vscale x 2 x i64>
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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> @gldnt1w_d(<vscale x 2 x i1> %pg, i32* %base, <vscale x 2 x i64> %offsets) {
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; CHECK-LABEL: gldnt1w_d:
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; CHECK: ldnt1w { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i32> @llvm.aarch64.sve.ldnt1.gather.nxv2i32(<vscale x 2 x i1> %pg,
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i32* %base,
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<vscale x 2 x i64> %offsets)
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%res = zext <vscale x 2 x i32> %load to <vscale x 2 x i64>
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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> @gldnt1d_d(<vscale x 2 x i1> %pg, i64* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1d_d:
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; CHECK: ldnt1d { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i64> @llvm.aarch64.sve.ldnt1.gather.nxv2i64(<vscale x 2 x i1> %pg,
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i64* %base,
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<vscale x 2 x i64> %b)
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ret <vscale x 2 x i64> %load
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}
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define <vscale x 2 x double> @gldnt1d_d_double(<vscale x 2 x i1> %pg, double* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1d_d_double:
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; CHECK: ldnt1d { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x double> @llvm.aarch64.sve.ldnt1.gather.nxv2f64(<vscale x 2 x i1> %pg,
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double* %base,
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<vscale x 2 x i64> %b)
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ret <vscale x 2 x double> %load
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}
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;
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; LDNT1SB, LDNT1SW, LDNT1SH: base + 64-bit unscaled offsets
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; e.g. ldnt1sh { z0.d }, p0/z, [z0.d, x0]
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;
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define <vscale x 2 x i64> @gldnt1sb_d(<vscale x 2 x i1> %pg, i8* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1sb_d:
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; CHECK: ldnt1sb { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i8> @llvm.aarch64.sve.ldnt1.gather.nxv2i8(<vscale x 2 x i1> %pg,
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i8* %base,
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<vscale x 2 x i64> %b)
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%res = sext <vscale x 2 x i8> %load to <vscale x 2 x i64>
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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> @gldnt1sh_d(<vscale x 2 x i1> %pg, i16* %base, <vscale x 2 x i64> %b) {
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; CHECK-LABEL: gldnt1sh_d:
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; CHECK: ldnt1sh { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i16> @llvm.aarch64.sve.ldnt1.gather.nxv2i16(<vscale x 2 x i1> %pg,
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i16* %base,
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<vscale x 2 x i64> %b)
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%res = sext <vscale x 2 x i16> %load to <vscale x 2 x i64>
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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> @gldnt1sw_d(<vscale x 2 x i1> %pg, i32* %base, <vscale x 2 x i64> %offsets) {
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; CHECK-LABEL: gldnt1sw_d:
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; CHECK: ldnt1sw { z0.d }, p0/z, [z0.d, x0]
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; CHECK-NEXT: ret
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%load = call <vscale x 2 x i32> @llvm.aarch64.sve.ldnt1.gather.nxv2i32(<vscale x 2 x i1> %pg,
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i32* %base,
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<vscale x 2 x i64> %offsets)
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%res = sext <vscale x 2 x i32> %load to <vscale x 2 x i64>
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ret <vscale x 2 x i64> %res
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}
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declare <vscale x 2 x i8> @llvm.aarch64.sve.ldnt1.gather.nxv2i8(<vscale x 2 x i1>, i8*, <vscale x 2 x i64>)
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declare <vscale x 2 x i16> @llvm.aarch64.sve.ldnt1.gather.nxv2i16(<vscale x 2 x i1>, i16*, <vscale x 2 x i64>)
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declare <vscale x 2 x i32> @llvm.aarch64.sve.ldnt1.gather.nxv2i32(<vscale x 2 x i1>, i32*, <vscale x 2 x i64>)
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declare <vscale x 2 x i64> @llvm.aarch64.sve.ldnt1.gather.nxv2i64(<vscale x 2 x i1>, i64*, <vscale x 2 x i64>)
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declare <vscale x 2 x double> @llvm.aarch64.sve.ldnt1.gather.nxv2f64(<vscale x 2 x i1>, double*, <vscale x 2 x i64>)
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