28557e8c98
For undefined lane indices, fill the mask with {0..N} instead of zeros to allow
further reduction to word/dword shuffle on the VM.
Reviewed By: tlively, penzn
Differential Revision: https://reviews.llvm.org/D133473
79 lines
3.1 KiB
LLVM
79 lines
3.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -verify-machineinstrs -mattr=+simd128 | FileCheck %s
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; Check that all varieties of vector concatenations get lowered to shuffles.
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target triple = "wasm32-unknown--wasm"
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define <16 x i8> @concat_v8i8(<8 x i8> %a, <8 x i8> %b) {
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; CHECK-LABEL: concat_v8i8:
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; CHECK: .functype concat_v8i8 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <8 x i8> %a, <8 x i8> %b, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
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ret <16 x i8> %v
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}
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define <8 x i8> @concat_v4i8(<4 x i8> %a, <4 x i8> %b) {
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; CHECK-LABEL: concat_v4i8:
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; CHECK: .functype concat_v4i8 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 2, 3, 16, 17, 18, 19, 0, 0, 0, 0, 0, 0, 0, 0
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <4 x i8> %a, <4 x i8> %b, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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ret <8 x i8> %v
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}
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define <8 x i16> @concat_v4i16(<4 x i16> %a, <4 x i16> %b) {
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; CHECK-LABEL: concat_v4i16:
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; CHECK: .functype concat_v4i16 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <4 x i16> %a, <4 x i16> %b, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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ret <8 x i16> %v
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}
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define <4 x i8> @concat_v2i8(<2 x i8> %a, <2 x i8> %b) {
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; CHECK-LABEL: concat_v2i8:
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; CHECK: .functype concat_v2i8 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 16, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x i8> %v
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}
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define <4 x i16> @concat_v2i16(<2 x i16> %a, <2 x i16> %b) {
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; CHECK-LABEL: concat_v2i16:
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; CHECK: .functype concat_v2i16 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 2, 3, 16, 17, 18, 19, 0, 1, 0, 1, 0, 1, 0, 1
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <2 x i16> %a, <2 x i16> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x i16> %v
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}
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define <4 x i32> @concat_v2i32(<2 x i32> %a, <2 x i32> %b) {
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; CHECK-LABEL: concat_v2i32:
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; CHECK: .functype concat_v2i32 (v128, v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <2 x i32> %a, <2 x i32> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x i32> %v
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}
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