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clang-p2996/llvm/test/CodeGen/AArch64/avoid-pre-trunc.ll
Rin 0894c2ee5f [DAGCombiner] Avoid the pre-truncate of BUILD_VECTOR sources. (#75792) 
Avoid the pre-truncate of BUILD_VECTOR sources when there is more than
one use. This can avoid using unnecessary movs later down the
instruction selection pipeline.
2023-12-19 15:25:38 +00:00

190 lines
7.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: llc -mtriple=aarch64 < %s | FileCheck %s
define i32 @lower_lshr(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c, <4 x i32> %d, <4 x i32> %e, <4 x i32> %f, <4 x i32> %g, <4 x i32> %h) {
; CHECK-LABEL: lower_lshr:
; CHECK: // %bb.0:
; CHECK-NEXT: addv s0, v0.4s
; CHECK-NEXT: addv s1, v1.4s
; CHECK-NEXT: addv s4, v4.4s
; CHECK-NEXT: addv s5, v5.4s
; CHECK-NEXT: addv s2, v2.4s
; CHECK-NEXT: addv s6, v6.4s
; CHECK-NEXT: mov v0.s[1], v1.s[0]
; CHECK-NEXT: addv s1, v3.4s
; CHECK-NEXT: addv s3, v7.4s
; CHECK-NEXT: mov v4.s[1], v5.s[0]
; CHECK-NEXT: mov v0.s[2], v2.s[0]
; CHECK-NEXT: mov v4.s[2], v6.s[0]
; CHECK-NEXT: mov v0.s[3], v1.s[0]
; CHECK-NEXT: mov v4.s[3], v3.s[0]
; CHECK-NEXT: xtn v2.4h, v0.4s
; CHECK-NEXT: shrn v0.4h, v0.4s, #16
; CHECK-NEXT: xtn v1.4h, v4.4s
; CHECK-NEXT: shrn v3.4h, v4.4s, #16
; CHECK-NEXT: uhadd v0.4h, v2.4h, v0.4h
; CHECK-NEXT: uhadd v1.4h, v1.4h, v3.4h
; CHECK-NEXT: uaddl v0.4s, v0.4h, v1.4h
; CHECK-NEXT: addv s0, v0.4s
; CHECK-NEXT: fmov w0, s0
; CHECK-NEXT: ret
%l87 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %a)
%l174 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %b)
%l257 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %c)
%l340 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %d)
%l427 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %e)
%l514 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %f)
%l597 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %g)
%l680 = tail call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %h)
%l681 = insertelement <8 x i32> poison, i32 %l87, i32 0
%l682 = insertelement <8 x i32> %l681, i32 %l174, i32 1
%l683 = insertelement <8 x i32> %l682, i32 %l257, i32 2
%l684 = insertelement <8 x i32> %l683, i32 %l340, i32 3
%l685 = insertelement <8 x i32> %l684, i32 %l427, i32 4
%l686 = insertelement <8 x i32> %l685, i32 %l514, i32 5
%l687 = insertelement <8 x i32> %l686, i32 %l597, i32 6
%l688 = insertelement <8 x i32> %l687, i32 %l680, i32 7
%l689 = and <8 x i32> %l688, <i32 65535, i32 65535, i32 65535, i32 65535, i32 65535, i32 65535, i32 65535, i32 65535>
%l690 = lshr <8 x i32> %l688, <i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16, i32 16>
%l691 = add nuw nsw <8 x i32> %l689, %l690
%l692 = lshr <8 x i32> %l691, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
%l693 = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> %l692)
ret i32 %l693
}
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>)
declare i32 @llvm.vector.reduce.add.v8i32(<8 x i32>)
define <16 x i8> @lower_trunc_16xi8(i16 %a, i16 %b, i16 %c, i16 %d, i16 %e, i16 %f, i16 %g, i16 %h, i16 %i, i16 %j, i16 %k, i16 %l, i16 %m, i16 %n, i16 %o, i16 %p) {
; CHECK-LABEL: lower_trunc_16xi8:
; CHECK: // %bb.0:
; CHECK-NEXT: fmov s0, w0
; CHECK-NEXT: add x8, sp, #56
; CHECK-NEXT: ld1r { v1.8h }, [x8]
; CHECK-NEXT: mov v0.h[1], w1
; CHECK-NEXT: add v3.8h, v1.8h, v1.8h
; CHECK-NEXT: mov v0.h[2], w2
; CHECK-NEXT: mov v0.h[3], w3
; CHECK-NEXT: mov v0.h[4], w4
; CHECK-NEXT: mov v0.h[5], w5
; CHECK-NEXT: mov v0.h[6], w6
; CHECK-NEXT: add v2.8h, v0.8h, v0.8h
; CHECK-NEXT: uzp1 v0.16b, v0.16b, v1.16b
; CHECK-NEXT: uzp1 v1.16b, v2.16b, v3.16b
; CHECK-NEXT: eor v0.16b, v0.16b, v1.16b
; CHECK-NEXT: ret
%a1 = insertelement <16 x i16> poison, i16 %a, i16 0
%b1 = insertelement <16 x i16> %a1, i16 %b, i16 1
%c1 = insertelement <16 x i16> %b1, i16 %c, i16 2
%d1 = insertelement <16 x i16> %c1, i16 %d, i16 3
%e1 = insertelement <16 x i16> %d1, i16 %e, i16 4
%f1 = insertelement <16 x i16> %e1, i16 %f, i16 5
%g1 = insertelement <16 x i16> %f1, i16 %g, i16 6
%h1 = insertelement <16 x i16> %g1, i16 %h, i16 7
%i1 = insertelement <16 x i16> %f1, i16 %i, i16 8
%j1 = insertelement <16 x i16> %g1, i16 %j, i16 9
%k1 = insertelement <16 x i16> %f1, i16 %k, i16 10
%l1 = insertelement <16 x i16> %g1, i16 %l, i16 11
%m1 = insertelement <16 x i16> %f1, i16 %m, i16 12
%n1 = insertelement <16 x i16> %g1, i16 %n, i16 13
%o1 = insertelement <16 x i16> %f1, i16 %o, i16 14
%p1 = insertelement <16 x i16> %g1, i16 %p, i16 15
%t = trunc <16 x i16> %p1 to <16 x i8>
%s = add <16 x i16> %p1, %p1
%t2 = trunc <16 x i16> %s to <16 x i8>
%pro = xor <16 x i8> %t, %t2
ret <16 x i8> %pro
}
define <8 x i16> @lower_trunc_8xi16(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) {
; CHECK-LABEL: lower_trunc_8xi16:
; CHECK: // %bb.0:
; CHECK-NEXT: fmov s0, w4
; CHECK-NEXT: fmov s1, w0
; CHECK-NEXT: mov v0.s[1], w5
; CHECK-NEXT: mov v1.s[1], w1
; CHECK-NEXT: mov v0.s[2], w6
; CHECK-NEXT: mov v1.s[2], w2
; CHECK-NEXT: mov v0.s[3], w7
; CHECK-NEXT: mov v1.s[3], w3
; CHECK-NEXT: add v2.4s, v0.4s, v0.4s
; CHECK-NEXT: add v3.4s, v1.4s, v1.4s
; CHECK-NEXT: uzp1 v0.8h, v1.8h, v0.8h
; CHECK-NEXT: uzp1 v1.8h, v3.8h, v2.8h
; CHECK-NEXT: eor v0.16b, v0.16b, v1.16b
; CHECK-NEXT: ret
%a1 = insertelement <8 x i32> poison, i32 %a, i32 0
%b1 = insertelement <8 x i32> %a1, i32 %b, i32 1
%c1 = insertelement <8 x i32> %b1, i32 %c, i32 2
%d1 = insertelement <8 x i32> %c1, i32 %d, i32 3
%e1 = insertelement <8 x i32> %d1, i32 %e, i32 4
%f1 = insertelement <8 x i32> %e1, i32 %f, i32 5
%g1 = insertelement <8 x i32> %f1, i32 %g, i32 6
%h1 = insertelement <8 x i32> %g1, i32 %h, i32 7
%t = trunc <8 x i32> %h1 to <8 x i16>
%s = add <8 x i32> %h1, %h1
%t2 = trunc <8 x i32> %s to <8 x i16>
%o = xor <8 x i16> %t, %t2
ret <8 x i16> %o
}
define <4 x i32> @lower_trunc_4xi32(i64 %a, i64 %b, i64 %c, i64 %d) {
; CHECK-LABEL: lower_trunc_4xi32:
; CHECK: // %bb.0:
; CHECK-NEXT: fmov d0, x2
; CHECK-NEXT: fmov d1, x0
; CHECK-NEXT: mov v0.d[1], x3
; CHECK-NEXT: mov v1.d[1], x1
; CHECK-NEXT: add v2.2d, v0.2d, v0.2d
; CHECK-NEXT: add v3.2d, v1.2d, v1.2d
; CHECK-NEXT: uzp1 v0.4s, v1.4s, v0.4s
; CHECK-NEXT: uzp1 v1.4s, v3.4s, v2.4s
; CHECK-NEXT: eor v0.16b, v0.16b, v1.16b
; CHECK-NEXT: ret
%a1 = insertelement <4 x i64> poison, i64 %a, i64 0
%b1 = insertelement <4 x i64> %a1, i64 %b, i64 1
%c1 = insertelement <4 x i64> %b1, i64 %c, i64 2
%d1 = insertelement <4 x i64> %c1, i64 %d, i64 3
%t = trunc <4 x i64> %d1 to <4 x i32>
%s = add <4 x i64> %d1, %d1
%t2 = trunc <4 x i64> %s to <4 x i32>
%o = xor <4 x i32> %t, %t2
ret <4 x i32> %o
}
define <8 x i32> @lower_trunc_8xi32(i64 %a, i64 %b, i64 %c, i64 %d, i64 %e, i64 %f, i64 %g, i64 %h) {
; CHECK-LABEL: lower_trunc_8xi32:
; CHECK: // %bb.0:
; CHECK-NEXT: fmov d0, x2
; CHECK-NEXT: fmov d1, x0
; CHECK-NEXT: fmov d2, x6
; CHECK-NEXT: fmov d3, x4
; CHECK-NEXT: mov v0.d[1], x3
; CHECK-NEXT: mov v1.d[1], x1
; CHECK-NEXT: mov v2.d[1], x7
; CHECK-NEXT: mov v3.d[1], x5
; CHECK-NEXT: add v4.2d, v0.2d, v0.2d
; CHECK-NEXT: add v5.2d, v1.2d, v1.2d
; CHECK-NEXT: add v6.2d, v2.2d, v2.2d
; CHECK-NEXT: add v7.2d, v3.2d, v3.2d
; CHECK-NEXT: uzp1 v2.4s, v3.4s, v2.4s
; CHECK-NEXT: uzp1 v0.4s, v1.4s, v0.4s
; CHECK-NEXT: uzp1 v3.4s, v5.4s, v4.4s
; CHECK-NEXT: uzp1 v1.4s, v7.4s, v6.4s
; CHECK-NEXT: eor v0.16b, v0.16b, v3.16b
; CHECK-NEXT: eor v1.16b, v2.16b, v1.16b
; CHECK-NEXT: ret
%a1 = insertelement <8 x i64> poison, i64 %a, i64 0
%b1 = insertelement <8 x i64> %a1, i64 %b, i64 1
%c1 = insertelement <8 x i64> %b1, i64 %c, i64 2
%d1 = insertelement <8 x i64> %c1, i64 %d, i64 3
%e1 = insertelement <8 x i64> %d1, i64 %e, i64 4
%f1 = insertelement <8 x i64> %e1, i64 %f, i64 5
%g1 = insertelement <8 x i64> %f1, i64 %g, i64 6
%h1 = insertelement <8 x i64> %g1, i64 %h, i64 7
%t = trunc <8 x i64> %h1 to <8 x i32>
%s = add <8 x i64> %h1, %h1
%t2 = trunc <8 x i64> %s to <8 x i32>
%o = xor <8 x i32> %t, %t2
ret <8 x i32> %o
}
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