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llvm-mirror/test/CodeGen/AArch64/arm64-dup.ll
Sander de Smalen 8a77617721 [AArch64][TableGen] Skip tied result operands for InstAlias 
Summary:
This patch fixes an issue so that the right alias is printed when the instruction has tied operands. It checks the number of operands in the resulting instruction as opposed to the alias, and then skips over tied operands that should not be printed in the alias.

This allows to generate the preferred assembly syntax for the AArch64 'ins' instruction, which should always be displayed as 'mov' according to the ARM Architecture Reference Manual. Several unit tests have changed as a result, but only to reflect the preferred disassembly. Some other InstAlias patterns (movk/bic/orr) needed a slight adjustment to stop them becoming the default and breaking other unit tests.

Please note that the patch is mostly the same as https://reviews.llvm.org/D29219 which was reverted because of an issue found when running TableGen with the Address Sanitizer. That issue has been addressed in this iteration of the patch.


Reviewers: rengolin, stoklund, huntergr, SjoerdMeijer, rovka

Reviewed By: rengolin, SjoerdMeijer

Subscribers: fhahn, aemerson, javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D40030

llvm-svn: 318650
2017-11-20 14:36:40 +00:00

361 lines
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LLVM
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; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple -asm-verbose=false | FileCheck %s
define <8 x i8> @v_dup8(i8 %A) nounwind {
;CHECK-LABEL: v_dup8:
;CHECK: dup.8b
%tmp1 = insertelement <8 x i8> zeroinitializer, i8 %A, i32 0
%tmp2 = insertelement <8 x i8> %tmp1, i8 %A, i32 1
%tmp3 = insertelement <8 x i8> %tmp2, i8 %A, i32 2
%tmp4 = insertelement <8 x i8> %tmp3, i8 %A, i32 3
%tmp5 = insertelement <8 x i8> %tmp4, i8 %A, i32 4
%tmp6 = insertelement <8 x i8> %tmp5, i8 %A, i32 5
%tmp7 = insertelement <8 x i8> %tmp6, i8 %A, i32 6
%tmp8 = insertelement <8 x i8> %tmp7, i8 %A, i32 7
ret <8 x i8> %tmp8
}
define <4 x i16> @v_dup16(i16 %A) nounwind {
;CHECK-LABEL: v_dup16:
;CHECK: dup.4h
%tmp1 = insertelement <4 x i16> zeroinitializer, i16 %A, i32 0
%tmp2 = insertelement <4 x i16> %tmp1, i16 %A, i32 1
%tmp3 = insertelement <4 x i16> %tmp2, i16 %A, i32 2
%tmp4 = insertelement <4 x i16> %tmp3, i16 %A, i32 3
ret <4 x i16> %tmp4
}
define <2 x i32> @v_dup32(i32 %A) nounwind {
;CHECK-LABEL: v_dup32:
;CHECK: dup.2s
%tmp1 = insertelement <2 x i32> zeroinitializer, i32 %A, i32 0
%tmp2 = insertelement <2 x i32> %tmp1, i32 %A, i32 1
ret <2 x i32> %tmp2
}
define <2 x float> @v_dupfloat(float %A) nounwind {
;CHECK-LABEL: v_dupfloat:
;CHECK: dup.2s
%tmp1 = insertelement <2 x float> zeroinitializer, float %A, i32 0
%tmp2 = insertelement <2 x float> %tmp1, float %A, i32 1
ret <2 x float> %tmp2
}
define <16 x i8> @v_dupQ8(i8 %A) nounwind {
;CHECK-LABEL: v_dupQ8:
;CHECK: dup.16b
%tmp1 = insertelement <16 x i8> zeroinitializer, i8 %A, i32 0
%tmp2 = insertelement <16 x i8> %tmp1, i8 %A, i32 1
%tmp3 = insertelement <16 x i8> %tmp2, i8 %A, i32 2
%tmp4 = insertelement <16 x i8> %tmp3, i8 %A, i32 3
%tmp5 = insertelement <16 x i8> %tmp4, i8 %A, i32 4
%tmp6 = insertelement <16 x i8> %tmp5, i8 %A, i32 5
%tmp7 = insertelement <16 x i8> %tmp6, i8 %A, i32 6
%tmp8 = insertelement <16 x i8> %tmp7, i8 %A, i32 7
%tmp9 = insertelement <16 x i8> %tmp8, i8 %A, i32 8
%tmp10 = insertelement <16 x i8> %tmp9, i8 %A, i32 9
%tmp11 = insertelement <16 x i8> %tmp10, i8 %A, i32 10
%tmp12 = insertelement <16 x i8> %tmp11, i8 %A, i32 11
%tmp13 = insertelement <16 x i8> %tmp12, i8 %A, i32 12
%tmp14 = insertelement <16 x i8> %tmp13, i8 %A, i32 13
%tmp15 = insertelement <16 x i8> %tmp14, i8 %A, i32 14
%tmp16 = insertelement <16 x i8> %tmp15, i8 %A, i32 15
ret <16 x i8> %tmp16
}
define <8 x i16> @v_dupQ16(i16 %A) nounwind {
;CHECK-LABEL: v_dupQ16:
;CHECK: dup.8h
%tmp1 = insertelement <8 x i16> zeroinitializer, i16 %A, i32 0
%tmp2 = insertelement <8 x i16> %tmp1, i16 %A, i32 1
%tmp3 = insertelement <8 x i16> %tmp2, i16 %A, i32 2
%tmp4 = insertelement <8 x i16> %tmp3, i16 %A, i32 3
%tmp5 = insertelement <8 x i16> %tmp4, i16 %A, i32 4
%tmp6 = insertelement <8 x i16> %tmp5, i16 %A, i32 5
%tmp7 = insertelement <8 x i16> %tmp6, i16 %A, i32 6
%tmp8 = insertelement <8 x i16> %tmp7, i16 %A, i32 7
ret <8 x i16> %tmp8
}
define <4 x i32> @v_dupQ32(i32 %A) nounwind {
;CHECK-LABEL: v_dupQ32:
;CHECK: dup.4s
%tmp1 = insertelement <4 x i32> zeroinitializer, i32 %A, i32 0
%tmp2 = insertelement <4 x i32> %tmp1, i32 %A, i32 1
%tmp3 = insertelement <4 x i32> %tmp2, i32 %A, i32 2
%tmp4 = insertelement <4 x i32> %tmp3, i32 %A, i32 3
ret <4 x i32> %tmp4
}
define <4 x float> @v_dupQfloat(float %A) nounwind {
;CHECK-LABEL: v_dupQfloat:
;CHECK: dup.4s
%tmp1 = insertelement <4 x float> zeroinitializer, float %A, i32 0
%tmp2 = insertelement <4 x float> %tmp1, float %A, i32 1
%tmp3 = insertelement <4 x float> %tmp2, float %A, i32 2
%tmp4 = insertelement <4 x float> %tmp3, float %A, i32 3
ret <4 x float> %tmp4
}
; Check to make sure it works with shuffles, too.
define <8 x i8> @v_shuffledup8(i8 %A) nounwind {
;CHECK-LABEL: v_shuffledup8:
;CHECK: dup.8b
%tmp1 = insertelement <8 x i8> undef, i8 %A, i32 0
%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> zeroinitializer
ret <8 x i8> %tmp2
}
define <4 x i16> @v_shuffledup16(i16 %A) nounwind {
;CHECK-LABEL: v_shuffledup16:
;CHECK: dup.4h
%tmp1 = insertelement <4 x i16> undef, i16 %A, i32 0
%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> zeroinitializer
ret <4 x i16> %tmp2
}
define <2 x i32> @v_shuffledup32(i32 %A) nounwind {
;CHECK-LABEL: v_shuffledup32:
;CHECK: dup.2s
%tmp1 = insertelement <2 x i32> undef, i32 %A, i32 0
%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> zeroinitializer
ret <2 x i32> %tmp2
}
define <2 x float> @v_shuffledupfloat(float %A) nounwind {
;CHECK-LABEL: v_shuffledupfloat:
;CHECK: dup.2s
%tmp1 = insertelement <2 x float> undef, float %A, i32 0
%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <2 x i32> zeroinitializer
ret <2 x float> %tmp2
}
define <16 x i8> @v_shuffledupQ8(i8 %A) nounwind {
;CHECK-LABEL: v_shuffledupQ8:
;CHECK: dup.16b
%tmp1 = insertelement <16 x i8> undef, i8 %A, i32 0
%tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <16 x i32> zeroinitializer
ret <16 x i8> %tmp2
}
define <8 x i16> @v_shuffledupQ16(i16 %A) nounwind {
;CHECK-LABEL: v_shuffledupQ16:
;CHECK: dup.8h
%tmp1 = insertelement <8 x i16> undef, i16 %A, i32 0
%tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <8 x i32> zeroinitializer
ret <8 x i16> %tmp2
}
define <4 x i32> @v_shuffledupQ32(i32 %A) nounwind {
;CHECK-LABEL: v_shuffledupQ32:
;CHECK: dup.4s
%tmp1 = insertelement <4 x i32> undef, i32 %A, i32 0
%tmp2 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <4 x i32> zeroinitializer
ret <4 x i32> %tmp2
}
define <4 x float> @v_shuffledupQfloat(float %A) nounwind {
;CHECK-LABEL: v_shuffledupQfloat:
;CHECK: dup.4s
%tmp1 = insertelement <4 x float> undef, float %A, i32 0
%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> zeroinitializer
ret <4 x float> %tmp2
}
define <8 x i8> @vduplane8(<8 x i8>* %A) nounwind {
;CHECK-LABEL: vduplane8:
;CHECK: dup.8b
%tmp1 = load <8 x i8>, <8 x i8>* %A
%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
ret <8 x i8> %tmp2
}
define <4 x i16> @vduplane16(<4 x i16>* %A) nounwind {
;CHECK-LABEL: vduplane16:
;CHECK: dup.4h
%tmp1 = load <4 x i16>, <4 x i16>* %A
%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
ret <4 x i16> %tmp2
}
define <2 x i32> @vduplane32(<2 x i32>* %A) nounwind {
;CHECK-LABEL: vduplane32:
;CHECK: dup.2s
%tmp1 = load <2 x i32>, <2 x i32>* %A
%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> < i32 1, i32 1 >
ret <2 x i32> %tmp2
}
define <2 x float> @vduplanefloat(<2 x float>* %A) nounwind {
;CHECK-LABEL: vduplanefloat:
;CHECK: dup.2s
%tmp1 = load <2 x float>, <2 x float>* %A
%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <2 x i32> < i32 1, i32 1 >
ret <2 x float> %tmp2
}
define <16 x i8> @vduplaneQ8(<8 x i8>* %A) nounwind {
;CHECK-LABEL: vduplaneQ8:
;CHECK: dup.16b
%tmp1 = load <8 x i8>, <8 x i8>* %A
%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <16 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
ret <16 x i8> %tmp2
}
define <8 x i16> @vduplaneQ16(<4 x i16>* %A) nounwind {
;CHECK-LABEL: vduplaneQ16:
;CHECK: dup.8h
%tmp1 = load <4 x i16>, <4 x i16>* %A
%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
ret <8 x i16> %tmp2
}
define <4 x i32> @vduplaneQ32(<2 x i32>* %A) nounwind {
;CHECK-LABEL: vduplaneQ32:
;CHECK: dup.4s
%tmp1 = load <2 x i32>, <2 x i32>* %A
%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
ret <4 x i32> %tmp2
}
define <4 x float> @vduplaneQfloat(<2 x float>* %A) nounwind {
;CHECK-LABEL: vduplaneQfloat:
;CHECK: dup.4s
%tmp1 = load <2 x float>, <2 x float>* %A
%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
ret <4 x float> %tmp2
}
define <2 x i64> @foo(<2 x i64> %arg0_int64x1_t) nounwind readnone {
;CHECK-LABEL: foo:
;CHECK: dup.2d
entry:
%0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 1, i32 1>
ret <2 x i64> %0
}
define <2 x i64> @bar(<2 x i64> %arg0_int64x1_t) nounwind readnone {
;CHECK-LABEL: bar:
;CHECK: dup.2d
entry:
%0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
ret <2 x i64> %0
}
define <2 x double> @baz(<2 x double> %arg0_int64x1_t) nounwind readnone {
;CHECK-LABEL: baz:
;CHECK: dup.2d
entry:
%0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 1, i32 1>
ret <2 x double> %0
}
define <2 x double> @qux(<2 x double> %arg0_int64x1_t) nounwind readnone {
;CHECK-LABEL: qux:
;CHECK: dup.2d
entry:
%0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 0, i32 0>
ret <2 x double> %0
}
define <2 x i32> @f(i32 %a, i32 %b) nounwind readnone {
; CHECK-LABEL: f:
; CHECK-NEXT: fmov s0, w0
; CHECK-NEXT: mov.s v0[1], w1
; CHECK-NEXT: ret
%vecinit = insertelement <2 x i32> undef, i32 %a, i32 0
%vecinit1 = insertelement <2 x i32> %vecinit, i32 %b, i32 1
ret <2 x i32> %vecinit1
}
define <4 x i32> @g(i32 %a, i32 %b) nounwind readnone {
; CHECK-LABEL: g:
; CHECK-NEXT: fmov s0, w0
; CHECK-NEXT: mov.s v0[1], w1
; CHECK-NEXT: mov.s v0[2], w1
; CHECK-NEXT: mov.s v0[3], w0
; CHECK-NEXT: ret
%vecinit = insertelement <4 x i32> undef, i32 %a, i32 0
%vecinit1 = insertelement <4 x i32> %vecinit, i32 %b, i32 1
%vecinit2 = insertelement <4 x i32> %vecinit1, i32 %b, i32 2
%vecinit3 = insertelement <4 x i32> %vecinit2, i32 %a, i32 3
ret <4 x i32> %vecinit3
}
define <2 x i64> @h(i64 %a, i64 %b) nounwind readnone {
; CHECK-LABEL: h:
; CHECK-NEXT: fmov d0, x0
; CHECK-NEXT: mov.d v0[1], x1
; CHECK-NEXT: ret
%vecinit = insertelement <2 x i64> undef, i64 %a, i32 0
%vecinit1 = insertelement <2 x i64> %vecinit, i64 %b, i32 1
ret <2 x i64> %vecinit1
}
; We used to spot this as a BUILD_VECTOR implementable by dup, but assume that
; the single value needed was of the same type as the vector. This is false if
; the scalar corresponding to the vector type is illegal (e.g. a <4 x i16>
; BUILD_VECTOR will have an i32 as its source). In that case, the operation is
; not a simple "dup vD.4h, vN.h[idx]" after all, and we crashed.
;
; *However*, it is a dup vD.4h, vN.h[2*idx].
define <4 x i16> @test_build_illegal(<4 x i32> %in) {
; CHECK-LABEL: test_build_illegal:
; CHECK: dup.4h v0, v0[6]
%val = extractelement <4 x i32> %in, i32 3
%smallval = trunc i32 %val to i16
%vec = insertelement <4x i16> undef, i16 %smallval, i32 3
ret <4 x i16> %vec
}
; We used to inherit an already extract_subvectored v4i16 from
; SelectionDAGBuilder here. We then added a DUPLANE on top of that, preventing
; the formation of an indexed-by-7 MLS.
define <4 x i16> @test_high_splat(<4 x i16> %a, <4 x i16> %b, <8 x i16> %v) #0 {
; CHECK-LABEL: test_high_splat:
; CHECK: mls.4h v0, v1, v2[7]
entry:
%shuffle = shufflevector <8 x i16> %v, <8 x i16> undef, <4 x i32> <i32 7, i32 7, i32 7, i32 7>
%mul = mul <4 x i16> %shuffle, %b
%sub = sub <4 x i16> %a, %mul
ret <4 x i16> %sub
}
; Also test the DUP path in the PerfectShuffle generator.
; CHECK-LABEL: test_perfectshuffle_dupext_v4i16:
; CHECK-NEXT: dup.4h v0, v0[0]
; CHECK-NEXT: ext.8b v0, v0, v1, #4
define <4 x i16> @test_perfectshuffle_dupext_v4i16(<4 x i16> %a, <4 x i16> %b) nounwind {
%r = shufflevector <4 x i16> %a, <4 x i16> %b, <4 x i32> <i32 0, i32 0, i32 4, i32 5>
ret <4 x i16> %r
}
; CHECK-LABEL: test_perfectshuffle_dupext_v4f16:
; CHECK-NEXT: dup.4h v0, v0[0]
; CHECK-NEXT: ext.8b v0, v0, v1, #4
; CHECK-NEXT: ret
define <4 x half> @test_perfectshuffle_dupext_v4f16(<4 x half> %a, <4 x half> %b) nounwind {
%r = shufflevector <4 x half> %a, <4 x half> %b, <4 x i32> <i32 0, i32 0, i32 4, i32 5>
ret <4 x half> %r
}
; CHECK-LABEL: test_perfectshuffle_dupext_v4i32:
; CHECK-NEXT: dup.4s v0, v0[0]
; CHECK-NEXT: ext.16b v0, v0, v1, #8
; CHECK-NEXT: ret
define <4 x i32> @test_perfectshuffle_dupext_v4i32(<4 x i32> %a, <4 x i32> %b) nounwind {
%r = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 0, i32 0, i32 4, i32 5>
ret <4 x i32> %r
}
; CHECK-LABEL: test_perfectshuffle_dupext_v4f32:
; CHECK-NEXT: dup.4s v0, v0[0]
; CHECK-NEXT: ext.16b v0, v0, v1, #8
; CHECK-NEXT: ret
define <4 x float> @test_perfectshuffle_dupext_v4f32(<4 x float> %a, <4 x float> %b) nounwind {
%r = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 0, i32 0, i32 4, i32 5>
ret <4 x float> %r
}
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