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llvm-mirror/test/CodeGen/ARM/vdup.ll
Ahmed Bougacha cbe6455bea [ARM] Don't abort on variable-idx extractelt in ReconstructShuffle. 
The code introduced in r244314 assumed that EXTRACT_VECTOR_ELT only
takes constant indices, but it does accept variables.
Bail out for those: we can't use them, as the shuffles we want to
reconstruct do require constant masks.

llvm-svn: 246594
2015-09-01 21:56:00 +00:00

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; RUN: llc -mtriple=arm-eabi -float-abi=soft -mattr=+neon -verify-machineinstrs %s -o - \
; RUN: | FileCheck %s
define <8 x i8> @v_dup8(i8 %A) nounwind {
;CHECK-LABEL: v_dup8:
;CHECK: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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: vdup.8
%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: vdup.16
%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: vdup.32
%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: vdup.32
%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 {
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 {
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 {
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 {
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
}
; Radar 7373643
;CHECK-LABEL: redundantVdup:
;CHECK: vmov.i8
;CHECK-NOT: vdup.8
;CHECK: vstr
define void @redundantVdup(<8 x i8>* %ptr) nounwind {
%1 = insertelement <8 x i8> undef, i8 -128, i32 0
%2 = shufflevector <8 x i8> %1, <8 x i8> undef, <8 x i32> zeroinitializer
store <8 x i8> %2, <8 x i8>* %ptr, align 8
ret void
}
define <4 x i32> @tdupi(i32 %x, i32 %y) {
;CHECK-LABEL: tdupi:
;CHECK: vdup.32
%1 = insertelement <4 x i32> undef, i32 %x, i32 0
%2 = insertelement <4 x i32> %1, i32 %x, i32 1
%3 = insertelement <4 x i32> %2, i32 %x, i32 2
%4 = insertelement <4 x i32> %3, i32 %y, i32 3
ret <4 x i32> %4
}
define <4 x float> @tdupf(float %x, float %y) {
;CHECK-LABEL: tdupf:
;CHECK: vdup.32
%1 = insertelement <4 x float> undef, float %x, i32 0
%2 = insertelement <4 x float> %1, float %x, i32 1
%3 = insertelement <4 x float> %2, float %x, i32 2
%4 = insertelement <4 x float> %3, float %y, i32 3
ret <4 x float> %4
}
; This test checks that when splatting an element from a vector into another,
; the value isn't moved out to GPRs first.
define <4 x i32> @tduplane(<4 x i32> %invec) {
;CHECK-LABEL: tduplane:
;CHECK-NOT: vmov {{.*}}, d16[1]
;CHECK: vdup.32 {{.*}}, d16[1]
%in = extractelement <4 x i32> %invec, i32 1
%1 = insertelement <4 x i32> undef, i32 %in, i32 0
%2 = insertelement <4 x i32> %1, i32 %in, i32 1
%3 = insertelement <4 x i32> %2, i32 %in, i32 2
%4 = insertelement <4 x i32> %3, i32 255, i32 3
ret <4 x i32> %4
}
define <2 x float> @check_f32(<4 x float> %v) nounwind {
;CHECK-LABEL: check_f32:
;CHECK: vdup.32 {{.*}}, d{{..}}[1]
%x = extractelement <4 x float> %v, i32 3
%1 = insertelement <2 x float> undef, float %x, i32 0
%2 = insertelement <2 x float> %1, float %x, i32 1
ret <2 x float> %2
}
define <2 x i32> @check_i32(<4 x i32> %v) nounwind {
;CHECK-LABEL: check_i32:
;CHECK: vdup.32 {{.*}}, d{{..}}[1]
%x = extractelement <4 x i32> %v, i32 3
%1 = insertelement <2 x i32> undef, i32 %x, i32 0
%2 = insertelement <2 x i32> %1, i32 %x, i32 1
ret <2 x i32> %2
}
define <4 x i16> @check_i16(<8 x i16> %v) nounwind {
;CHECK-LABEL: check_i16:
;CHECK: vdup.16 {{.*}}, d{{..}}[3]
%x = extractelement <8 x i16> %v, i32 3
%1 = insertelement <4 x i16> undef, i16 %x, i32 0
%2 = insertelement <4 x i16> %1, i16 %x, i32 1
ret <4 x i16> %2
}
define <8 x i8> @check_i8(<16 x i8> %v) nounwind {
;CHECK-LABEL: check_i8:
;CHECK: vdup.8 {{.*}}, d{{..}}[3]
%x = extractelement <16 x i8> %v, i32 3
%1 = insertelement <8 x i8> undef, i8 %x, i32 0
%2 = insertelement <8 x i8> %1, i8 %x, i32 1
ret <8 x i8> %2
}
; Check that an SPR splat produces a vdup.
define <2 x float> @check_spr_splat2(<2 x float> %p, i16 %q) {
;CHECK-LABEL: check_spr_splat2:
;CHECK: vdup.32 d
%conv = sitofp i16 %q to float
%splat.splatinsert = insertelement <2 x float> undef, float %conv, i32 0
%splat.splat = shufflevector <2 x float> %splat.splatinsert, <2 x float> undef, <2 x i32> zeroinitializer
%sub = fsub <2 x float> %splat.splat, %p
ret <2 x float> %sub
}
define <4 x float> @check_spr_splat4(<4 x float> %p, i16 %q) {
;CHECK-LABEL: check_spr_splat4:
;CHECK: vld1.16
%conv = sitofp i16 %q to float
%splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 0
%splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
%sub = fsub <4 x float> %splat.splat, %p
ret <4 x float> %sub
}
; Same codegen as above test; scalar is splatted using vld1, so shuffle index is irrelevant.
define <4 x float> @check_spr_splat4_lane1(<4 x float> %p, i16 %q) {
;CHECK-LABEL: check_spr_splat4_lane1:
;CHECK: vld1.16
%conv = sitofp i16 %q to float
%splat.splatinsert = insertelement <4 x float> undef, float %conv, i32 1
%splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
%sub = fsub <4 x float> %splat.splat, %p
ret <4 x float> %sub
}
; Also make sure we don't barf on variable-index extractelts, where we almost
; could have generated a vdup.
define <8 x i8> @check_i8_varidx(<16 x i8> %v, i32 %idx) {
; CHECK-LABEL: check_i8_varidx:
; CHECK: mov r[[FP:[0-9]+]], sp
; CHECK: ldr r[[IDX:[0-9]+]], [r[[FP]], #4]
; CHECK: mov r[[SPCOPY:[0-9]+]], sp
; CHECK: vst1.64 {d{{.*}}, d{{.*}}}, [r[[SPCOPY]]:128], r[[IDX]]
; CHECK: vld1.8 {d{{.*}}[]}, [r[[SPCOPY]]]
%x = extractelement <16 x i8> %v, i32 %idx
%1 = insertelement <8 x i8> undef, i8 %x, i32 0
%2 = insertelement <8 x i8> %1, i8 %x, i32 1
ret <8 x i8> %2
}
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