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clang-p2996/llvm/test/Transforms/InstCombine/insert-extract-shuffle.ll
Piotr Sobczak 03961709ed [InstCombine] Extend pattern to replace shuffle's insertelement operand 
In D71220 a pattern was added to replace shuffle's insertelement operand
if inserted scalar is not demanded. The pattern was added only for
the case where the shuffle's mask size is equal to element's vector size.
However, that condition is not required because the pattern does not
change the shuffle vector size.

This patch extends the pattern to also include cases where shuffle's mask
size is not equal to element's vector size.

Differential Revision: https://reviews.llvm.org/D112318
2021-11-03 09:43:04 +01:00

792 lines
37 KiB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -instcombine %s | FileCheck %s
define <1 x i8> @test1(<8 x i8> %in) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[VEC:%.*]] = shufflevector <8 x i8> [[IN:%.*]], <8 x i8> undef, <1 x i32> <i32 5>
; CHECK-NEXT: ret <1 x i8> [[VEC]]
;
%val = extractelement <8 x i8> %in, i32 5
%vec = insertelement <1 x i8> undef, i8 %val, i32 0
ret <1 x i8> %vec
}
define <4 x i16> @test2(<8 x i16> %in, <8 x i16> %in2) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[VEC_3:%.*]] = shufflevector <8 x i16> [[IN2:%.*]], <8 x i16> [[IN:%.*]], <4 x i32> <i32 11, i32 9, i32 0, i32 10>
; CHECK-NEXT: ret <4 x i16> [[VEC_3]]
;
%elt0 = extractelement <8 x i16> %in, i32 3
%elt1 = extractelement <8 x i16> %in, i32 1
%elt2 = extractelement <8 x i16> %in2, i32 0
%elt3 = extractelement <8 x i16> %in, i32 2
%vec.0 = insertelement <4 x i16> undef, i16 %elt0, i32 0
%vec.1 = insertelement <4 x i16> %vec.0, i16 %elt1, i32 1
%vec.2 = insertelement <4 x i16> %vec.1, i16 %elt2, i32 2
%vec.3 = insertelement <4 x i16> %vec.2, i16 %elt3, i32 3
ret <4 x i16> %vec.3
}
define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) {
; CHECK-LABEL: @test_vcopyq_lane_p64(
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <1 x i64> [[B:%.*]], <1 x i64> poison, <2 x i32> <i32 0, i32 undef>
; CHECK-NEXT: [[RES:%.*]] = shufflevector <2 x i64> [[A:%.*]], <2 x i64> [[TMP1]], <2 x i32> <i32 0, i32 2>
; CHECK-NEXT: ret <2 x i64> [[RES]]
;
%elt = extractelement <1 x i64> %b, i32 0
%res = insertelement <2 x i64> %a, i64 %elt, i32 1
ret <2 x i64> %res
}
; PR2109: https://llvm.org/bugs/show_bug.cgi?id=2109
define <4 x float> @widen_extract2(<4 x float> %ins, <2 x float> %ext) {
; CHECK-LABEL: @widen_extract2(
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[EXT:%.*]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; CHECK-NEXT: [[I2:%.*]] = shufflevector <4 x float> [[INS:%.*]], <4 x float> [[TMP1]], <4 x i32> <i32 0, i32 4, i32 2, i32 5>
; CHECK-NEXT: ret <4 x float> [[I2]]
;
%e1 = extractelement <2 x float> %ext, i32 0
%e2 = extractelement <2 x float> %ext, i32 1
%i1 = insertelement <4 x float> %ins, float %e1, i32 1
%i2 = insertelement <4 x float> %i1, float %e2, i32 3
ret <4 x float> %i2
}
define <4 x float> @widen_extract3(<4 x float> %ins, <3 x float> %ext) {
; CHECK-LABEL: @widen_extract3(
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <3 x float> [[EXT:%.*]], <3 x float> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
; CHECK-NEXT: [[I3:%.*]] = shufflevector <4 x float> [[INS:%.*]], <4 x float> [[TMP1]], <4 x i32> <i32 6, i32 5, i32 4, i32 3>
; CHECK-NEXT: ret <4 x float> [[I3]]
;
%e1 = extractelement <3 x float> %ext, i32 0
%e2 = extractelement <3 x float> %ext, i32 1
%e3 = extractelement <3 x float> %ext, i32 2
%i1 = insertelement <4 x float> %ins, float %e1, i32 2
%i2 = insertelement <4 x float> %i1, float %e2, i32 1
%i3 = insertelement <4 x float> %i2, float %e3, i32 0
ret <4 x float> %i3
}
define <8 x float> @widen_extract4(<8 x float> %ins, <2 x float> %ext) {
; CHECK-LABEL: @widen_extract4(
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[EXT:%.*]], <2 x float> poison, <8 x i32> <i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[I1:%.*]] = shufflevector <8 x float> [[INS:%.*]], <8 x float> [[TMP1]], <8 x i32> <i32 0, i32 1, i32 8, i32 3, i32 4, i32 5, i32 6, i32 7>
; CHECK-NEXT: ret <8 x float> [[I1]]
;
%e1 = extractelement <2 x float> %ext, i32 0
%i1 = insertelement <8 x float> %ins, float %e1, i32 2
ret <8 x float> %i1
}
; PR26015: https://llvm.org/bugs/show_bug.cgi?id=26015
; The widening shuffle must be inserted before any uses.
define <8 x i16> @pr26015(<4 x i16> %t0) {
; CHECK-LABEL: @pr26015(
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i16> [[T0:%.*]], <4 x i16> poison, <8 x i32> <i32 undef, i32 undef, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[T5:%.*]] = shufflevector <8 x i16> <i16 0, i16 0, i16 0, i16 poison, i16 0, i16 0, i16 0, i16 poison>, <8 x i16> [[TMP1]], <8 x i32> <i32 0, i32 1, i32 2, i32 10, i32 4, i32 5, i32 6, i32 11>
; CHECK-NEXT: ret <8 x i16> [[T5]]
;
%t1 = extractelement <4 x i16> %t0, i32 2
%t2 = insertelement <8 x i16> zeroinitializer, i16 %t1, i32 3
%t3 = insertelement <8 x i16> %t2, i16 0, i32 6
%t4 = extractelement <4 x i16> %t0, i32 3
%t5 = insertelement <8 x i16> %t3, i16 %t4, i32 7
ret <8 x i16> %t5
}
; PR25999: https://llvm.org/bugs/show_bug.cgi?id=25999
; TODO: The widening shuffle could be inserted at the start of the function to allow the first extract to use it.
define <8 x i16> @pr25999(<4 x i16> %t0, i1 %b) {
; CHECK-LABEL: @pr25999(
; CHECK-NEXT: [[T1:%.*]] = extractelement <4 x i16> [[T0:%.*]], i32 2
; CHECK-NEXT: br i1 [[B:%.*]], label [[IF:%.*]], label [[END:%.*]]
; CHECK: if:
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i16> [[T0]], <4 x i16> poison, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[T3:%.*]] = insertelement <8 x i16> <i16 0, i16 0, i16 0, i16 poison, i16 0, i16 0, i16 0, i16 poison>, i16 [[T1]], i32 3
; CHECK-NEXT: [[T5:%.*]] = shufflevector <8 x i16> [[T3]], <8 x i16> [[TMP1]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 11>
; CHECK-NEXT: ret <8 x i16> [[T5]]
; CHECK: end:
; CHECK-NEXT: [[A1:%.*]] = add i16 [[T1]], 4
; CHECK-NEXT: [[T6:%.*]] = insertelement <8 x i16> <i16 poison, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, i16 [[A1]], i32 0
; CHECK-NEXT: ret <8 x i16> [[T6]]
;
%t1 = extractelement <4 x i16> %t0, i32 2
br i1 %b, label %if, label %end
if:
%t2 = insertelement <8 x i16> zeroinitializer, i16 %t1, i32 3
%t3 = insertelement <8 x i16> %t2, i16 0, i32 6
%t4 = extractelement <4 x i16> %t0, i32 3
%t5 = insertelement <8 x i16> %t3, i16 %t4, i32 7
ret <8 x i16> %t5
end:
%a1 = add i16 %t1, 4
%t6 = insertelement <8 x i16> zeroinitializer, i16 %a1, i32 0
ret <8 x i16> %t6
}
; The widening shuffle must be inserted at a valid point (after the PHIs).
define <4 x double> @pr25999_phis1(i1 %c, <2 x double> %a, <4 x double> %b) {
; CHECK-LABEL: @pr25999_phis1(
; CHECK-NEXT: bb1:
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB2:%.*]], label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[R:%.*]] = call <2 x double> @dummy(<2 x double> [[A:%.*]])
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[TMP1:%.*]] = phi <2 x double> [ [[A]], [[BB1:%.*]] ], [ [[R]], [[BB2]] ]
; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x double> [ [[B:%.*]], [[BB1]] ], [ zeroinitializer, [[BB2]] ]
; CHECK-NEXT: [[TMP0:%.*]] = shufflevector <2 x double> [[TMP1]], <2 x double> poison, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x double> [[TMP2]], <4 x double> [[TMP0]], <4 x i32> <i32 0, i32 1, i32 4, i32 3>
; CHECK-NEXT: ret <4 x double> [[TMP4]]
;
bb1:
br i1 %c, label %bb2, label %bb3
bb2:
%r = call <2 x double> @dummy(<2 x double> %a)
br label %bb3
bb3:
%tmp1 = phi <2 x double> [ %a, %bb1 ], [ %r, %bb2 ]
%tmp2 = phi <4 x double> [ %b, %bb1 ], [ zeroinitializer, %bb2 ]
%tmp3 = extractelement <2 x double> %tmp1, i32 0
%tmp4 = insertelement <4 x double> %tmp2, double %tmp3, i32 2
ret <4 x double> %tmp4
}
declare <2 x double> @dummy(<2 x double>)
define <4 x double> @pr25999_phis2(i1 %c, <2 x double> %a, <4 x double> %b) {
; CHECK-LABEL: @pr25999_phis2(
; CHECK-NEXT: bb1:
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB2:%.*]], label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[R:%.*]] = call <2 x double> @dummy(<2 x double> [[A:%.*]])
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[TMP1:%.*]] = phi <2 x double> [ [[A]], [[BB1:%.*]] ], [ [[R]], [[BB2]] ]
; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x double> [ [[B:%.*]], [[BB1]] ], [ zeroinitializer, [[BB2]] ]
; CHECK-NEXT: [[D:%.*]] = fadd <2 x double> [[TMP1]], [[TMP1]]
; CHECK-NEXT: [[TMP0:%.*]] = shufflevector <2 x double> [[D]], <2 x double> poison, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <4 x double> [[TMP2]], <4 x double> [[TMP0]], <4 x i32> <i32 0, i32 1, i32 4, i32 3>
; CHECK-NEXT: ret <4 x double> [[TMP4]]
;
bb1:
br i1 %c, label %bb2, label %bb3
bb2:
%r = call <2 x double> @dummy(<2 x double> %a)
br label %bb3
bb3:
%tmp1 = phi <2 x double> [ %a, %bb1 ], [ %r, %bb2 ]
%tmp2 = phi <4 x double> [ %b, %bb1 ], [ zeroinitializer, %bb2 ]
%d = fadd <2 x double> %tmp1, %tmp1
%tmp3 = extractelement <2 x double> %d, i32 0
%tmp4 = insertelement <4 x double> %tmp2, double %tmp3, i32 2
ret <4 x double> %tmp4
}
; PR26354: https://llvm.org/bugs/show_bug.cgi?id=26354
; Don't create a shufflevector if we know that we're not going to replace the insertelement.
define double @pr26354(<2 x double>* %tmp, i1 %B) {
; CHECK-LABEL: @pr26354(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[LD:%.*]] = load <2 x double>, <2 x double>* [[TMP:%.*]], align 16
; CHECK-NEXT: br i1 [[B:%.*]], label [[IF:%.*]], label [[END:%.*]]
; CHECK: if:
; CHECK-NEXT: [[E2:%.*]] = extractelement <2 x double> [[LD]], i32 1
; CHECK-NEXT: [[I1:%.*]] = insertelement <4 x double> <double 0.000000e+00, double 0.000000e+00, double 0.000000e+00, double poison>, double [[E2]], i32 3
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PH:%.*]] = phi <4 x double> [ undef, [[ENTRY:%.*]] ], [ [[I1]], [[IF]] ]
; CHECK-NEXT: [[E1:%.*]] = extractelement <2 x double> [[LD]], i32 0
; CHECK-NEXT: [[E3:%.*]] = extractelement <4 x double> [[PH]], i32 1
; CHECK-NEXT: [[MU:%.*]] = fmul double [[E1]], [[E3]]
; CHECK-NEXT: ret double [[MU]]
;
entry:
%ld = load <2 x double>, <2 x double>* %tmp
%e1 = extractelement <2 x double> %ld, i32 0
%e2 = extractelement <2 x double> %ld, i32 1
br i1 %B, label %if, label %end
if:
%i1 = insertelement <4 x double> zeroinitializer, double %e2, i32 3
br label %end
end:
%ph = phi <4 x double> [ undef, %entry ], [ %i1, %if ]
%e3 = extractelement <4 x double> %ph, i32 1
%mu = fmul double %e1, %e3
ret double %mu
}
; https://llvm.org/bugs/show_bug.cgi?id=30923
; Delete the widening shuffle if we're not going to reduce the extract/insert to a shuffle.
define <4 x float> @PR30923(<2 x float> %x) {
; CHECK-LABEL: @PR30923(
; CHECK-NEXT: bb1:
; CHECK-NEXT: [[EXT1:%.*]] = extractelement <2 x float> [[X:%.*]], i32 1
; CHECK-NEXT: store float [[EXT1]], float* undef, align 4
; CHECK-NEXT: br label [[BB2:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[EXT2:%.*]] = extractelement <2 x float> [[X]], i32 0
; CHECK-NEXT: [[INS1:%.*]] = insertelement <4 x float> <float 0.000000e+00, float 0.000000e+00, float poison, float poison>, float [[EXT2]], i32 2
; CHECK-NEXT: [[INS2:%.*]] = insertelement <4 x float> [[INS1]], float [[EXT1]], i32 3
; CHECK-NEXT: ret <4 x float> [[INS2]]
;
bb1:
%ext1 = extractelement <2 x float> %x, i32 1
store float %ext1, float* undef, align 4
br label %bb2
bb2:
%widen = shufflevector <2 x float> %x, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%ext2 = extractelement <4 x float> %widen, i32 0
%ins1 = insertelement <4 x float> <float 0.0, float 0.0, float undef, float undef>, float %ext2, i32 2
%ins2 = insertelement <4 x float> %ins1, float %ext1, i32 3
ret <4 x float> %ins2
}
; Don't insert extractelements from the wider vector before the def of the index operand.
define <4 x i32> @extractelt_insertion(<2 x i32> %x, i32 %y) {
; CHECK-LABEL: @extractelt_insertion(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; CHECK-NEXT: [[B:%.*]] = shufflevector <4 x i32> <i32 0, i32 0, i32 0, i32 poison>, <4 x i32> [[TMP0]], <4 x i32> <i32 0, i32 1, i32 2, i32 5>
; CHECK-NEXT: [[C:%.*]] = add i32 [[Y:%.*]], 3
; CHECK-NEXT: [[TMP1:%.*]] = extractelement <4 x i32> [[TMP0]], i32 [[C]]
; CHECK-NEXT: [[E:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: [[RET:%.*]] = select i1 [[E]], <4 x i32> [[B]], <4 x i32> zeroinitializer
; CHECK-NEXT: ret <4 x i32> [[RET]]
;
entry:
%a = extractelement <2 x i32> %x, i32 1
%b = insertelement <4 x i32> zeroinitializer, i32 %a, i64 3
%c = add i32 %y, 3
%d = extractelement <2 x i32> %x, i32 %c
%e = icmp eq i32 %d, 0
%ret = select i1 %e, <4 x i32> %b, <4 x i32> zeroinitializer
ret <4 x i32> %ret
}
; PR34724: https://bugs.llvm.org/show_bug.cgi?id=34724
define <4 x float> @collectShuffleElts(<2 x float> %x, float %y) {
; CHECK-LABEL: @collectShuffleElts(
; CHECK-NEXT: [[X0:%.*]] = extractelement <2 x float> [[X:%.*]], i32 0
; CHECK-NEXT: [[X1:%.*]] = extractelement <2 x float> [[X]], i32 1
; CHECK-NEXT: [[V1:%.*]] = insertelement <4 x float> undef, float [[X0]], i32 1
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x float> [[V1]], float [[X1]], i32 2
; CHECK-NEXT: [[V3:%.*]] = insertelement <4 x float> [[V2]], float [[Y:%.*]], i32 3
; CHECK-NEXT: ret <4 x float> [[V3]]
;
%x0 = extractelement <2 x float> %x, i32 0
%x1 = extractelement <2 x float> %x, i32 1
%v1 = insertelement <4 x float> undef, float %x0, i32 1
%v2 = insertelement <4 x float> %v1, float %x1, i32 2
%v3 = insertelement <4 x float> %v2, float %y, i32 3
ret <4 x float> %v3
}
; Simplest case - insert scalar into undef, then shuffle that value in place into another vector.
define <4 x float> @insert_shuffle(float %x, <4 x float> %y) {
; CHECK-LABEL: @insert_shuffle(
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 0
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
%r = shufflevector <4 x float> %xv, <4 x float> %y, <4 x i32> <i32 0, i32 5, i32 6, i32 7>
ret <4 x float> %r
}
; Insert scalar into some element of a dummy vector, then move it to a different element in another vector.
define <4 x float> @insert_shuffle_translate(float %x, <4 x float> %y) {
; CHECK-LABEL: @insert_shuffle_translate(
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 1
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
%r = shufflevector <4 x float> %xv, <4 x float> %y, <4 x i32> <i32 4, i32 0, i32 6, i32 7>
ret <4 x float> %r
}
; The vector operand of the insert is irrelevant.
define <4 x float> @insert_not_undef_shuffle_translate(float %x, <4 x float> %y, <4 x float> %q) {
; CHECK-LABEL: @insert_not_undef_shuffle_translate(
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 2
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> %q, float %x, i32 3
%r = shufflevector <4 x float> %xv, <4 x float> %y, <4 x i32> <i32 4, i32 5, i32 3, i32 7>
ret <4 x float> %r
}
; The insert may be the 2nd operand of the shuffle. The shuffle mask can include undef elements.
define <4 x float> @insert_not_undef_shuffle_translate_commute(float %x, <4 x float> %y, <4 x float> %q) {
; CHECK-LABEL: @insert_not_undef_shuffle_translate_commute(
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 1
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> %q, float %x, i32 2
%r = shufflevector <4 x float> %y, <4 x float> %xv, <4 x i32> <i32 0, i32 6, i32 2, i32 undef>
ret <4 x float> %r
}
; Both shuffle operands may be inserts - choose the correct side.
define <4 x float> @insert_insert_shuffle_translate(float %x1, float %x2, <4 x float> %q) {
; CHECK-LABEL: @insert_insert_shuffle_translate(
; CHECK-NEXT: [[XV2:%.*]] = insertelement <4 x float> [[Q:%.*]], float [[X2:%.*]], i32 2
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[XV2]], float [[X1:%.*]], i32 1
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv1 = insertelement <4 x float> %q, float %x1, i32 0
%xv2 = insertelement <4 x float> %q, float %x2, i32 2
%r = shufflevector <4 x float> %xv1, <4 x float> %xv2, <4 x i32> <i32 4, i32 0, i32 6, i32 7>
ret <4 x float> %r
}
; Both shuffle operands may be inserts - choose the correct side.
define <4 x float> @insert_insert_shuffle_translate_commute(float %x1, float %x2, <4 x float> %q) {
; CHECK-LABEL: @insert_insert_shuffle_translate_commute(
; CHECK-NEXT: [[XV1:%.*]] = insertelement <4 x float> [[Q:%.*]], float [[X1:%.*]], i32 0
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[XV1]], float [[X2:%.*]], i32 1
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv1 = insertelement <4 x float> %q, float %x1, i32 0
%xv2 = insertelement <4 x float> %q, float %x2, i32 2
%r = shufflevector <4 x float> %xv1, <4 x float> %xv2, <4 x i32> <i32 0, i32 6, i32 2, i32 3>
ret <4 x float> %r
}
; Negative test - this only works if the shuffle is choosing exactly 1 element from 1 of the inputs.
; TODO: But this could be a special-case because we're inserting into the same base vector.
define <4 x float> @insert_insert_shuffle_translate_wrong_mask(float %x1, float %x2, <4 x float> %q) {
; CHECK-LABEL: @insert_insert_shuffle_translate_wrong_mask(
; CHECK-NEXT: [[XV1:%.*]] = insertelement <4 x float> [[Q:%.*]], float [[X1:%.*]], i32 0
; CHECK-NEXT: [[XV2:%.*]] = insertelement <4 x float> [[Q]], float [[X2:%.*]], i32 2
; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[XV1]], <4 x float> [[XV2]], <4 x i32> <i32 0, i32 6, i32 2, i32 7>
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv1 = insertelement <4 x float> %q, float %x1, i32 0
%xv2 = insertelement <4 x float> %q, float %x2, i32 2
%r = shufflevector <4 x float> %xv1, <4 x float> %xv2, <4 x i32> <i32 0, i32 6, i32 2, i32 7>
ret <4 x float> %r
}
; The insert may have other uses.
declare void @use(<4 x float>)
define <4 x float> @insert_not_undef_shuffle_translate_commute_uses(float %x, <4 x float> %y, <4 x float> %q) {
; CHECK-LABEL: @insert_not_undef_shuffle_translate_commute_uses(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> [[Q:%.*]], float [[X:%.*]], i32 2
; CHECK-NEXT: call void @use(<4 x float> [[XV]])
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X]], i32 0
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> %q, float %x, i32 2
call void @use(<4 x float> %xv)
%r = shufflevector <4 x float> %y, <4 x float> %xv, <4 x i32> <i32 6, i32 undef, i32 2, i32 3>
ret <4 x float> %r
}
; Negative test - size-changing shuffle.
define <5 x float> @insert_not_undef_shuffle_translate_commute_lengthen(float %x, <4 x float> %y, <4 x float> %q) {
; CHECK-LABEL: @insert_not_undef_shuffle_translate_commute_lengthen(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> poison, float [[X:%.*]], i32 2
; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[Y:%.*]], <4 x float> [[XV]], <5 x i32> <i32 0, i32 6, i32 2, i32 undef, i32 undef>
; CHECK-NEXT: ret <5 x float> [[R]]
;
%xv = insertelement <4 x float> %q, float %x, i32 2
%r = shufflevector <4 x float> %y, <4 x float> %xv, <5 x i32> <i32 0, i32 6, i32 2, i32 undef, i32 undef>
ret <5 x float> %r
}
define <4 x float> @insert_nonzero_index_splat(float %x) {
; CHECK-LABEL: @insert_nonzero_index_splat(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[TMP1]], <4 x float> poison, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
; CHECK-NEXT: ret <4 x float> [[SPLAT]]
;
%xv = insertelement <4 x float> undef, float %x, i32 2
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 2, i32 2, i32 undef>
ret <4 x float> %splat
}
define <3 x double> @insert_nonzero_index_splat_narrow(double %x) {
; CHECK-LABEL: @insert_nonzero_index_splat_narrow(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x double> undef, double [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <3 x double> [[TMP1]], <3 x double> poison, <3 x i32> <i32 0, i32 undef, i32 0>
; CHECK-NEXT: ret <3 x double> [[SPLAT]]
;
%xv = insertelement <4 x double> undef, double %x, i32 3
%splat = shufflevector <4 x double> %xv, <4 x double> undef, <3 x i32> <i32 3, i32 undef, i32 3>
ret <3 x double> %splat
}
define <5 x i7> @insert_nonzero_index_splat_widen(i7 %x) {
; CHECK-LABEL: @insert_nonzero_index_splat_widen(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <5 x i7> undef, i7 [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <5 x i7> [[TMP1]], <5 x i7> poison, <5 x i32> <i32 undef, i32 0, i32 0, i32 undef, i32 0>
; CHECK-NEXT: ret <5 x i7> [[SPLAT]]
;
%xv = insertelement <4 x i7> undef, i7 %x, i32 1
%splat = shufflevector <4 x i7> %xv, <4 x i7> undef, <5 x i32> <i32 undef, i32 1, i32 1, i32 undef, i32 1>
ret <5 x i7> %splat
}
; Negative test - don't increase instruction count
define <4 x float> @insert_nonzero_index_splat_extra_use(float %x) {
; CHECK-LABEL: @insert_nonzero_index_splat_extra_use(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 2
; CHECK-NEXT: call void @use(<4 x float> [[XV]])
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 2, i32 2, i32 undef>
; CHECK-NEXT: ret <4 x float> [[SPLAT]]
;
%xv = insertelement <4 x float> undef, float %x, i32 2
call void @use(<4 x float> %xv)
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 2, i32 2, i32 undef>
ret <4 x float> %splat
}
; Negative test - non-undef base vector
define <4 x float> @insert_nonzero_index_splat_wrong_base(float %x, <4 x float> %y) {
; CHECK-LABEL: @insert_nonzero_index_splat_wrong_base(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 2
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 2, i32 3, i32 undef>
; CHECK-NEXT: ret <4 x float> [[SPLAT]]
;
%xv = insertelement <4 x float> %y, float %x, i32 2
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 2, i32 3, i32 undef>
ret <4 x float> %splat
}
; Negative test - non-constant insert index
define <4 x float> @insert_nonzero_index_splat_wrong_index(float %x, i32 %index) {
; CHECK-LABEL: @insert_nonzero_index_splat_wrong_index(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 [[INDEX:%.*]]
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 1, i32 1, i32 undef>
; CHECK-NEXT: ret <4 x float> [[SPLAT]]
;
%xv = insertelement <4 x float> undef, float %x, i32 %index
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 1, i32 1, i32 undef>
ret <4 x float> %splat
}
define <4 x float> @insert_in_splat(float %x) {
; CHECK-LABEL: @insert_in_splat(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> poison, <4 x i32> <i32 undef, i32 0, i32 0, i32 0>
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
%r = insertelement <4 x float> %splat, float %x, i32 3
ret <4 x float> %r
}
define <4 x float> @insert_in_splat_extra_uses(float %x) {
; CHECK-LABEL: @insert_in_splat_extra_uses(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: call void @use(<4 x float> [[XV]])
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
; CHECK-NEXT: call void @use(<4 x float> [[SPLAT]])
; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> poison, <4 x i32> <i32 undef, i32 0, i32 0, i32 0>
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
call void @use(<4 x float> %xv)
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
call void @use(<4 x float> %splat)
%r = insertelement <4 x float> %splat, float %x, i32 3
ret <4 x float> %r
}
; Negative test - not a constant index insert
define <4 x float> @insert_in_splat_variable_index(float %x, i32 %y) {
; CHECK-LABEL: @insert_in_splat_variable_index(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[SPLAT]], float [[X]], i32 [[Y:%.*]]
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 undef>
%r = insertelement <4 x float> %splat, float %x, i32 %y
ret <4 x float> %r
}
; Negative test - not a splat shuffle
define <4 x float> @insert_in_nonsplat(float %x, <4 x float> %y) {
; CHECK-LABEL: @insert_in_nonsplat(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> [[Y:%.*]], <4 x i32> <i32 undef, i32 0, i32 4, i32 undef>
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[SPLAT]], float [[X]], i32 3
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> undef, float %x, i32 0
%splat = shufflevector <4 x float> %xv, <4 x float> %y, <4 x i32> <i32 undef, i32 0, i32 4, i32 undef>
%r = insertelement <4 x float> %splat, float %x, i32 3
ret <4 x float> %r
}
; Negative test - not a splat shuffle
define <4 x float> @insert_in_nonsplat2(float %x, <4 x float> %y) {
; CHECK-LABEL: @insert_in_nonsplat2(
; CHECK-NEXT: [[XV:%.*]] = insertelement <4 x float> [[Y:%.*]], float [[X:%.*]], i32 0
; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x float> [[XV]], <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 1, i32 undef>
; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[SPLAT]], float [[X]], i32 3
; CHECK-NEXT: ret <4 x float> [[R]]
;
%xv = insertelement <4 x float> %y, float %x, i32 0
%splat = shufflevector <4 x float> %xv, <4 x float> undef, <4 x i32> <i32 undef, i32 0, i32 1, i32 undef>
%r = insertelement <4 x float> %splat, float %x, i32 3
ret <4 x float> %r
}
define <4 x i8> @shuf_identity_padding(<2 x i8> %x, i8 %y) {
; CHECK-LABEL: @shuf_identity_padding(
; CHECK-NEXT: [[V1:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x i8> [[V1]], i8 [[Y:%.*]], i32 2
; CHECK-NEXT: ret <4 x i8> [[V2]]
;
%v0 = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%x1 = extractelement <2 x i8> %x, i32 1
%v1 = insertelement <4 x i8> %v0, i8 %x1, i32 1
%v2 = insertelement <4 x i8> %v1, i8 %y, i32 2
ret <4 x i8> %v2
}
define <3 x i8> @shuf_identity_extract(<4 x i8> %x, i8 %y) {
; CHECK-LABEL: @shuf_identity_extract(
; CHECK-NEXT: [[V1:%.*]] = shufflevector <4 x i8> [[X:%.*]], <4 x i8> undef, <3 x i32> <i32 0, i32 1, i32 undef>
; CHECK-NEXT: [[V2:%.*]] = insertelement <3 x i8> [[V1]], i8 [[Y:%.*]], i32 2
; CHECK-NEXT: ret <3 x i8> [[V2]]
;
%v0 = shufflevector <4 x i8> %x, <4 x i8> undef, <3 x i32> <i32 0, i32 undef, i32 undef>
%x1 = extractelement <4 x i8> %x, i32 1
%v1 = insertelement <3 x i8> %v0, i8 %x1, i32 1
%v2 = insertelement <3 x i8> %v1, i8 %y, i32 2
ret <3 x i8> %v2
}
define <4 x float> @shuf_identity_extract_extra_use(<6 x float> %x, float %y) {
; CHECK-LABEL: @shuf_identity_extract_extra_use(
; CHECK-NEXT: [[V0:%.*]] = shufflevector <6 x float> [[X:%.*]], <6 x float> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 3>
; CHECK-NEXT: call void @use(<4 x float> [[V0]])
; CHECK-NEXT: [[V1:%.*]] = shufflevector <6 x float> [[X]], <6 x float> undef, <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x float> [[V1]], float [[Y:%.*]], i32 1
; CHECK-NEXT: ret <4 x float> [[V2]]
;
%v0 = shufflevector <6 x float> %x, <6 x float> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 3>
call void @use(<4 x float> %v0)
%x1 = extractelement <6 x float> %x, i32 2
%v1 = insertelement <4 x float> %v0, float %x1, i32 2
%v2 = insertelement <4 x float> %v1, float %y, i32 1
ret <4 x float> %v2
}
; Negative test - can't map variable index to shuffle mask.
define <4 x i8> @shuf_identity_padding_variable_index(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @shuf_identity_padding_variable_index(
; CHECK-NEXT: [[V0:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; CHECK-NEXT: [[X1:%.*]] = extractelement <2 x i8> [[X]], i32 [[INDEX:%.*]]
; CHECK-NEXT: [[V1:%.*]] = insertelement <4 x i8> [[V0]], i8 [[X1]], i32 [[INDEX]]
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x i8> [[V1]], i8 [[Y:%.*]], i32 2
; CHECK-NEXT: ret <4 x i8> [[V2]]
;
%v0 = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%x1 = extractelement <2 x i8> %x, i32 %index
%v1 = insertelement <4 x i8> %v0, i8 %x1, i32 %index
%v2 = insertelement <4 x i8> %v1, i8 %y, i32 2
ret <4 x i8> %v2
}
; Negative test - don't create arbitrary shuffle masks.
define <4 x i8> @shuf_identity_padding_wrong_source_vec(<2 x i8> %x, i8 %y, <2 x i8> %other) {
; CHECK-LABEL: @shuf_identity_padding_wrong_source_vec(
; CHECK-NEXT: [[V0:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[X1:%.*]] = extractelement <2 x i8> [[OTHER:%.*]], i32 1
; CHECK-NEXT: [[V1:%.*]] = insertelement <4 x i8> [[V0]], i8 [[X1]], i32 1
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x i8> [[V1]], i8 [[Y:%.*]], i32 2
; CHECK-NEXT: ret <4 x i8> [[V2]]
;
%v0 = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%x1 = extractelement <2 x i8> %other, i32 1
%v1 = insertelement <4 x i8> %v0, i8 %x1, i32 1
%v2 = insertelement <4 x i8> %v1, i8 %y, i32 2
ret <4 x i8> %v2
}
; Negative test - don't create arbitrary shuffle masks.
define <4 x i8> @shuf_identity_padding_wrong_index(<2 x i8> %x, i8 %y) {
; CHECK-LABEL: @shuf_identity_padding_wrong_index(
; CHECK-NEXT: [[V0:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; CHECK-NEXT: [[X1:%.*]] = extractelement <2 x i8> [[X]], i32 1
; CHECK-NEXT: [[V1:%.*]] = insertelement <4 x i8> [[V0]], i8 [[X1]], i32 2
; CHECK-NEXT: [[V2:%.*]] = insertelement <4 x i8> [[V1]], i8 [[Y:%.*]], i32 3
; CHECK-NEXT: ret <4 x i8> [[V2]]
;
%v0 = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%x1 = extractelement <2 x i8> %x, i32 1
%v1 = insertelement <4 x i8> %v0, i8 %x1, i32 2
%v2 = insertelement <4 x i8> %v1, i8 %y, i32 3
ret <4 x i8> %v2
}
define <4 x float> @insert_undemanded_element_op0(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_undemanded_element_op0(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[X]], <4 x float> [[Y:%.*]], <4 x i32> <i32 0, i32 7, i32 1, i32 4>
; CHECK-NEXT: ret <4 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %ins, <4 x float> %y, <4 x i32> <i32 0, i32 7, i32 1, i32 4>
ret <4 x float> %s
}
define <4 x float> @insert_undemanded_element_op1(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_undemanded_element_op1(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[Y:%.*]], <4 x float> [[X]], <4 x i32> <i32 3, i32 2, i32 1, i32 4>
; CHECK-NEXT: ret <4 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %y, <4 x float> %ins, <4 x i32> <i32 3, i32 2, i32 1, i32 4>
ret <4 x float> %s
}
define <5 x float> @insert_undemanded_element_unequal_length_op0(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_undemanded_element_unequal_length_op0(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[X]], <4 x float> [[Y:%.*]], <5 x i32> <i32 undef, i32 0, i32 7, i32 1, i32 4>
; CHECK-NEXT: ret <5 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %ins, <4 x float> %y, <5 x i32> <i32 undef, i32 0, i32 7, i32 1, i32 4>
ret <5 x float> %s
}
define <5 x float> @insert_undemanded_element_unequal_length_op1(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_undemanded_element_unequal_length_op1(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[Y:%.*]], <4 x float> [[X]], <5 x i32> <i32 undef, i32 3, i32 2, i32 1, i32 4>
; CHECK-NEXT: ret <5 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %y, <4 x float> %ins, <5 x i32> <i32 undef, i32 3, i32 2, i32 1, i32 4>
ret <5 x float> %s
}
; Negative test - shuffle chooses the inserted constant.
define <4 x float> @insert_demanded_element_op0(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_demanded_element_op0(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[INS]], <4 x float> [[Y:%.*]], <4 x i32> <i32 3, i32 2, i32 1, i32 4>
; CHECK-NEXT: ret <4 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %ins, <4 x float> %y, <4 x i32> <i32 3, i32 2, i32 1, i32 4>
ret <4 x float> %s
}
; Negative test - shuffle chooses the inserted constant.
define <4 x float> @insert_demanded_element_op1(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_demanded_element_op1(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.300000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[Y:%.*]], <4 x float> [[INS]], <4 x i32> <i32 0, i32 7, i32 1, i32 4>
; CHECK-NEXT: ret <4 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 43.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %y, <4 x float> %ins, <4 x i32> <i32 0, i32 7, i32 1, i32 4>
ret <4 x float> %s
}
; Negative test - shuffle chooses the inserted constant.
define <5 x float> @insert_demanded_element_unequal_length_op0(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_demanded_element_unequal_length_op0(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.200000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[INS]], <4 x float> [[Y:%.*]], <5 x i32> <i32 undef, i32 3, i32 2, i32 1, i32 4>
; CHECK-NEXT: ret <5 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 42.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %ins, <4 x float> %y, <5 x i32> <i32 undef, i32 3, i32 2, i32 1, i32 4>
ret <5 x float> %s
}
; Negative test - shuffle chooses the inserted constant.
define <5 x float> @insert_demanded_element_unequal_length_op1(<4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: @insert_demanded_element_unequal_length_op1(
; CHECK-NEXT: [[INS:%.*]] = insertelement <4 x float> [[X:%.*]], float 4.300000e+01, i32 3
; CHECK-NEXT: call void @use(<4 x float> [[INS]])
; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x float> [[Y:%.*]], <4 x float> [[INS]], <5 x i32> <i32 undef, i32 0, i32 7, i32 1, i32 4>
; CHECK-NEXT: ret <5 x float> [[S]]
;
%ins = insertelement <4 x float> %x, float 43.0, i32 3
call void @use(<4 x float> %ins)
%s = shufflevector <4 x float> %y, <4 x float> %ins, <5 x i32> <i32 undef, i32 0, i32 7, i32 1, i32 4>
ret <5 x float> %s
}
define <4 x float> @splat_constant(<4 x float> %x) {
; CHECK-LABEL: @splat_constant(
; CHECK-NEXT: [[INS3:%.*]] = insertelement <4 x float> [[X:%.*]], float 3.000000e+00, i32 3
; CHECK-NEXT: [[R:%.*]] = fadd <4 x float> [[INS3]], <float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00>
; CHECK-NEXT: ret <4 x float> [[R]]
;
%ins3 = insertelement <4 x float> %x, float 3.0, i32 3
%splat3 = shufflevector <4 x float> %ins3, <4 x float> undef, <4 x i32> <i32 3, i32 3, i32 3, i32 3>
%r = fadd <4 x float> %ins3, %splat3
ret <4 x float> %r
}
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