[llvm] Revert "[DAGCombiner] Add support for scalarising extracts of a vector setcc (#116031)" (PR #117556)
David Sherwood via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 25 05:30:20 PST 2024
https://github.com/david-arm created https://github.com/llvm/llvm-project/pull/117556
This reverts commit 22ec44f509ff266b581dbb490d7b040473b7c31a.
>From 0fda43f9768be63438926c5cef8ecf9208b2fa25 Mon Sep 17 00:00:00 2001
From: David Sherwood <david.sherwood at arm.com>
Date: Mon, 25 Nov 2024 13:28:23 +0000
Subject: [PATCH] Revert "[DAGCombiner] Add support for scalarising extracts of
a vector setcc (#116031)"
This reverts commit 22ec44f509ff266b581dbb490d7b040473b7c31a.
---
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 41 ++--
llvm/lib/Target/AArch64/AArch64ISelLowering.h | 4 -
llvm/lib/Target/RISCV/RISCVISelLowering.cpp | 2 +-
.../WebAssembly/WebAssemblyISelLowering.cpp | 2 +-
llvm/lib/Target/X86/X86ISelLowering.cpp | 2 +-
.../AArch64/dag-combine-concat-vectors.ll | 46 ++--
.../CodeGen/AArch64/extract-vector-cmp.ll | 225 ------------------
7 files changed, 41 insertions(+), 281 deletions(-)
delete mode 100644 llvm/test/CodeGen/AArch64/extract-vector-cmp.ll
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 57cce9f7852636..521829675ae7c3 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -22746,21 +22746,16 @@ SDValue DAGCombiner::scalarizeExtractedVectorLoad(SDNode *EVE, EVT InVecVT,
/// Transform a vector binary operation into a scalar binary operation by moving
/// the math/logic after an extract element of a vector.
-static SDValue scalarizeExtractedBinOp(SDNode *ExtElt, SelectionDAG &DAG,
- const SDLoc &DL) {
+static SDValue scalarizeExtractedBinop(SDNode *ExtElt, SelectionDAG &DAG,
+ const SDLoc &DL, bool LegalOperations) {
const TargetLowering &TLI = DAG.getTargetLoweringInfo();
SDValue Vec = ExtElt->getOperand(0);
SDValue Index = ExtElt->getOperand(1);
auto *IndexC = dyn_cast<ConstantSDNode>(Index);
- unsigned Opc = Vec.getOpcode();
- if (!IndexC || (!TLI.isBinOp(Opc) && Opc != ISD::SETCC) || !Vec.hasOneUse() ||
+ if (!IndexC || !TLI.isBinOp(Vec.getOpcode()) || !Vec.hasOneUse() ||
Vec->getNumValues() != 1)
return SDValue();
- EVT ResVT = ExtElt->getValueType(0);
- if (Opc == ISD::SETCC && ResVT != Vec.getValueType().getVectorElementType())
- return SDValue();
-
// Targets may want to avoid this to prevent an expensive register transfer.
if (!TLI.shouldScalarizeBinop(Vec))
return SDValue();
@@ -22771,23 +22766,19 @@ static SDValue scalarizeExtractedBinOp(SDNode *ExtElt, SelectionDAG &DAG,
SDValue Op0 = Vec.getOperand(0);
SDValue Op1 = Vec.getOperand(1);
APInt SplatVal;
- if (!isAnyConstantBuildVector(Op0, true) &&
- !ISD::isConstantSplatVector(Op0.getNode(), SplatVal) &&
- !isAnyConstantBuildVector(Op1, true) &&
- !ISD::isConstantSplatVector(Op1.getNode(), SplatVal))
- return SDValue();
-
- // extractelt (op X, C), IndexC --> op (extractelt X, IndexC), C'
- // extractelt (op C, X), IndexC --> op C', (extractelt X, IndexC)
- EVT OpVT = Op0->getValueType(0).getVectorElementType();
- Op0 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, OpVT, Op0, Index);
- Op1 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, OpVT, Op1, Index);
+ if (isAnyConstantBuildVector(Op0, true) ||
+ ISD::isConstantSplatVector(Op0.getNode(), SplatVal) ||
+ isAnyConstantBuildVector(Op1, true) ||
+ ISD::isConstantSplatVector(Op1.getNode(), SplatVal)) {
+ // extractelt (binop X, C), IndexC --> binop (extractelt X, IndexC), C'
+ // extractelt (binop C, X), IndexC --> binop C', (extractelt X, IndexC)
+ EVT VT = ExtElt->getValueType(0);
+ SDValue Ext0 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, VT, Op0, Index);
+ SDValue Ext1 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, VT, Op1, Index);
+ return DAG.getNode(Vec.getOpcode(), DL, VT, Ext0, Ext1);
+ }
- if (Opc == ISD::SETCC)
- return DAG.getSetCC(DL, ResVT, Op0, Op1,
- cast<CondCodeSDNode>(Vec->getOperand(2))->get());
- else
- return DAG.getNode(Opc, DL, ResVT, Op0, Op1);
+ return SDValue();
}
// Given a ISD::EXTRACT_VECTOR_ELT, which is a glorified bit sequence extract,
@@ -23020,7 +23011,7 @@ SDValue DAGCombiner::visitEXTRACT_VECTOR_ELT(SDNode *N) {
}
}
- if (SDValue BO = scalarizeExtractedBinOp(N, DAG, DL))
+ if (SDValue BO = scalarizeExtractedBinop(N, DAG, DL, LegalOperations))
return BO;
if (VecVT.isScalableVector())
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.h b/llvm/lib/Target/AArch64/AArch64ISelLowering.h
index d51b36f7e49946..cb0b9e965277aa 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.h
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.h
@@ -1348,10 +1348,6 @@ class AArch64TargetLowering : public TargetLowering {
unsigned getMinimumJumpTableEntries() const override;
bool softPromoteHalfType() const override { return true; }
-
- bool shouldScalarizeBinop(SDValue VecOp) const override {
- return VecOp.getOpcode() == ISD::SETCC;
- }
};
namespace AArch64 {
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index c0021f69f18e77..6eae756b25fb5b 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -2093,7 +2093,7 @@ bool RISCVTargetLowering::shouldScalarizeBinop(SDValue VecOp) const {
// Assume target opcodes can't be scalarized.
// TODO - do we have any exceptions?
- if (Opc >= ISD::BUILTIN_OP_END || !isBinOp(Opc))
+ if (Opc >= ISD::BUILTIN_OP_END)
return false;
// If the vector op is not supported, try to convert to scalar.
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index a52af6832d583f..2d00889407ff48 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -429,7 +429,7 @@ bool WebAssemblyTargetLowering::shouldScalarizeBinop(SDValue VecOp) const {
// Assume target opcodes can't be scalarized.
// TODO - do we have any exceptions?
- if (Opc >= ISD::BUILTIN_OP_END || !isBinOp(Opc))
+ if (Opc >= ISD::BUILTIN_OP_END)
return false;
// If the vector op is not supported, try to convert to scalar.
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index d3b569eccc17be..9048d1d83f1874 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -3300,7 +3300,7 @@ bool X86TargetLowering::shouldScalarizeBinop(SDValue VecOp) const {
// Assume target opcodes can't be scalarized.
// TODO - do we have any exceptions?
- if (Opc >= ISD::BUILTIN_OP_END || !isBinOp(Opc))
+ if (Opc >= ISD::BUILTIN_OP_END)
return false;
// If the vector op is not supported, try to convert to scalar.
diff --git a/llvm/test/CodeGen/AArch64/dag-combine-concat-vectors.ll b/llvm/test/CodeGen/AArch64/dag-combine-concat-vectors.ll
index 4cb1d5b2fb345d..5a5dee0b53d439 100644
--- a/llvm/test/CodeGen/AArch64/dag-combine-concat-vectors.ll
+++ b/llvm/test/CodeGen/AArch64/dag-combine-concat-vectors.ll
@@ -5,7 +5,7 @@
declare void @llvm.masked.scatter.nxv16i8.nxv16p0(<vscale x 16 x i8>, <vscale x 16 x ptr>, i32 immarg, <vscale x 16 x i1>)
-define fastcc i8 @allocno_reload_assign(ptr %p) {
+define fastcc i8 @allocno_reload_assign() {
; CHECK-LABEL: allocno_reload_assign:
; CHECK: // %bb.0:
; CHECK-NEXT: fmov d0, xzr
@@ -14,8 +14,8 @@ define fastcc i8 @allocno_reload_assign(ptr %p) {
; CHECK-NEXT: cmpeq p0.d, p0/z, z0.d, #0
; CHECK-NEXT: uzp1 p0.s, p0.s, p0.s
; CHECK-NEXT: uzp1 p0.h, p0.h, p0.h
-; CHECK-NEXT: uzp1 p8.b, p0.b, p0.b
-; CHECK-NEXT: mov z0.b, p8/z, #1 // =0x1
+; CHECK-NEXT: uzp1 p0.b, p0.b, p0.b
+; CHECK-NEXT: mov z0.b, p0/z, #1 // =0x1
; CHECK-NEXT: fmov w8, s0
; CHECK-NEXT: mov z0.b, #0 // =0x0
; CHECK-NEXT: uunpklo z1.h, z0.b
@@ -30,35 +30,34 @@ define fastcc i8 @allocno_reload_assign(ptr %p) {
; CHECK-NEXT: punpklo p1.h, p0.b
; CHECK-NEXT: punpkhi p0.h, p0.b
; CHECK-NEXT: punpklo p2.h, p1.b
-; CHECK-NEXT: punpkhi p4.h, p1.b
+; CHECK-NEXT: punpkhi p3.h, p1.b
; CHECK-NEXT: uunpklo z0.d, z2.s
; CHECK-NEXT: uunpkhi z1.d, z2.s
-; CHECK-NEXT: punpklo p6.h, p0.b
+; CHECK-NEXT: punpklo p5.h, p0.b
; CHECK-NEXT: uunpklo z2.d, z3.s
; CHECK-NEXT: uunpkhi z3.d, z3.s
-; CHECK-NEXT: punpkhi p0.h, p0.b
+; CHECK-NEXT: punpkhi p7.h, p0.b
; CHECK-NEXT: uunpklo z4.d, z5.s
; CHECK-NEXT: uunpkhi z5.d, z5.s
; CHECK-NEXT: uunpklo z6.d, z7.s
; CHECK-NEXT: uunpkhi z7.d, z7.s
-; CHECK-NEXT: punpklo p1.h, p2.b
-; CHECK-NEXT: punpkhi p2.h, p2.b
-; CHECK-NEXT: punpklo p3.h, p4.b
-; CHECK-NEXT: punpkhi p4.h, p4.b
-; CHECK-NEXT: punpklo p5.h, p6.b
-; CHECK-NEXT: punpkhi p6.h, p6.b
-; CHECK-NEXT: punpklo p7.h, p0.b
-; CHECK-NEXT: punpkhi p0.h, p0.b
+; CHECK-NEXT: punpklo p0.h, p2.b
+; CHECK-NEXT: punpkhi p1.h, p2.b
+; CHECK-NEXT: punpklo p2.h, p3.b
+; CHECK-NEXT: punpkhi p3.h, p3.b
+; CHECK-NEXT: punpklo p4.h, p5.b
+; CHECK-NEXT: punpkhi p5.h, p5.b
+; CHECK-NEXT: punpklo p6.h, p7.b
+; CHECK-NEXT: punpkhi p7.h, p7.b
; CHECK-NEXT: .LBB0_1: // =>This Inner Loop Header: Depth=1
-; CHECK-NEXT: st1b { z0.d }, p1, [z16.d]
-; CHECK-NEXT: st1b { z1.d }, p2, [z16.d]
-; CHECK-NEXT: st1b { z2.d }, p3, [z16.d]
-; CHECK-NEXT: st1b { z3.d }, p4, [z16.d]
-; CHECK-NEXT: st1b { z4.d }, p5, [z16.d]
-; CHECK-NEXT: st1b { z5.d }, p6, [z16.d]
-; CHECK-NEXT: st1b { z6.d }, p7, [z16.d]
-; CHECK-NEXT: st1b { z7.d }, p0, [z16.d]
-; CHECK-NEXT: str p8, [x0]
+; CHECK-NEXT: st1b { z0.d }, p0, [z16.d]
+; CHECK-NEXT: st1b { z1.d }, p1, [z16.d]
+; CHECK-NEXT: st1b { z2.d }, p2, [z16.d]
+; CHECK-NEXT: st1b { z3.d }, p3, [z16.d]
+; CHECK-NEXT: st1b { z4.d }, p4, [z16.d]
+; CHECK-NEXT: st1b { z5.d }, p5, [z16.d]
+; CHECK-NEXT: st1b { z6.d }, p6, [z16.d]
+; CHECK-NEXT: st1b { z7.d }, p7, [z16.d]
; CHECK-NEXT: b .LBB0_1
br label %1
@@ -67,7 +66,6 @@ define fastcc i8 @allocno_reload_assign(ptr %p) {
%constexpr1 = shufflevector <vscale x 16 x i1> %constexpr, <vscale x 16 x i1> poison, <vscale x 16 x i32> zeroinitializer
%constexpr2 = xor <vscale x 16 x i1> %constexpr1, shufflevector (<vscale x 16 x i1> insertelement (<vscale x 16 x i1> poison, i1 true, i64 0), <vscale x 16 x i1> poison, <vscale x 16 x i32> zeroinitializer)
call void @llvm.masked.scatter.nxv16i8.nxv16p0(<vscale x 16 x i8> zeroinitializer, <vscale x 16 x ptr> zeroinitializer, i32 0, <vscale x 16 x i1> %constexpr2)
- store <vscale x 16 x i1> %constexpr, ptr %p, align 16
br label %1
}
diff --git a/llvm/test/CodeGen/AArch64/extract-vector-cmp.ll b/llvm/test/CodeGen/AArch64/extract-vector-cmp.ll
deleted file mode 100644
index 2388a0f206a51c..00000000000000
--- a/llvm/test/CodeGen/AArch64/extract-vector-cmp.ll
+++ /dev/null
@@ -1,225 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
-; RUN: llc -mattr=+sve < %s | FileCheck %s
-
-target triple = "aarch64-unknown-linux-gnu"
-
-
-define i1 @extract_icmp_v4i32_const_splat_rhs(<4 x i32> %a) {
-; CHECK-LABEL: extract_icmp_v4i32_const_splat_rhs:
-; CHECK: // %bb.0:
-; CHECK-NEXT: mov w8, v0.s[1]
-; CHECK-NEXT: cmp w8, #5
-; CHECK-NEXT: cset w0, lo
-; CHECK-NEXT: ret
- %icmp = icmp ult <4 x i32> %a, splat (i32 5)
- %ext = extractelement <4 x i1> %icmp, i32 1
- ret i1 %ext
-}
-
-define i1 @extract_icmp_v4i32_const_splat_lhs(<4 x i32> %a) {
-; CHECK-LABEL: extract_icmp_v4i32_const_splat_lhs:
-; CHECK: // %bb.0:
-; CHECK-NEXT: mov w8, v0.s[1]
-; CHECK-NEXT: cmp w8, #7
-; CHECK-NEXT: cset w0, hi
-; CHECK-NEXT: ret
- %icmp = icmp ult <4 x i32> splat(i32 7), %a
- %ext = extractelement <4 x i1> %icmp, i32 1
- ret i1 %ext
-}
-
-define i1 @extract_icmp_v4i32_const_vec_rhs(<4 x i32> %a) {
-; CHECK-LABEL: extract_icmp_v4i32_const_vec_rhs:
-; CHECK: // %bb.0:
-; CHECK-NEXT: mov w8, v0.s[1]
-; CHECK-NEXT: cmp w8, #234
-; CHECK-NEXT: cset w0, lo
-; CHECK-NEXT: ret
- %icmp = icmp ult <4 x i32> %a, <i32 5, i32 234, i32 -1, i32 7>
- %ext = extractelement <4 x i1> %icmp, i32 1
- ret i1 %ext
-}
-
-define i1 @extract_fcmp_v4f32_const_splat_rhs(<4 x float> %a) {
-; CHECK-LABEL: extract_fcmp_v4f32_const_splat_rhs:
-; CHECK: // %bb.0:
-; CHECK-NEXT: mov s0, v0.s[1]
-; CHECK-NEXT: fmov s1, #4.00000000
-; CHECK-NEXT: fcmp s0, s1
-; CHECK-NEXT: cset w0, lt
-; CHECK-NEXT: ret
- %fcmp = fcmp ult <4 x float> %a, splat(float 4.0e+0)
- %ext = extractelement <4 x i1> %fcmp, i32 1
- ret i1 %ext
-}
-
-define void @vector_loop_with_icmp(ptr nocapture noundef writeonly %dest) {
-; CHECK-LABEL: vector_loop_with_icmp:
-; CHECK: // %bb.0: // %entry
-; CHECK-NEXT: index z0.d, #0, #1
-; CHECK-NEXT: mov w8, #4 // =0x4
-; CHECK-NEXT: mov w9, #16 // =0x10
-; CHECK-NEXT: dup v2.2d, x8
-; CHECK-NEXT: add x8, x0, #8
-; CHECK-NEXT: mov w10, #1 // =0x1
-; CHECK-NEXT: mov z1.d, z0.d
-; CHECK-NEXT: add z1.d, z1.d, #2 // =0x2
-; CHECK-NEXT: b .LBB4_2
-; CHECK-NEXT: .LBB4_1: // %pred.store.continue18
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: add v1.2d, v1.2d, v2.2d
-; CHECK-NEXT: add v0.2d, v0.2d, v2.2d
-; CHECK-NEXT: subs x9, x9, #4
-; CHECK-NEXT: add x8, x8, #16
-; CHECK-NEXT: b.eq .LBB4_10
-; CHECK-NEXT: .LBB4_2: // %vector.body
-; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
-; CHECK-NEXT: fmov x11, d0
-; CHECK-NEXT: cmp x11, #14
-; CHECK-NEXT: b.hi .LBB4_4
-; CHECK-NEXT: // %bb.3: // %pred.store.if
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: stur w10, [x8, #-8]
-; CHECK-NEXT: .LBB4_4: // %pred.store.continue
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: mov x11, v0.d[1]
-; CHECK-NEXT: cmp x11, #14
-; CHECK-NEXT: b.hi .LBB4_6
-; CHECK-NEXT: // %bb.5: // %pred.store.if5
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: stur w10, [x8, #-4]
-; CHECK-NEXT: .LBB4_6: // %pred.store.continue6
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: fmov x11, d1
-; CHECK-NEXT: cmp x11, #14
-; CHECK-NEXT: b.hi .LBB4_8
-; CHECK-NEXT: // %bb.7: // %pred.store.if7
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: str w10, [x8]
-; CHECK-NEXT: .LBB4_8: // %pred.store.continue8
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: mov x11, v1.d[1]
-; CHECK-NEXT: cmp x11, #14
-; CHECK-NEXT: b.hi .LBB4_1
-; CHECK-NEXT: // %bb.9: // %pred.store.if9
-; CHECK-NEXT: // in Loop: Header=BB4_2 Depth=1
-; CHECK-NEXT: str w10, [x8, #4]
-; CHECK-NEXT: b .LBB4_1
-; CHECK-NEXT: .LBB4_10: // %for.cond.cleanup
-; CHECK-NEXT: ret
-entry:
- br label %vector.body
-
-vector.body:
- %index = phi i64 [ 0, %entry ], [ %index.next, %pred.store.continue18 ]
- %vec.ind = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %entry ], [ %vec.ind.next, %pred.store.continue18 ]
- %0 = icmp ult <4 x i64> %vec.ind, <i64 15, i64 15, i64 15, i64 15>
- %1 = extractelement <4 x i1> %0, i64 0
- br i1 %1, label %pred.store.if, label %pred.store.continue
-
-pred.store.if:
- %2 = getelementptr inbounds i32, ptr %dest, i64 %index
- store i32 1, ptr %2, align 4
- br label %pred.store.continue
-
-pred.store.continue:
- %3 = extractelement <4 x i1> %0, i64 1
- br i1 %3, label %pred.store.if5, label %pred.store.continue6
-
-pred.store.if5:
- %4 = or disjoint i64 %index, 1
- %5 = getelementptr inbounds i32, ptr %dest, i64 %4
- store i32 1, ptr %5, align 4
- br label %pred.store.continue6
-
-pred.store.continue6:
- %6 = extractelement <4 x i1> %0, i64 2
- br i1 %6, label %pred.store.if7, label %pred.store.continue8
-
-pred.store.if7:
- %7 = or disjoint i64 %index, 2
- %8 = getelementptr inbounds i32, ptr %dest, i64 %7
- store i32 1, ptr %8, align 4
- br label %pred.store.continue8
-
-pred.store.continue8:
- %9 = extractelement <4 x i1> %0, i64 3
- br i1 %9, label %pred.store.if9, label %pred.store.continue18
-
-pred.store.if9:
- %10 = or disjoint i64 %index, 3
- %11 = getelementptr inbounds i32, ptr %dest, i64 %10
- store i32 1, ptr %11, align 4
- br label %pred.store.continue18
-
-pred.store.continue18:
- %index.next = add i64 %index, 4
- %vec.ind.next = add <4 x i64> %vec.ind, <i64 4, i64 4, i64 4, i64 4>
- %24 = icmp eq i64 %index.next, 16
- br i1 %24, label %for.cond.cleanup, label %vector.body
-
-for.cond.cleanup:
- ret void
-}
-
-
-; Negative tests
-
-define i1 @extract_icmp_v4i32_splat_rhs(<4 x i32> %a, i32 %b) {
-; CHECK-LABEL: extract_icmp_v4i32_splat_rhs:
-; CHECK: // %bb.0:
-; CHECK-NEXT: dup v1.4s, w0
-; CHECK-NEXT: cmhi v0.4s, v1.4s, v0.4s
-; CHECK-NEXT: xtn v0.4h, v0.4s
-; CHECK-NEXT: umov w8, v0.h[1]
-; CHECK-NEXT: and w0, w8, #0x1
-; CHECK-NEXT: ret
- %ins = insertelement <4 x i32> poison, i32 %b, i32 0
- %splat = shufflevector <4 x i32> %ins, <4 x i32> poison, <4 x i32> zeroinitializer
- %icmp = icmp ult <4 x i32> %a, %splat
- %ext = extractelement <4 x i1> %icmp, i32 1
- ret i1 %ext
-}
-
-define i1 @extract_icmp_v4i32_splat_rhs_mul_use(<4 x i32> %a, ptr %p) {
-; CHECK-LABEL: extract_icmp_v4i32_splat_rhs_mul_use:
-; CHECK: // %bb.0:
-; CHECK-NEXT: movi v1.4s, #235
-; CHECK-NEXT: adrp x9, .LCPI6_0
-; CHECK-NEXT: mov x8, x0
-; CHECK-NEXT: ldr q2, [x9, :lo12:.LCPI6_0]
-; CHECK-NEXT: cmhi v0.4s, v1.4s, v0.4s
-; CHECK-NEXT: xtn v1.4h, v0.4s
-; CHECK-NEXT: and v0.16b, v0.16b, v2.16b
-; CHECK-NEXT: addv s0, v0.4s
-; CHECK-NEXT: umov w9, v1.h[1]
-; CHECK-NEXT: fmov w10, s0
-; CHECK-NEXT: and w0, w9, #0x1
-; CHECK-NEXT: strb w10, [x8]
-; CHECK-NEXT: ret
- %icmp = icmp ult <4 x i32> %a, splat(i32 235)
- %ext = extractelement <4 x i1> %icmp, i32 1
- store <4 x i1> %icmp, ptr %p, align 4
- ret i1 %ext
-}
-
-define i1 @extract_icmp_v4i32_splat_rhs_unknown_idx(<4 x i32> %a, i32 %c) {
-; CHECK-LABEL: extract_icmp_v4i32_splat_rhs_unknown_idx:
-; CHECK: // %bb.0:
-; CHECK-NEXT: sub sp, sp, #16
-; CHECK-NEXT: .cfi_def_cfa_offset 16
-; CHECK-NEXT: movi v1.4s, #127
-; CHECK-NEXT: add x8, sp, #8
-; CHECK-NEXT: // kill: def $w0 killed $w0 def $x0
-; CHECK-NEXT: bfi x8, x0, #1, #2
-; CHECK-NEXT: cmhi v0.4s, v1.4s, v0.4s
-; CHECK-NEXT: xtn v0.4h, v0.4s
-; CHECK-NEXT: str d0, [sp, #8]
-; CHECK-NEXT: ldrh w8, [x8]
-; CHECK-NEXT: and w0, w8, #0x1
-; CHECK-NEXT: add sp, sp, #16
-; CHECK-NEXT: ret
- %icmp = icmp ult <4 x i32> %a, splat(i32 127)
- %ext = extractelement <4 x i1> %icmp, i32 %c
- ret i1 %ext
-}
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