[llvm] [LoongArch] Optimize insertelement containing variable index using compare+select (PR #151131)
via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 29 04:59:15 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-loongarch
Author: ZhaoQi (zhaoqi5)
<details>
<summary>Changes</summary>
---
Full diff: https://github.com/llvm/llvm-project/pull/151131.diff
3 Files Affected:
- (modified) llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp (+33-1)
- (modified) llvm/test/CodeGen/LoongArch/lasx/ir-instruction/insertelement.ll (+50-90)
- (modified) llvm/test/CodeGen/LoongArch/lsx/ir-instruction/insertelement.ll (+50-48)
``````````diff
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index d96136cddb3b0..6f01c7bd06111 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -2621,8 +2621,40 @@ LoongArchTargetLowering::lowerEXTRACT_VECTOR_ELT(SDValue Op,
SDValue
LoongArchTargetLowering::lowerINSERT_VECTOR_ELT(SDValue Op,
SelectionDAG &DAG) const {
- if (isa<ConstantSDNode>(Op->getOperand(2)))
+ MVT VT = Op.getSimpleValueType();
+ MVT EltVT = VT.getVectorElementType();
+ unsigned NumElts = VT.getVectorNumElements();
+ unsigned EltSizeInBits = EltVT.getScalarSizeInBits();
+ SDLoc DL(Op);
+ SDValue Op0 = Op.getOperand(0);
+ SDValue Op1 = Op.getOperand(1);
+ SDValue Op2 = Op.getOperand(2);
+
+ if (isa<ConstantSDNode>(Op2)) {
return Op;
+ } else {
+ MVT IdxTy = MVT::getIntegerVT(EltSizeInBits);
+ MVT IdxVTy = MVT::getVectorVT(IdxTy, NumElts);
+
+ if (!isTypeLegal(VT) || !isTypeLegal(IdxVTy))
+ return SDValue();
+
+ SDValue SplatElt = DAG.getSplatBuildVector(VT, DL, Op1);
+ SDValue SplatIdx = DAG.getSplatBuildVector(IdxVTy, DL, Op2);
+
+ SmallVector<SDValue, 32> RawIndices;
+ for (unsigned i = 0; i < NumElts; ++i)
+ RawIndices.push_back(DAG.getConstant(i, DL, Subtarget.getGRLenVT()));
+ SDValue Indices = DAG.getBuildVector(IdxVTy, DL, RawIndices);
+
+ // insert vec, elt, idx
+ // =>
+ // select (splatidx == {0,1,2...}) ? splatelt : vec
+ SDValue SelectCC =
+ DAG.getSetCC(DL, IdxVTy, SplatIdx, Indices, ISD::CondCode::SETEQ);
+ return DAG.getNode(ISD::VSELECT, DL, VT, SelectCC, SplatElt, Op0);
+ }
+
return SDValue();
}
diff --git a/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/insertelement.ll b/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/insertelement.ll
index c1d4220fc1166..e5a85245710de 100644
--- a/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/insertelement.ll
+++ b/llvm/test/CodeGen/LoongArch/lasx/ir-instruction/insertelement.ll
@@ -114,22 +114,15 @@ define void @insert_4xdouble(ptr %src, ptr %dst, double %in) nounwind {
define void @insert_32xi8_idx(ptr %src, ptr %dst, i8 %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_32xi8_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr0, $a0, 0
-; CHECK-NEXT: xvst $xr0, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a3, 4, 0
-; CHECK-NEXT: st.b $a2, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI8_0)
+; CHECK-NEXT: xvld $xr0, $a4, %pc_lo12(.LCPI8_0)
+; CHECK-NEXT: xvld $xr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: xvreplgr2vr.b $xr2, $a0
+; CHECK-NEXT: xvseq.b $xr0, $xr2, $xr0
+; CHECK-NEXT: xvreplgr2vr.b $xr2, $a2
+; CHECK-NEXT: xvbitsel.v $xr0, $xr1, $xr2, $xr0
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <32 x i8>, ptr %src
%v_new = insertelement <32 x i8> %v, i8 %in, i32 %idx
@@ -140,22 +133,15 @@ define void @insert_32xi8_idx(ptr %src, ptr %dst, i8 %in, i32 %idx) nounwind {
define void @insert_16xi16_idx(ptr %src, ptr %dst, i16 %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_16xi16_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr0, $a0, 0
-; CHECK-NEXT: xvst $xr0, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a3, 4, 1
-; CHECK-NEXT: st.h $a2, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI9_0)
+; CHECK-NEXT: xvld $xr0, $a4, %pc_lo12(.LCPI9_0)
+; CHECK-NEXT: xvld $xr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: xvreplgr2vr.h $xr2, $a0
+; CHECK-NEXT: xvseq.h $xr0, $xr2, $xr0
+; CHECK-NEXT: xvreplgr2vr.h $xr2, $a2
+; CHECK-NEXT: xvbitsel.v $xr0, $xr1, $xr2, $xr0
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <16 x i16>, ptr %src
%v_new = insertelement <16 x i16> %v, i16 %in, i32 %idx
@@ -166,22 +152,15 @@ define void @insert_16xi16_idx(ptr %src, ptr %dst, i16 %in, i32 %idx) nounwind {
define void @insert_8xi32_idx(ptr %src, ptr %dst, i32 %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_8xi32_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr0, $a0, 0
-; CHECK-NEXT: xvst $xr0, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a3, 4, 2
-; CHECK-NEXT: st.w $a2, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI10_0)
+; CHECK-NEXT: xvld $xr0, $a4, %pc_lo12(.LCPI10_0)
+; CHECK-NEXT: xvld $xr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: xvreplgr2vr.w $xr2, $a0
+; CHECK-NEXT: xvseq.w $xr0, $xr2, $xr0
+; CHECK-NEXT: xvreplgr2vr.w $xr2, $a2
+; CHECK-NEXT: xvbitsel.v $xr0, $xr1, $xr2, $xr0
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <8 x i32>, ptr %src
%v_new = insertelement <8 x i32> %v, i32 %in, i32 %idx
@@ -192,22 +171,15 @@ define void @insert_8xi32_idx(ptr %src, ptr %dst, i32 %in, i32 %idx) nounwind {
define void @insert_4xi64_idx(ptr %src, ptr %dst, i64 %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_4xi64_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr0, $a0, 0
-; CHECK-NEXT: xvst $xr0, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a3, 4, 3
-; CHECK-NEXT: st.d $a2, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI11_0)
+; CHECK-NEXT: xvld $xr0, $a4, %pc_lo12(.LCPI11_0)
+; CHECK-NEXT: xvld $xr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: xvreplgr2vr.d $xr2, $a0
+; CHECK-NEXT: xvseq.d $xr0, $xr2, $xr0
+; CHECK-NEXT: xvreplgr2vr.d $xr2, $a2
+; CHECK-NEXT: xvbitsel.v $xr0, $xr1, $xr2, $xr0
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <4 x i64>, ptr %src
%v_new = insertelement <4 x i64> %v, i64 %in, i32 %idx
@@ -218,22 +190,16 @@ define void @insert_4xi64_idx(ptr %src, ptr %dst, i64 %in, i32 %idx) nounwind {
define void @insert_8xfloat_idx(ptr %src, ptr %dst, float %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_8xfloat_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr1, $a0, 0
-; CHECK-NEXT: xvst $xr1, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a2, 4, 2
-; CHECK-NEXT: fst.s $fa0, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $xr0
+; CHECK-NEXT: pcalau12i $a3, %pc_hi20(.LCPI12_0)
+; CHECK-NEXT: xvld $xr1, $a3, %pc_lo12(.LCPI12_0)
+; CHECK-NEXT: xvld $xr2, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a2, 31, 0
+; CHECK-NEXT: xvreplgr2vr.w $xr3, $a0
+; CHECK-NEXT: xvseq.w $xr1, $xr3, $xr1
+; CHECK-NEXT: xvreplve0.w $xr0, $xr0
+; CHECK-NEXT: xvbitsel.v $xr0, $xr2, $xr0, $xr1
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <8 x float>, ptr %src
%v_new = insertelement <8 x float> %v, float %in, i32 %idx
@@ -244,22 +210,16 @@ define void @insert_8xfloat_idx(ptr %src, ptr %dst, float %in, i32 %idx) nounwin
define void @insert_4xdouble_idx(ptr %src, ptr %dst, double %in, i32 %idx) nounwind {
; CHECK-LABEL: insert_4xdouble_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -96
-; CHECK-NEXT: st.d $ra, $sp, 88 # 8-byte Folded Spill
-; CHECK-NEXT: st.d $fp, $sp, 80 # 8-byte Folded Spill
-; CHECK-NEXT: addi.d $fp, $sp, 96
-; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
-; CHECK-NEXT: xvld $xr1, $a0, 0
-; CHECK-NEXT: xvst $xr1, $sp, 32
-; CHECK-NEXT: addi.d $a0, $sp, 32
-; CHECK-NEXT: bstrins.d $a0, $a2, 4, 3
-; CHECK-NEXT: fst.d $fa0, $a0, 0
-; CHECK-NEXT: xvld $xr0, $sp, 32
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
+; CHECK-NEXT: pcalau12i $a3, %pc_hi20(.LCPI13_0)
+; CHECK-NEXT: xvld $xr1, $a3, %pc_lo12(.LCPI13_0)
+; CHECK-NEXT: xvld $xr2, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a2, 31, 0
+; CHECK-NEXT: xvreplgr2vr.d $xr3, $a0
+; CHECK-NEXT: xvseq.d $xr1, $xr3, $xr1
+; CHECK-NEXT: xvreplve0.d $xr0, $xr0
+; CHECK-NEXT: xvbitsel.v $xr0, $xr2, $xr0, $xr1
; CHECK-NEXT: xvst $xr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $fp, -96
-; CHECK-NEXT: ld.d $fp, $sp, 80 # 8-byte Folded Reload
-; CHECK-NEXT: ld.d $ra, $sp, 88 # 8-byte Folded Reload
-; CHECK-NEXT: addi.d $sp, $sp, 96
; CHECK-NEXT: ret
%v = load volatile <4 x double>, ptr %src
%v_new = insertelement <4 x double> %v, double %in, i32 %idx
diff --git a/llvm/test/CodeGen/LoongArch/lsx/ir-instruction/insertelement.ll b/llvm/test/CodeGen/LoongArch/lsx/ir-instruction/insertelement.ll
index c73252bd1335f..4bb1941724dc6 100644
--- a/llvm/test/CodeGen/LoongArch/lsx/ir-instruction/insertelement.ll
+++ b/llvm/test/CodeGen/LoongArch/lsx/ir-instruction/insertelement.ll
@@ -84,15 +84,15 @@ define void @insert_2xdouble(ptr %src, ptr %dst, double %ins) nounwind {
define void @insert_16xi8_idx(ptr %src, ptr %dst, i8 %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_16xi8_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr0, $a0, 0
-; CHECK-NEXT: vst $vr0, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a3, 3, 0
-; CHECK-NEXT: st.b $a2, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI6_0)
+; CHECK-NEXT: vld $vr0, $a4, %pc_lo12(.LCPI6_0)
+; CHECK-NEXT: vld $vr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: vreplgr2vr.b $vr2, $a0
+; CHECK-NEXT: vseq.b $vr0, $vr2, $vr0
+; CHECK-NEXT: vreplgr2vr.b $vr2, $a2
+; CHECK-NEXT: vbitsel.v $vr0, $vr1, $vr2, $vr0
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <16 x i8>, ptr %src
%v_new = insertelement <16 x i8> %v, i8 %ins, i32 %idx
@@ -103,15 +103,15 @@ define void @insert_16xi8_idx(ptr %src, ptr %dst, i8 %ins, i32 %idx) nounwind {
define void @insert_8xi16_idx(ptr %src, ptr %dst, i16 %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_8xi16_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr0, $a0, 0
-; CHECK-NEXT: vst $vr0, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a3, 3, 1
-; CHECK-NEXT: st.h $a2, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI7_0)
+; CHECK-NEXT: vld $vr0, $a4, %pc_lo12(.LCPI7_0)
+; CHECK-NEXT: vld $vr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: vreplgr2vr.h $vr2, $a0
+; CHECK-NEXT: vseq.h $vr0, $vr2, $vr0
+; CHECK-NEXT: vreplgr2vr.h $vr2, $a2
+; CHECK-NEXT: vbitsel.v $vr0, $vr1, $vr2, $vr0
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <8 x i16>, ptr %src
%v_new = insertelement <8 x i16> %v, i16 %ins, i32 %idx
@@ -122,15 +122,15 @@ define void @insert_8xi16_idx(ptr %src, ptr %dst, i16 %ins, i32 %idx) nounwind {
define void @insert_4xi32_idx(ptr %src, ptr %dst, i32 %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_4xi32_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr0, $a0, 0
-; CHECK-NEXT: vst $vr0, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a3, 3, 2
-; CHECK-NEXT: st.w $a2, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI8_0)
+; CHECK-NEXT: vld $vr0, $a4, %pc_lo12(.LCPI8_0)
+; CHECK-NEXT: vld $vr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: vreplgr2vr.w $vr2, $a0
+; CHECK-NEXT: vseq.w $vr0, $vr2, $vr0
+; CHECK-NEXT: vreplgr2vr.w $vr2, $a2
+; CHECK-NEXT: vbitsel.v $vr0, $vr1, $vr2, $vr0
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <4 x i32>, ptr %src
%v_new = insertelement <4 x i32> %v, i32 %ins, i32 %idx
@@ -141,15 +141,15 @@ define void @insert_4xi32_idx(ptr %src, ptr %dst, i32 %ins, i32 %idx) nounwind {
define void @insert_2xi64_idx(ptr %src, ptr %dst, i64 %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_2xi64_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr0, $a0, 0
-; CHECK-NEXT: vst $vr0, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a3, 3, 3
-; CHECK-NEXT: st.d $a2, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: pcalau12i $a4, %pc_hi20(.LCPI9_0)
+; CHECK-NEXT: vld $vr0, $a4, %pc_lo12(.LCPI9_0)
+; CHECK-NEXT: vld $vr1, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a3, 31, 0
+; CHECK-NEXT: vreplgr2vr.d $vr2, $a0
+; CHECK-NEXT: vseq.d $vr0, $vr2, $vr0
+; CHECK-NEXT: vreplgr2vr.d $vr2, $a2
+; CHECK-NEXT: vbitsel.v $vr0, $vr1, $vr2, $vr0
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <2 x i64>, ptr %src
%v_new = insertelement <2 x i64> %v, i64 %ins, i32 %idx
@@ -160,15 +160,16 @@ define void @insert_2xi64_idx(ptr %src, ptr %dst, i64 %ins, i32 %idx) nounwind {
define void @insert_4xfloat_idx(ptr %src, ptr %dst, float %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_4xfloat_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr1, $a0, 0
-; CHECK-NEXT: vst $vr1, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a2, 3, 2
-; CHECK-NEXT: fst.s $fa0, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $vr0
+; CHECK-NEXT: pcalau12i $a3, %pc_hi20(.LCPI10_0)
+; CHECK-NEXT: vld $vr1, $a3, %pc_lo12(.LCPI10_0)
+; CHECK-NEXT: vld $vr2, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a2, 31, 0
+; CHECK-NEXT: vreplgr2vr.w $vr3, $a0
+; CHECK-NEXT: vseq.w $vr1, $vr3, $vr1
+; CHECK-NEXT: vreplvei.w $vr0, $vr0, 0
+; CHECK-NEXT: vbitsel.v $vr0, $vr2, $vr0, $vr1
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <4 x float>, ptr %src
%v_new = insertelement <4 x float> %v, float %ins, i32 %idx
@@ -179,15 +180,16 @@ define void @insert_4xfloat_idx(ptr %src, ptr %dst, float %ins, i32 %idx) nounwi
define void @insert_2xdouble_idx(ptr %src, ptr %dst, double %ins, i32 %idx) nounwind {
; CHECK-LABEL: insert_2xdouble_idx:
; CHECK: # %bb.0:
-; CHECK-NEXT: addi.d $sp, $sp, -16
-; CHECK-NEXT: vld $vr1, $a0, 0
-; CHECK-NEXT: vst $vr1, $sp, 0
-; CHECK-NEXT: addi.d $a0, $sp, 0
-; CHECK-NEXT: bstrins.d $a0, $a2, 3, 3
-; CHECK-NEXT: fst.d $fa0, $a0, 0
-; CHECK-NEXT: vld $vr0, $sp, 0
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
+; CHECK-NEXT: pcalau12i $a3, %pc_hi20(.LCPI11_0)
+; CHECK-NEXT: vld $vr1, $a3, %pc_lo12(.LCPI11_0)
+; CHECK-NEXT: vld $vr2, $a0, 0
+; CHECK-NEXT: bstrpick.d $a0, $a2, 31, 0
+; CHECK-NEXT: vreplgr2vr.d $vr3, $a0
+; CHECK-NEXT: vseq.d $vr1, $vr3, $vr1
+; CHECK-NEXT: vreplvei.d $vr0, $vr0, 0
+; CHECK-NEXT: vbitsel.v $vr0, $vr2, $vr0, $vr1
; CHECK-NEXT: vst $vr0, $a1, 0
-; CHECK-NEXT: addi.d $sp, $sp, 16
; CHECK-NEXT: ret
%v = load volatile <2 x double>, ptr %src
%v_new = insertelement <2 x double> %v, double %ins, i32 %idx
``````````
</details>
https://github.com/llvm/llvm-project/pull/151131
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