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[LoongArch] Lowering flog2 to flogb #162978

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[LoongArch] Lowering flog2 to flogb #162978

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1 change: 1 addition & 0 deletions llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td
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Expand Up @@ -188,6 +188,7 @@ def : PatFprFpr<fminnum, FMIN_S, FPR32>;
def : PatFpr<fneg, FNEG_S, FPR32>;
def : PatFpr<fabs, FABS_S, FPR32>;
def : PatFpr<fsqrt, FSQRT_S, FPR32>;
def : PatFpr<flog2, FLOGB_S, FPR32>;
def : Pat<(fdiv fpimm1, (fsqrt FPR32:$fj)), (FRSQRT_S FPR32:$fj)>;
let Predicates = [HasBasicF, IsLA64] in {
def : Pat<(fdiv (loongarch_movgr2fr_w_la64 (i64 1065353216)), (fsqrt FPR32:$fj)),
Expand Down
1 change: 1 addition & 0 deletions llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td
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Expand Up @@ -161,6 +161,7 @@ def : PatFprFpr<fminnum, FMIN_D, FPR64>;
def : PatFpr<fneg, FNEG_D, FPR64>;
def : PatFpr<fabs, FABS_D, FPR64>;
def : PatFpr<fsqrt, FSQRT_D, FPR64>;
def : PatFpr<flog2, FLOGB_D, FPR64>;
def : Pat<(fdiv fpimm1, (fsqrt FPR64:$fj)), (FRSQRT_D FPR64:$fj)>;
let Predicates = [IsLA32] in {
def : Pat<(fdiv (loongarch_movgr2fr_d_lo_hi (i32 0), (i32 1072693248)),
Expand Down
4 changes: 4 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
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Expand Up @@ -231,6 +231,7 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::STRICT_FSETCCS, MVT::f32, Legal);
setOperationAction(ISD::STRICT_FSETCC, MVT::f32, Legal);
setOperationAction(ISD::IS_FPCLASS, MVT::f32, Legal);
setOperationAction(ISD::FLOG2, MVT::f32, Legal);
setOperationAction(ISD::FSIN, MVT::f32, Expand);
setOperationAction(ISD::FCOS, MVT::f32, Expand);
setOperationAction(ISD::FSINCOS, MVT::f32, Expand);
Expand Down Expand Up @@ -279,6 +280,7 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::FCANONICALIZE, MVT::f64, Legal);
setOperationAction(ISD::FMAXNUM, MVT::f64, Legal);
setOperationAction(ISD::IS_FPCLASS, MVT::f64, Legal);
setOperationAction(ISD::FLOG2, MVT::f64, Legal);
setOperationAction(ISD::FSIN, MVT::f64, Expand);
setOperationAction(ISD::FCOS, MVT::f64, Expand);
setOperationAction(ISD::FSINCOS, MVT::f64, Expand);
Expand Down Expand Up @@ -362,6 +364,7 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::FMA, VT, Legal);
setOperationAction(ISD::FSQRT, VT, Legal);
setOperationAction(ISD::FNEG, VT, Legal);
setOperationAction(ISD::FLOG2, VT, Legal);
setCondCodeAction({ISD::SETGE, ISD::SETGT, ISD::SETOGE, ISD::SETOGT,
ISD::SETUGE, ISD::SETUGT},
VT, Expand);
Expand Down Expand Up @@ -443,6 +446,7 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::FMA, VT, Legal);
setOperationAction(ISD::FSQRT, VT, Legal);
setOperationAction(ISD::FNEG, VT, Legal);
setOperationAction(ISD::FLOG2, VT, Legal);
setCondCodeAction({ISD::SETGE, ISD::SETGT, ISD::SETOGE, ISD::SETOGT,
ISD::SETUGE, ISD::SETUGT},
VT, Expand);
Expand Down
3 changes: 3 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td
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Expand Up @@ -1593,6 +1593,9 @@ def : Pat<(fma_nsz (fneg v4f64:$xj), v4f64:$xk, v4f64:$xa),
// XVFSQRT_{S/D}
defm : PatXrF<fsqrt, "XVFSQRT">;

// XVFLOGB_{S/D}
defm : PatXrF<flog2, "XVFLOGB">;

// XVRECIP_{S/D}
def : Pat<(fdiv vsplatf32_fpimm_eq_1, v8f32:$xj),
(XVFRECIP_S v8f32:$xj)>;
Expand Down
3 changes: 3 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchLSXInstrInfo.td
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Expand Up @@ -1783,6 +1783,9 @@ def : Pat<(fma_nsz (fneg v2f64:$vj), v2f64:$vk, v2f64:$va),
// VFSQRT_{S/D}
defm : PatVrF<fsqrt, "VFSQRT">;

// VFLOGB_{S/D}
defm : PatVrF<flog2, "VFLOGB">;

// VFRECIP_{S/D}
def : Pat<(fdiv vsplatf32_fpimm_eq_1, v4f32:$vj),
(VFRECIP_S v4f32:$vj)>;
Expand Down
28 changes: 10 additions & 18 deletions llvm/test/CodeGen/LoongArch/ir-instruction/flog2.ll
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@@ -1,32 +1,24 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc --mtriple=loongarch32 --mattr=+d < %s | FileCheck %s --check-prefix=LA32
; RUN: llc --mtriple=loongarch64 --mattr=+d < %s | FileCheck %s --check-prefix=LA64
; RUN: llc --mtriple=loongarch32 --mattr=+d < %s | FileCheck %s
; RUN: llc --mtriple=loongarch64 --mattr=+d < %s | FileCheck %s

declare float @llvm.log2.f32(float)
declare double @llvm.log2.f64(double)

define float @flog2_s(float %x) nounwind {
; LA32-LABEL: flog2_s:
; LA32: # %bb.0:
; LA32-NEXT: b log2f
;
; LA64-LABEL: flog2_s:
; LA64: # %bb.0:
; LA64-NEXT: pcaddu18i $t8, %call36(log2f)
; LA64-NEXT: jr $t8
; CHECK-LABEL: flog2_s:
; CHECK: # %bb.0:
; CHECK-NEXT: flogb.s $fa0, $fa0
; CHECK-NEXT: ret
%y = call float @llvm.log2.f32(float %x)
ret float %y
}

define double @flog2_d(double %x) nounwind {
; LA32-LABEL: flog2_d:
; LA32: # %bb.0:
; LA32-NEXT: b log2
;
; LA64-LABEL: flog2_d:
; LA64: # %bb.0:
; LA64-NEXT: pcaddu18i $t8, %call36(log2)
; LA64-NEXT: jr $t8
; CHECK-LABEL: flog2_d:
; CHECK: # %bb.0:
; CHECK-NEXT: flogb.d $fa0, $fa0
; CHECK-NEXT: ret
%y = call double @llvm.log2.f64(double %x)
ret double %y
}
258 changes: 14 additions & 244 deletions llvm/test/CodeGen/LoongArch/lasx/ir-instruction/flog2.ll
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@@ -1,166 +1,17 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx < %s | FileCheck %s --check-prefix=LA32
; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s --check-prefix=LA64
; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lasx < %s | FileCheck %s
; RUN: llc --mtriple=loongarch64 --mattr=+lasx < %s | FileCheck %s

declare <8 x float> @llvm.log2.v8f32(<8 x float>)
declare <4 x double> @llvm.log2.v4f64(<4 x double>)

define void @flog2_v8f32(ptr %res, ptr %a) nounwind {
; LA32-LABEL: flog2_v8f32:
; LA32: # %bb.0: # %entry
; LA32-NEXT: addi.w $sp, $sp, -128
; LA32-NEXT: st.w $ra, $sp, 124 # 4-byte Folded Spill
; LA32-NEXT: st.w $fp, $sp, 120 # 4-byte Folded Spill
; LA32-NEXT: xvld $xr0, $a1, 0
; LA32-NEXT: xvst $xr0, $sp, 80 # 32-byte Folded Spill
; LA32-NEXT: move $fp, $a0
; LA32-NEXT: xvpickve.w $xr0, $xr0, 5
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: vst $vr0, $sp, 48 # 16-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 4
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $xr0
; LA32-NEXT: vld $vr1, $sp, 48 # 16-byte Folded Reload
; LA32-NEXT: vextrins.w $vr0, $vr1, 16
; LA32-NEXT: xvst $xr0, $sp, 48 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 6
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: xvld $xr1, $sp, 48 # 32-byte Folded Reload
; LA32-NEXT: vextrins.w $vr1, $vr0, 32
; LA32-NEXT: xvst $xr1, $sp, 48 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 7
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: xvld $xr1, $sp, 48 # 32-byte Folded Reload
; LA32-NEXT: vextrins.w $vr1, $vr0, 48
; LA32-NEXT: xvst $xr1, $sp, 48 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 1
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: vst $vr0, $sp, 16 # 16-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 0
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $xr0
; LA32-NEXT: vld $vr1, $sp, 16 # 16-byte Folded Reload
; LA32-NEXT: vextrins.w $vr0, $vr1, 16
; LA32-NEXT: xvst $xr0, $sp, 16 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 2
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: xvld $xr1, $sp, 16 # 32-byte Folded Reload
; LA32-NEXT: vextrins.w $vr1, $vr0, 32
; LA32-NEXT: xvst $xr1, $sp, 16 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.w $xr0, $xr0, 3
; LA32-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA32-NEXT: bl log2f
; LA32-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA32-NEXT: xvld $xr1, $sp, 16 # 32-byte Folded Reload
; LA32-NEXT: vextrins.w $vr1, $vr0, 48
; LA32-NEXT: xvld $xr0, $sp, 48 # 32-byte Folded Reload
; LA32-NEXT: xvpermi.q $xr1, $xr0, 2
; LA32-NEXT: xvst $xr1, $fp, 0
; LA32-NEXT: ld.w $fp, $sp, 120 # 4-byte Folded Reload
; LA32-NEXT: ld.w $ra, $sp, 124 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 128
; LA32-NEXT: ret
;
; LA64-LABEL: flog2_v8f32:
; LA64: # %bb.0: # %entry
; LA64-NEXT: addi.d $sp, $sp, -128
; LA64-NEXT: st.d $ra, $sp, 120 # 8-byte Folded Spill
; LA64-NEXT: st.d $fp, $sp, 112 # 8-byte Folded Spill
; LA64-NEXT: xvld $xr0, $a1, 0
; LA64-NEXT: xvst $xr0, $sp, 80 # 32-byte Folded Spill
; LA64-NEXT: move $fp, $a0
; LA64-NEXT: xvpickve.w $xr0, $xr0, 5
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: vst $vr0, $sp, 48 # 16-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 4
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $xr0
; LA64-NEXT: vld $vr1, $sp, 48 # 16-byte Folded Reload
; LA64-NEXT: vextrins.w $vr0, $vr1, 16
; LA64-NEXT: xvst $xr0, $sp, 48 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 6
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: xvld $xr1, $sp, 48 # 32-byte Folded Reload
; LA64-NEXT: vextrins.w $vr1, $vr0, 32
; LA64-NEXT: xvst $xr1, $sp, 48 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 7
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: xvld $xr1, $sp, 48 # 32-byte Folded Reload
; LA64-NEXT: vextrins.w $vr1, $vr0, 48
; LA64-NEXT: xvst $xr1, $sp, 48 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 1
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: vst $vr0, $sp, 16 # 16-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 0
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $xr0
; LA64-NEXT: vld $vr1, $sp, 16 # 16-byte Folded Reload
; LA64-NEXT: vextrins.w $vr0, $vr1, 16
; LA64-NEXT: xvst $xr0, $sp, 16 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 2
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: xvld $xr1, $sp, 16 # 32-byte Folded Reload
; LA64-NEXT: vextrins.w $vr1, $vr0, 32
; LA64-NEXT: xvst $xr1, $sp, 16 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 80 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.w $xr0, $xr0, 3
; LA64-NEXT: # kill: def $f0 killed $f0 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2f)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0 killed $f0 def $vr0
; LA64-NEXT: xvld $xr1, $sp, 16 # 32-byte Folded Reload
; LA64-NEXT: vextrins.w $vr1, $vr0, 48
; LA64-NEXT: xvld $xr0, $sp, 48 # 32-byte Folded Reload
; LA64-NEXT: xvpermi.q $xr1, $xr0, 2
; LA64-NEXT: xvst $xr1, $fp, 0
; LA64-NEXT: ld.d $fp, $sp, 112 # 8-byte Folded Reload
; LA64-NEXT: ld.d $ra, $sp, 120 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 128
; LA64-NEXT: ret
; CHECK-LABEL: flog2_v8f32:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xvld $xr0, $a1, 0
; CHECK-NEXT: xvflogb.s $xr0, $xr0
; CHECK-NEXT: xvst $xr0, $a0, 0
; CHECK-NEXT: ret
entry:
%v = load <8 x float>, ptr %a
%r = call <8 x float> @llvm.log2.v8f32(<8 x float> %v)
Expand All @@ -169,93 +20,12 @@ entry:
}

define void @flog2_v4f64(ptr %res, ptr %a) nounwind {
; LA32-LABEL: flog2_v4f64:
; LA32: # %bb.0: # %entry
; LA32-NEXT: addi.w $sp, $sp, -112
; LA32-NEXT: st.w $ra, $sp, 108 # 4-byte Folded Spill
; LA32-NEXT: st.w $fp, $sp, 104 # 4-byte Folded Spill
; LA32-NEXT: xvld $xr0, $a1, 0
; LA32-NEXT: xvst $xr0, $sp, 64 # 32-byte Folded Spill
; LA32-NEXT: move $fp, $a0
; LA32-NEXT: xvpickve.d $xr0, $xr0, 3
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA32-NEXT: bl log2
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
; LA32-NEXT: vst $vr0, $sp, 32 # 16-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.d $xr0, $xr0, 2
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA32-NEXT: bl log2
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
; LA32-NEXT: vld $vr1, $sp, 32 # 16-byte Folded Reload
; LA32-NEXT: vextrins.d $vr0, $vr1, 16
; LA32-NEXT: xvst $xr0, $sp, 32 # 32-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.d $xr0, $xr0, 1
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA32-NEXT: bl log2
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
; LA32-NEXT: vst $vr0, $sp, 16 # 16-byte Folded Spill
; LA32-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA32-NEXT: xvpickve.d $xr0, $xr0, 0
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA32-NEXT: bl log2
; LA32-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
; LA32-NEXT: vld $vr1, $sp, 16 # 16-byte Folded Reload
; LA32-NEXT: vextrins.d $vr0, $vr1, 16
; LA32-NEXT: xvld $xr1, $sp, 32 # 32-byte Folded Reload
; LA32-NEXT: xvpermi.q $xr0, $xr1, 2
; LA32-NEXT: xvst $xr0, $fp, 0
; LA32-NEXT: ld.w $fp, $sp, 104 # 4-byte Folded Reload
; LA32-NEXT: ld.w $ra, $sp, 108 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 112
; LA32-NEXT: ret
;
; LA64-LABEL: flog2_v4f64:
; LA64: # %bb.0: # %entry
; LA64-NEXT: addi.d $sp, $sp, -112
; LA64-NEXT: st.d $ra, $sp, 104 # 8-byte Folded Spill
; LA64-NEXT: st.d $fp, $sp, 96 # 8-byte Folded Spill
; LA64-NEXT: xvld $xr0, $a1, 0
; LA64-NEXT: xvst $xr0, $sp, 64 # 32-byte Folded Spill
; LA64-NEXT: move $fp, $a0
; LA64-NEXT: xvpickve.d $xr0, $xr0, 3
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
; LA64-NEXT: vst $vr0, $sp, 32 # 16-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.d $xr0, $xr0, 2
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
; LA64-NEXT: vld $vr1, $sp, 32 # 16-byte Folded Reload
; LA64-NEXT: vextrins.d $vr0, $vr1, 16
; LA64-NEXT: xvst $xr0, $sp, 32 # 32-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.d $xr0, $xr0, 1
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
; LA64-NEXT: vst $vr0, $sp, 16 # 16-byte Folded Spill
; LA64-NEXT: xvld $xr0, $sp, 64 # 32-byte Folded Reload
; LA64-NEXT: xvpickve.d $xr0, $xr0, 0
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 killed $xr0
; LA64-NEXT: pcaddu18i $ra, %call36(log2)
; LA64-NEXT: jirl $ra, $ra, 0
; LA64-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
; LA64-NEXT: vld $vr1, $sp, 16 # 16-byte Folded Reload
; LA64-NEXT: vextrins.d $vr0, $vr1, 16
; LA64-NEXT: xvld $xr1, $sp, 32 # 32-byte Folded Reload
; LA64-NEXT: xvpermi.q $xr0, $xr1, 2
; LA64-NEXT: xvst $xr0, $fp, 0
; LA64-NEXT: ld.d $fp, $sp, 96 # 8-byte Folded Reload
; LA64-NEXT: ld.d $ra, $sp, 104 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 112
; LA64-NEXT: ret
; CHECK-LABEL: flog2_v4f64:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xvld $xr0, $a1, 0
; CHECK-NEXT: xvflogb.d $xr0, $xr0
; CHECK-NEXT: xvst $xr0, $a0, 0
; CHECK-NEXT: ret
entry:
%v = load <4 x double>, ptr %a
%r = call <4 x double> @llvm.log2.v4f64(<4 x double> %v)
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