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[LoongArch][LASX] Fix fptosi/fptoui from <4 x float> to <4 x i64> #214621

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Merged
wangleiat merged 1 commit into from
Aug 10, 2026
+12 −10
Merged

[LoongArch][LASX] Fix fptosi/fptoui from <4 x float> to <4 x i64> #214621

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13 changes: 7 additions & 6 deletions llvm/lib/Target/LoongArch/LoongArchLASXInstrInfo.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2165,9 +2165,9 @@ def : Pat<(v8f32 (loongarch_vffint_s_l (v4i64 LASX256:$xj), (v4i64 LASX256:$xk))
// XVFTINTRZ_{W_S/L_D}
def : Pat<(v8i32 (fp_to_sint v8f32:$vj)), (XVFTINTRZ_W_S v8f32:$vj)>;
def : Pat<(v4i64 (fp_to_sint v4f64:$vj)), (XVFTINTRZ_L_D v4f64:$vj)>;
def : Pat<(v4i64(fp_to_sint v4f32:$vj)), (VEXT2XV_D_W(SUBREG_TO_REG
(VFTINTRZ_W_S v4f32:$vj),
sub_128))>;
def : Pat<(v4i64 (fp_to_sint v4f32:$vj)),
(XVFTINTRZL_L_S
(XVPERMI_D (SUBREG_TO_REG v4f32:$vj, sub_128), 216))>;
def : Pat<(v4i32(fp_to_sint v4f64:$vj)),
(EXTRACT_SUBREG(XVPICKEV_W(XVPERMI_D(XVFTINTRZ_L_D v4f64:$vj), 238),
(XVFTINTRZ_L_D v4f64:$vj)),
Expand All @@ -2176,9 +2176,10 @@ def : Pat<(v4i32(fp_to_sint v4f64:$vj)),
// XVFTINTRZ_{W_SU/L_DU}
def : Pat<(v8i32 (fp_to_uint v8f32:$vj)), (XVFTINTRZ_WU_S v8f32:$vj)>;
def : Pat<(v4i64 (fp_to_uint v4f64:$vj)), (XVFTINTRZ_LU_D v4f64:$vj)>;
def : Pat<(v4i64(fp_to_uint v4f32:$vj)), (VEXT2XV_DU_WU(SUBREG_TO_REG
(VFTINTRZ_WU_S v4f32:$vj),
sub_128))>;
def : Pat<(v4i64 (fp_to_uint v4f32:$vj)),
(XVFTINTRZ_LU_D
(XVFCVTL_D_S
(XVPERMI_D (SUBREG_TO_REG v4f32:$vj, sub_128), 216)))>;
def : Pat<(v4i32(fp_to_uint v4f64:$vj)),
(EXTRACT_SUBREG(XVPICKEV_W(XVPERMI_D(XVFTINTRZ_LU_D v4f64:$vj), 238),
(XVFTINTRZ_LU_D v4f64:$vj)),
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4 changes: 2 additions & 2 deletions llvm/test/CodeGen/LoongArch/lasx/ir-instruction/fptosi.ll
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Expand Up @@ -61,8 +61,8 @@ define void @fptosi_v4f32_v4i64(ptr %res, ptr %in){
; CHECK-LABEL: fptosi_v4f32_v4i64:
; CHECK: # %bb.0:
; CHECK-NEXT: vld $vr0, $a1, 0
; CHECK-NEXT: vftintrz.w.s $vr0, $vr0
; CHECK-NEXT: vext2xv.d.w $xr0, $xr0
; CHECK-NEXT: xvpermi.d $xr0, $xr0, 216
; CHECK-NEXT: xvftintrzl.l.s $xr0, $xr0
; CHECK-NEXT: xvst $xr0, $a0, 0
; CHECK-NEXT: ret
%v0 = load <4 x float>, ptr %in
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5 changes: 3 additions & 2 deletions llvm/test/CodeGen/LoongArch/lasx/ir-instruction/fptoui.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -67,8 +67,9 @@ define void @fptoui_v4f32_v4i64(ptr %res, ptr %in){
; CHECK-LABEL: fptoui_v4f32_v4i64:
; CHECK: # %bb.0:
; CHECK-NEXT: vld $vr0, $a1, 0
; CHECK-NEXT: vftintrz.wu.s $vr0, $vr0
; CHECK-NEXT: vext2xv.du.wu $xr0, $xr0
; CHECK-NEXT: xvpermi.d $xr0, $xr0, 216
; CHECK-NEXT: xvfcvtl.d.s $xr0, $xr0
; CHECK-NEXT: xvftintrz.lu.d $xr0, $xr0
; CHECK-NEXT: xvst $xr0, $a0, 0
; CHECK-NEXT: ret
%v0 = load <4 x float>, ptr %in
Expand Down
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