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LoongArch: Set FMAXNUM and FMINNUM as Legal #139010

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Merged
merged 2 commits into from
May 9, 2025
Merged

LoongArch: Set FMAXNUM and FMINNUM as Legal #139010

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LoongArch: Set FMAXNUM and FMINNUM as Legal
wzssyqa May 8, 2025
1144f3e
Update testcase
wzssyqa May 8, 2025
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2 changes: 2 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td
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Original file line number Diff line number Diff line change
@@ -172,7 +172,9 @@ def : PatFprFpr<fmul, FMUL_S, FPR32>;
def : PatFprFpr<fdiv, FDIV_S, FPR32>;
def : PatFprFpr<fcopysign, FCOPYSIGN_S, FPR32>;
def : PatFprFpr<fmaxnum_ieee, FMAX_S, FPR32>;
def : PatFprFpr<fmaxnum, FMAX_S, FPR32>;
def : PatFprFpr<fminnum_ieee, FMIN_S, FPR32>;
def : PatFprFpr<fminnum, FMIN_S, FPR32>;
def : PatFpr<fneg, FNEG_S, FPR32>;
def : PatFpr<fabs, FABS_S, FPR32>;
def : PatFpr<fsqrt, FSQRT_S, FPR32>;
2 changes: 2 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td
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Original file line number Diff line number Diff line change
@@ -140,7 +140,9 @@ def : PatFprFpr<fmul, FMUL_D, FPR64>;
def : PatFprFpr<fdiv, FDIV_D, FPR64>;
def : PatFprFpr<fcopysign, FCOPYSIGN_D, FPR64>;
def : PatFprFpr<fmaxnum_ieee, FMAX_D, FPR64>;
def : PatFprFpr<fmaxnum, FMAX_D, FPR64>;
def : PatFprFpr<fminnum_ieee, FMIN_D, FPR64>;
def : PatFprFpr<fminnum, FMIN_D, FPR64>;
def : PatFpr<fneg, FNEG_D, FPR64>;
def : PatFpr<fabs, FABS_D, FPR64>;
def : PatFpr<fsqrt, FSQRT_D, FPR64>;
4 changes: 4 additions & 0 deletions llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
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Original file line number Diff line number Diff line change
@@ -176,7 +176,9 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::BR_CC, MVT::f32, Expand);
setOperationAction(ISD::FMA, MVT::f32, Legal);
setOperationAction(ISD::FMINNUM_IEEE, MVT::f32, Legal);
setOperationAction(ISD::FMINNUM, MVT::f32, Legal);
setOperationAction(ISD::FMAXNUM_IEEE, MVT::f32, Legal);
setOperationAction(ISD::FMAXNUM, MVT::f32, Legal);
setOperationAction(ISD::STRICT_FSETCCS, MVT::f32, Legal);
setOperationAction(ISD::STRICT_FSETCC, MVT::f32, Legal);
setOperationAction(ISD::IS_FPCLASS, MVT::f32, Legal);
@@ -215,7 +217,9 @@ LoongArchTargetLowering::LoongArchTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::STRICT_FSETCC, MVT::f64, Legal);
setOperationAction(ISD::FMA, MVT::f64, Legal);
setOperationAction(ISD::FMINNUM_IEEE, MVT::f64, Legal);
setOperationAction(ISD::FMINNUM, MVT::f64, Legal);
setOperationAction(ISD::FMAXNUM_IEEE, MVT::f64, Legal);
setOperationAction(ISD::FMAXNUM, MVT::f64, Legal);
setOperationAction(ISD::IS_FPCLASS, MVT::f64, Legal);
setOperationAction(ISD::FSIN, MVT::f64, Expand);
setOperationAction(ISD::FCOS, MVT::f64, Expand);
24 changes: 0 additions & 24 deletions llvm/test/CodeGen/LoongArch/fp-max-min.ll
View file
Original file line number Diff line number Diff line change
@@ -12,29 +12,21 @@ declare double @llvm.minnum.f64(double, double)
define float @maxnum_float(float %x, float %y) {
; LA32F-LABEL: maxnum_float:
; LA32F: # %bb.0:
; LA32F-NEXT: fmax.s $fa1, $fa1, $fa1
; LA32F-NEXT: fmax.s $fa0, $fa0, $fa0
; LA32F-NEXT: fmax.s $fa0, $fa0, $fa1
; LA32F-NEXT: ret
;
; LA32D-LABEL: maxnum_float:
; LA32D: # %bb.0:
; LA32D-NEXT: fmax.s $fa1, $fa1, $fa1
; LA32D-NEXT: fmax.s $fa0, $fa0, $fa0
; LA32D-NEXT: fmax.s $fa0, $fa0, $fa1
; LA32D-NEXT: ret
;
; LA64F-LABEL: maxnum_float:
; LA64F: # %bb.0:
; LA64F-NEXT: fmax.s $fa1, $fa1, $fa1
; LA64F-NEXT: fmax.s $fa0, $fa0, $fa0
; LA64F-NEXT: fmax.s $fa0, $fa0, $fa1
; LA64F-NEXT: ret
;
; LA64D-LABEL: maxnum_float:
; LA64D: # %bb.0:
; LA64D-NEXT: fmax.s $fa1, $fa1, $fa1
; LA64D-NEXT: fmax.s $fa0, $fa0, $fa0
; LA64D-NEXT: fmax.s $fa0, $fa0, $fa1
; LA64D-NEXT: ret
%z = call float @llvm.maxnum.f32(float %x, float %y)
@@ -55,8 +47,6 @@ define double @maxnum_double(double %x, double %y) {
;
; LA32D-LABEL: maxnum_double:
; LA32D: # %bb.0:
; LA32D-NEXT: fmax.d $fa1, $fa1, $fa1
; LA32D-NEXT: fmax.d $fa0, $fa0, $fa0
; LA32D-NEXT: fmax.d $fa0, $fa0, $fa1
; LA32D-NEXT: ret
;
@@ -74,8 +64,6 @@ define double @maxnum_double(double %x, double %y) {
;
; LA64D-LABEL: maxnum_double:
; LA64D: # %bb.0:
; LA64D-NEXT: fmax.d $fa1, $fa1, $fa1
; LA64D-NEXT: fmax.d $fa0, $fa0, $fa0
; LA64D-NEXT: fmax.d $fa0, $fa0, $fa1
; LA64D-NEXT: ret
%z = call double @llvm.maxnum.f64(double %x, double %y)
@@ -85,29 +73,21 @@ define double @maxnum_double(double %x, double %y) {
define float @minnum_float(float %x, float %y) {
; LA32F-LABEL: minnum_float:
; LA32F: # %bb.0:
; LA32F-NEXT: fmax.s $fa1, $fa1, $fa1
; LA32F-NEXT: fmax.s $fa0, $fa0, $fa0
; LA32F-NEXT: fmin.s $fa0, $fa0, $fa1
; LA32F-NEXT: ret
;
; LA32D-LABEL: minnum_float:
; LA32D: # %bb.0:
; LA32D-NEXT: fmax.s $fa1, $fa1, $fa1
; LA32D-NEXT: fmax.s $fa0, $fa0, $fa0
; LA32D-NEXT: fmin.s $fa0, $fa0, $fa1
; LA32D-NEXT: ret
;
; LA64F-LABEL: minnum_float:
; LA64F: # %bb.0:
; LA64F-NEXT: fmax.s $fa1, $fa1, $fa1
; LA64F-NEXT: fmax.s $fa0, $fa0, $fa0
; LA64F-NEXT: fmin.s $fa0, $fa0, $fa1
; LA64F-NEXT: ret
;
; LA64D-LABEL: minnum_float:
; LA64D: # %bb.0:
; LA64D-NEXT: fmax.s $fa1, $fa1, $fa1
; LA64D-NEXT: fmax.s $fa0, $fa0, $fa0
; LA64D-NEXT: fmin.s $fa0, $fa0, $fa1
; LA64D-NEXT: ret
%z = call float @llvm.minnum.f32(float %x, float %y)
@@ -128,8 +108,6 @@ define double @minnum_double(double %x, double %y) {
;
; LA32D-LABEL: minnum_double:
; LA32D: # %bb.0:
; LA32D-NEXT: fmax.d $fa1, $fa1, $fa1
; LA32D-NEXT: fmax.d $fa0, $fa0, $fa0
; LA32D-NEXT: fmin.d $fa0, $fa0, $fa1
; LA32D-NEXT: ret
;
@@ -147,8 +125,6 @@ define double @minnum_double(double %x, double %y) {
;
; LA64D-LABEL: minnum_double:
; LA64D: # %bb.0:
; LA64D-NEXT: fmax.d $fa1, $fa1, $fa1
; LA64D-NEXT: fmax.d $fa0, $fa0, $fa0
; LA64D-NEXT: fmin.d $fa0, $fa0, $fa1
; LA64D-NEXT: ret
%z = call double @llvm.minnum.f64(double %x, double %y)
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