LoongArch: Set FMAXNUM and FMINNUM as Legal (#139010)

Now we define FMAXNUM and FMINNUM as IEEE754-2008 with +0.0>-0.0.
LoongArch's fmax/fmin just follow this rules full.

FMAXNUM_IEEE and FMINNUM_IEEE will be removed in future once:

Fixes FMAXNUM/FMINNUM for all targets
The use of FMAXNUM_IEEE/FMINNUM_IEEE are not used by middle end anymore.

5 files changed, 48 insertions, 94 deletions

diff --git a/llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td b/llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td
index 65802d6..d5a5f17 100644
--- a/llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td
+++ b/llvm/lib/Target/LoongArch/LoongArchFloat32InstrInfo.td
@@ -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>;
diff --git a/llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td b/llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td
index b980256..c5d1765 100644
--- a/llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td
+++ b/llvm/lib/Target/LoongArch/LoongArchFloat64InstrInfo.td
@@ -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>;
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index 258891a..b729b4e 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -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);
diff --git a/llvm/test/CodeGen/LoongArch/fp-max-min.ll b/llvm/test/CodeGen/LoongArch/fp-max-min.ll
index 9bf3e6c..967c366 100644
--- a/llvm/test/CodeGen/LoongArch/fp-max-min.ll
+++ b/llvm/test/CodeGen/LoongArch/fp-max-min.ll
@@ -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)
diff --git a/llvm/test/CodeGen/LoongArch/ir-instruction/atomicrmw-fp.ll b/llvm/test/CodeGen/LoongArch/ir-instruction/atomicrmw-fp.ll
index caded4b..f47f79d 100644
--- a/llvm/test/CodeGen/LoongArch/ir-instruction/atomicrmw-fp.ll
+++ b/llvm/test/CodeGen/LoongArch/ir-instruction/atomicrmw-fp.ll
@@ -152,8 +152,7 @@ define float @float_fmin_acquire(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB2_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB2_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB2_3: # %atomicrmw.start
@@ -185,8 +184,7 @@ define float @float_fmin_acquire(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB2_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB2_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB2_3: # %atomicrmw.start
@@ -224,8 +222,7 @@ define float @float_fmax_acquire(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB3_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB3_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB3_3: # %atomicrmw.start
@@ -257,8 +254,7 @@ define float @float_fmax_acquire(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB3_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB3_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB3_3: # %atomicrmw.start
@@ -478,9 +474,8 @@ define double @double_fmin_acquire(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB6_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmin.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmin.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -551,9 +546,8 @@ define double @double_fmax_acquire(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB7_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmax.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -725,8 +719,7 @@ define float @float_fmin_release(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB10_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB10_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB10_3: # %atomicrmw.start
@@ -758,8 +751,7 @@ define float @float_fmin_release(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB10_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB10_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB10_3: # %atomicrmw.start
@@ -797,8 +789,7 @@ define float @float_fmax_release(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB11_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB11_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB11_3: # %atomicrmw.start
@@ -830,8 +821,7 @@ define float @float_fmax_release(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB11_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB11_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB11_3: # %atomicrmw.start
@@ -1051,9 +1041,8 @@ define double @double_fmin_release(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB14_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmin.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmin.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -1124,9 +1113,8 @@ define double @double_fmax_release(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB15_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmax.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -1298,8 +1286,7 @@ define float @float_fmin_acq_rel(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB18_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB18_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB18_3: # %atomicrmw.start
@@ -1331,8 +1318,7 @@ define float @float_fmin_acq_rel(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB18_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB18_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB18_3: # %atomicrmw.start
@@ -1370,8 +1356,7 @@ define float @float_fmax_acq_rel(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB19_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB19_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB19_3: # %atomicrmw.start
@@ -1403,8 +1388,7 @@ define float @float_fmax_acq_rel(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB19_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB19_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB19_3: # %atomicrmw.start
@@ -1624,9 +1608,8 @@ define double @double_fmin_acq_rel(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB22_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmin.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmin.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -1697,9 +1680,8 @@ define double @double_fmax_acq_rel(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB23_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmax.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -1871,8 +1853,7 @@ define float @float_fmin_seq_cst(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB26_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB26_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB26_3: # %atomicrmw.start
@@ -1904,8 +1885,7 @@ define float @float_fmin_seq_cst(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB26_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB26_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB26_3: # %atomicrmw.start
@@ -1943,8 +1923,7 @@ define float @float_fmax_seq_cst(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB27_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB27_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB27_3: # %atomicrmw.start
@@ -1976,8 +1955,7 @@ define float @float_fmax_seq_cst(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB27_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB27_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB27_3: # %atomicrmw.start
@@ -2197,9 +2175,8 @@ define double @double_fmin_seq_cst(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB30_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmin.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmin.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -2270,9 +2247,8 @@ define double @double_fmax_seq_cst(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB31_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmax.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -2444,8 +2420,7 @@ define float @float_fmin_monotonic(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB34_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB34_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB34_3: # %atomicrmw.start
@@ -2477,8 +2452,7 @@ define float @float_fmin_monotonic(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB34_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB34_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmin.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmin.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB34_3: # %atomicrmw.start
@@ -2516,8 +2490,7 @@ define float @float_fmax_monotonic(ptr %p) nounwind {
 ; LA64F-NEXT:  .LBB35_1: # %atomicrmw.start
 ; LA64F-NEXT:    # =>This Loop Header: Depth=1
 ; LA64F-NEXT:    # Child Loop BB35_3 Depth 2
-; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64F-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64F-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64F-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64F-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64F-NEXT:  .LBB35_3: # %atomicrmw.start
@@ -2549,8 +2522,7 @@ define float @float_fmax_monotonic(ptr %p) nounwind {
 ; LA64D-NEXT:  .LBB35_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Loop Header: Depth=1
 ; LA64D-NEXT:    # Child Loop BB35_3 Depth 2
-; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa0
-; LA64D-NEXT:    fmax.s $fa2, $fa2, $fa1
+; LA64D-NEXT:    fmax.s $fa2, $fa0, $fa1
 ; LA64D-NEXT:    movfr2gr.s $a1, $fa2
 ; LA64D-NEXT:    movfr2gr.s $a2, $fa0
 ; LA64D-NEXT:  .LBB35_3: # %atomicrmw.start
@@ -2770,9 +2742,8 @@ define double @double_fmin_monotonic(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB38_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmin.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmin.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8
@@ -2843,9 +2814,8 @@ define double @double_fmax_monotonic(ptr %p) nounwind {
 ; LA64D-NEXT:    .p2align 4, , 16
 ; LA64D-NEXT:  .LBB39_1: # %atomicrmw.start
 ; LA64D-NEXT:    # =>This Inner Loop Header: Depth=1
-; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa0
-; LA64D-NEXT:    vldi $vr2, -912
-; LA64D-NEXT:    fmax.d $fa1, $fa1, $fa2
+; LA64D-NEXT:    vldi $vr1, -912
+; LA64D-NEXT:    fmax.d $fa1, $fa0, $fa1
 ; LA64D-NEXT:    fst.d $fa0, $sp, 8
 ; LA64D-NEXT:    fst.d $fa1, $sp, 0
 ; LA64D-NEXT:    ori $a0, $zero, 8