diff --git a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
index 178b6770d6b53..679ed735ccd64 100644
--- a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
+++ b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
@@ -2645,16 +2645,18 @@ mlir::Value IntrinsicLibrary::genAbs(mlir::Type resultType,
 // ACOSD
 mlir::Value IntrinsicLibrary::genAcosd(mlir::Type resultType,
                                        llvm::ArrayRef<mlir::Value> args) {
+  // maps ACOSD to ACOS * 180 / pi
   assert(args.size() == 1);
   mlir::MLIRContext *context = builder.getContext();
   mlir::FunctionType ftype =
       mlir::FunctionType::get(context, {resultType}, {args[0].getType()});
+  mlir::Value result =
+      getRuntimeCallGenerator("acos", ftype)(builder, loc, {args[0]});
   llvm::APFloat pi = llvm::APFloat(llvm::numbers::pi);
   mlir::Value dfactor = builder.createRealConstant(
-      loc, mlir::Float64Type::get(context), pi / llvm::APFloat(180.0));
+      loc, mlir::Float64Type::get(context), llvm::APFloat(180.0) / pi);
   mlir::Value factor = builder.createConvert(loc, args[0].getType(), dfactor);
-  mlir::Value arg = builder.create<mlir::arith::MulFOp>(loc, args[0], factor);
-  return getRuntimeCallGenerator("acos", ftype)(builder, loc, {arg});
+  return builder.create<mlir::arith::MulFOp>(loc, result, factor);
 }
 
 // ADJUSTL & ADJUSTR
@@ -2796,16 +2798,18 @@ IntrinsicLibrary::genAny(mlir::Type resultType,
 // ASIND
 mlir::Value IntrinsicLibrary::genAsind(mlir::Type resultType,
                                        llvm::ArrayRef<mlir::Value> args) {
+  // maps ASIND to ASIN * 180 / pi
   assert(args.size() == 1);
   mlir::MLIRContext *context = builder.getContext();
   mlir::FunctionType ftype =
       mlir::FunctionType::get(context, {resultType}, {args[0].getType()});
+  mlir::Value result =
+      getRuntimeCallGenerator("asin", ftype)(builder, loc, {args[0]});
   llvm::APFloat pi = llvm::APFloat(llvm::numbers::pi);
   mlir::Value dfactor = builder.createRealConstant(
-      loc, mlir::Float64Type::get(context), pi / llvm::APFloat(180.0));
+      loc, mlir::Float64Type::get(context), llvm::APFloat(180.0) / pi);
   mlir::Value factor = builder.createConvert(loc, args[0].getType(), dfactor);
-  mlir::Value arg = builder.create<mlir::arith::MulFOp>(loc, args[0], factor);
-  return getRuntimeCallGenerator("asin", ftype)(builder, loc, {arg});
+  return builder.create<mlir::arith::MulFOp>(loc, result, factor);
 }
 
 // ATAND, ATAN2D
diff --git a/flang/test/Lower/Intrinsics/acosd.f90 b/flang/test/Lower/Intrinsics/acosd.f90
index 3f558d66c35a1..7dfa28fd6494e 100644
--- a/flang/test/Lower/Intrinsics/acosd.f90
+++ b/flang/test/Lower/Intrinsics/acosd.f90
@@ -1,5 +1,3 @@
-! RUN: bbc -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK"
-! RUN: bbc --math-runtime=precise -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-PRECISE"
 ! RUN: %flang_fc1 -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK"
 
 function test_real4(x)
@@ -8,10 +6,10 @@ function test_real4(x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real4
-! CHECK: %[[dfactor:.*]] = arith.constant 0.017453292519943295 : f64
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[result:.*]] = math.acos %{{.*}} fastmath<contract> : f32
 ! CHECK: %[[factor:.*]] = fir.convert %[[dfactor]] : (f64) -> f32
-! CHECK: %[[arg:.*]] = arith.mulf %{{[A-Za-z0-9._]+}}, %[[factor]] fastmath<contract> : f32
-! CHECK-PRECISE: %{{.*}} = fir.call @acosf(%[[arg]]) fastmath<contract> : (f32) -> f32
+! CHECK: %[[arg:.*]] = arith.mulf %[[result]], %[[factor]] fastmath<contract> : f32
 
 function test_real8(x)
   real(8) :: x, test_real8
@@ -19,6 +17,6 @@ function test_real8(x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real8
-! CHECK: %[[factor:.*]] = arith.constant 0.017453292519943295 : f64
-! CHECK: %[[arg:.*]] = arith.mulf %{{[A-Za-z0-9._]+}}, %[[factor]] fastmath<contract> : f64
-! CHECK-PRECISE: %{{.*}} = fir.call @acos(%[[arg]]) fastmath<contract> : (f64) -> f64
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[result:.*]] = math.acos %{{.*}} fastmath<contract> : f64
+! CHECK: %[[arg:.*]] = arith.mulf %[[result]], %[[dfactor]] fastmath<contract> : f64
diff --git a/flang/test/Lower/Intrinsics/asind.f90 b/flang/test/Lower/Intrinsics/asind.f90
index e03f2e5598555..564fa955fa969 100644
--- a/flang/test/Lower/Intrinsics/asind.f90
+++ b/flang/test/Lower/Intrinsics/asind.f90
@@ -1,5 +1,3 @@
-! RUN: bbc -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK"
-! RUN: bbc --math-runtime=precise -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-PRECISE"
 ! RUN: %flang_fc1 -emit-fir %s -o - | FileCheck %s --check-prefixes="CHECK"
 
 function test_real4(x)
@@ -8,10 +6,10 @@ function test_real4(x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real4
-! CHECK: %[[dfactor:.*]] = arith.constant 0.017453292519943295 : f64
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[result:.*]] = math.asin %{{.*}} fastmath<contract> : f32
 ! CHECK: %[[factor:.*]] = fir.convert %[[dfactor]] : (f64) -> f32
-! CHECK: %[[arg:.*]] = arith.mulf %{{[A-Za-z0-9._]+}}, %[[factor]] fastmath<contract> : f32
-! CHECK-PRECISE: %{{.*}} = fir.call @asinf(%[[arg]]) fastmath<contract> : (f32) -> f32
+! CHECK: %[[arg:.*]] = arith.mulf %[[result]], %[[factor]] fastmath<contract> : f32
 
 function test_real8(x)
   real(8) :: x, test_real8
@@ -19,6 +17,6 @@ function test_real8(x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real8
-! CHECK: %[[factor:.*]] = arith.constant 0.017453292519943295 : f64
-! CHECK: %[[arg:.*]] = arith.mulf %{{[A-Za-z0-9._]+}}, %[[factor]] fastmath<contract> : f64
-! CHECK-PRECISE: %{{.*}} = fir.call @asin(%[[arg]]) fastmath<contract> : (f64) -> f64
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[result:.*]] = math.asin %{{.*}} fastmath<contract> : f64
+! CHECK: %[[arg:.*]] = arith.mulf %[[result]], %[[dfactor]] fastmath<contract> : f64