Revert "[flang][cuda] Handle floats in atomiccas (#128970)"
This reverts commit 110b77f32859f39d253623153a37671f5601de65.
diff --git a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
index 9a10ce9..537c817 100644
--- a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
+++ b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
@@ -2734,20 +2734,6 @@
mlir::Value arg1 = args[1];
mlir::Value arg2 = args[2];
-
- auto bitCastFloat = [&](mlir::Value arg) -> mlir::Value {
- if (mlir::isa<mlir::Float32Type>(arg.getType()))
- return builder.create<mlir::LLVM::BitcastOp>(loc, builder.getI32Type(),
- arg);
- if (mlir::isa<mlir::Float64Type>(arg.getType()))
- return builder.create<mlir::LLVM::BitcastOp>(loc, builder.getI64Type(),
- arg);
- return arg;
- };
-
- arg1 = bitCastFloat(arg1);
- arg2 = bitCastFloat(arg2);
-
if (arg1.getType() != arg2.getType()) {
// arg1 and arg2 need to have the same type in AtomicCmpXchgOp.
arg2 = builder.createConvert(loc, arg1.getType(), arg2);
diff --git a/flang/test/Lower/CUDA/cuda-device-proc.cuf b/flang/test/Lower/CUDA/cuda-device-proc.cuf
index c651d34..f2b4eb5 100644
--- a/flang/test/Lower/CUDA/cuda-device-proc.cuf
+++ b/flang/test/Lower/CUDA/cuda-device-proc.cuf
@@ -175,26 +175,3 @@
! CHECK: %[[VAL:.*]] = fir.convert %c14{{.*}} : (i32) -> i64
! CHECK: %[[ADDR:.*]] = builtin.unrealized_conversion_cast %{{.*}}#1 : !fir.ref<i64> to !llvm.ptr
! CHECK: llvm.cmpxchg %{{.*}}, %{{.*}}, %[[VAL]] acq_rel monotonic : !llvm.ptr, i64
-
-attributes(device) subroutine testAtomic3()
- real :: a, i, istat
- istat = atomiccas(a, i, 14.0)
-end subroutine
-
-! CHECK-LABEL: func.func @_QPtestatomic3()
-! CHECK: %[[BCAST1:.*]] = llvm.bitcast %{{.*}} : f32 to i32
-! CHECK: %[[BCAST2:.*]] = llvm.bitcast %{{.*}} : f32 to i32
-! CHECK: %[[CAST:.*]] = builtin.unrealized_conversion_cast %{{.*}}#1 : !fir.ref<f32> to !llvm.ptr
-! CHECK: llvm.cmpxchg %[[CAST]], %[[BCAST1]], %[[BCAST2]] acq_rel monotonic : !llvm.ptr, i32
-
-attributes(device) subroutine testAtomic4()
- real(8) :: a, i, istat
- istat = atomiccas(a, i, 14.0d0)
-end subroutine
-
-! CHECK-LABEL: func.func @_QPtestatomic4()
-! CHECK: %[[BCAST1:.*]] = llvm.bitcast %{{.*}} : f64 to i64
-! CHECK: %[[BCAST2:.*]] = llvm.bitcast %{{.*}} : f64 to i64
-! CHECK: %[[CAST:.*]] = builtin.unrealized_conversion_cast %{{.*}}#1 : !fir.ref<f64> to !llvm.ptr
-! CHECK: %[[ATOMIC:.*]] = llvm.cmpxchg %[[CAST]], %[[BCAST1]], %[[BCAST2]] acq_rel monotonic : !llvm.ptr, i64
-! CHECK: %[[RES:.*]] = llvm.extractvalue %[[ATOMIC]][1] : !llvm.struct<(i64, i1)>
