Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -897,9 +897,13 @@
   HelpText<"Ignore environment variables to detect CUDA installation">;
 def ptxas_path_EQ : Joined<["--"], "ptxas-path=">, Group<i_Group>,
   HelpText<"Path to ptxas (used for compiling CUDA code)">;
+def fgpu_flush_denormals_to_zero : Flag<["-"], "fgpu-flush-denormals-to-zero">,
+  HelpText<"Flush denormal floating point values to zero in CUDA/HIP device mode.">;
+def fno_gpu_flush_denormals_to_zero : Flag<["-"], "fno-gpu-flush-denormals-to-zero">;
 def fcuda_flush_denormals_to_zero : Flag<["-"], "fcuda-flush-denormals-to-zero">,
-  HelpText<"Flush denormal floating point values to zero in CUDA device mode.">;
-def fno_cuda_flush_denormals_to_zero : Flag<["-"], "fno-cuda-flush-denormals-to-zero">;
+  Alias<fgpu_flush_denormals_to_zero>;
+def fno_cuda_flush_denormals_to_zero : Flag<["-"], "fno-cuda-flush-denormals-to-zero">,
+  Alias<fno_gpu_flush_denormals_to_zero>;
 defm gpu_rdc : BoolFOption<"gpu-rdc",
   LangOpts<"GPURelocatableDeviceCode">, DefaultFalse,
   PosFlag<SetTrue, [CC1Option], "Generate relocatable device code, also known as separate compilation mode">,
Index: clang/lib/Driver/ToolChains/AMDGPU.cpp
===================================================================
--- clang/lib/Driver/ToolChains/AMDGPU.cpp
+++ clang/lib/Driver/ToolChains/AMDGPU.cpp
@@ -643,8 +643,8 @@
     auto Arch = getProcessorFromTargetID(getTriple(), JA.getOffloadingArch());
     auto Kind = llvm::AMDGPU::parseArchAMDGCN(Arch);
     if (FPType && FPType == &llvm::APFloat::IEEEsingle() &&
-        DriverArgs.hasFlag(options::OPT_fcuda_flush_denormals_to_zero,
-                           options::OPT_fno_cuda_flush_denormals_to_zero,
+        DriverArgs.hasFlag(options::OPT_fgpu_flush_denormals_to_zero,
+                           options::OPT_fno_gpu_flush_denormals_to_zero,
                            getDefaultDenormsAreZeroForTarget(Kind)))
       return llvm::DenormalMode::getPreserveSign();
 
Index: clang/lib/Driver/ToolChains/Cuda.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Cuda.cpp
+++ clang/lib/Driver/ToolChains/Cuda.cpp
@@ -763,9 +763,8 @@
     const llvm::fltSemantics *FPType) const {
   if (JA.getOffloadingDeviceKind() == Action::OFK_Cuda) {
     if (FPType && FPType == &llvm::APFloat::IEEEsingle() &&
-        DriverArgs.hasFlag(options::OPT_fcuda_flush_denormals_to_zero,
-                           options::OPT_fno_cuda_flush_denormals_to_zero,
-                           false))
+        DriverArgs.hasFlag(options::OPT_fgpu_flush_denormals_to_zero,
+                           options::OPT_fno_gpu_flush_denormals_to_zero, false))
       return llvm::DenormalMode::getPreserveSign();
   }
 
Index: clang/lib/Driver/ToolChains/HIP.cpp
===================================================================
--- clang/lib/Driver/ToolChains/HIP.cpp
+++ clang/lib/Driver/ToolChains/HIP.cpp
@@ -400,8 +400,8 @@
     // If --hip-device-lib is not set, add the default bitcode libraries.
     // TODO: There are way too many flags that change this. Do we need to check
     // them all?
-    bool DAZ = DriverArgs.hasFlag(options::OPT_fcuda_flush_denormals_to_zero,
-                                  options::OPT_fno_cuda_flush_denormals_to_zero,
+    bool DAZ = DriverArgs.hasFlag(options::OPT_fgpu_flush_denormals_to_zero,
+                                  options::OPT_fno_gpu_flush_denormals_to_zero,
                                   getDefaultDenormsAreZeroForTarget(Kind));
     // TODO: Check standard C++ flags?
     bool FiniteOnly = false;
Index: clang/test/CodeGenCUDA/flush-denormals.cu
===================================================================
--- clang/test/CodeGenCUDA/flush-denormals.cu
+++ clang/test/CodeGenCUDA/flush-denormals.cu
@@ -27,7 +27,7 @@
 // Checks that device function calls get emitted with the "denormal-fp-math-f32"
 // attribute set when we compile CUDA device code with
 // -fdenormal-fp-math-f32. Further, check that we reflect the presence or
-// absence of -fcuda-flush-denormals-to-zero in a module flag.
+// absence of -fgpu-flush-denormals-to-zero in a module flag.
 
 // AMDGCN targets always have f64/f16 denormals enabled.
 //
@@ -36,7 +36,7 @@
 //
 // For AMDGCN target with fast FMAF (e.g. gfx900), it has ieee denormals by
 // default and preserve-sign when there with the option
-// -fcuda-flush-denormals-to-zero.
+// -fgpu-flush-denormals-to-zero.
 
 // CHECK-LABEL: define void @foo() #0
 extern "C" __device__ void foo() {}
Index: clang/test/Driver/cuda-flush-denormals-to-zero.cu
===================================================================
--- clang/test/Driver/cuda-flush-denormals-to-zero.cu
+++ clang/test/Driver/cuda-flush-denormals-to-zero.cu
@@ -1,22 +1,26 @@
 // Checks that cuda compilation does the right thing when passed
-// -fcuda-flush-denormals-to-zero. This should be translated to
+// -fgpu-flush-denormals-to-zero. This should be translated to
 // -fdenormal-fp-math-f32=preserve-sign
 
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_20 -fgpu-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=FTZ %s
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_20 -fno-gpu-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_70 -fgpu-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=FTZ %s
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_70 -fno-gpu-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+
+// Test alias options -f[no-]cuda-flush-denormals-to-zero
 // RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_20 -fcuda-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=FTZ %s
 // RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_20 -fno-cuda-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
-// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_70 -fcuda-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=FTZ %s
-// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=sm_70 -fno-cuda-flush-denormals-to-zero -nocudainc -nocudalib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
 
 // Test explicit argument, with CUDA offload kind
-// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fcuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
-// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fno-cuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fgpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
+// RUN: %clang -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fno-gpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
 
 // Test explicit argument, with HIP offload kind
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fcuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fno-cuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fgpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -fno-gpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
 
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx900 -fcuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx900 -fno-cuda-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx900 -fgpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx900 -fno-gpu-flush-denormals-to-zero -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
 
 // Test the default changing with no argument based on the subtarget in HIP mode
 // RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZ %s
@@ -27,8 +31,8 @@
 
 // Test multiple offload archs with different defaults.
 // RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell --cuda-gpu-arch=gfx803 --cuda-gpu-arch=gfx900 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=MIXED-DEFAULT-MODE %s
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell -fcuda-flush-denormals-to-zero --cuda-gpu-arch=gfx803 --cuda-gpu-arch=gfx900 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZX2 %s
-// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell -fno-cuda-flush-denormals-to-zero --cuda-gpu-arch=gfx803 --cuda-gpu-arch=gfx900 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell -fgpu-flush-denormals-to-zero --cuda-gpu-arch=gfx803 --cuda-gpu-arch=gfx900 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=FTZX2 %s
+// RUN: %clang -x hip -no-canonical-prefixes -### -target x86_64-linux-gnu -c -march=haswell -fno-gpu-flush-denormals-to-zero --cuda-gpu-arch=gfx803 --cuda-gpu-arch=gfx900 -nocudainc -nogpulib %s 2>&1 | FileCheck -check-prefix=NOFTZ %s
 
 
 // CPUFTZ-NOT: -fdenormal-fp-math
Index: clang/test/Driver/hip-device-libs.hip
===================================================================
--- clang/test/Driver/hip-device-libs.hip
+++ clang/test/Driver/hip-device-libs.hip
@@ -24,7 +24,7 @@
 // Test explicit flag, opposite of target default.
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx900 \
-// RUN:   -fcuda-flush-denormals-to-zero \
+// RUN:   -fgpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,FLUSHD
@@ -33,7 +33,7 @@
 // Test explicit flag, opposite of target default.
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx803 \
-// RUN:   -fno-cuda-flush-denormals-to-zero \
+// RUN:   -fno-gpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,NOFLUSHD
@@ -42,7 +42,7 @@
 // Test explicit flag, same as target default.
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx900 \
-// RUN:   -fno-cuda-flush-denormals-to-zero \
+// RUN:   -fno-gpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,NOFLUSHD
@@ -51,7 +51,7 @@
 // Test explicit flag, same as target default.
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx803 \
-// RUN:   -fcuda-flush-denormals-to-zero \
+// RUN:   -fgpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,FLUSHD
@@ -60,7 +60,7 @@
 // Test last flag wins, not flushing
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx803 \
-// RUN:   -fcuda-flush-denormals-to-zero -fno-cuda-flush-denormals-to-zero \
+// RUN:   -fgpu-flush-denormals-to-zero -fno-gpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,NOFLUSHD
@@ -68,7 +68,7 @@
 
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx900 \
-// RUN:   -fcuda-flush-denormals-to-zero -fno-cuda-flush-denormals-to-zero \
+// RUN:   -fgpu-flush-denormals-to-zero -fno-gpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm   \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,NOFLUSHD
@@ -76,7 +76,7 @@
 
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx900 \
-// RUN:   -fno-cuda-flush-denormals-to-zero -fcuda-flush-denormals-to-zero \
+// RUN:   -fno-gpu-flush-denormals-to-zero -fgpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm   \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,FLUSHD
@@ -84,7 +84,7 @@
 
 // RUN: %clang -### -target x86_64-linux-gnu \
 // RUN:   --cuda-gpu-arch=gfx803 \
-// RUN:   -fno-cuda-flush-denormals-to-zero -fcuda-flush-denormals-to-zero \
+// RUN:   -fno-gpu-flush-denormals-to-zero -fgpu-flush-denormals-to-zero \
 // RUN:   --rocm-path=%S/Inputs/rocm \
 // RUN:   %S/Inputs/hip_multiple_inputs/b.hip \
 // RUN: 2>&1 | FileCheck %s --check-prefixes=ALL,FLUSHD