introduce SPIR-V target for 'libc'

Author: VyacheslavLevytskyy

libc/benchmarks/gpu/timing/CMakeLists.txt

@@ -1,4 +1,4 @@
-foreach(target nvptx amdgpu)
+foreach(target nvptx amdgpu spirv64)
   add_subdirectory(${target})
   list(APPEND target_gpu_timing libc.benchmarks.gpu.timing.${target}.${target}_timing)
 endforeach()

libc/benchmarks/gpu/timing/timing.h

@@ -15,6 +15,8 @@
 #include "amdgpu/timing.h"
 #elif defined(LIBC_TARGET_ARCH_IS_NVPTX)
 #include "nvptx/timing.h"
+#elif defined(LIBC_TARGET_ARCH_IS_SPIRV)
+#include "spirv64/timing.h"
 #else
 #error "unsupported platform"
 #endif

libc/cmake/modules/LLVMLibCArchitectures.cmake

@@ -73,7 +73,8 @@ function(get_arch_and_system_from_triple triple arch_var sys_var)
 
   # Setting OS name for GPU architectures.
   list(GET triple_comps -1 gpu_target_sys)
-  if(gpu_target_sys MATCHES "^amdhsa" OR gpu_target_sys MATCHES "^cuda")
+  if(gpu_target_sys MATCHES "^amdhsa" OR gpu_target_sys MATCHES "^cuda" OR
+     gpu_target_sys MATCHES "^opencl")
     set(target_sys "gpu")
   endif()
 

libc/include/llvm-libc-macros/math-macros.h

@@ -42,7 +42,8 @@
 #define FP_LLOGBNAN LONG_MAX
 #endif
 
-#if defined(__NVPTX__) || defined(__AMDGPU__) || defined(__FAST_MATH__)
+#if defined(__NVPTX__) || defined(__AMDGPU__) || defined(__SPIRV__) ||         \
+    defined(__FAST_MATH__)
 #define math_errhandling 0
 #elif defined(__NO_MATH_ERRNO__)
 #define math_errhandling (MATH_ERREXCEPT)

libc/include/llvm-libc-macros/signal-macros.h

@@ -11,7 +11,7 @@
 
 #if defined(__linux__)
 #include "linux/signal-macros.h"
-#elif defined(__NVPTX__) || defined(__AMDGPU__)
+#elif defined(__NVPTX__) || defined(__AMDGPU__) || defined(__SPIRV__)
 #include "gpu/signal-macros.h"
 #endif
 

libc/include/llvm-libc-macros/time-macros.h

@@ -1,7 +1,7 @@
 #ifndef LLVM_LIBC_MACROS_TIME_MACROS_H
 #define LLVM_LIBC_MACROS_TIME_MACROS_H
 
-#if defined(__AMDGPU__) || defined(__NVPTX__)
+#if defined(__AMDGPU__) || defined(__NVPTX__) || defined(__SPIRV__)
 #include "gpu/time-macros.h"
 #elif defined(__linux__)
 #include "linux/time-macros.h"

libc/include/llvm-libc-types/fenv_t.h

@@ -25,7 +25,7 @@ typedef struct {
 } fenv_t;
 #elif defined(__riscv)
 typedef unsigned int fenv_t;
-#elif defined(__AMDGPU__) || defined(__NVPTX__)
+#elif defined(__AMDGPU__) || defined(__NVPTX__) || defined(__SPIRV__)
 typedef struct {
   unsigned int __fpc;
 } fenv_t;

libc/shared/rpc_util.h

@@ -12,7 +12,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#if (defined(__NVPTX__) || defined(__AMDGPU__)) &&                             \
+#if (defined(__NVPTX__) || defined(__AMDGPU__) || defined(__SPIRV__)) &&       \
     !((defined(__CUDA__) && !defined(__CUDA_ARCH__)) ||                        \
       (defined(__HIP__) && !defined(__HIP_DEVICE_COMPILE__)))
 #include <gpuintrin.h>

libc/src/__support/macros/properties/architectures.h

@@ -17,7 +17,12 @@
 #define LIBC_TARGET_ARCH_IS_NVPTX
 #endif
 
-#if defined(LIBC_TARGET_ARCH_IS_NVPTX) || defined(LIBC_TARGET_ARCH_IS_AMDGPU)
+#if defined(__SPIRV__)
+#define LIBC_TARGET_ARCH_IS_SPIRV
+#endif
+
+#if defined(LIBC_TARGET_ARCH_IS_NVPTX) ||                                      \
+    defined(LIBC_TARGET_ARCH_IS_AMDGPU) || defined(LIBC_TARGET_ARCH_IS_SPIRV)
 #define LIBC_TARGET_ARCH_IS_GPU
 #endif
 

libc/src/__support/macros/properties/cpu_features.h

@@ -75,13 +75,14 @@
 #endif // LIBC_TARGET_CPU_HAS_RISCV_FPU_DOUBLE
 #endif // __riscv_flen
 
-#if defined(__NVPTX__) || defined(__AMDGPU__)
+#if defined(__NVPTX__) || defined(__AMDGPU__) || defined(__SPIRV__)
 #define LIBC_TARGET_CPU_HAS_FPU_FLOAT
 #define LIBC_TARGET_CPU_HAS_FPU_DOUBLE
 #endif
 
 #if defined(__ARM_FEATURE_FMA) || (defined(__AVX2__) && defined(__FMA__)) ||   \
-    defined(__NVPTX__) || defined(__AMDGPU__) || defined(__LIBC_RISCV_USE_FMA)
+    defined(__NVPTX__) || defined(__AMDGPU__) || defined(__SPIRV__) ||         \
+    defined(__LIBC_RISCV_USE_FMA)
 #define LIBC_TARGET_CPU_HAS_FMA
 // Provide a more fine-grained control of FMA instruction for ARM targets.
 #if defined(LIBC_TARGET_CPU_HAS_FPU_HALF)