[SPIRV][libc] Introduce SPIR-V target for 'libc'

[VyacheslavLevytskyy]

This is to introduce SPIR-V target for the GPU C library.

[github-actions]

⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff HEAD~1 HEAD --extensions h,cpp -- clang/lib/Headers/spirvintrin.h libc/benchmarks/gpu/timing/spirv64/timing.h libc/src/math/spirv64/acos.cpp libc/src/math/spirv64/acosf.cpp libc/src/math/spirv64/acosh.cpp libc/src/math/spirv64/acoshf.cpp libc/src/math/spirv64/asin.cpp libc/src/math/spirv64/asinf.cpp libc/src/math/spirv64/asinh.cpp libc/src/math/spirv64/asinhf.cpp libc/src/math/spirv64/atan.cpp libc/src/math/spirv64/atan2.cpp libc/src/math/spirv64/atan2f.cpp libc/src/math/spirv64/atanf.cpp libc/src/math/spirv64/atanh.cpp libc/src/math/spirv64/atanhf.cpp libc/src/math/spirv64/ceil.cpp libc/src/math/spirv64/ceilf.cpp libc/src/math/spirv64/copysign.cpp libc/src/math/spirv64/copysignf.cpp libc/src/math/spirv64/cos.cpp libc/src/math/spirv64/cosf.cpp libc/src/math/spirv64/cosh.cpp libc/src/math/spirv64/coshf.cpp libc/src/math/spirv64/declarations.h libc/src/math/spirv64/erf.cpp libc/src/math/spirv64/erff.cpp libc/src/math/spirv64/exp.cpp libc/src/math/spirv64/exp10.cpp libc/src/math/spirv64/exp10f.cpp libc/src/math/spirv64/exp2.cpp libc/src/math/spirv64/exp2f.cpp libc/src/math/spirv64/expf.cpp libc/src/math/spirv64/expm1.cpp libc/src/math/spirv64/expm1f.cpp libc/src/math/spirv64/fabs.cpp libc/src/math/spirv64/fabsf.cpp libc/src/math/spirv64/fdim.cpp libc/src/math/spirv64/fdimf.cpp libc/src/math/spirv64/floor.cpp libc/src/math/spirv64/floorf.cpp libc/src/math/spirv64/fma.cpp libc/src/math/spirv64/fmaf.cpp libc/src/math/spirv64/fmax.cpp libc/src/math/spirv64/fmaxf.cpp libc/src/math/spirv64/fmin.cpp libc/src/math/spirv64/fminf.cpp libc/src/math/spirv64/fmod.cpp libc/src/math/spirv64/fmodf.cpp libc/src/math/spirv64/frexp.cpp libc/src/math/spirv64/frexpf.cpp libc/src/math/spirv64/hypot.cpp libc/src/math/spirv64/hypotf.cpp libc/src/math/spirv64/ilogb.cpp libc/src/math/spirv64/ilogbf.cpp libc/src/math/spirv64/ldexp.cpp libc/src/math/spirv64/ldexpf.cpp libc/src/math/spirv64/lgamma.cpp libc/src/math/spirv64/lgamma_r.cpp libc/src/math/spirv64/llrint.cpp libc/src/math/spirv64/llrintf.cpp libc/src/math/spirv64/log.cpp libc/src/math/spirv64/log10.cpp libc/src/math/spirv64/log10f.cpp libc/src/math/spirv64/log1p.cpp libc/src/math/spirv64/log1pf.cpp libc/src/math/spirv64/log2.cpp libc/src/math/spirv64/log2f.cpp libc/src/math/spirv64/logb.cpp libc/src/math/spirv64/logbf.cpp libc/src/math/spirv64/logf.cpp libc/src/math/spirv64/lrint.cpp libc/src/math/spirv64/lrintf.cpp libc/src/math/spirv64/nearbyint.cpp libc/src/math/spirv64/nearbyintf.cpp libc/src/math/spirv64/nextafter.cpp libc/src/math/spirv64/nextafterf.cpp libc/src/math/spirv64/platform.h libc/src/math/spirv64/powf.cpp libc/src/math/spirv64/powi.cpp libc/src/math/spirv64/powif.cpp libc/src/math/spirv64/remainder.cpp libc/src/math/spirv64/remainderf.cpp libc/src/math/spirv64/remquo.cpp libc/src/math/spirv64/remquof.cpp libc/src/math/spirv64/rint.cpp libc/src/math/spirv64/rintf.cpp libc/src/math/spirv64/round.cpp libc/src/math/spirv64/roundf.cpp libc/src/math/spirv64/scalbn.cpp libc/src/math/spirv64/scalbnf.cpp libc/src/math/spirv64/sin.cpp libc/src/math/spirv64/sincos.cpp libc/src/math/spirv64/sincosf.cpp libc/src/math/spirv64/sinf.cpp libc/src/math/spirv64/sinh.cpp libc/src/math/spirv64/sinhf.cpp libc/src/math/spirv64/sqrt.cpp libc/src/math/spirv64/sqrtf.cpp libc/src/math/spirv64/tan.cpp libc/src/math/spirv64/tanf.cpp libc/src/math/spirv64/tanh.cpp libc/src/math/spirv64/tanhf.cpp libc/src/math/spirv64/tgamma.cpp libc/src/math/spirv64/tgammaf.cpp libc/src/math/spirv64/trunc.cpp libc/src/math/spirv64/truncf.cpp libc/startup/gpu/spirv64/start.cpp clang/lib/Headers/gpuintrin.h libc/benchmarks/gpu/timing/timing.h libc/include/llvm-libc-macros/math-macros.h libc/include/llvm-libc-macros/signal-macros.h libc/include/llvm-libc-macros/time-macros.h libc/include/llvm-libc-types/fenv_t.h libc/shared/rpc_util.h libc/src/__support/macros/properties/architectures.h libc/src/__support/macros/properties/cpu_features.h libc/src/__support/time/gpu/time_utils.h

View the diff from clang-format here.

diff --git a/libc/src/math/spirv64/declarations.h b/libc/src/math/spirv64/declarations.h
index 24fa43f2b..437a5b592 100644
--- a/libc/src/math/spirv64/declarations.h
+++ b/libc/src/math/spirv64/declarations.h
@@ -13,8 +13,7 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
-extern "C" {
-}
+extern "C" {}
 
 } // namespace LIBC_NAMESPACE_DECL
 
diff --git a/libc/src/math/spirv64/platform.h b/libc/src/math/spirv64/platform.h
index 68639ef3f..7044747d1 100644
--- a/libc/src/math/spirv64/platform.h
+++ b/libc/src/math/spirv64/platform.h
@@ -67,7 +67,9 @@ LIBC_INLINE long lrintf(float x) { return __builtin_lrintf(x); }
 LIBC_INLINE double nextafter(double x, double y) {
   return __builtin_nextafter(x, y);
 }
-LIBC_INLINE float nextafterf(float x, float y) { return __builtin_nextafterf(x, y); }
+LIBC_INLINE float nextafterf(float x, float y) {
+  return __builtin_nextafterf(x, y);
+}
 LIBC_INLINE double pow(double x, double y) { return __builtin_pow(x, y); }
 LIBC_INLINE float powf(float x, float y) { return __builtin_powf(x, y); }
 LIBC_INLINE double sin(double x) { return __builtin_sin(x); }
diff --git a/libc/src/math/spirv64/powf.cpp b/libc/src/math/spirv64/powf.cpp
index 3cc6ab15f..7b99922b5 100644
--- a/libc/src/math/spirv64/powf.cpp
+++ b/libc/src/math/spirv64/powf.cpp
@@ -14,6 +14,8 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
-LLVM_LIBC_FUNCTION(float, powf, (float x, float y)) { return __builtin_powf(x, y); }
+LLVM_LIBC_FUNCTION(float, powf, (float x, float y)) {
+  return __builtin_powf(x, y);
+}
 
 } // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/spirv64/powi.cpp b/libc/src/math/spirv64/powi.cpp
index a1601743f..d3cd53f94 100644
--- a/libc/src/math/spirv64/powi.cpp
+++ b/libc/src/math/spirv64/powi.cpp
@@ -14,6 +14,8 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
-LLVM_LIBC_FUNCTION(double, powi, (double x, int y)) { return __builtin_powi(x, y); }
+LLVM_LIBC_FUNCTION(double, powi, (double x, int y)) {
+  return __builtin_powi(x, y);
+}
 
 } // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/spirv64/powif.cpp b/libc/src/math/spirv64/powif.cpp
index dfe40b6aa..7580a9aca 100644
--- a/libc/src/math/spirv64/powif.cpp
+++ b/libc/src/math/spirv64/powif.cpp
@@ -14,6 +14,8 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
-LLVM_LIBC_FUNCTION(float, powif, (float x, int y)) { return __builtin_powif(x, y); }
+LLVM_LIBC_FUNCTION(float, powif, (float x, int y)) {
+  return __builtin_powif(x, y);
+}
 
 } // namespace LIBC_NAMESPACE_DECL