https://github.com/fineg74 updated 
https://github.com/llvm/llvm-project/pull/192139

>From c4d129764ec2423657f0e8186f55f64aef3c119a Mon Sep 17 00:00:00 2001
From: "Fine, Gregory" <[email protected]>
Date: Tue, 14 Apr 2026 13:03:18 -0700
Subject: [PATCH 1/3] Introduce openmp wrappers for SPIRV backend

---
 clang/lib/Headers/CMakeLists.txt              |   1 +
 .../__clang_spirv_libdevice_declares.h        |  18 +
 clang/lib/Headers/__clang_spirv_math.h        | 688 ++++++++++++++++++
 clang/lib/Headers/openmp_wrappers/math.h      |  10 +
 4 files changed, 717 insertions(+)
 create mode 100644 clang/lib/Headers/__clang_spirv_math.h

diff --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
index 1bd5bbfc0cdc0..37a21a06643ec 100644
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -145,6 +145,7 @@ set(riscv_files
 set(spirv_files
   __clang_spirv_builtins.h
   __clang_spirv_libdevice_declares.h
+  __clang_spirv_math.h
   )
 
 set(systemz_files
diff --git a/clang/lib/Headers/__clang_spirv_libdevice_declares.h 
b/clang/lib/Headers/__clang_spirv_libdevice_declares.h
index 14c3400f251e9..1b1dda186c104 100644
--- a/clang/lib/Headers/__clang_spirv_libdevice_declares.h
+++ b/clang/lib/Headers/__clang_spirv_libdevice_declares.h
@@ -22,6 +22,19 @@ _Pragma("push_macro(\"bool\")");
 // TODO: Add vector versions of the API in case it is required.
 _CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_s_abs(int);
 _CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_s_abs(long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long long __spirv_ocl_s_abs(long long);
+_CLC_OVERLOAD _CLC_CONSTFN int __spirv_ocl_s_max(int, int);
+_CLC_OVERLOAD _CLC_CONSTFN long __spirv_ocl_s_max(long, long);
+_CLC_OVERLOAD _CLC_CONSTFN long long __spirv_ocl_s_max(long long, long long);
+_CLC_OVERLOAD _CLC_CONSTFN int __spirv_ocl_s_min(int, int);
+_CLC_OVERLOAD _CLC_CONSTFN long __spirv_ocl_s_min(long, long);
+_CLC_OVERLOAD _CLC_CONSTFN long long __spirv_ocl_s_min(long long, long long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_max(unsigned int, 
unsigned int);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_max(unsigned long, 
unsigned long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long long __spirv_ocl_u_max(unsigned long 
long, unsigned long long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_min(unsigned int, 
unsigned int);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_min(unsigned long, 
unsigned long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long long __spirv_ocl_u_min(unsigned long 
long, unsigned long long);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_acos(float);
 _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_acos(double);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_acosh(float);
@@ -138,6 +151,11 @@ _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_tgamma(float);
 _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_tgamma(double);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_trunc(float);
 _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_trunc(double);
+_CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_rint(float);
+_CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_rint(double);
+_CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_fclamp(float, float, float);
+_CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_fclamp(double, double, double);
+
 
 #if defined(__cplusplus)
 } // extern "C"
diff --git a/clang/lib/Headers/__clang_spirv_math.h 
b/clang/lib/Headers/__clang_spirv_math.h
new file mode 100644
index 0000000000000..a336eab41dce2
--- /dev/null
+++ b/clang/lib/Headers/__clang_spirv_math.h
@@ -0,0 +1,688 @@
+/*===---- __clang_spirv_math.h - Device-side HIP math support --------------===
+ *
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM 
Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ *
+ *===-----------------------------------------------------------------------===
+ */
+#ifndef __CLANG_SPIRV_MATH_H__
+#define __CLANG_SPIRV_MATH_H__
+ 
+#if !defined(__SPIRV__) && !defined(__OPENMP_SPIRV__)
+#error "This file is for SPIRV and OpenMP AMDGCN device compilation only."
+#endif
+
+// The __CLANG_GPU_DISABLE_MATH_WRAPPERS macro provides a way to let standard
+// libcalls reach the link step instead of being eagerly replaced.
+#ifndef __CLANG_GPU_DISABLE_MATH_WRAPPERS
+
+// __DEVICE__ is a helper macro with common set of attributes for the wrappers
+// we implement in this file. We need static in order to avoid emitting unused
+// functions and __forceinline__ helps inlining these wrappers at -O1.
+#pragma push_macro("__DEVICE__")
+#ifdef __OPENMP_SPIRV__
+#if defined(__cplusplus)
+#define __DEVICE__ static constexpr __attribute__((always_inline, nothrow))
+#else
+#define __DEVICE__ static __attribute__((always_inline, nothrow))
+#endif
+#else
+#define __DEVICE__ static __device__ __forceinline__
+#endif
+
+__DEVICE__
+float __cosf(float __x) { return __spirv_ocl_cos(__x); }
+__DEVICE__
+float __exp10f(float __x) { return __spirv_ocl_exp10(__x); }
+__DEVICE__
+float __expf(float __x) { return __spirv_ocl_exp(__x); }
+
+__DEVICE__
+float __fadd_rd(float __x, float __y) { 
+  float sum = __x + __y;
+  float rounded = __spirv_ocl_floor(sum);
+  if (rounded > sum)
+    rounded -= 1.0f;
+  return rounded;
+}
+
+__DEVICE__
+float __fadd_rn(float __x, float __y) { return __spirv_ocl_rint(__x + __y); }
+__DEVICE__
+float __fadd_ru(float __x, float __y) { return __spirv_ocl_ceil(__x + __y); }
+__DEVICE__
+float __fadd_rz(float __x, float __y) { return __spirv_ocl_trunc(__x + __y); }
+
+__DEVICE__
+float __fdiv_rd(float __x, float __y) {
+  float res = __x / __y;
+  float rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0f;
+  return rounded;
+}
+__DEVICE__
+float __fdiv_rn(float __x, float __y) { return __spirv_ocl_rint(__x / __y); }
+__DEVICE__
+float __fdiv_ru(float __x, float __y) { return __spirv_ocl_ceil(__x / __y); }
+__DEVICE__
+float __fdiv_rz(float __x, float __y) { return __spirv_ocl_trunc(__x / __y); }
+__DEVICE__
+float __fdividef(float __x, float __y) { return __x / __y; }
+
+__DEVICE__
+float __fmaf_rd(float __x, float __y, float __z) {
+  float res = __x * __y + __z;
+  float rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0f;
+  return rounded;
+}
+__DEVICE__
+float __fmaf_rn(float __x, float __y, float __z) {
+  return __spirv_ocl_rint(__x * __y + __z);
+}
+__DEVICE__
+float __fmaf_ru(float __x, float __y, float __z) {
+  return __spirv_ocl_ceil(__x * __y + __z);
+}
+__DEVICE__
+float __fmaf_rz(float __x, float __y, float __z) {
+  return __spirv_ocl_trunc(__x * __y + __z);
+}
+
+__DEVICE__
+float __fmul_rd(float __x, float __y) {
+  float res = __x * __y;
+  float rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0f;
+  return rounded;
+}
+__DEVICE__
+float __fmul_rn(float __x, float __y) { return __spirv_ocl_rint(__x * __y); }
+__DEVICE__
+float __fmul_ru(float __x, float __y) { return __spirv_ocl_ceil(__x * __y); }
+__DEVICE__
+float __fmul_rz(float __x, float __y) { return __spirv_ocl_trunc(__x * __y); }
+
+__DEVICE__
+float __frcp_rd(float __x) { return __fdiv_rd(1.0f, __x); }
+__DEVICE__
+float __frcp_rn(float __x) { return __fdiv_rn(1.0f, __x); }
+__DEVICE__
+float __frcp_ru(float __x) { return __fdiv_ru(1.0f, __x); }
+__DEVICE__
+float __frcp_rz(float __x) { return __fdiv_rz(1.0f, __x); }
+__DEVICE__
+
+float __frsqrt_rn(float __x) { return 
__spirv_ocl_rint(__spirv_ocl_rsqrt(__x)); }
+
+__DEVICE__
+float __fsqrt_rd(float __x) {
+  float res = __spirv_ocl_sqrt(__x);
+  float rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0f;
+  return rounded;
+}
+__DEVICE__
+float __fsqrt_rn(float __x) { return __spirv_ocl_rint(__spirv_ocl_sqrt(__x)); }
+__DEVICE__
+float __fsqrt_ru(float __x) { return __spirv_ocl_ceil(__spirv_ocl_sqrt(__x)); }
+__DEVICE__
+float __fsqrt_rz(float __x) { return __spirv_ocl_trunc(__spirv_ocl_sqrt(__x)); 
}
+
+__DEVICE__
+float __fsub_rd(float __x, float __y) {
+  float res = __x - __y;
+  float rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0f;
+  return rounded;
+}
+__DEVICE__
+float __fsub_rn(float __x, float __y) { return __spirv_ocl_rint(__x - __y); }
+__DEVICE__
+float __fsub_ru(float __x, float __y) { return __spirv_ocl_ceil(__x - __y); }
+__DEVICE__
+float __fsub_rz(float __x, float __y) { return __spirv_ocl_trunc(__x - __y); }
+__DEVICE__
+float __log10f(float __x) { return __spirv_ocl_log10(__x); }
+__DEVICE__
+float __log2f(float __x) { return __spirv_ocl_log2(__x); }
+__DEVICE__
+float __logf(float __x) { return __spirv_ocl_log(__x); }
+__DEVICE__
+float __powf(float __x, float __y) { return __spirv_ocl_pow(__x, __y); }
+
+__DEVICE__
+float __saturatef(float __x) { return __spirv_ocl_fclamp(__x, 0.0f, 1.0f); }
+
+__DEVICE__
+void __sincosf(float __x, float *__sinptr, float *__cosptr) {
+  *__sinptr = __spirv_ocl_sincos(__x, __cosptr);
+}
+
+__DEVICE__
+float __sinf(float __x) { return __spirv_ocl_sin(__x); }
+
+__DEVICE__
+float __tanf(float __x) {
+  return __spirv_ocl_tan(__x);
+}
+
+__DEVICE__
+int __finitef(float __x) { return !__spirv_IsInf(__x) && !__spirv_IsNan(__x); }
+__DEVICE__
+int __isinff(float __x) { return __spirv_IsInf(__x); }
+__DEVICE__
+int __isnanf(float __x) { return __spirv_IsNan(__x); }
+__DEVICE__
+int __signbitf(float __x) { return __builtin_signbitf(__x); }
+
+__DEVICE__
+int __finite(double __x) { return !__spirv_IsInf(__x) && !__spirv_IsNan(__x); }
+
+__DEVICE__
+int __isinf(double __x) { return __spirv_IsInf(__x); }
+
+__DEVICE__
+int __isnan(double __x) { return __spirv_IsNan(__x); }
+__DEVICE__
+int __signbit(double __x) { return __builtin_signbit(__x); }
+
+
+__DEVICE__
+double __dadd_rd(double __x, double __y) {
+  double sum = __x + __y;
+  double rounded = __spirv_ocl_floor(sum);
+  if (rounded > sum)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __dadd_rn(double __x, double __y) {
+  return __spirv_ocl_rint(__x + __y);
+}
+__DEVICE__
+double __dadd_ru(double __x, double __y) {
+  return __spirv_ocl_ceil(__x + __y);
+}
+__DEVICE__
+double __dadd_rz(double __x, double __y) {
+  return __spirv_ocl_trunc(__x + __y);
+}
+__DEVICE__
+double __ddiv_rd(double __x, double __y) {
+  double res = __x / __y;
+  double rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __ddiv_rn(double __x, double __y) {
+  return __spirv_ocl_rint(__x / __y);
+}
+__DEVICE__
+double __ddiv_ru(double __x, double __y) {
+  return __spirv_ocl_ceil(__x / __y);
+}
+__DEVICE__
+double __ddiv_rz(double __x, double __y) {
+  return __spirv_ocl_trunc(__x / __y);
+}
+
+__DEVICE__
+double __dmul_rd(double __x, double __y) {
+  double res = __x * __y;
+  double rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __dmul_rn(double __x, double __y) {
+  return __spirv_ocl_rint(__x * __y);
+}
+__DEVICE__
+double __dmul_ru(double __x, double __y) {
+  return __spirv_ocl_ceil(__x * __y);
+}
+__DEVICE__
+double __dmul_rz(double __x, double __y) {
+  return __spirv_ocl_trunc(__x * __y);
+}
+
+__DEVICE__
+double __drcp_rd(double __x) { return __ddiv_rd(1.0, __x); }
+__DEVICE__
+double __drcp_rn(double __x) { return __ddiv_rn(1.0, __x); }
+__DEVICE__
+double __drcp_ru(double __x) { return __ddiv_ru(1.0, __x); }
+__DEVICE__
+double __drcp_rz(double __x) { return __ddiv_rz(1.0, __x); }
+
+__DEVICE__
+double __dsqrt_rd(double __x) {
+  double res = __spirv_ocl_sqrt(__x);
+  double rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __dsqrt_rn(double __x) { return 
__spirv_ocl_rint(__spirv_ocl_sqrt(__x)); }
+__DEVICE__
+double __dsqrt_ru(double __x) { return 
__spirv_ocl_ceil(__spirv_ocl_sqrt(__x)); }
+__DEVICE__
+double __dsqrt_rz(double __x) { return 
__spirv_ocl_trunc(__spirv_ocl_sqrt(__x)); }
+
+__DEVICE__
+double __dsub_rd(double __x, double __y) {
+  double res = __x - __y;
+  double rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __dsub_rn(double __x, double __y) {
+  return __spirv_ocl_rint(__x - __y);
+}
+__DEVICE__
+double __dsub_ru(double __x, double __y) {
+  return __spirv_ocl_ceil(__x - __y);
+}
+__DEVICE__
+double __dsub_rz(double __x, double __y) {
+  return __spirv_ocl_trunc(__x - __y);
+}
+
+__DEVICE__
+double __fma_rd(double __x, double __y, double __z) {
+  double res = __x * __y + __z;
+  double rounded = __spirv_ocl_floor(res);
+  if (rounded > res)
+    rounded -= 1.0;
+  return rounded;
+}
+__DEVICE__
+double __fma_rn(double __x, double __y, double __z) {
+  return __spirv_ocl_rint(__x * __y + __z);
+}
+__DEVICE__
+double __fma_ru(double __x, double __y, double __z) {
+  return __spirv_ocl_ceil(__x * __y + __z);
+}
+__DEVICE__
+double __fma_rz(double __x, double __y, double __z) {
+  return __spirv_ocl_trunc(__x * __y + __z);
+}
+
+__DEVICE__ int abs(int __a) { return __spirv_ocl_s_abs(__a); }
+__DEVICE__ double fabs(double __a) { return __spirv_ocl_fabs(__a); }
+__DEVICE__ double acos(double __a) { return __spirv_ocl_acos(__a); }
+__DEVICE__ float acosf(float __a) { return __spirv_ocl_acos(__a); }
+__DEVICE__ double acosh(double __a) { return __spirv_ocl_acosh(__a); }
+__DEVICE__ float acoshf(float __a) { return __spirv_ocl_acosh(__a); }
+__DEVICE__ double asin(double __a) { return __spirv_ocl_asin(__a); }
+__DEVICE__ float asinf(float __a) { return __spirv_ocl_asin(__a); }
+__DEVICE__ double asinh(double __a) { return __spirv_ocl_asinh(__a); }
+__DEVICE__ float asinhf(float __a) { return __spirv_ocl_asinh(__a); }
+__DEVICE__ double atan(double __a) { return __spirv_ocl_atan(__a); }
+__DEVICE__ double atan2(double __a, double __b) { return 
__spirv_ocl_atan2(__a, __b); }
+__DEVICE__ float atan2f(float __a, float __b) { return __spirv_ocl_atan2(__a, 
__b); }
+__DEVICE__ float atanf(float __a) { return __spirv_ocl_atan(__a); }
+__DEVICE__ double atanh(double __a) { return __spirv_ocl_atanh(__a); }
+__DEVICE__ float atanhf(float __a) { return __spirv_ocl_atanh(__a); }
+__DEVICE__ double cbrt(double __a) { return __spirv_ocl_cbrt(__a); }
+__DEVICE__ float cbrtf(float __a) { return __spirv_ocl_cbrt(__a); }
+__DEVICE__ double ceil(double __a) { return __spirv_ocl_ceil(__a); }
+__DEVICE__ float ceilf(float __a) { return __spirv_ocl_ceil(__a); }
+__DEVICE__ double copysign(double __a, double __b) {
+  return __spirv_ocl_copysign(__a, __b);
+}
+__DEVICE__ float copysignf(float __a, float __b) {
+  return __spirv_ocl_copysign(__a, __b);
+}
+__DEVICE__ double cos(double __a) { return __spirv_ocl_cos(__a); }
+__DEVICE__ float cosf(float __a) { return __spirv_ocl_cos(__a); }
+__DEVICE__ double cosh(double __a) { return __spirv_ocl_cosh(__a); }
+__DEVICE__ float coshf(float __a) { return __spirv_ocl_cosh(__a); }
+__DEVICE__ double cospi(double __a) { return __spirv_ocl_cospi(__a); }
+__DEVICE__ float cospif(float __a) { return __spirv_ocl_cospi(__a); }
+__DEVICE__ double erf(double __a) { return __spirv_ocl_erf(__a); }
+__DEVICE__ double erfc(double __a) { return __spirv_ocl_erfc(__a); }
+__DEVICE__ float erfcf(float __a) { return __spirv_ocl_erfc(__a); }
+__DEVICE__ double erfcx(double __a) {
+    return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a); 
+}
+__DEVICE__ float erfcxf(float __a){
+    return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a); 
+}
+__DEVICE__ float erff(float __a) { return __spirv_ocl_erf(__a); }
+__DEVICE__ double exp(double __a) { return __spirv_ocl_exp(__a); }
+__DEVICE__ double exp10(double __a) { return __spirv_ocl_exp10(__a); }
+__DEVICE__ float exp10f(float __a) { return __spirv_ocl_exp10(__a); }
+__DEVICE__ double exp2(double __a) { return __spirv_ocl_exp2(__a); }
+__DEVICE__ float exp2f(float __a) { return __spirv_ocl_exp2(__a); }
+__DEVICE__ float expf(float __a) { return __spirv_ocl_exp(__a); }
+__DEVICE__ double expm1(double __a) { return __spirv_ocl_expm1(__a); }
+__DEVICE__ float expm1f(float __a) { return __spirv_ocl_expm1(__a); }
+__DEVICE__ float fabsf(float __a) { return __spirv_ocl_fabs(__a); }
+__DEVICE__ double fdim(double __a, double __b) { return __spirv_ocl_fdim(__a, 
__b); }
+__DEVICE__ float fdimf(float __a, float __b) { return __spirv_ocl_fdim(__a, 
__b); }
+__DEVICE__ double fdivide(double __a, double __b) { return __a / __b; }
+__DEVICE__ float fdividef(float __a, float __b) { return __a / __b; }
+__DEVICE__ double floor(double __f) { return __spirv_ocl_floor(__f); }
+__DEVICE__ float floorf(float __f) { return __spirv_ocl_floor(__f); }
+__DEVICE__ double fma(double __a, double __b, double __c) {
+  return __spirv_ocl_fma(__a, __b, __c);
+}
+__DEVICE__ float fmaf(float __a, float __b, float __c) {
+  return __spirv_ocl_fma(__a, __b, __c);
+}
+__DEVICE__ double fmax(double __a, double __b) { return __spirv_ocl_fmax(__a, 
__b); }
+__DEVICE__ float fmaxf(float __a, float __b) { return __spirv_ocl_fmax(__a, 
__b); }
+__DEVICE__ double fmin(double __a, double __b) { return __spirv_ocl_fmin(__a, 
__b); }
+__DEVICE__ float fminf(float __a, float __b) { return __spirv_ocl_fmin(__a, 
__b); }
+__DEVICE__ double fmod(double __a, double __b) { return __spirv_ocl_fmod(__a, 
__b); }
+__DEVICE__ float fmodf(float __a, float __b) { return __spirv_ocl_fmod(__a, 
__b); }
+__DEVICE__ double frexp(double __a, int *__b) { return __spirv_ocl_frexp(__a, 
__b); }
+__DEVICE__ float frexpf(float __a, int *__b) { return __spirv_ocl_frexp(__a, 
__b); }
+__DEVICE__ double hypot(double __a, double __b) { return 
__spirv_ocl_hypot(__a, __b); }
+__DEVICE__ float hypotf(float __a, float __b) { return __spirv_ocl_hypot(__a, 
__b); }
+__DEVICE__ int ilogb(double __a) { return __spirv_ocl_ilogb(__a); }
+__DEVICE__ int ilogbf(float __a) { return __spirv_ocl_ilogb(__a); }
+__DEVICE__ long labs(long __a) { return __spirv_ocl_s_abs(__a); };
+__DEVICE__ double ldexp(double __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ float ldexpf(float __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ double lgamma(double __a) { return __spirv_ocl_lgamma(__a); }
+__DEVICE__ float lgammaf(float __a) { return __spirv_ocl_lgamma(__a); }
+__DEVICE__ long long llabs(long long __a) { return __spirv_ocl_s_abs(__a); }
+__DEVICE__ long long llmax(long long __a, long long __b) {
+  return __spirv_ocl_s_max(__a, __b);
+}
+__DEVICE__ long long llmin(long long __a, long long __b) {
+  return __spirv_ocl_s_min(__a, __b);
+}
+__DEVICE__ long long llrint(double __a) { return __builtin_rint(__a); }
+__DEVICE__ long long llrintf(float __a) { return __builtin_rintf(__a); }
+__DEVICE__ long long llround(double __a) { return __builtin_round(__a); }
+__DEVICE__ long long llroundf(float __a) { return __builtin_roundf(__a); }
+__DEVICE__ double round(double __a) { return __spirv_ocl_round(__a); }
+__DEVICE__ float roundf(float __a) { return __spirv_ocl_round(__a); }
+__DEVICE__ double log(double __a) { return __spirv_ocl_log(__a); }
+__DEVICE__ double log10(double __a) { return __spirv_ocl_log10(__a); }
+__DEVICE__ float log10f(float __a) { return __spirv_ocl_log10(__a); }
+__DEVICE__ double log1p(double __a) { return __spirv_ocl_log1p(__a); }
+__DEVICE__ float log1pf(float __a) { return __spirv_ocl_log1p(__a); }
+__DEVICE__ double log2(double __a) { return __spirv_ocl_log2(__a); }
+__DEVICE__ float log2f(float __a) { return __spirv_ocl_log2(__a); }
+__DEVICE__ double logb(double __a) { return __spirv_ocl_logb(__a); }
+__DEVICE__ float logbf(float __a) { return __spirv_ocl_logb(__a); }
+__DEVICE__ float logf(float __a) { return __spirv_ocl_log(__a); }
+__DEVICE__ long lrint(double __a) { return __builtin_rint(__a); }
+__DEVICE__ long lrintf(float __a) { return __builtin_rintf(__a); }
+__DEVICE__ long lround(double __a) { return __builtin_round(__a); }
+__DEVICE__ long lroundf(float __a) { return __builtin_roundf(__a); }
+__DEVICE__ int max(int __a, int __b) { return __spirv_ocl_s_max(__a, __b); }
+__DEVICE__ int min(int __a, int __b) { return __spirv_ocl_s_min(__a, __b); }
+__DEVICE__ double modf(double __a, double *__b) { return __spirv_ocl_modf(__a, 
__b); }
+__DEVICE__ float modff(float __a, float *__b) { return __spirv_ocl_modf(__a, 
__b); }
+__DEVICE__ double nearbyint(double __a) { return __spirv_ocl_rint(__a); }
+__DEVICE__ float nearbyintf(float __a) { return __spirv_ocl_rint(__a); }
+__DEVICE__ double nextafter(double __a, double __b) {
+  return __spirv_ocl_nextafter(__a, __b);
+}
+__DEVICE__ float nextafterf(float __a, float __b) {
+  return __spirv_ocl_nextafter(__a, __b);
+}
+
+__DEVICE__ double norm(int __dim, const double *__a) {
+  double __r = 0;
+  while (__dim--) {
+    __r += __a[0] * __a[0];
+    ++__a;
+  }
+
+  return __spirv_ocl_sqrt(__r);
+}
+__DEVICE__ double norm3d(double __a, double __b, double __c) {
+  return __spirv_ocl_sqrt(__a * __a + __b * __b + __c * __c);
+}
+__DEVICE__ float norm3df(float __a, float __b, float __c) {
+  return __spirv_ocl_sqrt(__a * __a + __b * __b + __c * __c);
+}
+__DEVICE__ double norm4d(double __a, double __b, double __c, double __d) {
+  return __spirv_ocl_sqrt(__a * __a + __b * __b + __c * __c + __d * __d);
+}
+__DEVICE__ float norm4df(float __a, float __b, float __c, float __d) {
+  return __spirv_ocl_sqrt(__a * __a + __b * __b + __c * __c + __d * __d);
+}
+__DEVICE__ double normcdf(double __a) {
+  return 0.5 * (1.0 + __spirv_ocl_erf(__a * __spirv_ocl_rsqrt(2.0)));
+}
+__DEVICE__ float normcdff(float __a) {
+  return 0.5f * (1.0f + __spirv_ocl_erf(__a * __spirv_ocl_rsqrt(2.0f)));
+}
+__DEVICE__ float normf(int __dim, const float *__a) {
+  float __r = 0;
+  while (__dim--) {
+    __r += __a[0] * __a[0];
+    ++__a;
+  }
+  return __spirv_ocl_sqrt(__r);
+}
+__DEVICE__ double pow(double __a, double __b) { return __spirv_ocl_pow(__a, 
__b); }
+__DEVICE__ float powf(float __a, float __b) { return __spirv_ocl_pow(__a, 
__b); }
+__DEVICE__ double powi(double __a, int __b) { return pow(__a, (double)__b); }
+__DEVICE__ float powif(float __a, int __b) { return pow(__a, (float)__b); }
+__DEVICE__ double rcbrt(double __a) { return 1.0 /__spirv_ocl_cbrt(__a); }
+__DEVICE__ float rcbrtf(float __a) { return  1.0f /__spirv_ocl_cbrt(__a); }
+__DEVICE__ double remainder(double __a, double __b) {
+  return __spirv_ocl_remainder(__a, __b);
+}
+__DEVICE__ float remainderf(float __a, float __b) {
+  return __spirv_ocl_remainder(__a, __b);
+}
+__DEVICE__ double remquo(double __a, double __b, int *__c) {
+  return __spirv_ocl_remquo(__a, __b, __c);
+}
+__DEVICE__ float remquof(float __a, float __b, int *__c) {
+  return __spirv_ocl_remquo(__a, __b, __c);
+}
+__DEVICE__ double rhypot(double __a, double __b) {
+  return __spirv_ocl_hypot(__a, __b);
+}
+__DEVICE__ float rhypotf(float __a, float __b) {
+  return __spirv_ocl_hypot(__a, __b);
+}
+__DEVICE__ double rint(double __a) { return __spirv_ocl_rint(__a); }
+__DEVICE__ float rintf(float __a) { return __spirv_ocl_rint(__a); }
+__DEVICE__ double rnorm(int __dim, const double *__a) {
+  double __r = 0;
+  while (__dim--) {
+    __r += __a[0] * __a[0];
+    ++__a;
+  }
+
+  return __spirv_ocl_rsqrt(__r);
+}
+__DEVICE__ double rnorm3d(double __a, double __b, double __c) {
+  return __spirv_ocl_rsqrt(__a * __a + __b * __b + __c * __c);
+}
+__DEVICE__ float rnorm3df(float __a, float __b, float __c) {
+  return __spirv_ocl_rsqrt(__a * __a + __b * __b + __c * __c);
+}
+__DEVICE__ double rnorm4d(double __a, double __b, double __c, double __d) {
+  return __spirv_ocl_rsqrt(__a * __a + __b * __b + __c * __c + __d * __d);
+}
+__DEVICE__ float rnorm4df(float __a, float __b, float __c, float __d) {
+  return __spirv_ocl_rsqrt(__a * __a + __b * __b + __c * __c + __d * __d);
+}
+__DEVICE__ float rnormf(int __dim, const float *__a) {
+  float __r = 0;
+  while (__dim--) {
+    __r += __a[0] * __a[0];
+    ++__a;
+  }
+
+  return __spirv_ocl_rsqrt(__r);
+}
+__DEVICE__ double rsqrt(double __a) { return __spirv_ocl_rsqrt(__a); }
+__DEVICE__ float rsqrtf(float __a) { return __spirv_ocl_rsqrt(__a); }
+__DEVICE__ double scalbn(double __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ float scalbnf(float __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ double scalbln(double __a, long __b) {
+  if (__b > INT_MAX)
+    return __a > 0 ? HUGE_VAL : -HUGE_VAL;
+  if (__b < INT_MIN)
+    return __a > 0 ? 0.0 : -0.0;
+  return scalbn(__a, (int)__b);
+}
+__DEVICE__ float scalblnf(float __a, long __b) {
+  if (__b > INT_MAX)
+    return __a > 0 ? HUGE_VALF : -HUGE_VALF;
+  if (__b < INT_MIN)
+    return __a > 0 ? 0.f : -0.f;
+  return scalbnf(__a, (int)__b);
+}
+__DEVICE__ double sin(double __a) { return __spirv_ocl_sin(__a); }
+__DEVICE__ void sincos(double __a, double *__s, double *__c) {
+  *__s = __spirv_ocl_sincos(__a, __c);
+}
+__DEVICE__ void sincosf(float __a, float *__s, float *__c) {
+  *__s = __spirv_ocl_sincos(__a, __c);
+}
+__DEVICE__ void sincospi(double __a, double *__s, double *__c) {
+  *__s = __spirv_ocl_sinpi(__a);
+  *__c = __spirv_ocl_cospi(__a);
+}
+__DEVICE__ void sincospif(float __a, float *__s, float *__c) {
+  *__s = __spirv_ocl_sinpi(__a);
+  *__c = __spirv_ocl_cospi(__a);
+}
+__DEVICE__ float sinf(float __a) { return __spirv_ocl_sin(__a); }
+__DEVICE__ double sinh(double __a) { return __spirv_ocl_sinh(__a); }
+__DEVICE__ float sinhf(float __a) { return __spirv_ocl_sinh(__a); }
+__DEVICE__ double sinpi(double __a) { return __spirv_ocl_sinpi(__a); }
+__DEVICE__ float sinpif(float __a) { return __spirv_ocl_sinpi(__a); }
+__DEVICE__ double sqrt(double __a) { return __spirv_ocl_sqrt(__a); }
+__DEVICE__ float sqrtf(float __a) { return __spirv_ocl_sqrt(__a); }
+__DEVICE__ double tan(double __a) { return __spirv_ocl_tan(__a); }
+__DEVICE__ float tanf(float __a) { return __spirv_ocl_tan(__a); }
+__DEVICE__ double tanh(double __a) { return __spirv_ocl_tanh(__a); }
+__DEVICE__ float tanhf(float __a) { return __spirv_ocl_tanh(__a); }
+__DEVICE__ double tgamma(double __a) { return __spirv_ocl_tgamma(__a); }
+__DEVICE__ float tgammaf(float __a) { return __spirv_ocl_tgamma(__a); }
+__DEVICE__ double trunc(double __a) { return __spirv_ocl_trunc(__a); }
+__DEVICE__ float truncf(float __a) { return __spirv_ocl_trunc(__a); }
+__DEVICE__ unsigned long long ullmax(unsigned long long __a,
+                                     unsigned long long __b) {
+  return __spirv_ocl_u_max(__a, __b);
+}
+__DEVICE__ unsigned long long ullmin(unsigned long long __a,
+                                     unsigned long long __b) {
+  return __spirv_ocl_u_min(__a, __b);
+}
+__DEVICE__ unsigned int umax(unsigned int __a, unsigned int __b) {
+  return __spirv_ocl_u_max(__a, __b);
+}
+__DEVICE__ unsigned int umin(unsigned int __a, unsigned int __b) {
+  return __spirv_ocl_u_min(__a, __b);
+}
+
+#if !defined(__cplusplus) && __STDC_VERSION__ >= 201112L
+#define isfinite(__x) _Generic((__x), float : __finitef, double : 
__finite)(__x)
+#define isinf(__x) _Generic((__x), float : __isinff, double : __isinf)(__x)
+#define isnan(__x) _Generic((__x), float : __isnanf, double : __isnan)(__x)
+#define signbit(__x)                                                           
\
+  _Generic((__x), float : __signbitf, double : __signbit)(__x)
+#endif // !defined(__cplusplus) && __STDC_VERSION__ >= 201112L
+
+__DEVICE__
+unsigned long __make_mantissa_base8(const char *__tagp) {
+  unsigned long __r = 0;
+  while (*__tagp != '\0') {
+    char __tmp = *__tagp;
+
+    if (__tmp >= '0' && __tmp <= '7')
+      __r = (__r * 8u) + __tmp - '0';
+    else
+      return 0;
+
+    ++__tagp;
+  }
+
+  return __r;
+}
+
+__DEVICE__
+unsigned long __make_mantissa_base10(const char *__tagp) {
+  unsigned long __r = 0;
+  while (*__tagp != '\0') {
+    char __tmp = *__tagp;
+
+    if (__tmp >= '0' && __tmp <= '9')
+      __r = (__r * 10u) + __tmp - '0';
+    else
+      return 0;
+
+    ++__tagp;
+  }
+
+  return __r;
+}
+
+__DEVICE__
+unsigned long __make_mantissa_base16(const char *__tagp) {
+  unsigned long __r = 0;
+  while (*__tagp != '\0') {
+    char __tmp = *__tagp;
+
+    if (__tmp >= '0' && __tmp <= '9')
+      __r = (__r * 16u) + __tmp - '0';
+    else if (__tmp >= 'a' && __tmp <= 'f')
+      __r = (__r * 16u) + __tmp - 'a' + 10;
+    else if (__tmp >= 'A' && __tmp <= 'F')
+      __r = (__r * 16u) + __tmp - 'A' + 10;
+    else
+      return 0;
+
+    ++__tagp;
+  }
+
+  return __r;
+}
+
+__DEVICE__
+unsigned long __make_mantissa(const char *__tagp ) {
+  if (!__tagp)
+    return 0;
+  if (*__tagp == '0') {
+    ++__tagp;
+
+    if (*__tagp == 'x' || *__tagp == 'X')
+      return __make_mantissa_base16(__tagp);
+    else
+      return __make_mantissa_base8(__tagp);
+  }
+
+  return __make_mantissa_base10(__tagp);
+}
+
+float nanf(const char *__tagp) {
+  return __spirv_ocl_nan((unsigned int)__make_mantissa(__tagp));
+}
+double nan(const char *__tagp) {
+  return __spirv_ocl_nan(__make_mantissa(__tagp));
+}
+
+
+#pragma pop_macro("__DEVICE__")
+#endif // __CLANG_GPU_DISABLE_MATH_WRAPPERS
+#endif // __CLANG_SPIRV_MATH_H__
\ No newline at end of file
diff --git a/clang/lib/Headers/openmp_wrappers/math.h 
b/clang/lib/Headers/openmp_wrappers/math.h
index 1e3c07cfdb8cd..024762ba127cd 100644
--- a/clang/lib/Headers/openmp_wrappers/math.h
+++ b/clang/lib/Headers/openmp_wrappers/math.h
@@ -58,4 +58,14 @@
 #pragma omp end declare variant
 #endif
 
+#ifdef __SPIRV__
+#pragma omp begin declare variant match(device = {arch(spirv64)})
+
+#define __OPENMP_SPIRV__
+#include <__clang_spirv_math.h>
+#undef __OPENMP_SPIRV__
+
+#pragma omp end declare variant
+#endif
+
 #endif

>From 340cc774fc6a97016bde87bd721f96522ee2e1b5 Mon Sep 17 00:00:00 2001
From: "Fine, Gregory" <[email protected]>
Date: Tue, 14 Apr 2026 14:17:33 -0700
Subject: [PATCH 2/3] Fix formatting

---
 .../__clang_spirv_libdevice_declares.h        |  19 +-
 clang/lib/Headers/__clang_spirv_math.h        | 167 +++++++++++-------
 2 files changed, 111 insertions(+), 75 deletions(-)

diff --git a/clang/lib/Headers/__clang_spirv_libdevice_declares.h 
b/clang/lib/Headers/__clang_spirv_libdevice_declares.h
index 1b1dda186c104..3530c92305c49 100644
--- a/clang/lib/Headers/__clang_spirv_libdevice_declares.h
+++ b/clang/lib/Headers/__clang_spirv_libdevice_declares.h
@@ -29,12 +29,18 @@ _CLC_OVERLOAD _CLC_CONSTFN long long __spirv_ocl_s_max(long 
long, long long);
 _CLC_OVERLOAD _CLC_CONSTFN int __spirv_ocl_s_min(int, int);
 _CLC_OVERLOAD _CLC_CONSTFN long __spirv_ocl_s_min(long, long);
 _CLC_OVERLOAD _CLC_CONSTFN long long __spirv_ocl_s_min(long long, long long);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_max(unsigned int, 
unsigned int);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_max(unsigned long, 
unsigned long);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned long long __spirv_ocl_u_max(unsigned long 
long, unsigned long long);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_min(unsigned int, 
unsigned int);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_min(unsigned long, 
unsigned long);
-_CLC_OVERLOAD _CLC_CONSTFN unsigned long long __spirv_ocl_u_min(unsigned long 
long, unsigned long long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_max(unsigned int,
+                                                          unsigned int);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_max(unsigned long,
+                                                           unsigned long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long long
+__spirv_ocl_u_max(unsigned long long, unsigned long long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned int __spirv_ocl_u_min(unsigned int,
+                                                          unsigned int);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long __spirv_ocl_u_min(unsigned long,
+                                                           unsigned long);
+_CLC_OVERLOAD _CLC_CONSTFN unsigned long long
+__spirv_ocl_u_min(unsigned long long, unsigned long long);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_acos(float);
 _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_acos(double);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_acosh(float);
@@ -156,7 +162,6 @@ _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_rint(double);
 _CLC_OVERLOAD _CLC_CONSTFN float __spirv_ocl_fclamp(float, float, float);
 _CLC_OVERLOAD _CLC_CONSTFN double __spirv_ocl_fclamp(double, double, double);
 
-
 #if defined(__cplusplus)
 } // extern "C"
 #else
diff --git a/clang/lib/Headers/__clang_spirv_math.h 
b/clang/lib/Headers/__clang_spirv_math.h
index a336eab41dce2..c135c8d527a48 100644
--- a/clang/lib/Headers/__clang_spirv_math.h
+++ b/clang/lib/Headers/__clang_spirv_math.h
@@ -8,7 +8,7 @@
  */
 #ifndef __CLANG_SPIRV_MATH_H__
 #define __CLANG_SPIRV_MATH_H__
- 
+
 #if !defined(__SPIRV__) && !defined(__OPENMP_SPIRV__)
 #error "This file is for SPIRV and OpenMP AMDGCN device compilation only."
 #endif
@@ -39,7 +39,7 @@ __DEVICE__
 float __expf(float __x) { return __spirv_ocl_exp(__x); }
 
 __DEVICE__
-float __fadd_rd(float __x, float __y) { 
+float __fadd_rd(float __x, float __y) {
   float sum = __x + __y;
   float rounded = __spirv_ocl_floor(sum);
   if (rounded > sum)
@@ -117,7 +117,9 @@ __DEVICE__
 float __frcp_rz(float __x) { return __fdiv_rz(1.0f, __x); }
 __DEVICE__
 
-float __frsqrt_rn(float __x) { return 
__spirv_ocl_rint(__spirv_ocl_rsqrt(__x)); }
+float __frsqrt_rn(float __x) {
+  return __spirv_ocl_rint(__spirv_ocl_rsqrt(__x));
+}
 
 __DEVICE__
 float __fsqrt_rd(float __x) {
@@ -169,9 +171,7 @@ __DEVICE__
 float __sinf(float __x) { return __spirv_ocl_sin(__x); }
 
 __DEVICE__
-float __tanf(float __x) {
-  return __spirv_ocl_tan(__x);
-}
+float __tanf(float __x) { return __spirv_ocl_tan(__x); }
 
 __DEVICE__
 int __finitef(float __x) { return !__spirv_IsInf(__x) && !__spirv_IsNan(__x); }
@@ -193,7 +193,6 @@ int __isnan(double __x) { return __spirv_IsNan(__x); }
 __DEVICE__
 int __signbit(double __x) { return __builtin_signbit(__x); }
 
-
 __DEVICE__
 double __dadd_rd(double __x, double __y) {
   double sum = __x + __y;
@@ -203,13 +202,9 @@ double __dadd_rd(double __x, double __y) {
   return rounded;
 }
 __DEVICE__
-double __dadd_rn(double __x, double __y) {
-  return __spirv_ocl_rint(__x + __y);
-}
+double __dadd_rn(double __x, double __y) { return __spirv_ocl_rint(__x + __y); 
}
 __DEVICE__
-double __dadd_ru(double __x, double __y) {
-  return __spirv_ocl_ceil(__x + __y);
-}
+double __dadd_ru(double __x, double __y) { return __spirv_ocl_ceil(__x + __y); 
}
 __DEVICE__
 double __dadd_rz(double __x, double __y) {
   return __spirv_ocl_trunc(__x + __y);
@@ -223,13 +218,9 @@ double __ddiv_rd(double __x, double __y) {
   return rounded;
 }
 __DEVICE__
-double __ddiv_rn(double __x, double __y) {
-  return __spirv_ocl_rint(__x / __y);
-}
+double __ddiv_rn(double __x, double __y) { return __spirv_ocl_rint(__x / __y); 
}
 __DEVICE__
-double __ddiv_ru(double __x, double __y) {
-  return __spirv_ocl_ceil(__x / __y);
-}
+double __ddiv_ru(double __x, double __y) { return __spirv_ocl_ceil(__x / __y); 
}
 __DEVICE__
 double __ddiv_rz(double __x, double __y) {
   return __spirv_ocl_trunc(__x / __y);
@@ -244,13 +235,9 @@ double __dmul_rd(double __x, double __y) {
   return rounded;
 }
 __DEVICE__
-double __dmul_rn(double __x, double __y) {
-  return __spirv_ocl_rint(__x * __y);
-}
+double __dmul_rn(double __x, double __y) { return __spirv_ocl_rint(__x * __y); 
}
 __DEVICE__
-double __dmul_ru(double __x, double __y) {
-  return __spirv_ocl_ceil(__x * __y);
-}
+double __dmul_ru(double __x, double __y) { return __spirv_ocl_ceil(__x * __y); 
}
 __DEVICE__
 double __dmul_rz(double __x, double __y) {
   return __spirv_ocl_trunc(__x * __y);
@@ -274,11 +261,17 @@ double __dsqrt_rd(double __x) {
   return rounded;
 }
 __DEVICE__
-double __dsqrt_rn(double __x) { return 
__spirv_ocl_rint(__spirv_ocl_sqrt(__x)); }
+double __dsqrt_rn(double __x) {
+  return __spirv_ocl_rint(__spirv_ocl_sqrt(__x));
+}
 __DEVICE__
-double __dsqrt_ru(double __x) { return 
__spirv_ocl_ceil(__spirv_ocl_sqrt(__x)); }
+double __dsqrt_ru(double __x) {
+  return __spirv_ocl_ceil(__spirv_ocl_sqrt(__x));
+}
 __DEVICE__
-double __dsqrt_rz(double __x) { return 
__spirv_ocl_trunc(__spirv_ocl_sqrt(__x)); }
+double __dsqrt_rz(double __x) {
+  return __spirv_ocl_trunc(__spirv_ocl_sqrt(__x));
+}
 
 __DEVICE__
 double __dsub_rd(double __x, double __y) {
@@ -289,13 +282,9 @@ double __dsub_rd(double __x, double __y) {
   return rounded;
 }
 __DEVICE__
-double __dsub_rn(double __x, double __y) {
-  return __spirv_ocl_rint(__x - __y);
-}
+double __dsub_rn(double __x, double __y) { return __spirv_ocl_rint(__x - __y); 
}
 __DEVICE__
-double __dsub_ru(double __x, double __y) {
-  return __spirv_ocl_ceil(__x - __y);
-}
+double __dsub_ru(double __x, double __y) { return __spirv_ocl_ceil(__x - __y); 
}
 __DEVICE__
 double __dsub_rz(double __x, double __y) {
   return __spirv_ocl_trunc(__x - __y);
@@ -333,8 +322,12 @@ __DEVICE__ float asinf(float __a) { return 
__spirv_ocl_asin(__a); }
 __DEVICE__ double asinh(double __a) { return __spirv_ocl_asinh(__a); }
 __DEVICE__ float asinhf(float __a) { return __spirv_ocl_asinh(__a); }
 __DEVICE__ double atan(double __a) { return __spirv_ocl_atan(__a); }
-__DEVICE__ double atan2(double __a, double __b) { return 
__spirv_ocl_atan2(__a, __b); }
-__DEVICE__ float atan2f(float __a, float __b) { return __spirv_ocl_atan2(__a, 
__b); }
+__DEVICE__ double atan2(double __a, double __b) {
+  return __spirv_ocl_atan2(__a, __b);
+}
+__DEVICE__ float atan2f(float __a, float __b) {
+  return __spirv_ocl_atan2(__a, __b);
+}
 __DEVICE__ float atanf(float __a) { return __spirv_ocl_atan(__a); }
 __DEVICE__ double atanh(double __a) { return __spirv_ocl_atanh(__a); }
 __DEVICE__ float atanhf(float __a) { return __spirv_ocl_atanh(__a); }
@@ -358,10 +351,10 @@ __DEVICE__ double erf(double __a) { return 
__spirv_ocl_erf(__a); }
 __DEVICE__ double erfc(double __a) { return __spirv_ocl_erfc(__a); }
 __DEVICE__ float erfcf(float __a) { return __spirv_ocl_erfc(__a); }
 __DEVICE__ double erfcx(double __a) {
-    return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a); 
+  return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a);
 }
-__DEVICE__ float erfcxf(float __a){
-    return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a); 
+__DEVICE__ float erfcxf(float __a) {
+  return __spirv_ocl_exp(__a * __a) * __spirv_ocl_erfc(__a);
 }
 __DEVICE__ float erff(float __a) { return __spirv_ocl_erf(__a); }
 __DEVICE__ double exp(double __a) { return __spirv_ocl_exp(__a); }
@@ -373,8 +366,12 @@ __DEVICE__ float expf(float __a) { return 
__spirv_ocl_exp(__a); }
 __DEVICE__ double expm1(double __a) { return __spirv_ocl_expm1(__a); }
 __DEVICE__ float expm1f(float __a) { return __spirv_ocl_expm1(__a); }
 __DEVICE__ float fabsf(float __a) { return __spirv_ocl_fabs(__a); }
-__DEVICE__ double fdim(double __a, double __b) { return __spirv_ocl_fdim(__a, 
__b); }
-__DEVICE__ float fdimf(float __a, float __b) { return __spirv_ocl_fdim(__a, 
__b); }
+__DEVICE__ double fdim(double __a, double __b) {
+  return __spirv_ocl_fdim(__a, __b);
+}
+__DEVICE__ float fdimf(float __a, float __b) {
+  return __spirv_ocl_fdim(__a, __b);
+}
 __DEVICE__ double fdivide(double __a, double __b) { return __a / __b; }
 __DEVICE__ float fdividef(float __a, float __b) { return __a / __b; }
 __DEVICE__ double floor(double __f) { return __spirv_ocl_floor(__f); }
@@ -385,21 +382,45 @@ __DEVICE__ double fma(double __a, double __b, double __c) 
{
 __DEVICE__ float fmaf(float __a, float __b, float __c) {
   return __spirv_ocl_fma(__a, __b, __c);
 }
-__DEVICE__ double fmax(double __a, double __b) { return __spirv_ocl_fmax(__a, 
__b); }
-__DEVICE__ float fmaxf(float __a, float __b) { return __spirv_ocl_fmax(__a, 
__b); }
-__DEVICE__ double fmin(double __a, double __b) { return __spirv_ocl_fmin(__a, 
__b); }
-__DEVICE__ float fminf(float __a, float __b) { return __spirv_ocl_fmin(__a, 
__b); }
-__DEVICE__ double fmod(double __a, double __b) { return __spirv_ocl_fmod(__a, 
__b); }
-__DEVICE__ float fmodf(float __a, float __b) { return __spirv_ocl_fmod(__a, 
__b); }
-__DEVICE__ double frexp(double __a, int *__b) { return __spirv_ocl_frexp(__a, 
__b); }
-__DEVICE__ float frexpf(float __a, int *__b) { return __spirv_ocl_frexp(__a, 
__b); }
-__DEVICE__ double hypot(double __a, double __b) { return 
__spirv_ocl_hypot(__a, __b); }
-__DEVICE__ float hypotf(float __a, float __b) { return __spirv_ocl_hypot(__a, 
__b); }
+__DEVICE__ double fmax(double __a, double __b) {
+  return __spirv_ocl_fmax(__a, __b);
+}
+__DEVICE__ float fmaxf(float __a, float __b) {
+  return __spirv_ocl_fmax(__a, __b);
+}
+__DEVICE__ double fmin(double __a, double __b) {
+  return __spirv_ocl_fmin(__a, __b);
+}
+__DEVICE__ float fminf(float __a, float __b) {
+  return __spirv_ocl_fmin(__a, __b);
+}
+__DEVICE__ double fmod(double __a, double __b) {
+  return __spirv_ocl_fmod(__a, __b);
+}
+__DEVICE__ float fmodf(float __a, float __b) {
+  return __spirv_ocl_fmod(__a, __b);
+}
+__DEVICE__ double frexp(double __a, int *__b) {
+  return __spirv_ocl_frexp(__a, __b);
+}
+__DEVICE__ float frexpf(float __a, int *__b) {
+  return __spirv_ocl_frexp(__a, __b);
+}
+__DEVICE__ double hypot(double __a, double __b) {
+  return __spirv_ocl_hypot(__a, __b);
+}
+__DEVICE__ float hypotf(float __a, float __b) {
+  return __spirv_ocl_hypot(__a, __b);
+}
 __DEVICE__ int ilogb(double __a) { return __spirv_ocl_ilogb(__a); }
 __DEVICE__ int ilogbf(float __a) { return __spirv_ocl_ilogb(__a); }
 __DEVICE__ long labs(long __a) { return __spirv_ocl_s_abs(__a); };
-__DEVICE__ double ldexp(double __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
-__DEVICE__ float ldexpf(float __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ double ldexp(double __a, int __b) {
+  return __spirv_ocl_ldexp(__a, __b);
+}
+__DEVICE__ float ldexpf(float __a, int __b) {
+  return __spirv_ocl_ldexp(__a, __b);
+}
 __DEVICE__ double lgamma(double __a) { return __spirv_ocl_lgamma(__a); }
 __DEVICE__ float lgammaf(float __a) { return __spirv_ocl_lgamma(__a); }
 __DEVICE__ long long llabs(long long __a) { return __spirv_ocl_s_abs(__a); }
@@ -431,8 +452,12 @@ __DEVICE__ long lround(double __a) { return 
__builtin_round(__a); }
 __DEVICE__ long lroundf(float __a) { return __builtin_roundf(__a); }
 __DEVICE__ int max(int __a, int __b) { return __spirv_ocl_s_max(__a, __b); }
 __DEVICE__ int min(int __a, int __b) { return __spirv_ocl_s_min(__a, __b); }
-__DEVICE__ double modf(double __a, double *__b) { return __spirv_ocl_modf(__a, 
__b); }
-__DEVICE__ float modff(float __a, float *__b) { return __spirv_ocl_modf(__a, 
__b); }
+__DEVICE__ double modf(double __a, double *__b) {
+  return __spirv_ocl_modf(__a, __b);
+}
+__DEVICE__ float modff(float __a, float *__b) {
+  return __spirv_ocl_modf(__a, __b);
+}
 __DEVICE__ double nearbyint(double __a) { return __spirv_ocl_rint(__a); }
 __DEVICE__ float nearbyintf(float __a) { return __spirv_ocl_rint(__a); }
 __DEVICE__ double nextafter(double __a, double __b) {
@@ -477,12 +502,16 @@ __DEVICE__ float normf(int __dim, const float *__a) {
   }
   return __spirv_ocl_sqrt(__r);
 }
-__DEVICE__ double pow(double __a, double __b) { return __spirv_ocl_pow(__a, 
__b); }
-__DEVICE__ float powf(float __a, float __b) { return __spirv_ocl_pow(__a, 
__b); }
+__DEVICE__ double pow(double __a, double __b) {
+  return __spirv_ocl_pow(__a, __b);
+}
+__DEVICE__ float powf(float __a, float __b) {
+  return __spirv_ocl_pow(__a, __b);
+}
 __DEVICE__ double powi(double __a, int __b) { return pow(__a, (double)__b); }
 __DEVICE__ float powif(float __a, int __b) { return pow(__a, (float)__b); }
-__DEVICE__ double rcbrt(double __a) { return 1.0 /__spirv_ocl_cbrt(__a); }
-__DEVICE__ float rcbrtf(float __a) { return  1.0f /__spirv_ocl_cbrt(__a); }
+__DEVICE__ double rcbrt(double __a) { return 1.0 / __spirv_ocl_cbrt(__a); }
+__DEVICE__ float rcbrtf(float __a) { return 1.0f / __spirv_ocl_cbrt(__a); }
 __DEVICE__ double remainder(double __a, double __b) {
   return __spirv_ocl_remainder(__a, __b);
 }
@@ -535,8 +564,12 @@ __DEVICE__ float rnormf(int __dim, const float *__a) {
 }
 __DEVICE__ double rsqrt(double __a) { return __spirv_ocl_rsqrt(__a); }
 __DEVICE__ float rsqrtf(float __a) { return __spirv_ocl_rsqrt(__a); }
-__DEVICE__ double scalbn(double __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
-__DEVICE__ float scalbnf(float __a, int __b) { return __spirv_ocl_ldexp(__a, 
__b); }
+__DEVICE__ double scalbn(double __a, int __b) {
+  return __spirv_ocl_ldexp(__a, __b);
+}
+__DEVICE__ float scalbnf(float __a, int __b) {
+  return __spirv_ocl_ldexp(__a, __b);
+}
 __DEVICE__ double scalbln(double __a, long __b) {
   if (__b > INT_MAX)
     return __a > 0 ? HUGE_VAL : -HUGE_VAL;
@@ -597,11 +630,10 @@ __DEVICE__ unsigned int umin(unsigned int __a, unsigned 
int __b) {
 }
 
 #if !defined(__cplusplus) && __STDC_VERSION__ >= 201112L
-#define isfinite(__x) _Generic((__x), float : __finitef, double : 
__finite)(__x)
-#define isinf(__x) _Generic((__x), float : __isinff, double : __isinf)(__x)
-#define isnan(__x) _Generic((__x), float : __isnanf, double : __isnan)(__x)
-#define signbit(__x)                                                           
\
-  _Generic((__x), float : __signbitf, double : __signbit)(__x)
+#define isfinite(__x) _Generic((__x), float: __finitef, double: __finite)(__x)
+#define isinf(__x) _Generic((__x), float: __isinff, double: __isinf)(__x)
+#define isnan(__x) _Generic((__x), float: __isnanf, double: __isnan)(__x)
+#define signbit(__x) _Generic((__x), float: __signbitf, double: __signbit)(__x)
 #endif // !defined(__cplusplus) && __STDC_VERSION__ >= 201112L
 
 __DEVICE__
@@ -660,7 +692,7 @@ unsigned long __make_mantissa_base16(const char *__tagp) {
 }
 
 __DEVICE__
-unsigned long __make_mantissa(const char *__tagp ) {
+unsigned long __make_mantissa(const char *__tagp) {
   if (!__tagp)
     return 0;
   if (*__tagp == '0') {
@@ -682,7 +714,6 @@ double nan(const char *__tagp) {
   return __spirv_ocl_nan(__make_mantissa(__tagp));
 }
 
-
 #pragma pop_macro("__DEVICE__")
 #endif // __CLANG_GPU_DISABLE_MATH_WRAPPERS
 #endif // __CLANG_SPIRV_MATH_H__
\ No newline at end of file

>From 7b8e196657387e320e3b50ed5b4198c2e512dbbd Mon Sep 17 00:00:00 2001
From: "Fine, Gregory" <[email protected]>
Date: Tue, 14 Apr 2026 20:20:01 -0700
Subject: [PATCH 3/3] Fix conversion issue

---
 clang/lib/Headers/__clang_spirv_math.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Headers/__clang_spirv_math.h 
b/clang/lib/Headers/__clang_spirv_math.h
index c135c8d527a48..a48a4a061bd06 100644
--- a/clang/lib/Headers/__clang_spirv_math.h
+++ b/clang/lib/Headers/__clang_spirv_math.h
@@ -699,7 +699,7 @@ unsigned long __make_mantissa(const char *__tagp) {
     ++__tagp;
 
     if (*__tagp == 'x' || *__tagp == 'X')
-      return __make_mantissa_base16(__tagp);
+      return __make_mantissa_base16(++__tagp);
     else
       return __make_mantissa_base8(__tagp);
   }

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