Author: vitor1001
Date: 2025-06-17T10:52:56-07:00
New Revision: b876b3fa98cffd5b8755398f9a8218f667464d76

URL: 
https://github.com/llvm/llvm-project/commit/b876b3fa98cffd5b8755398f9a8218f667464d76
DIFF: 
https://github.com/llvm/llvm-project/commit/b876b3fa98cffd5b8755398f9a8218f667464d76.diff

LOG: Add missing intrinsics to cuda headers (#143664)

LLVM prevents the sm_32_intrinsics.hpp header from being included with a
#define __SM_32_INTRINSICS_HPP__. It also provides drop-in replacements
of the functions defined in the CUDA header.

One issue is that some intrinsics were added after the replacement was
written, and thus have no replacement, breaking code that calls them
(Raft is one example).

This patch adds the missing intrinsics.

Added: 
    

Modified: 
    clang/lib/Headers/__clang_cuda_intrinsics.h

Removed: 
    


################################################################################
diff  --git a/clang/lib/Headers/__clang_cuda_intrinsics.h 
b/clang/lib/Headers/__clang_cuda_intrinsics.h
index 8b230af6f6647..5e13f3f78df70 100644
--- a/clang/lib/Headers/__clang_cuda_intrinsics.h
+++ b/clang/lib/Headers/__clang_cuda_intrinsics.h
@@ -479,6 +479,290 @@ inline __device__ unsigned __funnelshift_rc(unsigned 
low32, unsigned high32,
   return ret;
 }
 
+#pragma push_macro("__INTRINSIC_LOAD")
+#define __INTRINSIC_LOAD(__FnName, __AsmOp, __DeclType, __TmpType, __AsmType,  
\
+                         __Clobber)                                            
\
+  inline __device__ __DeclType __FnName(const __DeclType *__ptr) {             
\
+    __TmpType __ret;                                                           
\
+    asm(__AsmOp " %0, [%1];" : __AsmType(__ret) : "l"(__ptr)__Clobber);        
\
+    return (__DeclType)__ret;                                                  
\
+  }
+
+#pragma push_macro("__INTRINSIC_LOAD2")
+#define __INTRINSIC_LOAD2(__FnName, __AsmOp, __DeclType, __TmpType, __AsmType, 
\
+                          __Clobber)                                           
\
+  inline __device__ __DeclType __FnName(const __DeclType *__ptr) {             
\
+    __DeclType __ret;                                                          
\
+    __TmpType __tmp;                                                           
\
+    asm(__AsmOp " {%0,%1}, [%2];"                                              
\
+        : __AsmType(__tmp.x), __AsmType(__tmp.y)                               
\
+        : "l"(__ptr)__Clobber);                                                
\
+    using __ElementType = decltype(__ret.x);                                   
\
+    __ret.x = (__ElementType)(__tmp.x);                                        
\
+    __ret.y = (__ElementType)__tmp.y;                                          
\
+    return __ret;                                                              
\
+  }
+
+#pragma push_macro("__INTRINSIC_LOAD4")
+#define __INTRINSIC_LOAD4(__FnName, __AsmOp, __DeclType, __TmpType, __AsmType, 
\
+                          __Clobber)                                           
\
+  inline __device__ __DeclType __FnName(const __DeclType *__ptr) {             
\
+    __DeclType __ret;                                                          
\
+    __TmpType __tmp;                                                           
\
+    asm(__AsmOp " {%0,%1,%2,%3}, [%4];"                                        
\
+        : __AsmType(__tmp.x), __AsmType(__tmp.y), __AsmType(__tmp.z),          
\
+          __AsmType(__tmp.w)                                                   
\
+        : "l"(__ptr)__Clobber);                                                
\
+    using __ElementType = decltype(__ret.x);                                   
\
+    __ret.x = (__ElementType)__tmp.x;                                          
\
+    __ret.y = (__ElementType)__tmp.y;                                          
\
+    __ret.z = (__ElementType)__tmp.z;                                          
\
+    __ret.w = (__ElementType)__tmp.w;                                          
\
+    return __ret;                                                              
\
+  }
+
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.s8", char, unsigned int, "=r", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.s8", signed char, unsigned int, "=r", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.s16", short, unsigned short, "=h", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.s32", int, unsigned int, "=r", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.s64", long long, unsigned long long,
+                 "=l", );
+
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.s8", char2, int2, "=r", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.s8", char4, int4, "=r", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.s16", short2, short2, "=h", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.s16", short4, short4, "=h", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.s32", int2, int2, "=r", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.s32", int4, int4, "=r", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.s64 ", longlong2, longlong2, "=l", 
);
+
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.u8", unsigned char, unsigned int,
+                 "=r", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.u16", unsigned short, unsigned short,
+                 "=h", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.u32", unsigned int, unsigned int,
+                 "=r", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.u64", unsigned long long,
+                 unsigned long long, "=l", );
+
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.u8", uchar2, int2, "=r", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.u8", uchar4, int4, "=r", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.u16", ushort2, ushort2, "=h", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.u16", ushort4, ushort4, "=h", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.u32", uint2, uint2, "=r", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.u32", uint4, uint4, "=r", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.u64", ulonglong2, ulonglong2,
+                  "=l", );
+
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.f32", float, float, "=f", );
+__INTRINSIC_LOAD(__ldcg, "ld.global.cg.f64", double, double, "=d", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.f32", float2, float2, "=f", );
+__INTRINSIC_LOAD4(__ldcg, "ld.global.cg.v4.f32", float4, float4, "=f", );
+__INTRINSIC_LOAD2(__ldcg, "ld.global.cg.v2.f64", double2, double2, "=d", );
+
+inline __device__ long __ldcg(const long *__ptr) {
+  unsigned long __ret;
+  if (sizeof(long) == 8) {
+    asm("ld.global.cg.s64 %0, [%1];" : "=l"(__ret) : "l"(__ptr));
+  } else {
+    asm("ld.global.cg.s32 %0, [%1];" : "=r"(__ret) : "l"(__ptr));
+  }
+  return (long)__ret;
+}
+
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.u8", unsigned char, unsigned int,
+                 "=r", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.u16", unsigned short, unsigned short,
+                 "=h", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.u32", unsigned int, unsigned int,
+                 "=r", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.u64", unsigned long long,
+                 unsigned long long, "=l", : "memory");
+
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.s8", char, unsigned int,
+                 "=r", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.s8", signed char, unsigned int,
+                 "=r", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.s16", short, unsigned short,
+                 "=h", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.s32", int, unsigned int,
+                 "=r", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.s64", long long, unsigned long long,
+                 "=l", : "memory");
+
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.u8", uchar2, uint2,
+                  "=r", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.u8", uchar4, uint4,
+                  "=r", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.u16", ushort2, ushort2,
+                  "=h", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.u16", ushort4, ushort4,
+                  "=h", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.u32", uint2, uint2,
+                  "=r", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.u32", uint4, uint4,
+                  "=r", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.u64", ulonglong2, ulonglong2,
+                  "=l", : "memory");
+
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.s8", char2, int2, "=r", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.s8", char4, int4, "=r", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.s16", short2, short2,
+                  "=h", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.s16", short4, short4,
+                  "=h", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.s32", int2, int2, "=r", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.s32", int4, int4, "=r", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.s64", longlong2, longlong2,
+                  "=l", : "memory");
+
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.f32", float, float, "=f", : "memory");
+__INTRINSIC_LOAD(__ldcv, "ld.global.cv.f64", double, double, "=d", : "memory");
+
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.f32", float2, float2,
+                  "=f", : "memory");
+__INTRINSIC_LOAD4(__ldcv, "ld.global.cv.v4.f32", float4, float4,
+                  "=f", : "memory");
+__INTRINSIC_LOAD2(__ldcv, "ld.global.cv.v2.f64", double2, double2,
+                  "=d", : "memory");
+
+inline __device__ long __ldcv(const long *__ptr) {
+  unsigned long __ret;
+  if (sizeof(long) == 8) {
+    asm("ld.global.cv.s64 %0, [%1];" : "=l"(__ret) : "l"(__ptr));
+  } else {
+    asm("ld.global.cv.s32 %0, [%1];" : "=r"(__ret) : "l"(__ptr));
+  }
+  return (long)__ret;
+}
+
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.s8", char, unsigned int, "=r", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.s8", signed char, signed int, "=r", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.s16", short, unsigned short, "=h", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.s32", int, unsigned int, "=r", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.s64", long long, unsigned long long,
+                 "=l", );
+
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.s8", char2, int2, "=r", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.s8", char4, int4, "=r", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.s16", short2, short2, "=h", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.s16", short4, short4, "=h", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.s32", int2, int2, "=r", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.s32", int4, int4, "=r", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.s64", longlong2, longlong2, "=l", );
+
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.u8", unsigned char, unsigned int,
+                 "=r", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.u16", unsigned short, unsigned short,
+                 "=h", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.u32", unsigned int, unsigned int,
+                 "=r", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.u64", unsigned long long,
+                 unsigned long long, "=l", );
+
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.u8", uchar2, uint2, "=r", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.u8", uchar4, uint4, "=r", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.u16", ushort2, ushort2, "=h", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.u16", ushort4, ushort4, "=h", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.u32", uint2, uint2, "=r", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.u32", uint4, uint4, "=r", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.u64", ulonglong2, ulonglong2,
+                  "=l", );
+
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.f32", float, float, "=f", );
+__INTRINSIC_LOAD(__ldcs, "ld.global.cs.f64", double, double, "=d", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.f32", float2, float2, "=f", );
+__INTRINSIC_LOAD4(__ldcs, "ld.global.cs.v4.f32", float4, float4, "=f", );
+__INTRINSIC_LOAD2(__ldcs, "ld.global.cs.v2.f64", double2, double2, "=d", );
+
+#pragma pop_macro("__INTRINSIC_LOAD")
+#pragma pop_macro("__INTRINSIC_LOAD2")
+#pragma pop_macro("__INTRINSIC_LOAD4")
+
+inline __device__ long __ldcs(const long *__ptr) {
+  unsigned long __ret;
+  if (sizeof(long) == 8) {
+    asm("ld.global.cs.s64 %0, [%1];" : "=l"(__ret) : "l"(__ptr));
+  } else {
+    asm("ld.global.cs.s32 %0, [%1];" : "=r"(__ret) : "l"(__ptr));
+  }
+  return (long)__ret;
+}
+
+#pragma push_macro("__INTRINSIC_STORE")
+#define __INTRINSIC_STORE(__FnName, __AsmOp, __DeclType, __TmpType, __AsmType) 
\
+  inline __device__ void __FnName(__DeclType *__ptr, __DeclType __value) {     
\
+    __TmpType __tmp = (__TmpType)__value;                                      
\
+    asm(__AsmOp " [%0], %1;" ::"l"(__ptr), __AsmType(__tmp) : "memory");       
\
+  }
+
+#pragma push_macro("__INTRINSIC_STORE2")
+#define __INTRINSIC_STORE2(__FnName, __AsmOp, __DeclType, __TmpType,           
\
+                           __AsmType)                                          
\
+  inline __device__ void __FnName(__DeclType *__ptr, __DeclType __value) {     
\
+    __TmpType __tmp;                                                           
\
+    using __ElementType = decltype(__tmp.x);                                   
\
+    __tmp.x = (__ElementType)(__value.x);                                      
\
+    __tmp.y = (__ElementType)(__value.y);                                      
\
+    asm(__AsmOp " [%0], {%1,%2};" ::"l"(__ptr), __AsmType(__tmp.x),            
\
+        __AsmType(__tmp.y)                                                     
\
+        : "memory");                                                           
\
+  }
+
+#pragma push_macro("__INTRINSIC_STORE4")
+#define __INTRINSIC_STORE4(__FnName, __AsmOp, __DeclType, __TmpType,           
\
+                           __AsmType)                                          
\
+  inline __device__ void __FnName(__DeclType *__ptr, __DeclType __value) {     
\
+    __TmpType __tmp;                                                           
\
+    using __ElementType = decltype(__tmp.x);                                   
\
+    __tmp.x = (__ElementType)(__value.x);                                      
\
+    __tmp.y = (__ElementType)(__value.y);                                      
\
+    __tmp.z = (__ElementType)(__value.z);                                      
\
+    __tmp.w = (__ElementType)(__value.w);                                      
\
+    asm(__AsmOp " [%0], {%1,%2,%3,%4};" ::"l"(__ptr), __AsmType(__tmp.x),      
\
+        __AsmType(__tmp.y), __AsmType(__tmp.z), __AsmType(__tmp.w)             
\
+        : "memory");                                                           
\
+  }
+
+__INTRINSIC_STORE(__stwt, "st.global.wt.s8", char, int, "r");
+__INTRINSIC_STORE(__stwt, "st.global.wt.s8", signed char, int, "r");
+__INTRINSIC_STORE(__stwt, "st.global.wt.s16", short, short, "h");
+__INTRINSIC_STORE(__stwt, "st.global.wt.s32", int, int, "r");
+__INTRINSIC_STORE(__stwt, "st.global.wt.s64", long long, long long, "l");
+
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.s8", char2, int2, "r");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.s8", char4, int4, "r");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.s16", short2, short2, "h");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.s16", short4, short4, "h");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.s32", int2, int2, "r");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.s32", int4, int4, "r");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.s64", longlong2, longlong2, "l");
+
+__INTRINSIC_STORE(__stwt, "st.global.wt.u8", unsigned char, int, "r");
+__INTRINSIC_STORE(__stwt, "st.global.wt.u16", unsigned short, unsigned short,
+                  "h");
+__INTRINSIC_STORE(__stwt, "st.global.wt.u32", unsigned int, unsigned int, "r");
+__INTRINSIC_STORE(__stwt, "st.global.wt.u64", unsigned long long,
+                  unsigned long long, "l");
+
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.u8", uchar2, uchar2, "r");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.u8", uchar4, uint4, "r");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.u16", ushort2, ushort2, "h");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.u16", ushort4, ushort4, "h");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.u32", uint2, uint2, "r");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.u32", uint4, uint4, "r");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.u64", ulonglong2, ulonglong2, "l");
+
+__INTRINSIC_STORE(__stwt, "st.global.wt.f32", float, float, "f");
+__INTRINSIC_STORE(__stwt, "st.global.wt.f64", double, double, "d");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.f32", float2, float2, "f");
+__INTRINSIC_STORE4(__stwt, "st.global.wt.v4.f32", float4, float4, "f");
+__INTRINSIC_STORE2(__stwt, "st.global.wt.v2.f64", double2, double2, "d");
+
+#pragma pop_macro("__INTRINSIC_STORE")
+#pragma pop_macro("__INTRINSIC_STORE2")
+#pragma pop_macro("__INTRINSIC_STORE4")
+
 #endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 320
 
 #if CUDA_VERSION >= 11000


        
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