Juan Manuel Martinez =?utf-8?q?Caamaño?Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/[email protected]>


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Juan Manuel Martinez Caamaño (jmmartinez)

<details>
<summary>Changes</summary>

The "t" flag is used to mark the builtin signature as meaningless.
This is done on several builtins taking pointers since otherwise HIP code would 
not compile
during compilation for the host (even if the builtin is only used in
device code, compilation would fail).

The builtins changed by this patch are not affected by this issue, so
they do not need the "t" flag in the first place.

---
Full diff: https://github.com/llvm/llvm-project/pull/164824.diff


3 Files Affected:

- (modified) clang/include/clang/Basic/BuiltinsAMDGPU.def (+7-7) 
- (added) clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-add.hip (+18) 
- (added) clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-fmin-max.hip 
(+18) 


``````````diff
diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def 
b/clang/include/clang/Basic/BuiltinsAMDGPU.def
index 01d121b948b68..d149eec5ea990 100644
--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def
+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def
@@ -177,15 +177,15 @@ BUILTIN(__builtin_amdgcn_raw_buffer_load_b64, 
"V2UiQbiiIi", "n")
 BUILTIN(__builtin_amdgcn_raw_buffer_load_b96, "V3UiQbiiIi", "n")
 BUILTIN(__builtin_amdgcn_raw_buffer_load_b128, "V4UiQbiiIi", "n")
 
-BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_add_i32, "iiQbiiIi", "t")
+BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_add_i32, "iiQbiiIi", "")
 
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fadd_f32, "ffQbiiIi", 
"t", "atomic-fadd-rtn-insts")
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fadd_v2f16, 
"V2hV2hQbiiIi", "t", "atomic-buffer-global-pk-add-f16-insts")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fadd_f32, "ffQbiiIi", 
"", "atomic-fadd-rtn-insts")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fadd_v2f16, 
"V2hV2hQbiiIi", "", "atomic-buffer-global-pk-add-f16-insts")
 
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f32, "ffQbiiIi", 
"t", "atomic-fmin-fmax-global-f32")
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f32, "ffQbiiIi", 
"t", "atomic-fmin-fmax-global-f32")
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f64, "ddQbiiIi", 
"t", "atomic-fmin-fmax-global-f64")
-TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f64, "ddQbiiIi", 
"t", "atomic-fmin-fmax-global-f64")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f32, "ffQbiiIi", 
"", "atomic-fmin-fmax-global-f32")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f32, "ffQbiiIi", 
"", "atomic-fmin-fmax-global-f32")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f64, "ddQbiiIi", 
"", "atomic-fmin-fmax-global-f64")
+TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f64, "ddQbiiIi", 
"", "atomic-fmin-fmax-global-f64")
 
 TARGET_BUILTIN(__builtin_amdgcn_raw_ptr_buffer_load_lds, "vQbv*3IUiiiIiIi", 
"t", "vmem-to-lds-load-insts")
 TARGET_BUILTIN(__builtin_amdgcn_struct_ptr_buffer_load_lds, 
"vQbv*3IUiiiiIiIi", "t", "vmem-to-lds-load-insts")
diff --git a/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-add.hip 
b/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-add.hip
new file mode 100644
index 0000000000000..e9e076fa312f2
--- /dev/null
+++ b/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-add.hip
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -triple amdgcn -target-cpu gfx90a -verify %s 
-fcuda-is-device
+// RUN: %clang_cc1 -fsyntax-only -triple x86_64 -aux-triple amdgcn -verify %s
+
+typedef _Float16 __attribute__((ext_vector_type(2))) float16x2_t;
+
+#define __device__ __attribute__((device))
+
+__device__ void test_raw_ptr_atomics(__amdgpu_buffer_rsrc_t rsrc, int i32, 
float f32, float16x2_t v2f16, int offset, int soffset) {
+  i32 = __builtin_amdgcn_raw_ptr_buffer_atomic_add_i32(i32, rsrc, offset, 
soffset, 0);
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fadd_f32(f32, rsrc, offset, 
soffset, 0);
+  v2f16 = __builtin_amdgcn_raw_ptr_buffer_atomic_fadd_v2f16(v2f16, rsrc, 
offset, soffset, 0);
+}
+
+__device__ void test_raw_ptr_atomics_err(__amdgpu_buffer_rsrc_t rsrc, int i32, 
float f32, float16x2_t v2f16, int offset, int soffset) {
+  i32 = __builtin_amdgcn_raw_ptr_buffer_atomic_add_i32(i32, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fadd_f32(f32, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+  v2f16 = __builtin_amdgcn_raw_ptr_buffer_atomic_fadd_v2f16(v2f16, rsrc, 
offset, soffset, 0, 4); // expected-error{{too many arguments to function call}}
+}
diff --git a/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-fmin-max.hip 
b/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-fmin-max.hip
new file mode 100644
index 0000000000000..a2dc02176099d
--- /dev/null
+++ b/clang/test/SemaHIP/builtins-amdgcn-raw-buffer-atomic-fmin-max.hip
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -triple amdgcn -target-cpu gfx90a -verify %s 
-fcuda-is-device
+// RUN: %clang_cc1 -fsyntax-only -triple x86_64 -aux-triple amdgcn -verify %s
+
+#define __device__ __attribute__((device))
+
+__device__ void test_raw_ptr_atomics(__amdgpu_buffer_rsrc_t rsrc, float f32, 
double f64, int offset, int soffset) {
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f32(f32, rsrc, offset, 
soffset, 0);
+  f64 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f64(f64, rsrc, offset, 
soffset, 0);
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f32(f32, rsrc, offset, 
soffset, 0);
+  f64 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f64(f64, rsrc, offset, 
soffset, 0);
+}
+
+__device__ void test_raw_ptr_atomics_err(__amdgpu_buffer_rsrc_t rsrc, float 
f32, double f64, int offset, int soffset) {
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f32(f32, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+  f64 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmin_f64(f64, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+  f32 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f32(f32, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+  f64 = __builtin_amdgcn_raw_ptr_buffer_atomic_fmax_f64(f64, rsrc, offset, 
soffset, 0, 4); // expected-error{{too many arguments to function call}}
+}

``````````

</details>


https://github.com/llvm/llvm-project/pull/164824
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