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clang-p2996/clang/test/CodeGenCUDA/amdgpu-atomic-ops.cu
Joseph Huber 81fae0d5e3 [Clang][AMDGPU] Stop defaulting to one-as for all atomic scopes (#120095) 
Summary:
The documentation at
https://llvm.org/docs/AMDGPUUsage.html#memory-scopes states that these
'one-as' modifiers are more specific versions of the scopes that only
apply to a specific address space. This doesn't make sense for fences
which have no associated address space to use, and it's a more
restrictive version the normal scope. This should not tbe the default
behavior, but it is currently emitted in all cases except for
sequentially consistent.
2025-01-06 08:11:08 -06:00

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// RUN: %clang_cc1 -x hip %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa \
// RUN: -fcuda-is-device -target-cpu gfx906 -fnative-half-type \
// RUN: -fnative-half-arguments-and-returns | FileCheck -check-prefixes=CHECK,SAFEIR %s
// RUN: %clang_cc1 -x hip %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa \
// RUN: -fcuda-is-device -target-cpu gfx906 -fnative-half-type \
// RUN: -fnative-half-arguments-and-returns -munsafe-fp-atomics | FileCheck -check-prefixes=CHECK,UNSAFEIR %s
// RUN: %clang_cc1 -x hip %s -O3 -S -o - -triple=amdgcn-amd-amdhsa \
// RUN: -fcuda-is-device -target-cpu gfx1100 -fnative-half-type \
// RUN: -fnative-half-arguments-and-returns | FileCheck -check-prefix=SAFE %s
// RUN: %clang_cc1 -x hip %s -O3 -S -o - -triple=amdgcn-amd-amdhsa \
// RUN: -fcuda-is-device -target-cpu gfx940 -fnative-half-type \
// RUN: -fnative-half-arguments-and-returns -munsafe-fp-atomics \
// RUN: | FileCheck -check-prefix=UNSAFE %s
// REQUIRES: amdgpu-registered-target
#include "Inputs/cuda.h"
#include <stdatomic.h>
__global__ void ffp1(float *p) {
// CHECK-LABEL: @_Z4ffp1Pf
// SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 4{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 4{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 4{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 4{{$}}
// SAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE:[0-9]+]]{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 4, !amdgpu.no.fine.grained.memory !{{[0-9]+}}, !amdgpu.ignore.denormal.mode !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 4, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 4, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 4, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE:[0-9]+]], !amdgpu.no.fine.grained.memory !{{[0-9]+}}, !amdgpu.ignore.denormal.mode !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// SAFE: _Z4ffp1Pf
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// UNSAFE: _Z4ffp1Pf
// UNSAFE: global_atomic_add_f32
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
__atomic_fetch_add(p, 1.0f, memory_order_relaxed);
__atomic_fetch_sub(p, 1.0f, memory_order_relaxed);
__atomic_fetch_max(p, 1.0f, memory_order_relaxed);
__atomic_fetch_min(p, 1.0f, memory_order_relaxed);
__hip_atomic_fetch_add(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_sub(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
__hip_atomic_fetch_max(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_min(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
}
__global__ void ffp2(double *p) {
// CHECK-LABEL: @_Z4ffp2Pd
// SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// SAFE-LABEL: @_Z4ffp2Pd
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// UNSAFE-LABEL: @_Z4ffp2Pd
// UNSAFE: global_atomic_add_f64
// UNSAFE: global_atomic_cmpswap_x2
// UNSAFE: global_atomic_max_f64
// UNSAFE: global_atomic_min_f64
// UNSAFE: global_atomic_max_f64
// UNSAFE: global_atomic_min_f64
__atomic_fetch_add(p, 1.0, memory_order_relaxed);
__atomic_fetch_sub(p, 1.0, memory_order_relaxed);
__atomic_fetch_max(p, 1.0, memory_order_relaxed);
__atomic_fetch_min(p, 1.0, memory_order_relaxed);
__hip_atomic_fetch_add(p, 1.0, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_sub(p, 1.0, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
__hip_atomic_fetch_max(p, 1.0, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_min(p, 1.0, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
}
// long double is the same as double for amdgcn.
__global__ void ffp3(long double *p) {
// CHECK-LABEL: @_Z4ffp3Pe
// SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8{{$}}
// SAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// SAFE-LABEL: @_Z4ffp3Pe
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// SAFE: global_atomic_cmpswap_b64
// UNSAFE-LABEL: @_Z4ffp3Pe
// UNSAFE: global_atomic_cmpswap_x2
// UNSAFE: global_atomic_max_f64
// UNSAFE: global_atomic_min_f64
// UNSAFE: global_atomic_max_f64
// UNSAFE: global_atomic_min_f64
__atomic_fetch_add(p, 1.0L, memory_order_relaxed);
__atomic_fetch_sub(p, 1.0L, memory_order_relaxed);
__atomic_fetch_max(p, 1.0L, memory_order_relaxed);
__atomic_fetch_min(p, 1.0L, memory_order_relaxed);
__hip_atomic_fetch_add(p, 1.0L, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_sub(p, 1.0L, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
__hip_atomic_fetch_max(p, 1.0L, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_min(p, 1.0L, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
}
__device__ double ffp4(double *p, float f) {
// CHECK-LABEL: @_Z4ffp4Pdf
// CHECK: fpext contract float {{.*}} to double
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8{{$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
__atomic_fetch_sub(p, f, memory_order_relaxed);
return __hip_atomic_fetch_sub(p, f, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
}
__device__ double ffp5(double *p, int i) {
// CHECK-LABEL: @_Z4ffp5Pdi
// CHECK: sitofp i32 {{.*}} to double
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8{{$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
__atomic_fetch_sub(p, i, memory_order_relaxed);
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 8, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
return __hip_atomic_fetch_sub(p, i, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
}
__global__ void ffp6(_Float16 *p) {
// CHECK-LABEL: @_Z4ffp6PDF16
// SAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 2{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 2{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 2{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 2{{$}}
// SAFEIR: atomicrmw fadd ptr {{.*}} syncscope("agent") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fsub ptr {{.*}} syncscope("workgroup") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// SAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 2, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 2, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} monotonic, align 2, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} monotonic, align 2, !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fadd ptr {{.*}} monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fsub ptr {{.*}} monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmax ptr {{.*}} syncscope("agent") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// UNSAFEIR: atomicrmw fmin ptr {{.*}} syncscope("workgroup") monotonic, align 2, !noalias.addrspace ![[$NO_PRIVATE]], !amdgpu.no.fine.grained.memory !{{[0-9]+$}}
// SAFE: _Z4ffp6PDF16
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// SAFE: global_atomic_cmpswap
// UNSAFE: _Z4ffp6PDF16
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
// UNSAFE: global_atomic_cmpswap
__atomic_fetch_add(p, 1.0, memory_order_relaxed);
__atomic_fetch_sub(p, 1.0, memory_order_relaxed);
__atomic_fetch_max(p, 1.0, memory_order_relaxed);
__atomic_fetch_min(p, 1.0, memory_order_relaxed);
__hip_atomic_fetch_add(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_sub(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
__hip_atomic_fetch_max(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_AGENT);
__hip_atomic_fetch_min(p, 1.0f, memory_order_relaxed, __HIP_MEMORY_SCOPE_WORKGROUP);
}
// CHECK-LABEL: @_Z12test_cmpxchgPiii
// CHECK: cmpxchg ptr %{{.+}}, i32 %{{.+}}, i32 %{{.+}} acquire acquire, align 4{{$}}
// CHECK: cmpxchg weak ptr %{{.+}}, i32 %{{.+}}, i32 %{{.+}} acquire acquire, align 4{{$}}
// CHECK: cmpxchg ptr %{{.+}}, i32 %{{.+}}, i32 %{{.+}} syncscope("workgroup") monotonic monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
// CHECK: cmpxchg weak ptr %{{.+}}, i32 %{{.+}}, i32 %{{.+}} syncscope("workgroup") monotonic monotonic, align 4, !noalias.addrspace ![[$NO_PRIVATE]]{{$}}
__device__ int test_cmpxchg(int *ptr, int cmp, int desired) {
bool flag = __atomic_compare_exchange(ptr, &cmp, &desired, 0, memory_order_acquire, memory_order_acquire);
flag = __atomic_compare_exchange_n(ptr, &cmp, desired, 1, memory_order_acquire, memory_order_acquire);
flag = __hip_atomic_compare_exchange_strong(ptr, &cmp, desired, __ATOMIC_RELAXED, __ATOMIC_RELAXED, __HIP_MEMORY_SCOPE_WORKGROUP);
flag = __hip_atomic_compare_exchange_weak(ptr, &cmp, desired, __ATOMIC_RELAXED, __ATOMIC_RELAXED, __HIP_MEMORY_SCOPE_WORKGROUP);
return flag;
}
// SAFEIR: ![[$NO_PRIVATE]] = !{i32 5, i32 6}
// UNSAFEIR: ![[$NO_PRIVATE]] = !{i32 5, i32 6}
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