Add some tests for NVPTX lowering of cmpxchg (24d8aacd) · Commits · llvm-doe / llvm-project

llvm/test/CodeGen/NVPTX/atomics.ll

+14 −0

Original line number	Diff line number	Diff line
		@@ -166,3 +166,17 @@ define float @atomic_add_f32_addrspace3(float addrspace(3)* %addr, float %val) {
		%ret = call float @llvm.nvvm.atomic.load.add.f32.p3f32(float addrspace(3)* %addr, float %val)
		ret float %ret
		}

		; CHECK-LABEL: atomic_cmpxchg_i32
		define i32 @atomic_cmpxchg_i32(i32* %addr, i32 %cmp, i32 %new) {
		; CHECK: atom.cas.b32
		%pairold = cmpxchg i32* %addr, i32 %cmp, i32 %new seq_cst seq_cst
		ret i32 %new
		}

		; CHECK-LABEL: atomic_cmpxchg_i64
		define i64 @atomic_cmpxchg_i64(i64* %addr, i64 %cmp, i64 %new) {
		; CHECK: atom.cas.b64
		%pairold = cmpxchg i64* %addr, i64 %cmp, i64 %new seq_cst seq_cst
		ret i64 %new
		}