[AMDGPU] precommit test for D138401; NFC

llvm/test/CodeGen/AMDGPU/fshl.ll

@@ -693,3 +693,105 @@ entry:
   store <4 x i32> %0, <4 x i32> addrspace(1)* %in
   ret void
 }
+
+; (a ^ b) | a --> a | b
+define amdgpu_kernel void @orxor2or1(i32 addrspace(1)* %in, i32 %a, i32 %b) {
+; SI-LABEL: orxor2or1:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, -1
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b32 s4, s0
+; SI-NEXT:    s_lshl_b32 s0, s2, 7
+; SI-NEXT:    s_mov_b32 s5, s1
+; SI-NEXT:    s_xor_b32 s1, s0, s3
+; SI-NEXT:    s_or_b32 s0, s0, s1
+; SI-NEXT:    s_cmp_eq_u32 s0, 0
+; SI-NEXT:    s_cselect_b32 s0, s2, s3
+; SI-NEXT:    v_mov_b32_e32 v0, s0
+; SI-NEXT:    buffer_store_dword v0, off, s[4:7], 0
+; SI-NEXT:    s_endpgm
+;
+; VI-LABEL: orxor2or1:
+; VI:       ; %bb.0:
+; VI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; VI-NEXT:    s_waitcnt lgkmcnt(0)
+; VI-NEXT:    s_lshl_b32 s4, s2, 7
+; VI-NEXT:    s_xor_b32 s5, s4, s3
+; VI-NEXT:    s_or_b32 s4, s4, s5
+; VI-NEXT:    s_cmp_eq_u32 s4, 0
+; VI-NEXT:    s_cselect_b32 s2, s2, s3
+; VI-NEXT:    v_mov_b32_e32 v0, s0
+; VI-NEXT:    v_mov_b32_e32 v1, s1
+; VI-NEXT:    v_mov_b32_e32 v2, s2
+; VI-NEXT:    flat_store_dword v[0:1], v2
+; VI-NEXT:    s_endpgm
+;
+; GFX9-LABEL: orxor2or1:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_mov_b32_e32 v0, 0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    s_lshl_b32 s4, s2, 7
+; GFX9-NEXT:    s_xor_b32 s5, s4, s3
+; GFX9-NEXT:    s_or_b32 s4, s4, s5
+; GFX9-NEXT:    s_cmp_eq_u32 s4, 0
+; GFX9-NEXT:    s_cselect_b32 s2, s2, s3
+; GFX9-NEXT:    v_mov_b32_e32 v1, s2
+; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; R600-LABEL: orxor2or1:
+; R600:       ; %bb.0:
+; R600-NEXT:    ALU 6, @4, KC0[CB0:0-32], KC1[]
+; R600-NEXT:    MEM_RAT_CACHELESS STORE_RAW T0.X, T1.X, 1
+; R600-NEXT:    CF_END
+; R600-NEXT:    PAD
+; R600-NEXT:    ALU clause starting at 4:
+; R600-NEXT:     LSHL * T0.W, KC0[2].Z, literal.x,
+; R600-NEXT:    7(9.809089e-45), 0(0.000000e+00)
+; R600-NEXT:     XOR_INT * T1.W, PV.W, KC0[2].W,
+; R600-NEXT:     OR_INT * T0.W, T0.W, PV.W,
+; R600-NEXT:     CNDE_INT T0.X, PV.W, KC0[2].Z, KC0[2].W,
+; R600-NEXT:     LSHR * T1.X, KC0[2].Y, literal.x,
+; R600-NEXT:    2(2.802597e-45), 0(0.000000e+00)
+;
+; GFX10-LABEL: orxor2or1:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_mov_b32_e32 v0, 0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    s_lshl_b32 s4, s2, 7
+; GFX10-NEXT:    s_xor_b32 s5, s4, s3
+; GFX10-NEXT:    s_or_b32 s4, s4, s5
+; GFX10-NEXT:    s_cmp_eq_u32 s4, 0
+; GFX10-NEXT:    s_cselect_b32 s2, s2, s3
+; GFX10-NEXT:    v_mov_b32_e32 v1, s2
+; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: orxor2or1:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    s_lshl_b32 s4, s2, 7
+; GFX11-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX11-NEXT:    s_xor_b32 s5, s4, s3
+; GFX11-NEXT:    s_or_b32 s4, s4, s5
+; GFX11-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX11-NEXT:    s_cmp_eq_u32 s4, 0
+; GFX11-NEXT:    s_cselect_b32 s2, s2, s3
+; GFX11-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX11-NEXT:    global_store_b32 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
+  %shl = shl i32 %a, 7
+  %xor = xor i32 %shl, %b
+  %or = or i32 %a, %xor
+  %fshl = call i32 @llvm.fshl.i32(i32 %or, i32 %xor, i32 7)
+  %cond = icmp eq i32 %fshl, 0
+  %r = select i1 %cond, i32 %a, i32 %b
+  store i32 %r, i32 addrspace(1)* %in
+  ret void
+}