1 ; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
3 ; RUN: llc -march=amdgcn -mcpu=gfx1010 -mattr=-wavefrontsize32,+wavefrontsize64 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX10 %s
4 ; RUN: llc -march=amdgcn -mcpu=gfx1100 -mattr=-wavefrontsize32,+wavefrontsize64 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX10 %s
6 ; GCN-LABEL: {{^}}gs_const:
8 ; GCN: s_mov_b64 exec, 0
9 define amdgpu_gs void @gs_const() {
10 %tmp = icmp ule i32 0, 3
11 %tmp1 = select i1 %tmp, float 1.000000e+00, float -1.000000e+00
12 %c1 = fcmp oge float %tmp1, 0.0
13 call void @llvm.amdgcn.kill(i1 %c1)
14 %tmp2 = icmp ule i32 3, 0
15 %tmp3 = select i1 %tmp2, float 1.000000e+00, float -1.000000e+00
16 %c2 = fcmp oge float %tmp3, 0.0
17 call void @llvm.amdgcn.kill(i1 %c2)
18 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
22 ; GCN-LABEL: {{^}}vcc_implicit_def:
23 ; GCN: v_cmp_nle_f32_e32 vcc, 0, v{{[0-9]+}}
24 ; GCN: v_cmp_gt_f32_e64 [[CMP:s\[[0-9]+:[0-9]+\]]], 0, v{{[0-9]+}}
25 ; GCN: s_and{{n2|_not1}}_b64 exec, exec, vcc
26 ; GCN: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1.0, [[CMP]]
27 define amdgpu_ps void @vcc_implicit_def(float %arg13, float %arg14) {
28 %tmp0 = fcmp olt float %arg13, 0.000000e+00
29 %c1 = fcmp oge float %arg14, 0.0
30 call void @llvm.amdgcn.kill(i1 %c1)
31 %tmp1 = select i1 %tmp0, float 1.000000e+00, float 0.000000e+00
32 call void @llvm.amdgcn.exp.f32(i32 1, i32 15, float %tmp1, float %tmp1, float %tmp1, float %tmp1, i1 true, i1 true) #0
33 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
37 ; GCN-LABEL: {{^}}true:
40 define amdgpu_gs void @true() {
41 call void @llvm.amdgcn.kill(i1 true)
45 ; GCN-LABEL: {{^}}false:
47 ; GCN: s_mov_b64 exec, 0
48 define amdgpu_gs void @false() {
49 call void @llvm.amdgcn.kill(i1 false)
50 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
54 ; GCN-LABEL: {{^}}and:
57 ; GCN: s_or_b64 s[0:1]
58 ; GCN: s_xor_b64 s[0:1], s[0:1], exec
59 ; GCN: s_and{{n2|_not1}}_b64 s[2:3], s[2:3], s[0:1]
60 ; GCN: s_and_b64 exec, exec, s[2:3]
61 define amdgpu_gs void @and(i32 %a, i32 %b, i32 %c, i32 %d) {
62 %c1 = icmp slt i32 %a, %b
63 %c2 = icmp slt i32 %c, %d
65 call void @llvm.amdgcn.kill(i1 %x)
66 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
70 ; GCN-LABEL: {{^}}andn2:
73 ; GCN: s_xor_b64 s[0:1]
74 ; GCN: s_and{{n2|_not1}}_b64 s[2:3], s[2:3], s[0:1]
75 ; GCN: s_and_b64 exec, exec, s[2:3]
76 define amdgpu_gs void @andn2(i32 %a, i32 %b, i32 %c, i32 %d) {
77 %c1 = icmp slt i32 %a, %b
78 %c2 = icmp slt i32 %c, %d
81 call void @llvm.amdgcn.kill(i1 %y)
82 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
86 ; GCN-LABEL: {{^}}oeq:
88 define amdgpu_gs void @oeq(float %a) {
89 %c1 = fcmp oeq float %a, 0.0
90 call void @llvm.amdgcn.kill(i1 %c1)
91 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
95 ; GCN-LABEL: {{^}}ogt:
97 define amdgpu_gs void @ogt(float %a) {
98 %c1 = fcmp ogt float %a, 0.0
99 call void @llvm.amdgcn.kill(i1 %c1)
100 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
104 ; GCN-LABEL: {{^}}oge:
106 define amdgpu_gs void @oge(float %a) {
107 %c1 = fcmp oge float %a, 0.0
108 call void @llvm.amdgcn.kill(i1 %c1)
109 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
113 ; GCN-LABEL: {{^}}olt:
115 define amdgpu_gs void @olt(float %a) {
116 %c1 = fcmp olt float %a, 0.0
117 call void @llvm.amdgcn.kill(i1 %c1)
118 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
122 ; GCN-LABEL: {{^}}ole:
124 define amdgpu_gs void @ole(float %a) {
125 %c1 = fcmp ole float %a, 0.0
126 call void @llvm.amdgcn.kill(i1 %c1)
127 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
131 ; GCN-LABEL: {{^}}one:
133 define amdgpu_gs void @one(float %a) {
134 %c1 = fcmp one float %a, 0.0
135 call void @llvm.amdgcn.kill(i1 %c1)
136 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
140 ; GCN-LABEL: {{^}}ord:
142 define amdgpu_gs void @ord(float %a) {
143 %c1 = fcmp ord float %a, 0.0
144 call void @llvm.amdgcn.kill(i1 %c1)
145 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
149 ; GCN-LABEL: {{^}}uno:
151 define amdgpu_gs void @uno(float %a) {
152 %c1 = fcmp uno float %a, 0.0
153 call void @llvm.amdgcn.kill(i1 %c1)
154 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
158 ; GCN-LABEL: {{^}}ueq:
160 define amdgpu_gs void @ueq(float %a) {
161 %c1 = fcmp ueq float %a, 0.0
162 call void @llvm.amdgcn.kill(i1 %c1)
163 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
167 ; GCN-LABEL: {{^}}ugt:
169 define amdgpu_gs void @ugt(float %a) {
170 %c1 = fcmp ugt float %a, 0.0
171 call void @llvm.amdgcn.kill(i1 %c1)
172 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
176 ; GCN-LABEL: {{^}}uge:
177 ; GCN: v_cmp_gt_f32_e32 vcc, -1.0
178 define amdgpu_gs void @uge(float %a) {
179 %c1 = fcmp uge float %a, -1.0
180 call void @llvm.amdgcn.kill(i1 %c1)
181 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
185 ; GCN-LABEL: {{^}}ult:
186 ; GCN: v_cmp_le_f32_e32 vcc, -2.0
187 define amdgpu_gs void @ult(float %a) {
188 %c1 = fcmp ult float %a, -2.0
189 call void @llvm.amdgcn.kill(i1 %c1)
190 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
194 ; GCN-LABEL: {{^}}ule:
195 ; GCN: v_cmp_lt_f32_e32 vcc, 2.0
196 define amdgpu_gs void @ule(float %a) {
197 %c1 = fcmp ule float %a, 2.0
198 call void @llvm.amdgcn.kill(i1 %c1)
199 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
203 ; GCN-LABEL: {{^}}une:
204 ; GCN: v_cmp_eq_f32_e32 vcc, 0
205 define amdgpu_gs void @une(float %a) {
206 %c1 = fcmp une float %a, 0.0
207 call void @llvm.amdgcn.kill(i1 %c1)
208 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
212 ; GCN-LABEL: {{^}}neg_olt:
213 ; GCN: v_cmp_gt_f32_e32 vcc, 1.0
214 define amdgpu_gs void @neg_olt(float %a) {
215 %c1 = fcmp olt float %a, 1.0
217 call void @llvm.amdgcn.kill(i1 %c2)
218 call void @llvm.amdgcn.s.sendmsg(i32 3, i32 0)
222 ; GCN-LABEL: {{^}}fcmp_x2:
223 ; FIXME: LLVM should be able to combine these fcmp opcodes.
224 ; SI: v_cmp_lt_f32_e32 vcc, s{{[0-9]+}}, v0
225 ; GFX10: v_cmp_lt_f32_e32 vcc, 0x3e800000, v0
228 define amdgpu_ps void @fcmp_x2(float %a) #0 {
229 %ogt = fcmp nsz ogt float %a, 2.500000e-01
230 %k = select i1 %ogt, float -1.000000e+00, float 0.000000e+00
231 %c = fcmp nsz oge float %k, 0.000000e+00
232 call void @llvm.amdgcn.kill(i1 %c) #1
236 ; Note: an almost identical test for this exists in llvm.amdgcn.wqm.vote.ll
237 ; GCN-LABEL: {{^}}wqm:
238 ; GCN: v_cmp_neq_f32_e32 vcc, 0
239 ; GCN-DAG: s_wqm_b64 s[2:3], vcc
240 ; GCN-DAG: s_mov_b64 s[0:1], exec
241 ; GCN: s_xor_b64 s[2:3], s[2:3], exec
242 ; GCN: s_and{{n2|_not1}}_b64 s[0:1], s[0:1], s[2:3]
243 ; GCN: s_and_b64 exec, exec, s[0:1]
244 define amdgpu_ps float @wqm(float %a) {
245 %c1 = fcmp une float %a, 0.0
246 %c2 = call i1 @llvm.amdgcn.wqm.vote(i1 %c1)
247 call void @llvm.amdgcn.kill(i1 %c2)
251 ; This checks that we use the 64-bit encoding when the operand is a SGPR.
252 ; GCN-LABEL: {{^}}test_sgpr:
253 ; GCN: v_cmp_nle_f32_e64
254 define amdgpu_ps void @test_sgpr(float inreg %a) #0 {
255 %c = fcmp ole float %a, 1.000000e+00
256 call void @llvm.amdgcn.kill(i1 %c) #1
260 ; GCN-LABEL: {{^}}test_non_inline_imm_sgpr:
261 ; GCN-NOT: v_cmp_le_f32_e64
262 define amdgpu_ps void @test_non_inline_imm_sgpr(float inreg %a) #0 {
263 %c = fcmp ole float %a, 1.500000e+00
264 call void @llvm.amdgcn.kill(i1 %c) #1
268 ; GCN-LABEL: {{^}}test_scc_liveness:
270 ; GCN: s_and_b64 exec
273 define amdgpu_ps void @test_scc_liveness() #0 {
277 loop3: ; preds = %loop3, %main_body
278 %tmp = phi i32 [ 0, %main_body ], [ %tmp5, %loop3 ]
279 %tmp1 = icmp sgt i32 %tmp, 0
280 call void @llvm.amdgcn.kill(i1 %tmp1) #1
281 %tmp5 = add i32 %tmp, 1
282 br i1 %tmp1, label %endloop15, label %loop3
284 endloop15: ; preds = %loop3
288 ; Check this compiles.
289 ; If kill is marked as defining VCC then this will fail with live interval issues.
290 ; GCN-LABEL: {{^}}kill_with_loop_exit:
291 ; GCN: s_mov_b64 [[LIVE:s\[[0-9]+:[0-9]+\]]], exec
292 ; GCN: s_and{{n2|_not1}}_b64 [[LIVE]], [[LIVE]], exec
293 ; GCN-NEXT: s_cbranch_scc0
294 define amdgpu_ps void @kill_with_loop_exit(float inreg %inp0, float inreg %inp1, <4 x i32> inreg %inp2, float inreg %inp3) {
296 %tmp24 = fcmp olt float %inp0, 1.280000e+02
297 %tmp25 = fcmp olt float %inp1, 1.280000e+02
298 %tmp26 = and i1 %tmp24, %tmp25
299 br i1 %tmp26, label %bb35, label %.preheader1.preheader
301 .preheader1.preheader: ; preds = %.entry
302 %tmp31 = fcmp ogt float %inp3, 0.0
305 bb: ; preds = %bb, %.preheader1.preheader
306 %tmp30 = phi float [ %tmp32, %bb ], [ 1.500000e+00, %.preheader1.preheader ]
307 %tmp32 = fadd reassoc nnan nsz arcp contract float %tmp30, 2.500000e-01
308 %tmp34 = fadd reassoc nnan nsz arcp contract float %tmp30, 2.500000e-01
309 br i1 %tmp31, label %bb, label %bb33
312 call void @llvm.amdgcn.kill(i1 false)
315 bb35: ; preds = %bb33, %.entry
316 %tmp36 = phi float [ %tmp34, %bb33 ], [ 1.000000e+00, %.entry ]
317 call void @llvm.amdgcn.exp.f32(i32 immarg 0, i32 immarg 15, float %tmp36, float %tmp36, float %tmp36, float %tmp36, i1 immarg true, i1 immarg true) #3
321 declare void @llvm.amdgcn.kill(i1) #0
322 declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1) #0
323 declare void @llvm.amdgcn.s.sendmsg(i32, i32) #0
324 declare i1 @llvm.amdgcn.wqm.vote(i1)
326 attributes #0 = { nounwind }