1 ; RUN: llc < %s -asm-verbose=false | FileCheck %s
3 ; Test constant load and store address offsets.
5 target datalayout = "e-p:32:32-i64:64-n32:64-S128"
6 target triple = "wasm32-unknown-unknown"
8 ; With an nuw add, we can fold an offset.
10 ; CHECK-LABEL: load_i32_with_folded_offset:
11 ; CHECK: i32.load $push0=, 24($0){{$}}
12 define i32 @load_i32_with_folded_offset(i32* %p) {
13 %q = ptrtoint i32* %p to i32
14 %r = add nuw i32 %q, 24
15 %s = inttoptr i32 %r to i32*
16 %t = load i32, i32* %s
20 ; With an inbounds gep, we can fold an offset.
22 ; CHECK-LABEL: load_i32_with_folded_gep_offset:
23 ; CHECK: i32.load $push0=, 24($0){{$}}
24 define i32 @load_i32_with_folded_gep_offset(i32* %p) {
25 %s = getelementptr inbounds i32, i32* %p, i32 6
26 %t = load i32, i32* %s
30 ; We can't fold a negative offset though, even with an inbounds gep.
32 ; CHECK-LABEL: load_i32_with_unfolded_gep_negative_offset:
33 ; CHECK: i32.const $push0=, -24{{$}}
34 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
35 ; CHECK: i32.load $push2=, 0($pop1){{$}}
36 define i32 @load_i32_with_unfolded_gep_negative_offset(i32* %p) {
37 %s = getelementptr inbounds i32, i32* %p, i32 -6
38 %t = load i32, i32* %s
42 ; Without nuw, and even with nsw, we can't fold an offset.
44 ; CHECK-LABEL: load_i32_with_unfolded_offset:
45 ; CHECK: i32.const $push0=, 24{{$}}
46 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
47 ; CHECK: i32.load $push2=, 0($pop1){{$}}
48 define i32 @load_i32_with_unfolded_offset(i32* %p) {
49 %q = ptrtoint i32* %p to i32
50 %r = add nsw i32 %q, 24
51 %s = inttoptr i32 %r to i32*
52 %t = load i32, i32* %s
56 ; Without inbounds, we can't fold a gep offset.
58 ; CHECK-LABEL: load_i32_with_unfolded_gep_offset:
59 ; CHECK: i32.const $push0=, 24{{$}}
60 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
61 ; CHECK: i32.load $push2=, 0($pop1){{$}}
62 define i32 @load_i32_with_unfolded_gep_offset(i32* %p) {
63 %s = getelementptr i32, i32* %p, i32 6
64 %t = load i32, i32* %s
68 ; Same as above but with i64.
70 ; CHECK-LABEL: load_i64_with_folded_offset:
71 ; CHECK: i64.load $push0=, 24($0){{$}}
72 define i64 @load_i64_with_folded_offset(i64* %p) {
73 %q = ptrtoint i64* %p to i32
74 %r = add nuw i32 %q, 24
75 %s = inttoptr i32 %r to i64*
76 %t = load i64, i64* %s
80 ; Same as above but with i64.
82 ; CHECK-LABEL: load_i64_with_folded_gep_offset:
83 ; CHECK: i64.load $push0=, 24($0){{$}}
84 define i64 @load_i64_with_folded_gep_offset(i64* %p) {
85 %s = getelementptr inbounds i64, i64* %p, i32 3
86 %t = load i64, i64* %s
90 ; Same as above but with i64.
92 ; CHECK-LABEL: load_i64_with_unfolded_gep_negative_offset:
93 ; CHECK: i32.const $push0=, -24{{$}}
94 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
95 ; CHECK: i64.load $push2=, 0($pop1){{$}}
96 define i64 @load_i64_with_unfolded_gep_negative_offset(i64* %p) {
97 %s = getelementptr inbounds i64, i64* %p, i32 -3
98 %t = load i64, i64* %s
102 ; Same as above but with i64.
104 ; CHECK-LABEL: load_i64_with_unfolded_offset:
105 ; CHECK: i32.const $push0=, 24{{$}}
106 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
107 ; CHECK: i64.load $push2=, 0($pop1){{$}}
108 define i64 @load_i64_with_unfolded_offset(i64* %p) {
109 %q = ptrtoint i64* %p to i32
110 %r = add nsw i32 %q, 24
111 %s = inttoptr i32 %r to i64*
112 %t = load i64, i64* %s
116 ; Same as above but with i64.
118 ; CHECK-LABEL: load_i64_with_unfolded_gep_offset:
119 ; CHECK: i32.const $push0=, 24{{$}}
120 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
121 ; CHECK: i64.load $push2=, 0($pop1){{$}}
122 define i64 @load_i64_with_unfolded_gep_offset(i64* %p) {
123 %s = getelementptr i64, i64* %p, i32 3
124 %t = load i64, i64* %s
128 ; Same as above but with store.
130 ; CHECK-LABEL: store_i32_with_folded_offset:
131 ; CHECK: i32.store $discard=, 24($0), $pop0{{$}}
132 define void @store_i32_with_folded_offset(i32* %p) {
133 %q = ptrtoint i32* %p to i32
134 %r = add nuw i32 %q, 24
135 %s = inttoptr i32 %r to i32*
140 ; Same as above but with store.
142 ; CHECK-LABEL: store_i32_with_folded_gep_offset:
143 ; CHECK: i32.store $discard=, 24($0), $pop0{{$}}
144 define void @store_i32_with_folded_gep_offset(i32* %p) {
145 %s = getelementptr inbounds i32, i32* %p, i32 6
150 ; Same as above but with store.
152 ; CHECK-LABEL: store_i32_with_unfolded_gep_negative_offset:
153 ; CHECK: i32.const $push0=, -24{{$}}
154 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
155 ; CHECK: i32.store $discard=, 0($pop1), $pop2{{$}}
156 define void @store_i32_with_unfolded_gep_negative_offset(i32* %p) {
157 %s = getelementptr inbounds i32, i32* %p, i32 -6
162 ; Same as above but with store.
164 ; CHECK-LABEL: store_i32_with_unfolded_offset:
165 ; CHECK: i32.const $push0=, 24{{$}}
166 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
167 ; CHECK: i32.store $discard=, 0($pop1), $pop2{{$}}
168 define void @store_i32_with_unfolded_offset(i32* %p) {
169 %q = ptrtoint i32* %p to i32
170 %r = add nsw i32 %q, 24
171 %s = inttoptr i32 %r to i32*
176 ; Same as above but with store.
178 ; CHECK-LABEL: store_i32_with_unfolded_gep_offset:
179 ; CHECK: i32.const $push0=, 24{{$}}
180 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
181 ; CHECK: i32.store $discard=, 0($pop1), $pop2{{$}}
182 define void @store_i32_with_unfolded_gep_offset(i32* %p) {
183 %s = getelementptr i32, i32* %p, i32 6
188 ; Same as above but with store with i64.
190 ; CHECK-LABEL: store_i64_with_folded_offset:
191 ; CHECK: i64.store $discard=, 24($0), $pop0{{$}}
192 define void @store_i64_with_folded_offset(i64* %p) {
193 %q = ptrtoint i64* %p to i32
194 %r = add nuw i32 %q, 24
195 %s = inttoptr i32 %r to i64*
200 ; Same as above but with store with i64.
202 ; CHECK-LABEL: store_i64_with_folded_gep_offset:
203 ; CHECK: i64.store $discard=, 24($0), $pop0{{$}}
204 define void @store_i64_with_folded_gep_offset(i64* %p) {
205 %s = getelementptr inbounds i64, i64* %p, i32 3
210 ; Same as above but with store with i64.
212 ; CHECK-LABEL: store_i64_with_unfolded_gep_negative_offset:
213 ; CHECK: i32.const $push0=, -24{{$}}
214 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
215 ; CHECK: i64.store $discard=, 0($pop1), $pop2{{$}}
216 define void @store_i64_with_unfolded_gep_negative_offset(i64* %p) {
217 %s = getelementptr inbounds i64, i64* %p, i32 -3
222 ; Same as above but with store with i64.
224 ; CHECK-LABEL: store_i64_with_unfolded_offset:
225 ; CHECK: i32.const $push0=, 24{{$}}
226 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
227 ; CHECK: i64.store $discard=, 0($pop1), $pop2{{$}}
228 define void @store_i64_with_unfolded_offset(i64* %p) {
229 %q = ptrtoint i64* %p to i32
230 %r = add nsw i32 %q, 24
231 %s = inttoptr i32 %r to i64*
236 ; Same as above but with store with i64.
238 ; CHECK-LABEL: store_i64_with_unfolded_gep_offset:
239 ; CHECK: i32.const $push0=, 24{{$}}
240 ; CHECK: i32.add $push1=, $0, $pop0{{$}}
241 ; CHECK: i64.store $discard=, 0($pop1), $pop2{{$}}
242 define void @store_i64_with_unfolded_gep_offset(i64* %p) {
243 %s = getelementptr i64, i64* %p, i32 3
248 ; When loading from a fixed address, materialize a zero.
250 ; CHECK-LABEL: load_i32_from_numeric_address
251 ; CHECK: i32.const $push0=, 0{{$}}
252 ; CHECK: i32.load $push1=, 42($pop0){{$}}
253 define i32 @load_i32_from_numeric_address() {
254 %s = inttoptr i32 42 to i32*
255 %t = load i32, i32* %s
259 ; CHECK-LABEL: load_i32_from_global_address
260 ; CHECK: i32.const $push0=, 0{{$}}
261 ; CHECK: i32.load $push1=, gv($pop0){{$}}
263 define i32 @load_i32_from_global_address() {
264 %t = load i32, i32* @gv
268 ; CHECK-LABEL: store_i32_to_numeric_address:
269 ; CHECK: i32.const $0=, 0{{$}}
270 ; CHECK: i32.store $discard=, 42($0), $0{{$}}
271 define void @store_i32_to_numeric_address() {
272 %s = inttoptr i32 42 to i32*
277 ; CHECK-LABEL: store_i32_to_global_address:
278 ; CHECK: i32.const $0=, 0{{$}}
279 ; CHECK: i32.store $discard=, gv($0), $0{{$}}
280 define void @store_i32_to_global_address() {
281 store i32 0, i32* @gv
285 ; Fold an offset into a sign-extending load.
287 ; CHECK-LABEL: load_i8_s_with_folded_offset:
288 ; CHECK: i32.load8_s $push0=, 24($0){{$}}
289 define i32 @load_i8_s_with_folded_offset(i8* %p) {
290 %q = ptrtoint i8* %p to i32
291 %r = add nuw i32 %q, 24
292 %s = inttoptr i32 %r to i8*
294 %u = sext i8 %t to i32
298 ; Fold a gep offset into a sign-extending load.
300 ; CHECK-LABEL: load_i8_s_with_folded_gep_offset:
301 ; CHECK: i32.load8_s $push0=, 24($0){{$}}
302 define i32 @load_i8_s_with_folded_gep_offset(i8* %p) {
303 %s = getelementptr inbounds i8, i8* %p, i32 24
305 %u = sext i8 %t to i32
309 ; Fold an offset into a zero-extending load.
311 ; CHECK-LABEL: load_i8_u_with_folded_offset:
312 ; CHECK: i32.load8_u $push0=, 24($0){{$}}
313 define i32 @load_i8_u_with_folded_offset(i8* %p) {
314 %q = ptrtoint i8* %p to i32
315 %r = add nuw i32 %q, 24
316 %s = inttoptr i32 %r to i8*
318 %u = zext i8 %t to i32
322 ; Fold a gep offset into a zero-extending load.
324 ; CHECK-LABEL: load_i8_u_with_folded_gep_offset:
325 ; CHECK: i32.load8_u $push0=, 24($0){{$}}
326 define i32 @load_i8_u_with_folded_gep_offset(i8* %p) {
327 %s = getelementptr inbounds i8, i8* %p, i32 24
329 %u = zext i8 %t to i32
333 ; Fold an offset into a truncating store.
335 ; CHECK-LABEL: store_i8_with_folded_offset:
336 ; CHECK: i32.store8 $discard=, 24($0), $pop0{{$}}
337 define void @store_i8_with_folded_offset(i8* %p) {
338 %q = ptrtoint i8* %p to i32
339 %r = add nuw i32 %q, 24
340 %s = inttoptr i32 %r to i8*
345 ; Fold a gep offset into a truncating store.
347 ; CHECK-LABEL: store_i8_with_folded_gep_offset:
348 ; CHECK: i32.store8 $discard=, 24($0), $pop0{{$}}
349 define void @store_i8_with_folded_gep_offset(i8* %p) {
350 %s = getelementptr inbounds i8, i8* %p, i32 24
355 ; Fold the offsets when lowering aggregate loads and stores.
357 ; CHECK-LABEL: aggregate_load_store:
358 ; CHECK: i32.load $2=, 0($0){{$}}
359 ; CHECK: i32.load $3=, 4($0){{$}}
360 ; CHECK: i32.load $4=, 8($0){{$}}
361 ; CHECK: i32.load $push0=, 12($0){{$}}
362 ; CHECK: i32.store $discard=, 12($1), $pop0{{$}}
363 ; CHECK: i32.store $discard=, 8($1), $4{{$}}
364 ; CHECK: i32.store $discard=, 4($1), $3{{$}}
365 ; CHECK: i32.store $discard=, 0($1), $2{{$}}
366 define void @aggregate_load_store({i32,i32,i32,i32}* %p, {i32,i32,i32,i32}* %q) {
367 ; volatile so that things stay in order for the tests above
368 %t = load volatile {i32,i32,i32,i32}, {i32, i32,i32,i32}* %p
369 store volatile {i32,i32,i32,i32} %t, {i32, i32,i32,i32}* %q
373 ; Fold the offsets when lowering aggregate return values.
375 ; CHECK-LABEL: aggregate_return:
376 ; CHECK: i32.const $push0=, 0{{$}}
377 ; CHECK: i32.store $push1=, 12($0), $pop0{{$}}
378 ; CHECK: i32.store $push2=, 8($0), $pop1{{$}}
379 ; CHECK: i32.store $push3=, 4($0), $pop2{{$}}
380 ; CHECK: i32.store $discard=, 0($0), $pop3{{$}}
381 define {i32,i32,i32,i32} @aggregate_return() {
382 ret {i32,i32,i32,i32} zeroinitializer