1 # RUN: llc -mtriple=aarch64-apple-darwin -run-pass=aarch64-ldst-opt -verify-machineinstrs -o - %s | FileCheck %s
4 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5 target triple = "arm64e-apple-ios13.0"
7 %struct.widget = type { i64, i64, i32, i32, i64, i64, i64, i64, i64, i32, i32, i32, i16, i32, ptr, %struct.zot, %struct.zot, %struct.zot, %struct.zot, %struct.zot, i64, i64, i64, i32, i64, i32, i32, i32, ptr, %struct.baz, %struct.baz, i64, i64, ptr, %struct.zot, i32, i32, i32, i32, i32, i32, i32, [32 x i8], i64, i64, %struct.wombat, i32, i64, i64, i64, i64 }
8 %struct.baz = type { [4 x i32] }
9 %struct.snork = type { i32, i32, [1 x %struct.spam] }
10 %struct.spam = type { %struct.baz, i32, i32 }
11 %struct.zot = type { i64, i64 }
12 %struct.wombat = type { [2 x i32] }
13 %struct.wombat.0 = type { [200 x i32] }
15 @__stack_chk_guard = external global ptr
17 ; Function Attrs: noredzone ssp
18 define hidden void @with_noredzone_80bytes() #0 {
20 %StackGuardSlot = alloca ptr, align 8
21 %0 = call ptr @llvm.stackguard()
22 call void @llvm.stackprotector(ptr %0, ptr %StackGuardSlot)
23 %tmp = alloca %struct.widget, align 16
24 %tmp1 = alloca ptr, align 8
25 %tmp2 = alloca ptr, align 8
26 %tmp3 = alloca ptr, align 8
27 %tmp4 = alloca ptr, align 8
28 store ptr null, ptr %tmp3, align 8
29 store ptr null, ptr %tmp4, align 8
33 define hidden void @with_redzone_480bytes() #2 {
35 %StackGuardSlot = alloca ptr, align 8
36 %0 = call ptr @llvm.stackguard()
37 call void @llvm.stackprotector(ptr %0, ptr %StackGuardSlot)
38 %tmp = alloca %struct.widget, align 16
39 %tmp1 = alloca ptr, align 8
40 %tmp2 = alloca ptr, align 8
41 %tmp3 = alloca ptr, align 8
42 %tmp4 = alloca ptr, align 8
43 store ptr null, ptr %tmp3, align 8
44 store ptr null, ptr %tmp4, align 8
48 define hidden void @with_noredzone_no_mem_between() #0 {
50 %StackGuardSlot = alloca ptr, align 8
51 %0 = call ptr @llvm.stackguard()
52 call void @llvm.stackprotector(ptr %0, ptr %StackGuardSlot)
53 %tmp = alloca %struct.widget, align 16
54 %tmp1 = alloca ptr, align 8
55 %tmp2 = alloca ptr, align 8
56 %tmp3 = alloca ptr, align 8
57 %tmp4 = alloca ptr, align 8
58 store ptr null, ptr %tmp3, align 8
59 store ptr null, ptr %tmp4, align 8
63 ; Function Attrs: nofree nosync nounwind willreturn
64 declare ptr @llvm.stackguard() #1
66 ; Function Attrs: nofree nosync nounwind willreturn
67 declare void @llvm.stackprotector(ptr, ptr) #1
69 attributes #0 = { noredzone ssp "frame-pointer"="non-leaf" }
70 attributes #1 = { nofree nosync nounwind willreturn }
71 attributes #2 = { ssp "frame-pointer"="non-leaf" }
73 # Check that we don't try to combine the SUB with the STP using pre-index addressing
74 # if the function does not have redzone enabled.
75 # CHECK-LABEL: name: with_noredzone_80bytes
76 # CHECK-NOT: STPXpre $xzr, $xzr
78 name: with_noredzone_80bytes
80 exposesReturnsTwice: false
82 regBankSelected: false
85 tracksRegLiveness: true
90 isFrameAddressTaken: false
91 isReturnAddressTaken: false
99 stackProtector: '%stack.0.StackGuardSlot'
101 cvBytesOfCalleeSavedRegisters: 0
102 hasOpaqueSPAdjustment: false
104 hasMustTailInVarArgFunc: false
110 - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8,
111 alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
112 local-offset: -8, debug-info-variable: '', debug-info-expression: '',
113 debug-info-location: '' }
114 - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16,
115 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
116 local-offset: -448, debug-info-variable: '', debug-info-expression: '',
117 debug-info-location: '' }
118 - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8,
119 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
120 local-offset: -456, debug-info-variable: '', debug-info-expression: '',
121 debug-info-location: '' }
122 - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8,
123 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
124 local-offset: -464, debug-info-variable: '', debug-info-expression: '',
125 debug-info-location: '' }
126 - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8,
127 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
128 local-offset: -472, debug-info-variable: '', debug-info-expression: '',
129 debug-info-location: '' }
130 - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8,
131 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
132 local-offset: -480, debug-info-variable: '', debug-info-expression: '',
133 debug-info-location: '' }
134 - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
135 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
136 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
137 - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
138 stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
139 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
140 - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
141 stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true,
142 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
143 - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
144 stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true,
145 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
147 debugValueSubstitutions: []
153 successors: %bb.1(0x7ffff800), %bb.2(0x00000800)
154 liveins: $x27, $x28, $lr
155 early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8)
156 frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6)
157 $fp = frame-setup ADDXri $sp, 16, 0
158 $sp = frame-setup SUBXri $sp, 80, 0
159 frame-setup CFI_INSTRUCTION def_cfa $w29, 16
160 frame-setup CFI_INSTRUCTION offset $w30, -8
161 frame-setup CFI_INSTRUCTION offset $w29, -16
162 frame-setup CFI_INSTRUCTION offset $w27, -24
163 frame-setup CFI_INSTRUCTION offset $w28, -32
164 $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
165 $x8 = LDRXui killed $x8, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard
166 $x8 = LDRXui killed $x8, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
167 STURXi killed renamable $x8, $fp, -24 :: (volatile store (s64) into %stack.0.StackGuardSlot)
168 STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3)
169 STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4)
170 renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot)
171 $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
172 $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard
173 $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
174 $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv
175 Bcc 1, %bb.2, implicit $nzcv
178 $sp = frame-destroy ADDXri $sp, 480, 0
179 $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6)
180 early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8)
184 BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
187 # Check we don't try to fold a 480 byte offset, even if we have a 128 byte redzone.
188 # CHECK-LABEL: name: with_redzone_480bytes
189 # CHECK-NOT: STPXpre $xzr, $xzr
191 name: with_redzone_480bytes
193 exposesReturnsTwice: false
195 regBankSelected: false
198 tracksRegLiveness: true
203 isFrameAddressTaken: false
204 isReturnAddressTaken: false
212 stackProtector: '%stack.0.StackGuardSlot'
214 cvBytesOfCalleeSavedRegisters: 0
215 hasOpaqueSPAdjustment: false
217 hasMustTailInVarArgFunc: false
223 - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8,
224 alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
225 local-offset: -8, debug-info-variable: '', debug-info-expression: '',
226 debug-info-location: '' }
227 - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16,
228 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
229 local-offset: -448, debug-info-variable: '', debug-info-expression: '',
230 debug-info-location: '' }
231 - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8,
232 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
233 local-offset: -456, debug-info-variable: '', debug-info-expression: '',
234 debug-info-location: '' }
235 - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8,
236 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
237 local-offset: -464, debug-info-variable: '', debug-info-expression: '',
238 debug-info-location: '' }
239 - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8,
240 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
241 local-offset: -472, debug-info-variable: '', debug-info-expression: '',
242 debug-info-location: '' }
243 - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8,
244 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
245 local-offset: -480, debug-info-variable: '', debug-info-expression: '',
246 debug-info-location: '' }
247 - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
248 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
249 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
250 - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
251 stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
252 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
253 - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
254 stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true,
255 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
256 - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
257 stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true,
258 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
260 debugValueSubstitutions: []
264 successors: %bb.1(0x7ffff800), %bb.2(0x00000800)
265 liveins: $x27, $x28, $lr
266 early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8)
267 frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6)
268 $fp = frame-setup ADDXri $sp, 16, 0
269 $sp = frame-setup SUBXri $sp, 480, 0
270 frame-setup CFI_INSTRUCTION def_cfa $w29, 16
271 frame-setup CFI_INSTRUCTION offset $w30, -8
272 frame-setup CFI_INSTRUCTION offset $w29, -16
273 frame-setup CFI_INSTRUCTION offset $w27, -24
274 frame-setup CFI_INSTRUCTION offset $w28, -32
275 $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
276 $x8 = LDRXui killed $x8, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard
277 $x8 = LDRXui killed $x8, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
278 STURXi killed renamable $x8, $fp, -24 :: (volatile store (s64) into %stack.0.StackGuardSlot)
279 STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3)
280 STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4)
281 renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot)
282 $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
283 $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard
284 $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
285 $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv
286 Bcc 1, %bb.2, implicit $nzcv
289 $sp = frame-destroy ADDXri $sp, 480, 0
290 $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6)
291 early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8)
295 BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
298 # Check we still do the opt if there are no mem ops between.
299 # CHECK-LABEL: name: with_noredzone_no_mem_between
300 # CHECK: STPXpre $xzr, $xzr
302 name: with_noredzone_no_mem_between
304 exposesReturnsTwice: false
306 regBankSelected: false
309 tracksRegLiveness: true
314 isFrameAddressTaken: false
315 isReturnAddressTaken: false
323 stackProtector: '%stack.0.StackGuardSlot'
325 cvBytesOfCalleeSavedRegisters: 0
326 hasOpaqueSPAdjustment: false
328 hasMustTailInVarArgFunc: false
334 - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8,
335 alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
336 local-offset: -8, debug-info-variable: '', debug-info-expression: '',
337 debug-info-location: '' }
338 - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16,
339 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
340 local-offset: -448, debug-info-variable: '', debug-info-expression: '',
341 debug-info-location: '' }
342 - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8,
343 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
344 local-offset: -456, debug-info-variable: '', debug-info-expression: '',
345 debug-info-location: '' }
346 - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8,
347 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
348 local-offset: -464, debug-info-variable: '', debug-info-expression: '',
349 debug-info-location: '' }
350 - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8,
351 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
352 local-offset: -472, debug-info-variable: '', debug-info-expression: '',
353 debug-info-location: '' }
354 - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8,
355 stack-id: default, callee-saved-register: '', callee-saved-restored: true,
356 local-offset: -480, debug-info-variable: '', debug-info-expression: '',
357 debug-info-location: '' }
358 - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
359 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
360 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
361 - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
362 stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,
363 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
364 - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
365 stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true,
366 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
367 - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
368 stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true,
369 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
371 debugValueSubstitutions: []
377 successors: %bb.1(0x7ffff800), %bb.2(0x00000800)
378 liveins: $x27, $x28, $lr
379 early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8)
380 frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6)
381 $fp = frame-setup ADDXri $sp, 16, 0
382 $sp = frame-setup SUBXri $sp, 480, 0
383 frame-setup CFI_INSTRUCTION def_cfa $w29, 16
384 frame-setup CFI_INSTRUCTION offset $w30, -8
385 frame-setup CFI_INSTRUCTION offset $w29, -16
386 frame-setup CFI_INSTRUCTION offset $w27, -24
387 frame-setup CFI_INSTRUCTION offset $w28, -32
388 $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
389 STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3)
390 STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4)
391 renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot)
392 $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard
393 $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard
394 $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard)
395 $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv
396 Bcc 1, %bb.2, implicit $nzcv
399 $sp = frame-destroy ADDXri $sp, 480, 0
400 $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6)
401 early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8)
405 BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp