1 ; REQUIRES: aarch64-registered-target
4 ; Test IPA over a single combined file
5 ; RUN: llvm-as %s -o %t0.bc
6 ; RUN: llvm-as %S/Inputs/ipa-alias.ll -o %t1.bc
7 ; RUN: llvm-link %t0.bc %t1.bc -o %t.combined.bc
9 ; RUN: opt -S -passes="print<stack-safety-local>" -disable-output %t.combined.bc 2>&1 | FileCheck %s --check-prefixes=CHECK,LOCAL
11 ; RUN: opt -S -passes="print-stack-safety" -disable-output %t.combined.bc 2>&1 | FileCheck %s --check-prefixes=CHECK,GLOBAL,NOLTO
13 ; Do an end-to-test using the new LTO API
14 ; RUN: opt -module-summary %s -o %t.summ0.bc
15 ; RUN: opt -module-summary %S/Inputs/ipa-alias.ll -o %t.summ1.bc
17 ; RUN: echo > %t.res.txt \
18 ; RUN: -r %t.summ0.bc,AliasCall,px \
19 ; RUN: -r %t.summ0.bc,AliasToBitcastAliasWrite1, \
20 ; RUN: -r %t.summ0.bc,AliasToPreemptableAliasWrite1, \
21 ; RUN: -r %t.summ0.bc,AliasWrite1, \
22 ; RUN: -r %t.summ0.bc,BitcastAliasCall,px \
23 ; RUN: -r %t.summ0.bc,BitcastAliasWrite1, \
24 ; RUN: -r %t.summ0.bc,InterposableAliasCall,px \
25 ; RUN: -r %t.summ0.bc,InterposableAliasWrite1, \
26 ; RUN: -r %t.summ0.bc,PreemptableAliasCall,px \
27 ; RUN: -r %t.summ0.bc,PreemptableAliasWrite1, \
28 ; RUN: -r %t.summ1.bc,AliasToBitcastAliasWrite1,px \
29 ; RUN: -r %t.summ1.bc,AliasToPreemptableAliasWrite1,px \
30 ; RUN: -r %t.summ1.bc,AliasWrite1,px \
31 ; RUN: -r %t.summ1.bc,BitcastAliasWrite1,px \
32 ; RUN: -r %t.summ1.bc,InterposableAliasWrite1,px \
33 ; RUN: -r %t.summ1.bc,PreemptableAliasWrite1,px \
34 ; RUN: -r %t.summ1.bc,Write1,px
36 ; RUN: llvm-lto2 run %t.summ0.bc %t.summ1.bc -o %t.lto -stack-safety-print -stack-safety-run -save-temps -thinlto-threads 1 -O0 \
37 ; RUN: $(cat %t.res.txt) \
38 ; RUN: 2>&1 | FileCheck %s --check-prefixes=CHECK,GLOBAL,LTO
40 ; RUN: llvm-lto2 run %t.summ0.bc %t.summ1.bc -o %t-newpm.lto -stack-safety-print -stack-safety-run -save-temps -use-new-pm -thinlto-threads 1 -O0 \
41 ; RUN: $(cat %t.res.txt) \
42 ; RUN: 2>&1 | FileCheck %s --check-prefixes=CHECK,GLOBAL,LTO
44 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
45 target triple = "aarch64-unknown-linux"
47 attributes #0 = { noinline sanitize_memtag "target-features"="+mte,+neon" }
49 declare void @PreemptableAliasWrite1(i8* %p)
50 declare void @AliasToPreemptableAliasWrite1(i8* %p)
52 declare void @InterposableAliasWrite1(i8* %p)
53 ; Aliases to interposable aliases are not allowed
55 declare void @AliasWrite1(i8* %p)
57 declare void @BitcastAliasWrite1(i32* %p)
58 declare void @AliasToBitcastAliasWrite1(i8* %p)
60 ; Call to dso_preemptable alias to a dso_local aliasee
61 define void @PreemptableAliasCall() #0 {
62 ; CHECK-LABEL: @PreemptableAliasCall dso_preemptable{{$}}
63 ; CHECK-NEXT: args uses:
64 ; CHECK-NEXT: allocas uses:
65 ; LOCAL-NEXT: x1[1]: empty-set, @PreemptableAliasWrite1(arg0, [0,1)){{$}}
66 ; GLOBAL-NEXT: x1[1]: full-set, @PreemptableAliasWrite1(arg0, [0,1)){{$}}
67 ; LOCAL-NEXT: x2[1]: empty-set, @AliasToPreemptableAliasWrite1(arg0, [0,1)){{$}}
68 ; GLOBAL-NEXT: x2[1]: [0,1), @AliasToPreemptableAliasWrite1(arg0, [0,1)){{$}}
69 ; GLOBAL-NEXT: safe accesses:
73 call void @PreemptableAliasWrite1(i8* %x1)
76 ; Alias to a preemptable alias is not preemptable
77 call void @AliasToPreemptableAliasWrite1(i8* %x2)
81 ; Call to an interposable alias to a non-interposable aliasee
82 define void @InterposableAliasCall() #0 {
83 ; CHECK-LABEL: @InterposableAliasCall dso_preemptable{{$}}
84 ; CHECK-NEXT: args uses:
85 ; CHECK-NEXT: allocas uses:
86 ; LOCAL-NEXT: x[1]: empty-set, @InterposableAliasWrite1(arg0, [0,1)){{$}}
87 ; NOLTO-NEXT: x[1]: full-set, @InterposableAliasWrite1(arg0, [0,1)){{$}}
88 ; LTO-NEXT: x[1]: [0,1), @InterposableAliasWrite1(arg0, [0,1)){{$}}
89 ; GLOBAL-NEXT: safe accesses:
93 ; ThinLTO can resolve the prevailing implementation for interposable definitions.
94 call void @InterposableAliasWrite1(i8* %x)
98 ; Call to a dso_local/non-interposable alias/aliasee
99 define void @AliasCall() #0 {
100 ; CHECK-LABEL: @AliasCall dso_preemptable{{$}}
101 ; CHECK-NEXT: args uses:
102 ; CHECK-NEXT: allocas uses:
103 ; LOCAL-NEXT: x[1]: empty-set, @AliasWrite1(arg0, [0,1)){{$}}
104 ; GLOBAL-NEXT: x[1]: [0,1), @AliasWrite1(arg0, [0,1)){{$}}
105 ; GLOBAL-NEXT: safe accesses:
109 call void @AliasWrite1(i8* %x)
113 ; Call to a bitcasted dso_local/non-interposable alias/aliasee
114 define void @BitcastAliasCall() #0 {
115 ; CHECK-LABEL: @BitcastAliasCall dso_preemptable{{$}}
116 ; CHECK-NEXT: args uses:
117 ; CHECK-NEXT: allocas uses:
118 ; LOCAL-NEXT: x1[4]: empty-set, @BitcastAliasWrite1(arg0, [0,1)){{$}}
119 ; GLOBAL-NEXT: x1[4]: [0,1), @BitcastAliasWrite1(arg0, [0,1)){{$}}
120 ; LOCAL-NEXT: x2[1]: empty-set, @AliasToBitcastAliasWrite1(arg0, [0,1)){{$}}
121 ; GLOBAL-NEXT: x2[1]: [0,1), @AliasToBitcastAliasWrite1(arg0, [0,1)){{$}}
122 ; GLOBAL-NEXT: safe accesses:
126 call void @BitcastAliasWrite1(i32* %x1)
128 call void @AliasToBitcastAliasWrite1(i8* %x2)
132 ; The rest is from Inputs/ipa-alias.ll
134 ; CHECK-LABEL: @Write1{{$}}
135 ; CHECK-NEXT: args uses:
136 ; CHECK-NEXT: p[]: [0,1){{$}}
137 ; CHECK-NEXT: allocas uses:
138 ; GLOBAL-NEXT: safe accesses:
139 ; GLOBAL-NEXT: store i8 0, i8* %p, align 1