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173
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1 // This test checks if internal linkage symbols get unique names with
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2 // -funique-internal-linkage-names option.
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3 // RUN: %clang_cc1 -triple x86_64 -x c++ -S -emit-llvm -o - < %s | FileCheck %s --check-prefix=PLAIN
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207
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4 // RUN: %clang_cc1 -triple x86_64 -x c++ -S -emit-llvm -funique-internal-linkage-names -o - < %s | FileCheck %s --check-prefix=UNIQUE
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173
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5
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6 static int glob;
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7 static int foo() {
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8 return 0;
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9 }
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10
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11 int (*bar())() {
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12 return foo;
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13 }
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14
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15 int getGlob() {
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16 return glob;
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17 }
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18
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19 // Function local static variable and anonymous namespace namespace variable.
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20 namespace {
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21 int anon_m;
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22 int getM() {
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23 return anon_m;
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24 }
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25 } // namespace
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26
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27 int retAnonM() {
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28 static int fGlob;
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29 return getM() + fGlob;
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30 }
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31
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32 // Multiversioning symbols
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33 __attribute__((target("default"))) static int mver() {
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34 return 0;
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35 }
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36
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37 __attribute__((target("sse4.2"))) static int mver() {
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38 return 1;
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39 }
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40
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41 int mver_call() {
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42 return mver();
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43 }
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44
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45 // PLAIN: @_ZL4glob = internal global
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46 // PLAIN: @_ZZ8retAnonMvE5fGlob = internal global
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47 // PLAIN: @_ZN12_GLOBAL__N_16anon_mE = internal global
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48 // PLAIN: define internal i32 @_ZL3foov()
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49 // PLAIN: define internal i32 @_ZN12_GLOBAL__N_14getMEv
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50 // PLAIN: define weak_odr i32 ()* @_ZL4mverv.resolver()
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51 // PLAIN: define internal i32 @_ZL4mverv()
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52 // PLAIN: define internal i32 @_ZL4mverv.sse4.2()
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207
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53 // PLAIN-NOT: "sample-profile-suffix-elision-policy"
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54 // UNIQUE: @_ZL4glob = internal global
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55 // UNIQUE: @_ZZ8retAnonMvE5fGlob = internal global
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56 // UNIQUE: @_ZN12_GLOBAL__N_16anon_mE = internal global
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57 // UNIQUE: define internal i32 @_ZL3foov.[[MODHASH:__uniq.[0-9]+]]() #[[#ATTR:]] {
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58 // UNIQUE: define internal i32 @_ZN12_GLOBAL__N_14getMEv.[[MODHASH]]
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59 // UNIQUE: define weak_odr i32 ()* @_ZL4mverv.[[MODHASH]].resolver()
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60 // UNIQUE: define internal i32 @_ZL4mverv.[[MODHASH]]()
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61 // UNIQUE: define internal i32 @_ZL4mverv.[[MODHASH]].sse4.2
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62 // UNIQUE: attributes #[[#ATTR]] = { {{.*}}"sample-profile-suffix-elision-policy"{{.*}} }
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