derek.holloway
7502bf64a4
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112 lines
5.0 KiB
C++
112 lines
5.0 KiB
C++
// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// CHECK: @_Z23used_before_default_defv = weak_odr ifunc void (), ptr @_Z23used_before_default_defv.resolver
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// CHECK: @_Z22used_after_default_defv = weak_odr ifunc void (), ptr @_Z22used_after_default_defv.resolver
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// CHECK-NOT: @_Z24used_before_default_declv = weak_odr ifunc void (), ptr @_Z24used_before_default_declv.resolver
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// CHECK-NOT: @_Z23used_after_default_declv = weak_odr ifunc void (), ptr @_Z23used_after_default_declv.resolver
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// CHECK-NOT: @_Z15used_no_defaultv = weak_odr ifunc void (), ptr @_Z15used_no_defaultv.resolver
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// CHECK-NOT: @_Z19not_used_no_defaultv = weak_odr ifunc void (), ptr @_Z19not_used_no_defaultv.resolver
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// CHECK: @_Z21not_used_with_defaultv = weak_odr ifunc void (), ptr @_Z21not_used_with_defaultv.resolver
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// Test that an ifunc is generated and used when the default
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// version is defined after the first use of the function.
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//
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__attribute__((target_version("aes"))) void used_before_default_def(void) {}
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// CHECK-LABEL: define dso_local void @_Z23used_before_default_defv._Maes(
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//
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void call_before_def(void) { used_before_default_def(); }
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// CHECK-LABEL: define dso_local void @_Z15call_before_defv(
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// CHECK: call void @_Z23used_before_default_defv()
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//
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__attribute__((target_version("default"))) void used_before_default_def(void) {}
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// CHECK-LABEL: define dso_local void @_Z23used_before_default_defv.default(
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//
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// CHECK-NOT: declare void @_Z23used_before_default_defv(
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// Test that an ifunc is generated and used when the default
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// version is defined before the first use of the function.
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//
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__attribute__((target_version("aes"))) void used_after_default_def(void) {}
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// CHECK-LABEL: define dso_local void @_Z22used_after_default_defv._Maes(
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//
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__attribute__((target_version("default"))) void used_after_default_def(void) {}
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// CHECK-LABEL: define dso_local void @_Z22used_after_default_defv.default(
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//
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void call_after_def(void) { used_after_default_def(); }
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// CHECK-LABEL: define dso_local void @_Z14call_after_defv(
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// CHECK: call void @_Z22used_after_default_defv()
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//
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// CHECK-NOT: declare void @_Z22used_after_default_defv(
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// Test that an unmagled declaration is generated and used when the
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// default version is declared after the first use of the function.
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//
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__attribute__((target_version("aes"))) void used_before_default_decl(void) {}
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// CHECK-LABEL: define dso_local void @_Z24used_before_default_declv._Maes(
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//
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void call_before_decl(void) { used_before_default_decl(); }
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// CHECK-LABEL: define dso_local void @_Z16call_before_declv(
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// CHECK: call void @_Z24used_before_default_declv()
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//
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__attribute__((target_version("default"))) void used_before_default_decl(void);
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// CHECK: declare void @_Z24used_before_default_declv()
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// Test that an unmagled declaration is generated and used when the
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// default version is declared before the first use of the function.
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//
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__attribute__((target_version("aes"))) void used_after_default_decl(void) {}
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// CHECK-LABEL: define dso_local void @_Z23used_after_default_declv._Maes(
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//
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__attribute__((target_version("default"))) void used_after_default_decl(void);
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// CHECK: declare void @_Z23used_after_default_declv()
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//
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void call_after_decl(void) { used_after_default_decl(); }
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// CHECK-LABEL: define dso_local void @_Z15call_after_declv(
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// CHECK: call void @_Z23used_after_default_declv()
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// Test that an unmagled declaration is generated and used when
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// the default version is not present.
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//
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__attribute__((target_version("aes"))) void used_no_default(void) {}
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// CHECK-LABEL: define dso_local void @_Z15used_no_defaultv._Maes(
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//
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void call_no_default(void) { used_no_default(); }
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// CHECK-LABEL: define dso_local void @_Z15call_no_defaultv(
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// CHECK: call void @_Z15used_no_defaultv()
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//
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// CHECK: declare void @_Z15used_no_defaultv()
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// Test that neither an ifunc nor a declaration is generated if the default
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// definition is missing since the versioned function is not used.
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//
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__attribute__((target_version("aes"))) void not_used_no_default(void) {}
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// CHECK-LABEL: define dso_local void @_Z19not_used_no_defaultv._Maes(
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//
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// CHECK-NOT: declare void @_Z19not_used_no_defaultv(
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// Test that an ifunc is generated if the default version is defined but not used.
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//
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__attribute__((target_version("aes"))) void not_used_with_default(void) {}
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// CHECK-LABEL: define dso_local void @_Z21not_used_with_defaultv._Maes(
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//
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__attribute__((target_version("default"))) void not_used_with_default(void) {}
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// CHECK-LABEL: define dso_local void @_Z21not_used_with_defaultv.default(
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//
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// CHECK-NOT: declare void @_Z21not_used_with_defaultv(
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// CHECK: define weak_odr ptr @_Z23used_before_default_defv.resolver()
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// CHECK: define weak_odr ptr @_Z22used_after_default_defv.resolver()
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// CHECK-NOT: define weak_odr ptr @_Z24used_before_default_declv.resolver(
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// CHECK-NOT: define weak_odr ptr @_Z23used_after_default_declv.resolver(
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// CHECK-NOT: define weak_odr ptr @_Z15used_no_defaultv.resolver(
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// CHECK-NOT: define weak_odr ptr @_Z19not_used_no_defaultv.resolver(
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// CHECK: define weak_odr ptr @_Z21not_used_with_defaultv.resolver()
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