derek.holloway
7502bf64a4
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44 lines
1.8 KiB
C
44 lines
1.8 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -fsanitize-cfi-icall-experimental-normalize-integers -emit-llvm -o - %s | FileCheck %s
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// Test that normalized type metadata for functions are emitted for cross-language CFI support with
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// other languages that can't represent and encode C/C++ integer types.
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void foo(void (*fn)(int), int arg) {
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// CHECK-LABEL: define{{.*}}foo
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// CHECK-SAME: {{.*}}!type ![[TYPE1:[0-9]+]] !type !{{[0-9]+}}
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// CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32E.normalized")
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fn(arg);
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}
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void bar(void (*fn)(int, int), int arg1, int arg2) {
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// CHECK-LABEL: define{{.*}}bar
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// CHECK-SAME: {{.*}}!type ![[TYPE2:[0-9]+]] !type !{{[0-9]+}}
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// CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32S_E.normalized")
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fn(arg1, arg2);
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}
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void baz(void (*fn)(int, int, int), int arg1, int arg2, int arg3) {
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// CHECK-LABEL: define{{.*}}baz
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// CHECK-SAME: {{.*}}!type ![[TYPE3:[0-9]+]] !type !{{[0-9]+}}
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// CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32S_S_E.normalized")
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fn(arg1, arg2, arg3);
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}
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union Union {
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char *c;
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long *n;
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} __attribute__((transparent_union));
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void uni(void (*fn)(union Union), union Union arg1) {
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// CHECK-LABEL: define{{.*}}uni
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// CHECK-SAME: {{.*}}!type ![[TYPE4:[0-9]+]] !type !{{[0-9]+}}
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// CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvPu2i8E.normalized")
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fn(arg1);
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}
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// CHECK: ![[TYPE1]] = !{i64 0, !"_ZTSFvPFvu3i32ES_E.normalized"}
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// CHECK: ![[TYPE2]] = !{i64 0, !"_ZTSFvPFvu3i32S_ES_S_E.normalized"}
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// CHECK: ![[TYPE3]] = !{i64 0, !"_ZTSFvPFvu3i32S_S_ES_S_S_E.normalized"}
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// CHECK: ![[TYPE4]] = !{i64 0, !"_ZTSFvPFv5UnionEPu2i8E.normalized"}
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