aa972f607c
Following recent changes switching from xxh64 to xxh32 for better hashing performance (e.g., D154813). These particular instances likely have negligible time, but this change moves us toward removing xxHash64. The type hash for -fsanitize=function will change, following a recent change D148785 (not in any release yet) to the type hash scheme, though sanitizers don't sign up for cross-version compatibility anyway. The MicrosoftMangle instance is for internal symbols that need no compatibility guarantee, as emphasized by the comment.
36 lines
2.0 KiB
C++
36 lines
2.0 KiB
C++
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,64
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,64
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// RUN: %clang_cc1 -triple aarch64_be-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,64
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// RUN: %clang_cc1 -triple arm-none-eabi -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s --check-prefixes=CHECK,ARM,32
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// CHECK: define{{.*}} void @_Z3funv() #0 !func_sanitize ![[FUNCSAN:.*]] {
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void fun() {}
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// CHECK-LABEL: define{{.*}} void @_Z6callerPFvvE(ptr noundef %f)
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// ARM: ptrtoint ptr {{.*}} to i32, !nosanitize !5
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// ARM: and i32 {{.*}}, -2, !nosanitize !5
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// ARM: inttoptr i32 {{.*}} to ptr, !nosanitize !5
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// CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 0, !nosanitize
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// CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize
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// CHECK: icmp eq i32 {{.*}}, -1056584962, !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize
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// CHECK: [[LABEL1]]:
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// CHECK: getelementptr <{ i32, i32 }>, ptr {{.*}}, i32 -1, i32 1, !nosanitize
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// CHECK: load i32, ptr {{.*}}, align {{.*}}, !nosanitize
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// CHECK: icmp eq i32 {{.*}}, 905068220, !nosanitize
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// CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize
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// CHECK: [[LABEL2]]:
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// 64: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i64 %[[#]]) #[[#]], !nosanitize
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// 32: call void @__ubsan_handle_function_type_mismatch_abort(ptr @[[#]], i32 %[[#]]) #[[#]], !nosanitize
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// CHECK-NEXT: unreachable, !nosanitize
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// CHECK-EMPTY:
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// CHECK-NEXT: [[LABEL3]]:
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// CHECK: br label %[[LABEL4]], !nosanitize
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// CHECK-EMPTY:
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// CHECK-NEXT: [[LABEL4]]:
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// CHECK-NEXT: call void
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// CHECK-NEXT: ret void
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void caller(void (*f)()) { f(); }
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// CHECK: ![[FUNCSAN]] = !{i32 -1056584962, i32 905068220}
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