2016-06-09 02:18:08 +08:00
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// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 %s | FileCheck %s -check-prefix=CHECK-O0
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// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 \
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2016-06-02 08:24:20 +08:00
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// RUN: -fsanitize=address -fsanitize-address-use-after-scope %s | \
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// RUN: FileCheck %s -check-prefix=CHECK-ASAN-USE-AFTER-SCOPE
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extern int bar(char *A, int n);
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// CHECK-O0-NOT: @llvm.lifetime.start
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int foo(int n) {
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if (n) {
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// CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start(i64 10, i8* {{.*}})
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char A[10];
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return bar(A, 1);
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// CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end(i64 10, i8* {{.*}})
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} else {
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// CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start(i64 20, i8* {{.*}})
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char A[20];
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return bar(A, 2);
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// CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end(i64 20, i8* {{.*}})
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}
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}
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