52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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// RUN: %clang_cc1 -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
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// RUN: %clang_cc1 -fsanitize=local-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
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// RUN: %clang_cc1 -fsanitize=array-bounds -O -fsanitize-trap=array-bounds -emit-llvm -triple x86_64-apple-darwin10 -DNO_DYNAMIC %s -o - | FileCheck %s --check-prefixes=CHECK,NONLOCAL
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// RUN: %clang_cc1 -fsanitize=array-bounds -O -fsanitize-trap=array-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 -DNO_DYNAMIC %s -o - | FileCheck %s --check-prefixes=CHECK,NONLOCAL
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//
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// REQUIRES: x86-registered-target
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// CHECK-LABEL: @f
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double f(int b, int i) {
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double a[b];
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// CHECK: call {{.*}} @llvm.{{(ubsan)?trap}}
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return a[i];
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}
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// CHECK-LABEL: @f2
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void f2() {
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// everything is constant; no trap possible
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// CHECK-NOT: call {{.*}} @llvm.{{(ubsan)?trap}}
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int a[2];
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a[1] = 42;
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#ifndef NO_DYNAMIC
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short *b = malloc(64);
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b[5] = *a + a[1] + 2;
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#endif
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}
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// CHECK-LABEL: @f3
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void f3() {
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int a[1];
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// CHECK: call {{.*}} @llvm.{{(ubsan)?trap}}
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a[2] = 1;
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}
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union U { int a[0]; int b[1]; int c[2]; };
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// CHECK-LABEL: define {{.*}} @f4
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int f4(union U *u, int i) {
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// a and b are treated as flexible array members.
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// CHECK-NOT: @llvm.ubsantrap
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return u->a[i] + u->b[i];
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// CHECK: }
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}
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// CHECK-LABEL: define {{.*}} @f5
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int f5(union U *u, int i) {
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// c is not a flexible array member.
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// NONLOCAL: call {{.*}} @llvm.ubsantrap
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return u->c[i];
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// CHECK: }
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}
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