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Differential D77373

Add more -fsanitize=array-bounds tests
Changes PlannedPublic

Authored by vitalybuka on Apr 3 2020, 1:29 AM.

Details

Reviewers
rsmith

Diff Detail

Revision Contents

PathSize
clang/
test/
CodeGen/
59 lines
100 lines

Diff 254723

clang/test/CodeGen/bounds-checking.c

// RUN: %clang_cc1 -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s // RUN: %clang_cc1 -w -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
// RUN: %clang_cc1 -fsanitize=local-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s // RUN: %clang_cc1 -w -fsanitize=local-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
// 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 // RUN: %clang_cc1 -w -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
// 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 // RUN: %clang_cc1 -w -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
// //
// REQUIRES: x86-registered-target // REQUIRES: x86-registered-target
// CHECK-LABEL: @f // CHECK-LABEL: @f
double f(int b, int i) { double f(int b, int i) {
double a[b]; double a[b];
// CHECK: call {{.*}} @llvm.trap // CHECK: call {{.*}} @llvm.trap
return a[i]; return a[i];
Show All 31 Lines
// CHECK-LABEL: define {{.*}} @f5 // CHECK-LABEL: define {{.*}} @f5
int f5(union U *u, int i) { int f5(union U *u, int i) {
// c is not a flexible array member. // c is not a flexible array member.
// NONLOCAL: call {{.*}} @llvm.trap // NONLOCAL: call {{.*}} @llvm.trap
return u->c[i]; return u->c[i];
// CHECK: } // CHECK: }
} }
struct S0 {
int t;
int a[0];
};
// CHECK-LABEL: define {{.*}} @S0
int S0(struct S0 *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}
struct S1 {
int t;
int a[1];
};
// CHECK-LABEL: define {{.*}} @S1
int S1(struct S1 *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}
struct S2 {
int t;
int a[2];
};
// CHECK-LABEL: define {{.*}} @S2
int S2(struct S2 *s, int i) {
// a and b are treated as flexible array members.
// NONLOCAL: call {{.*}} @llvm.trap
return s->a[i];
}
struct SFlex {
int t;
int a[];
};
// CHECK-LABEL: define {{.*}} @SFlex
int SFlex(struct SFlex *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}

clang/test/CodeGen/bounds-checking.cpp

  • This file was added.
// RUN: %clang_cc1 -w -x c++ -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
// RUN: %clang_cc1 -w -x c++ -fsanitize=local-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
// RUN: %clang_cc1 -w -x c++ -fsanitize=array-bounds -O -fsanitize-trap=array-bounds -fexperimental-new-pass-manager -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s --check-prefixes=CHECK,NONLOCAL
//
// REQUIRES: x86-registered-target
// CHECK-LABEL: @_Z1f
double f(int b, int i) {
double a[b];
// CHECK: call {{.*}} @llvm.trap
return a[i];
}
// CHECK-LABEL: @_Z2f2
void f2() {
// everything is constant; no trap possible
// CHECK-NOT: call {{.*}} @llvm.trap
int a[2];
a[1] = 42;
}
// CHECK-LABEL: @_Z2f3
void f3() {
int a[1];
// CHECK: call {{.*}} @llvm.trap
a[2] = 1;
}
union U {
int a[0];
int b[1];
int c[2];
};
// CHECK-LABEL: define {{.*}} @_Z2f4
int f4(union U *u, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return u->a[i] + u->b[i];
// CHECK: }
}
// CHECK-LABEL: define {{.*}} @_Z2f5
int f5(union U *u, int i) {
// c is not a flexible array member.
// NONLOCAL: call {{.*}} @llvm.trap
return u->c[i];
// CHECK: }
}
struct S0 {
int t;
int a[0];
};
// CHECK-LABEL: define {{.*}} @_Z2S0
int S0(struct S0 *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}
struct S1 {
int t;
int a[1];
};
// CHECK-LABEL: define {{.*}} @_Z2S1
int S1(struct S1 *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}
struct S2 {
int t;
int a[2];
};
// CHECK-LABEL: define {{.*}} @_Z2S2
int S2(struct S2 *s, int i) {
// a and b are treated as flexible array members.
// NONLOCAL: call {{.*}} @llvm.trap
return s->a[i];
}
struct SFlex {
int t;
int a[];
};
// CHECK-LABEL: define {{.*}} @_Z5SFlex
int SFlex(struct SFlex *s, int i) {
// a and b are treated as flexible array members.
// CHECK-NOT: @llvm.trap
return s->a[i];
// CHECK: }
}