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llvm-project/clang/test/CodeGen/bounds-checking.c

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Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// RUN: %clang_cc1 -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
// RUN: %clang_cc1 -fsanitize=array-bounds -O -fsanitize-undefined-trap-on-error -emit-llvm -triple x86_64-apple-darwin10 -DNO_DYNAMIC %s -o - | FileCheck %s
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK-LABEL: @f
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
double f(int b, int i) {
double a[b];
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK: call {{.*}} @llvm.trap
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
return a[i];
}
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK-LABEL: @f2
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
void f2() {
wire -fbounds-checking to the new LLVM bounds checking pass llvm-svn: 157262
2012-05-23 01:19:45 +08:00
// everything is constant; no trap possible
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK-NOT: call {{.*}} @llvm.trap
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
int a[2];
a[1] = 42;
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
#ifndef NO_DYNAMIC
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
short *b = malloc(64);
wire -fbounds-checking to the new LLVM bounds checking pass llvm-svn: 157262
2012-05-23 01:19:45 +08:00
b[5] = *a + a[1] + 2;
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
#endif
wire -fbounds-checking to the new LLVM bounds checking pass llvm-svn: 157262
2012-05-23 01:19:45 +08:00
}
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK-LABEL: @f3
wire -fbounds-checking to the new LLVM bounds checking pass llvm-svn: 157262
2012-05-23 01:19:45 +08:00
void f3() {
int a[1];
Split -fsanitize=bounds to -fsanitize=array-bounds (for the frontend-inserted check using the ubsan runtime) and -fsanitize=local-bounds (for the middle-end check which inserts traps). Remove -fsanitize=local-bounds from -fsanitize=undefined. It does not produce useful diagnostics and has false positives (PR17635), and is not a good compromise position between UBSan's checks and ASan's checks. Map -fbounds-checking to -fsanitize=local-bounds to restore Clang's historical behavior for that flag. llvm-svn: 193205
2013-10-23 06:51:04 +08:00
// CHECK: call {{.*}} @llvm.trap
wire -fbounds-checking to the new LLVM bounds checking pass llvm-svn: 157262
2012-05-23 01:19:45 +08:00
a[2] = 1;
update calls to objectsize intrinsic to match LLVM r156473 add a test for -fbounds-checking code generation llvm-svn: 156474
2012-05-09 23:53:34 +08:00
}