diff options
Diffstat (limited to 'test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp')
| -rw-r--r-- | test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp b/test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp new file mode 100644 index 000000000000..e78667ce16e0 --- /dev/null +++ b/test/CodeGen/catch-alignment-assumption-attribute-assume_aligned-on-function-two-params.cpp @@ -0,0 +1,44 @@ +// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE +// RUN: %clang_cc1 -fsanitize=alignment -fno-sanitize-recover=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE +// RUN: %clang_cc1 -fsanitize=alignment -fsanitize-recover=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER +// RUN: %clang_cc1 -fsanitize=alignment -fsanitize-trap=alignment -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_alignment_assumption" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE + +// CHECK-SANITIZE-ANYRECOVER: @[[CHAR:.*]] = {{.*}} c"'char **'\00" } +// CHECK-SANITIZE-ANYRECOVER: @[[LINE_100_ALIGNMENT_ASSUMPTION:.*]] = {{.*}}, i32 100, i32 10 }, {{.*}}* @[[CHAR]] } + +char **__attribute__((assume_aligned(0x80000000, 42))) passthrough(char **x) { + // CHECK: define i8** @[[PASSTHROUGH:.*]](i8** %[[X:.*]]) + // CHECK-NEXT: entry: + // CHECK-NEXT: %[[X_ADDR:.*]] = alloca i8**, align 8 + // CHECK-NEXT: store i8** %[[X]], i8*** %[[X_ADDR]], align 8 + // CHECK-NEXT: %[[X_RELOADED:.*]] = load i8**, i8*** %[[X_ADDR]], align 8 + // CHECK-NEXT: ret i8** %[[X_RELOADED]] + // CHECK-NEXT: } + return x; +} + +char **caller(char **x) { + // CHECK: define i8** @{{.*}}(i8** %[[X:.*]]) + // CHECK-NEXT: entry: + // CHECK-NEXT: %[[X_ADDR:.*]] = alloca i8**, align 8 + // CHECK-NEXT: store i8** %[[X]], i8*** %[[X_ADDR]], align 8 + // CHECK-NEXT: %[[X_RELOADED:.*]] = load i8**, i8*** %[[X_ADDR]], align 8 + // CHECK-NEXT: %[[X_RETURNED:.*]] = call i8** @[[PASSTHROUGH]](i8** %[[X_RELOADED]]) + // CHECK-NEXT: %[[PTRINT:.*]] = ptrtoint i8** %[[X_RETURNED]] to i64 + // CHECK-NEXT: %[[OFFSETPTR:.*]] = sub i64 %[[PTRINT]], 42 + // CHECK-NEXT: %[[MASKEDPTR:.*]] = and i64 %[[OFFSETPTR]], 2147483647 + // CHECK-NEXT: %[[MASKCOND:.*]] = icmp eq i64 %[[MASKEDPTR]], 0 + // CHECK-SANITIZE-NEXT: %[[PTRINT_DUP:.*]] = ptrtoint i8** %[[X_RETURNED]] to i64, !nosanitize + // CHECK-SANITIZE-NEXT: br i1 %[[MASKCOND]], label %[[CONT:.*]], label %[[HANDLER_ALIGNMENT_ASSUMPTION:[^,]+]],{{.*}} !nosanitize + // CHECK-SANITIZE: [[HANDLER_ALIGNMENT_ASSUMPTION]]: + // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_alignment_assumption_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 2147483648, i64 42){{.*}}, !nosanitize + // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_alignment_assumption(i8* bitcast ({ {{{.*}}}, {{{.*}}}, {{{.*}}}* }* @[[LINE_100_ALIGNMENT_ASSUMPTION]] to i8*), i64 %[[PTRINT_DUP]], i64 2147483648, i64 42){{.*}}, !nosanitize + // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize + // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize + // CHECK-SANITIZE: [[CONT]]: + // CHECK-NEXT: call void @llvm.assume(i1 %[[MASKCOND]]) + // CHECK-NEXT: ret i8** %[[X_RETURNED]] + // CHECK-NEXT: } +#line 100 + return passthrough(x); +} |