unsigned-trapv.c
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// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=unsigned-integer-overflow | FileCheck %s --check-prefix=UNSIGNED
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -ftrapv | FileCheck %s --check-prefix=TRAPV
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=unsigned-integer-overflow -ftrapv | FileCheck %s --check-prefix=BOTH
// Verify that -ftrapv and -fsanitize=unsigned-integer-overflow
// work together as expected
// UNSIGNED: @test_signed
// TRAPV: @test_signed
// BOTH: @test_signed
void test_signed() {
extern volatile int a, b, c;
// UNSIGNED: add nsw i32
// UNSIGNED-NOT: overflow
// TRAPV: sadd.with.overflow.i32
// TRAPV-NOT: ubsan
// TRAPV: llvm.trap
// BOTH: sadd.with.overflow.i32
// BOTH-NOT: ubsan
// BOTH: llvm.trap
a = b + c;
}
// UNSIGNED: @test_unsigned
// TRAPV: @test_unsigned
// BOTH: @test_unsigned
void test_unsigned() {
extern volatile unsigned x, y, z;
// UNSIGNED: uadd.with.overflow.i32
// UNSIGNED-NOT: llvm.trap
// UNSIGNED: ubsan
// TRAPV-NOT: overflow
// TRAPV-NOT: llvm.trap
// BOTH: uadd.with.overflow.i32
// BOTH: ubsan
// BOTH-NOT: llvm.trap
x = y + z;
}