| // RUN: %clang_cc1 -emit-llvm -disable-llvm-passes -O -fsanitize=signed-integer-overflow -fsanitize-trap=signed-integer-overflow %s -o - -debug-info-kind=line-tables-only | FileCheck %s |
| |
| |
| void foo(volatile int a) { |
| // CHECK-LABEL: @foo |
| // CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC:![0-9]+]] |
| a = a + 1; |
| a = a + 1; |
| } |
| |
| void bar(volatile int a) __attribute__((optnone)) { |
| // CHECK-LABEL: @bar |
| // CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC2:![0-9]+]] |
| // CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC3:![0-9]+]] |
| a = a + 1; |
| a = a + 1; |
| } |
| |
| // With optimisations enabled the traps are merged and need to share a debug location |
| // CHECK: [[LOC]] = !DILocation(line: 0 |
| |
| // With optimisations disabled the traps are not merged and retain accurate debug locations |
| // CHECK: [[LOC2]] = !DILocation(line: 15, column: 9 |
| // CHECK: [[LOC3]] = !DILocation(line: 16, column: 9 |
