25 lines
911 B
C
25 lines
911 B
C
// 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
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void foo(volatile int a) {
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// CHECK-LABEL: @foo
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// CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC:![0-9]+]]
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a = a + 1;
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a = a + 1;
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}
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void bar(volatile int a) __attribute__((optnone)) {
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// CHECK-LABEL: @bar
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// CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC2:![0-9]+]]
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// CHECK: call void @llvm.ubsantrap(i8 0){{.*}} !dbg [[LOC3:![0-9]+]]
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a = a + 1;
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a = a + 1;
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}
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// With optimisations enabled the traps are merged and need to share a debug location
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// CHECK: [[LOC]] = !DILocation(line: 0
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// With optimisations disabled the traps are not merged and retain accurate debug locations
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// CHECK: [[LOC2]] = !DILocation(line: 15, column: 9
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// CHECK: [[LOC3]] = !DILocation(line: 16, column: 9
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