75be0482a2
Currently, clang does not emit debuginfo for the switch stmt
case value if it is an enum value. For example,
$ cat test.c
enum { AA = 1, BB = 2 };
int func1(int a) {
switch(a) {
case AA: return 10;
case BB: return 11;
default: break;
}
return 0;
}
$ llvm-dwarfdump test.o | grep AA
$
Note that gcc does emit debuginfo for the same test case.
This patch added such a support with similar implementation
to CodeGenFunction::EmitDeclRefExprDbgValue(). With this patch,
$ clang -g -c test.c
$ llvm-dwarfdump test.o | grep AA
DW_AT_name ("AA")
$
Differential Revision: https://reviews.llvm.org/D134705
31 lines
860 B
C
31 lines
860 B
C
// RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
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enum { A = 1 };
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int func1(int a) {
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switch(a) {
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case A: return 10;
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default: break;
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}
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return 0;
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}
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// CHECK: !DICompositeType(tag: DW_TAG_enumeration_type
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// CHECK-SAME: elements: [[TEST1_ENUMS:![0-9]*]]
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// CHECK: [[TEST1_ENUMS]] = !{[[TEST1_E:![0-9]*]]}
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// CHECK: [[TEST1_E]] = !DIEnumerator(name: "A", value: 1)
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// Test ImplicitCast of switch case enum value
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enum { B = 2 };
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typedef unsigned long long __t1;
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typedef __t1 __t2;
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int func2(__t2 a) {
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switch(a) {
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case B: return 10;
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default: break;
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}
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return 0;
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}
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// CHECK: !DICompositeType(tag: DW_TAG_enumeration_type
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// CHECK-SAME: elements: [[TEST2_ENUMS:![0-9]*]]
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// CHECK: [[TEST2_ENUMS]] = !{[[TEST2_E:![0-9]*]]}
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// CHECK: [[TEST2_E]] = !DIEnumerator(name: "B", value: 2)
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