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[Support] Use macro var args to allow templates within DEBUG_WITH_TYPE #117614

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Merged
merged 2 commits into from
Dec 5, 2024
Merged

[Support] Use macro var args to allow templates within DEBUG_WITH_TYPE #117614

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6c40a09
[Debug] Use macro var args to allow templates within a DEBUG_WITH_TYP…
Nov 25, 2024
6cebcaa
SWDEV-303548 - Clang format
Nov 25, 2024
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13 changes: 9 additions & 4 deletions llvm/include/llvm/Support/Debug.h
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Original file line number Diff line number Diff line change
Expand Up @@ -61,15 +61,20 @@ void setCurrentDebugTypes(const char **Types, unsigned Count);
///
/// This will emit the debug information if -debug is present, and -debug-only
/// is not specified, or is specified as "bitset".
#define DEBUG_WITH_TYPE(TYPE, X) \
do { if (::llvm::DebugFlag && ::llvm::isCurrentDebugType(TYPE)) { X; } \
#define DEBUG_WITH_TYPE(TYPE, ...) \
do { \
if (::llvm::DebugFlag && ::llvm::isCurrentDebugType(TYPE)) { \
__VA_ARGS__; \
} \
} while (false)

#else
#define isCurrentDebugType(X) (false)
#define setCurrentDebugType(X) do { (void)(X); } while (false)
#define setCurrentDebugTypes(X, N) do { (void)(X); (void)(N); } while (false)
#define DEBUG_WITH_TYPE(TYPE, X) do { } while (false)
#define DEBUG_WITH_TYPE(TYPE, ...) \
do { \
} while (false)
#endif

/// This boolean is set to true if the '-debug' command line option
Expand Down Expand Up @@ -98,7 +103,7 @@ raw_ostream &dbgs();
//
// LLVM_DEBUG(dbgs() << "Bitset contains: " << Bitset << "\n");
//
#define LLVM_DEBUG(X) DEBUG_WITH_TYPE(DEBUG_TYPE, X)
#define LLVM_DEBUG(...) DEBUG_WITH_TYPE(DEBUG_TYPE, __VA_ARGS__)

} // end namespace llvm

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20 changes: 20 additions & 0 deletions llvm/unittests/Support/DebugTest.cpp
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Expand Up @@ -7,6 +7,8 @@
//===----------------------------------------------------------------------===//

#include "llvm/Support/Debug.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"

Expand All @@ -30,4 +32,22 @@ TEST(DebugTest, Basic) {
DEBUG_WITH_TYPE("B", os2 << "B");
EXPECT_EQ("A", os2.str());
}

TEST(DebugTest, CommaInDebugBlock) {
std::string s1, s2;
raw_string_ostream os1(s1), os2(s2);
static const char *DT[] = {"A", "B"};
static const char Letters[] = {'X', 'Y', 'Z'};

llvm::DebugFlag = true;
setCurrentDebugTypes(DT, 2);
DEBUG_WITH_TYPE("A", {
SmallMapVector<int, char, 4> map;
for (int i = 0; i < 3; i++)
map[i] = Letters[i];
for (int i = 2; i >= 0; i--)
os1 << map[i];
});
EXPECT_EQ("ZYX", os1.str());
}
#endif
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