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[StringExtras] Rename SubsequentDelim to ListSeparator

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This patch renames SubsequentDelim to ListSeparator to clarify the
purpose of the class.

Differential Revision: https://reviews.llvm.org/D94649
This commit is contained in:
Kazu Hirata 2021-01-15 21:00:55 -08:00
parent 7b3a3516a0
commit bebae30b36
3 changed files with 21 additions and 21 deletions
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12
include/llvm/ADT/StringExtras.h
View File

@ -470,22 +470,22 @@ inline std::string join_items(Sep Separator, Args &&... Items) {
/// list from a loop like so:
///
/// \code
/// SubsequentDelim SD;
/// ListSeparator SD;
/// for (auto &I : C)
/// OS << SD << I.getName();
/// \end
class SubsequentDelim {
class ListSeparator {
bool First = true;
StringRef Delim;
StringRef Separator;
public:
SubsequentDelim(StringRef Delim = ", ") : Delim(Delim) {}
public:
ListSeparator(StringRef Separator = ", ") : Separator(Separator) {}
operator StringRef() {
if (First) {
First = false;
return {};
}
return Delim;
return Separator;
}
};

16
lib/CodeGen/MachineBasicBlock.cpp
View File

@ -353,9 +353,9 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
if (Indexes) OS << '\t';
// Don't indent(2), align with previous line attributes.
OS << "; predecessors: ";
SubsequentDelim SD;
ListSeparator LS;
for (auto *Pred : predecessors())
OS << SD << printMBBReference(*Pred);
OS << LS << printMBBReference(*Pred);
OS << '\n';
HasLineAttributes = true;
}
@ -364,9 +364,9 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
if (Indexes) OS << '\t';
// Print the successors
OS.indent(2) << "successors: ";
SubsequentDelim SD;
ListSeparator LS;
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
OS << SD << printMBBReference(**I);
OS << LS << printMBBReference(**I);
if (!Probs.empty())
OS << '('
<< format("0x%08" PRIx32, getSuccProbability(I).getNumerator())
@ -375,10 +375,10 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
if (!Probs.empty() && IsStandalone) {
// Print human readable probabilities as comments.
OS << "; ";
SubsequentDelim SD;
ListSeparator LS;
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
const BranchProbability &BP = getSuccProbability(I);
OS << SD << printMBBReference(**I) << '('
OS << LS << printMBBReference(**I) << '('
<< format("%.2f%%",
rint(((double)BP.getNumerator() / BP.getDenominator()) *
100.0 * 100.0) /
@ -395,9 +395,9 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
if (Indexes) OS << '\t';
OS.indent(2) << "liveins: ";
SubsequentDelim SD;
ListSeparator LS;
for (const auto &LI : liveins()) {
OS << SD << printReg(LI.PhysReg, TRI);
OS << LS << printReg(LI.PhysReg, TRI);
if (!LI.LaneMask.all())
OS << ":0x" << PrintLaneMask(LI.LaneMask);
}

14
unittests/ADT/StringExtrasTest.cpp
View File

@ -216,16 +216,16 @@ TEST(StringExtras, IToStr) {
EXPECT_EQ(std::to_string(MaxInt64), itostr(MaxInt64));
}
TEST(StringExtras, SubsequentDelim) {
SubsequentDelim SD;
StringRef S = SD;
TEST(StringExtras, ListSeparator) {
ListSeparator LS;
StringRef S = LS;
EXPECT_EQ(S, "");
S = SD;
S = LS;
EXPECT_EQ(S, ", ");
SubsequentDelim SD2(" ");
S = SD2;
ListSeparator LS2(" ");
S = LS2;
EXPECT_EQ(S, "");
S = SD2;
S = LS2;
EXPECT_EQ(S, " ");
}