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Remove a call to std::exit in a library. Make "Help" return

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a 0 as a default answer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208009 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2014-05-05 22:01:47 +00:00
parent 32b6099a77
commit 9edfca83f4
1 changed files with 7 additions and 5 deletions
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12
lib/MC/SubtargetFeature.cpp
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@ -142,8 +142,9 @@ static size_t getLongestEntryLength(const SubtargetFeatureKV *Table,
/// Display help for feature choices.
///
static void Help(const SubtargetFeatureKV *CPUTable, size_t CPUTableSize,
const SubtargetFeatureKV *FeatTable, size_t FeatTableSize) {
static uint64_t Help(const SubtargetFeatureKV *CPUTable, size_t CPUTableSize,
const SubtargetFeatureKV *FeatTable,
size_t FeatTableSize) {
// Determine the length of the longest CPU and Feature entries.
unsigned MaxCPULen = getLongestEntryLength(CPUTable, CPUTableSize);
unsigned MaxFeatLen = getLongestEntryLength(FeatTable, FeatTableSize);
@ -164,7 +165,8 @@ static void Help(const SubtargetFeatureKV *CPUTable, size_t CPUTableSize,
errs() << "Use +feature to enable a feature, or -feature to disable it.\n"
"For example, llc -mcpu=mycpu -mattr=+feature1,-feature2\n";
std::exit(1);
return 0;
}
//===----------------------------------------------------------------------===//
@ -275,7 +277,7 @@ uint64_t SubtargetFeatures::getFeatureBits(const StringRef CPU,
// Check if help is needed
if (CPU == "help")
Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
return Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
// Find CPU entry if CPU name is specified.
if (!CPU.empty()) {
@ -304,7 +306,7 @@ uint64_t SubtargetFeatures::getFeatureBits(const StringRef CPU,
// Check for help
if (Feature == "+help")
Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
return Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
// Find feature in table.
const SubtargetFeatureKV *FeatureEntry =