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[llvm-mc] Add --no-warn flag with -W alias to disable outputting warnings while assembling.

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llvm-svn: 243338
This commit is contained in:
Colin LeMahieu 2015-07-27 22:39:14 +00:00
parent 29b3982448
commit 3f88c1dc9a
5 changed files with 14 additions and 1 deletions
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2
include/llvm/MC/MCTargetOptions.h
View File

@ -29,6 +29,7 @@ public:
bool MCRelaxAll : 1;
bool MCNoExecStack : 1;
bool MCFatalWarnings : 1;
bool MCNoWarn : 1;
bool MCSaveTempLabels : 1;
bool MCUseDwarfDirectory : 1;
bool ShowMCEncoding : 1;
@ -49,6 +50,7 @@ inline bool operator==(const MCTargetOptions &LHS, const MCTargetOptions &RHS) {
ARE_EQUAL(MCRelaxAll) &&
ARE_EQUAL(MCNoExecStack) &&
ARE_EQUAL(MCFatalWarnings) &&
ARE_EQUAL(MCNoWarn) &&
ARE_EQUAL(MCSaveTempLabels) &&
ARE_EQUAL(MCUseDwarfDirectory) &&
ARE_EQUAL(ShowMCEncoding) &&

4
include/llvm/MC/MCTargetOptionsCommandFlags.h
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@ -43,6 +43,9 @@ cl::opt<bool> ShowMCInst("asm-show-inst",
cl::opt<bool> FatalWarnings("fatal-warnings",
cl::desc("Treat warnings as errors"));
cl::opt<bool> NoWarn("no-warn", cl::desc("Suppress all warnings"));
cl::alias NoWarnW("W", cl::desc("Alias for --no-warn"), cl::aliasopt(NoWarn));
cl::opt<std::string>
ABIName("target-abi", cl::Hidden,
cl::desc("The name of the ABI to be targeted from the backend."),
@ -57,6 +60,7 @@ static inline MCTargetOptions InitMCTargetOptionsFromFlags() {
Options.ShowMCInst = ShowMCInst;
Options.ABIName = ABIName;
Options.MCFatalWarnings = FatalWarnings;
Options.MCNoWarn = NoWarn;
return Options;
}

2
lib/MC/MCParser/AsmParser.cpp
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@ -553,6 +553,8 @@ void AsmParser::Note(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges) {
}
bool AsmParser::Warning(SMLoc L, const Twine &Msg, ArrayRef<SMRange> Ranges) {
if(getTargetParser().getTargetOptions().MCNoWarn)
return false;
if (getTargetParser().getTargetOptions().MCFatalWarnings)
return Error(L, Msg, Ranges);
printMessage(L, SourceMgr::DK_Warning, Msg, Ranges);

2
lib/MC/MCTargetOptions.cpp
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@ -14,7 +14,7 @@ namespace llvm {
MCTargetOptions::MCTargetOptions()
: SanitizeAddress(false), MCRelaxAll(false), MCNoExecStack(false),
MCFatalWarnings(false), MCSaveTempLabels(false),
MCFatalWarnings(false), MCNoWarn(false), MCSaveTempLabels(false),
MCUseDwarfDirectory(false), ShowMCEncoding(false), ShowMCInst(false),
AsmVerbose(false), DwarfVersion(0), ABIName() {}

5
test/tools/llvm-mc/no_warnings.test Normal file
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@ -0,0 +1,5 @@
# RUN: llvm-mc --no-warn %s 2>&1 | FileCheck %s
# XFAIL: hexagon
# CHECK-NOT: warning:
.warning