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Append options for floating-point commutivity when related diagnostics are produced.

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With this patch clang appends the command line options that would allow vectorization when floating-point commutativity is required. Specifically those are enabling fast-math or specifying a loop hint. 

llvm-svn: 244492
This commit is contained in:
Tyler Nowicki
2015-08-10 19:56:40 +00:00
parent f45295c366
commit 8a0925cb62
3 changed files with 35 additions and 0 deletions
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19
clang/lib/CodeGen/CodeGenAction.cpp
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@@ -256,6 +256,8 @@ namespace clang {
const llvm::DiagnosticInfoOptimizationRemarkMissed &D);
void OptimizationRemarkHandler(
const llvm::DiagnosticInfoOptimizationRemarkAnalysis &D);
void OptimizationRemarkHandler(
const llvm::DiagnosticInfoOptimizationRemarkAnalysisFPCommute &D);
void OptimizationFailureHandler(
const llvm::DiagnosticInfoOptimizationFailure &D);
};
@@ -500,6 +502,17 @@ void BackendConsumer::OptimizationRemarkHandler(
D, diag::remark_fe_backend_optimization_remark_analysis);
}
void BackendConsumer::OptimizationRemarkHandler(
const llvm::DiagnosticInfoOptimizationRemarkAnalysisFPCommute &D) {
// Optimization analysis remarks are active only if the -Rpass-analysis
// flag has a regular expression that matches the name of the pass
// name in \p D.
if (CodeGenOpts.OptimizationRemarkAnalysisPattern &&
CodeGenOpts.OptimizationRemarkAnalysisPattern->match(D.getPassName()))
EmitOptimizationMessage(
D, diag::remark_fe_backend_optimization_remark_analysis_fpcommute);
}
void BackendConsumer::OptimizationFailureHandler(
const llvm::DiagnosticInfoOptimizationFailure &D) {
EmitOptimizationMessage(D, diag::warn_fe_backend_optimization_failure);
@@ -553,6 +566,12 @@ void BackendConsumer::DiagnosticHandlerImpl(const DiagnosticInfo &DI) {
OptimizationRemarkHandler(
cast<DiagnosticInfoOptimizationRemarkAnalysis>(DI));
return;
case llvm::DK_OptimizationRemarkAnalysisFPCommute:
// Optimization remarks are always handled completely by this
// handler. There is no generic way of emitting them.
OptimizationRemarkHandler(
cast<DiagnosticInfoOptimizationRemarkAnalysisFPCommute>(DI));
return;
case llvm::DK_OptimizationFailure:
// Optimization failures are always handled completely by this
// handler.