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Simply test for available locations in optimization remarks.

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When emitting optimization remarks, we test for the presence of
instruction locations by testing for a valid llvm.dbg.cu annotation.
This is slightly inefficient because we can simply ask whether the
debug location we have is known or not.

Additionally, if my current plan works, I will need to remove the
llvm.dbg.cu annotation from the IL (or prevent it from being generated)
when -Rpass is used without -g.  In those cases, we'll want to generate
line tables but we will want to prevent code generation from emitting
DWARF code for them.

Tested on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211204 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Diego Novillo 2014-06-18 18:46:58 +00:00
parent ffbd906558
commit ec2d823329
1 changed files with 1 additions and 1 deletions
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2
lib/IR/DiagnosticInfo.cpp
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@ -128,7 +128,7 @@ void DiagnosticInfoSampleProfile::print(DiagnosticPrinter &DP) const {
}
bool DiagnosticInfoOptimizationRemarkBase::isLocationAvailable() const {
return getFunction().getParent()->getNamedMetadata("llvm.dbg.cu") != nullptr;
return getDebugLoc().isUnknown() == false;
}
void DiagnosticInfoOptimizationRemarkBase::getLocation(StringRef *Filename,