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Make -fno-inline attach NoInline attribute to all functions that are not

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marked as AlwaysInline or ForceInline.

This moves us to what gcc does with -fno-inline. The attribute approach
was discussed to be better than switching to InlineAlways inliner in presence
of LTO.

llvm-svn: 199324
This commit is contained in:
Roman Divacky
2014-01-15 19:07:16 +00:00
parent 2e13b1c7f1
commit dd9bfb2c1a
2 changed files with 15 additions and 3 deletions
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11
clang/lib/CodeGen/CodeGenFunction.cpp
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@@ -509,15 +509,20 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
}
// Pass inline keyword to optimizer if it appears explicitly on any
// declaration.
if (!CGM.getCodeGenOpts().NoInline)
if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
// declaration. Also, in the case of -fno-inline attach NoInline
// attribute to all function that are not marked AlwaysInline or ForceInline.
if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
if (!CGM.getCodeGenOpts().NoInline) {
for (FunctionDecl::redecl_iterator RI = FD->redecls_begin(),
RE = FD->redecls_end(); RI != RE; ++RI)
if (RI->isInlineSpecified()) {
Fn->addFnAttr(llvm::Attribute::InlineHint);
break;
}
} else if (!FD->hasAttr<AlwaysInlineAttr>() &&
!FD->hasAttr<ForceInlineAttr>())
Fn->addFnAttr(llvm::Attribute::NoInline);
}
if (getLangOpts().OpenCL) {
// Add metadata for a kernel function.