6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

Implement the NoBuiltin attribute.

Browse Source 
The 'nobuiltin' attribute is applied to call sites to indicate that LLVM should
not treat the callee function as a built-in function. I.e., it shouldn't try to
replace that function with different code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175835 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2013-02-22 00:12:35 +00:00
parent a931a12e04
commit 143d46476c
10 changed files with 66 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lib/IR/Attributes.cpp
View File

@@ -171,6 +171,8 @@ std::string Attribute::getAsString(bool InAttrGrp) const {
return "nest";
if (hasAttribute(Attribute::NoAlias))
return "noalias";
if (hasAttribute(Attribute::NoBuiltin))
return "nobuiltin";
if (hasAttribute(Attribute::NoCapture))
return "nocapture";
if (hasAttribute(Attribute::NoDuplicate))
@@ -354,6 +356,8 @@ bool AttributeImpl::operator<(const AttributeImpl &AI) const {
uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
// FIXME: Remove this.
switch (Val) {
default:
llvm_unreachable("Unsupported attribute type");
case Attribute::EndAttrKinds:
llvm_unreachable("Synthetic enumerators which should never get here");
@@ -391,7 +395,6 @@ uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
case Attribute::ThreadSafety: return 1ULL << 36;
case Attribute::UninitializedChecks: return 1ULL << 37;
}
llvm_unreachable("Unsupported attribute type");
}
//===----------------------------------------------------------------------===//
@@ -1097,6 +1100,33 @@ bool AttrBuilder::operator==(const AttrBuilder &B) {
return Alignment == B.Alignment && StackAlignment == B.StackAlignment;
}
void AttrBuilder::removeFunctionOnlyAttrs() {
removeAttribute(Attribute::NoReturn)
.removeAttribute(Attribute::NoUnwind)
.removeAttribute(Attribute::ReadNone)
.removeAttribute(Attribute::ReadOnly)
.removeAttribute(Attribute::NoInline)
.removeAttribute(Attribute::AlwaysInline)
.removeAttribute(Attribute::OptimizeForSize)
.removeAttribute(Attribute::StackProtect)
.removeAttribute(Attribute::StackProtectReq)
.removeAttribute(Attribute::StackProtectStrong)
.removeAttribute(Attribute::NoRedZone)
.removeAttribute(Attribute::NoImplicitFloat)
.removeAttribute(Attribute::Naked)
.removeAttribute(Attribute::InlineHint)
.removeAttribute(Attribute::StackAlignment)
.removeAttribute(Attribute::UWTable)
.removeAttribute(Attribute::NonLazyBind)
.removeAttribute(Attribute::ReturnsTwice)
.removeAttribute(Attribute::AddressSafety)
.removeAttribute(Attribute::ThreadSafety)
.removeAttribute(Attribute::UninitializedChecks)
.removeAttribute(Attribute::MinSize)
.removeAttribute(Attribute::NoDuplicate)
.removeAttribute(Attribute::NoBuiltin);
}
AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
// FIXME: Remove this in 4.0.
if (!Val) return *this;