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LLVM 16: Switch to using MemoryEffects

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This commit is contained in:
Tim Neumann 2022-11-04 16:20:42 +00:00
parent 47c008e440
commit c15cfc91c4
8 changed files with 67 additions and 12 deletions
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6
compiler/rustc_codegen_llvm/src/asm.rs
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@ -285,13 +285,13 @@ impl<'ll, 'tcx> AsmBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
let mut attrs = SmallVec::<[_; 2]>::new();
if options.contains(InlineAsmOptions::PURE) {
if options.contains(InlineAsmOptions::NOMEM) {
attrs.push(llvm::AttributeKind::ReadNone.create_attr(self.cx.llcx));
attrs.push(llvm::MemoryEffects::None.create_attr(self.cx.llcx));
} else if options.contains(InlineAsmOptions::READONLY) {
attrs.push(llvm::AttributeKind::ReadOnly.create_attr(self.cx.llcx));
attrs.push(llvm::MemoryEffects::ReadOnly.create_attr(self.cx.llcx));
}
attrs.push(llvm::AttributeKind::WillReturn.create_attr(self.cx.llcx));
} else if options.contains(InlineAsmOptions::NOMEM) {
attrs.push(llvm::AttributeKind::InaccessibleMemOnly.create_attr(self.cx.llcx));
attrs.push(llvm::MemoryEffects::InaccessibleMemOnly.create_attr(self.cx.llcx));
} else {
// LLVM doesn't have an attribute to represent ReadOnly + SideEffect
}