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Add elementtype attributes for llvm.arm.ldrex/strex intrinsics

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These intrinsics (and a few more, but there are the only ones
exposed by stdarch) require an elementtype attribute in LLVM 15.
This commit is contained in:
Nikita Popov 2022-07-19 15:03:39 +02:00
parent ff693dc7b8
commit f653d3ab30
3 changed files with 41 additions and 0 deletions
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22
compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
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@ -6,6 +6,7 @@
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsARM.h"
#include "llvm/IR/Mangler.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/COFFImportFile.h"
@ -300,6 +301,14 @@ extern "C" LLVMAttributeRef LLVMRustCreateStructRetAttr(LLVMContextRef C, LLVMTy
return wrap(Attribute::getWithStructRetType(*unwrap(C), unwrap(Ty)));
}
extern "C" LLVMAttributeRef LLVMRustCreateElementTypeAttr(LLVMContextRef C, LLVMTypeRef Ty) {
#if LLVM_VERSION_GE(15, 0)
return wrap(Attribute::get(*unwrap(C), Attribute::ElementType, unwrap(Ty)));
#else
report_fatal_error("Should not be needed on LLVM < 15");
#endif
}
extern "C" LLVMAttributeRef LLVMRustCreateUWTableAttr(LLVMContextRef C, bool Async) {
#if LLVM_VERSION_LT(15, 0)
return wrap(Attribute::get(*unwrap(C), Attribute::UWTable));
@ -1943,3 +1952,16 @@ extern "C" LLVMValueRef LLVMGetAggregateElement(LLVMValueRef C, unsigned Idx) {
return wrap(unwrap<Constant>(C)->getAggregateElement(Idx));
}
#endif
extern "C" int32_t LLVMRustGetElementTypeArgIndex(LLVMValueRef CallSite) {
#if LLVM_VERSION_GE(15, 0)
auto *CB = unwrap<CallBase>(CallSite);
switch (CB->getIntrinsicID()) {
case Intrinsic::arm_ldrex:
return 0;
case Intrinsic::arm_strex:
return 1;
}
#endif
return -1;
}