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Rollup merge of #113523 - workingjubilee:reuse-const-inbounds-gep2, r=cuviper

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Reuse LLVMConstInBoundsGEP2

We have had LLVM 14 as our minimum for a bit now.
This commit is contained in:
Matthias Krüger 2023-07-11 00:58:15 +02:00 committed by GitHub
commit 92a101866d
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 3 additions and 14 deletions
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4
compiler/rustc_codegen_llvm/src/common.rs
View File

@ -290,7 +290,7 @@ impl<'ll, 'tcx> ConstMethods<'tcx> for CodegenCx<'ll, 'tcx> {
}
};
let llval = unsafe {
llvm::LLVMRustConstInBoundsGEP2(
llvm::LLVMConstInBoundsGEP2(
self.type_i8(),
self.const_bitcast(base_addr, self.type_i8p_ext(base_addr_space)),
&self.const_usize(offset.bytes()),
@ -320,7 +320,7 @@ impl<'ll, 'tcx> ConstMethods<'tcx> for CodegenCx<'ll, 'tcx> {
fn const_ptr_byte_offset(&self, base_addr: Self::Value, offset: abi::Size) -> Self::Value {
unsafe {
llvm::LLVMRustConstInBoundsGEP2(
llvm::LLVMConstInBoundsGEP2(
self.type_i8(),
self.const_bitcast(base_addr, self.type_i8p()),
&self.const_usize(offset.bytes()),

2
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
View File

@ -1155,7 +1155,7 @@ extern "C" {
pub fn LLVMConstVector(ScalarConstantVals: *const &Value, Size: c_uint) -> &Value;
// Constant expressions
pub fn LLVMRustConstInBoundsGEP2<'a>(
pub fn LLVMConstInBoundsGEP2<'a>(
ty: &'a Type,
ConstantVal: &'a Value,
ConstantIndices: *const &'a Value,

11
compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
View File

@ -1616,17 +1616,6 @@ extern "C" void LLVMRustSetLinkage(LLVMValueRef V,
LLVMSetLinkage(V, fromRust(RustLinkage));
}
// FIXME: replace with LLVMConstInBoundsGEP2 when bumped minimal version to llvm-14
extern "C" LLVMValueRef LLVMRustConstInBoundsGEP2(LLVMTypeRef Ty,
LLVMValueRef ConstantVal,
LLVMValueRef *ConstantIndices,
unsigned NumIndices) {
ArrayRef<Constant *> IdxList(unwrap<Constant>(ConstantIndices, NumIndices),
NumIndices);
Constant *Val = unwrap<Constant>(ConstantVal);
return wrap(ConstantExpr::getInBoundsGetElementPtr(unwrap(Ty), Val, IdxList));
}
extern "C" bool LLVMRustConstIntGetZExtValue(LLVMValueRef CV, uint64_t *value) {
auto C = unwrap<llvm::ConstantInt>(CV);
if (C->getBitWidth() > 64)