bjoernager/rust
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Prepare inbounds_gep for opaque pointers

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Implement inbounds_gep using LLVMBuildInBoundsGEP2 which takes an
explicit type argument instead of deriving it from a pointer type.
This commit is contained in:
Tomasz Miąsko 2021-08-01 00:00:00 +00:00
parent 4013e094f5
commit 77e5e17231
11 changed files with 61 additions and 22 deletions
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16
compiler/rustc_codegen_llvm/src/builder.rs
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@ -544,7 +544,11 @@ impl BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
.val
.store(&mut body_bx, PlaceRef::new_sized_aligned(current, cg_elem.layout, align));
let next = body_bx.inbounds_gep(current, &[self.const_usize(1)]);
let next = body_bx.inbounds_gep(
self.backend_type(cg_elem.layout),
current,
&[self.const_usize(1)],
);
body_bx.br(header_bx.llbb());
header_bx.add_incoming_to_phi(current, next, body_bx.llbb());
@ -653,10 +657,16 @@ impl BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
}
}
fn inbounds_gep(&mut self, ptr: &'ll Value, indices: &[&'ll Value]) -> &'ll Value {
fn inbounds_gep(
&mut self,
ty: &'ll Type,
ptr: &'ll Value,
indices: &[&'ll Value],
) -> &'ll Value {
unsafe {
llvm::LLVMBuildInBoundsGEP(
llvm::LLVMBuildInBoundsGEP2(
self.llbuilder,
ty,
ptr,
indices.as_ptr(),
indices.len() as c_uint,