rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

Auto merge of #142911 - mejrs:unsized, r=compiler-errors

Browse Source 
Remove support for dynamic allocas

Followup to rust-lang/rust#141811
This commit is contained in:
bors
2025-07-11 05:27:32 +00:00
parent cdac44e608 25eb3829e5
commit 855e0fe46e
16 changed files with 163 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
compiler/rustc_codegen_llvm/src/builder.rs
View File

@@ -538,16 +538,6 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
}
}
fn dynamic_alloca(&mut self, size: &'ll Value, align: Align) -> &'ll Value {
unsafe {
let alloca =
llvm::LLVMBuildArrayAlloca(self.llbuilder, self.cx().type_i8(), size, UNNAMED);
llvm::LLVMSetAlignment(alloca, align.bytes() as c_uint);
// Cast to default addrspace if necessary
llvm::LLVMBuildPointerCast(self.llbuilder, alloca, self.cx().type_ptr(), UNNAMED)
}
}
fn load(&mut self, ty: &'ll Type, ptr: &'ll Value, align: Align) -> &'ll Value {
unsafe {
let load = llvm::LLVMBuildLoad2(self.llbuilder, ty, ptr, UNNAMED);

6
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
View File

@@ -1492,12 +1492,6 @@ unsafe extern "C" {
Ty: &'a Type,
Name: *const c_char,
) -> &'a Value;
pub(crate) fn LLVMBuildArrayAlloca<'a>(
B: &Builder<'a>,
Ty: &'a Type,
Val: &'a Value,
Name: *const c_char,
) -> &'a Value;
pub(crate) fn LLVMBuildLoad2<'a>(
B: &Builder<'a>,
Ty: &'a Type,