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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:11:38 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:13:23 +0000 |
commit | 20431706a863f92cb37dc512fef6e48d192aaf2c (patch) | |
tree | 2867f13f5fd5437ba628c67d7f87309ccadcd286 /compiler/rustc_codegen_ssa/src/mir/place.rs | |
parent | Releasing progress-linux version 1.65.0+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.tar.xz rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.zip |
Merging upstream version 1.66.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compiler/rustc_codegen_ssa/src/mir/place.rs')
-rw-r--r-- | compiler/rustc_codegen_ssa/src/mir/place.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index 13d8f6edd..9c18df564 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -400,6 +400,21 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { downcast } + pub fn project_type<Bx: BuilderMethods<'a, 'tcx, Value = V>>( + &self, + bx: &mut Bx, + ty: Ty<'tcx>, + ) -> Self { + let mut downcast = *self; + downcast.layout = bx.cx().layout_of(ty); + + // Cast to the appropriate type. + let variant_ty = bx.cx().backend_type(downcast.layout); + downcast.llval = bx.pointercast(downcast.llval, bx.cx().type_ptr_to(variant_ty)); + + downcast + } + pub fn storage_live<Bx: BuilderMethods<'a, 'tcx, Value = V>>(&self, bx: &mut Bx) { bx.lifetime_start(self.llval, self.layout.size); } @@ -442,6 +457,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { mir::ProjectionElem::Field(ref field, _) => { cg_base.project_field(bx, field.index()) } + mir::ProjectionElem::OpaqueCast(ty) => cg_base.project_type(bx, ty), mir::ProjectionElem::Index(index) => { let index = &mir::Operand::Copy(mir::Place::from(index)); let index = self.codegen_operand(bx, index); |