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authorOli Scherer <git-spam-no-reply9815368754983@oli-obk.de>2022-09-06 14:09:49 +0000
committerOli Scherer <git-spam-no-reply9815368754983@oli-obk.de>2022-09-06 14:09:49 +0000
commit9c4fb018cac37099a6e0981aa6248ee039aab42a (patch)
treec5c82f12bcb6aec035be1baa9fb104a420f50a0f /compiler/rustc_codegen_ssa/src
parenta594044533b5e309eab7ac6b71f4ba8a909af653 (diff)
downloadrust-9c4fb018cac37099a6e0981aa6248ee039aab42a.tar.gz
rust-9c4fb018cac37099a6e0981aa6248ee039aab42a.zip
Remove dead broken code from const zst handling in backends
Diffstat (limited to 'compiler/rustc_codegen_ssa/src')
-rw-r--r--compiler/rustc_codegen_ssa/src/mir/operand.rs9
-rw-r--r--compiler/rustc_codegen_ssa/src/traits/consts.rs1
2 files changed, 1 insertions, 9 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs
index c612634fce2..37b1e036247 100644
--- a/compiler/rustc_codegen_ssa/src/mir/operand.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs
@@ -72,10 +72,6 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> {
     ) -> Self {
         let layout = bx.layout_of(ty);
 
-        if layout.is_zst() {
-            return OperandRef::new_zst(bx, layout);
-        }
-
         let val = match val {
             ConstValue::Scalar(x) => {
                 let Abi::Scalar(scalar) = layout.abi else {
@@ -84,10 +80,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> {
                 let llval = bx.scalar_to_backend(x, scalar, bx.immediate_backend_type(layout));
                 OperandValue::Immediate(llval)
             }
-            ConstValue::ZeroSized => {
-                let llval = bx.zst_to_backend(bx.immediate_backend_type(layout));
-                OperandValue::Immediate(llval)
-            }
+            ConstValue::ZeroSized => return OperandRef::new_zst(bx, layout),
             ConstValue::Slice { data, start, end } => {
                 let Abi::ScalarPair(a_scalar, _) = layout.abi else {
                     bug!("from_const: invalid ScalarPair layout: {:#?}", layout);
diff --git a/compiler/rustc_codegen_ssa/src/traits/consts.rs b/compiler/rustc_codegen_ssa/src/traits/consts.rs
index 8a91d4735ba..fdc7a30e841 100644
--- a/compiler/rustc_codegen_ssa/src/traits/consts.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/consts.rs
@@ -29,7 +29,6 @@ pub trait ConstMethods<'tcx>: BackendTypes {
     fn const_data_from_alloc(&self, alloc: ConstAllocation<'tcx>) -> Self::Value;
 
     fn scalar_to_backend(&self, cv: Scalar, layout: abi::Scalar, llty: Self::Type) -> Self::Value;
-    fn zst_to_backend(&self, llty: Self::Type) -> Self::Value;
     fn from_const_alloc(
         &self,
         layout: TyAndLayout<'tcx>,