diff options
Diffstat (limited to 'src/codegen')
| -rw-r--r-- | src/codegen/llvm.zig | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig index 692edd48c1..343e503aea 100644 --- a/src/codegen/llvm.zig +++ b/src/codegen/llvm.zig @@ -5422,21 +5422,22 @@ pub const FuncGen = struct { const bin_op = self.air.instructions.items(.data)[inst].bin_op; const dest_ptr = try self.resolveInst(bin_op.lhs); const ptr_ty = self.air.typeOf(bin_op.lhs); + const operand_ty = ptr_ty.childType(); + if (!operand_ty.isFnOrHasRuntimeBitsIgnoreComptime()) return null; // TODO Sema should emit a different instruction when the store should // possibly do the safety 0xaa bytes for undefined. const val_is_undef = if (self.air.value(bin_op.rhs)) |val| val.isUndefDeep() else false; if (val_is_undef) { - const elem_ty = ptr_ty.childType(); const target = self.dg.module.getTarget(); - const elem_size = elem_ty.abiSize(target); + const operand_size = operand_ty.abiSize(target); const u8_llvm_ty = self.context.intType(8); const ptr_u8_llvm_ty = u8_llvm_ty.pointerType(0); const dest_ptr_u8 = self.builder.buildBitCast(dest_ptr, ptr_u8_llvm_ty, ""); const fill_char = u8_llvm_ty.constInt(0xaa, .False); const dest_ptr_align = ptr_ty.ptrAlignment(target); const usize_llvm_ty = try self.dg.llvmType(Type.usize); - const len = usize_llvm_ty.constInt(elem_size, .False); + const len = usize_llvm_ty.constInt(operand_size, .False); _ = self.builder.buildMemSet(dest_ptr_u8, fill_char, len, dest_ptr_align, ptr_ty.isVolatilePtr()); if (self.dg.module.comp.bin_file.options.valgrind) { // TODO generate valgrind client request to mark byte range as undefined |