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ir: delete dead code

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This commit is contained in:
Andrew Kelley 2018-12-18 15:48:26 -05:00
parent f75262b79f
commit e077a44656
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GPG Key ID: 7C5F548F728501A9
3 changed files with 1 additions and 29 deletions
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1
src/all_types.hpp
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@ -605,7 +605,6 @@ enum CastOp {
CastOpFloatToInt,
CastOpBoolToInt,
CastOpResizeSlice,
CastOpBytesToSlice,
CastOpNumLitToConcrete,
CastOpErrSet,
CastOpBitCast,

26
src/codegen.cpp
View File

@ -2882,32 +2882,6 @@ static LLVMValueRef ir_render_cast(CodeGen *g, IrExecutable *executable,
gen_store_untyped(g, new_len, dest_len_ptr, 0, false);
return cast_instruction->tmp_ptr;
}
case CastOpBytesToSlice:
{
assert(cast_instruction->tmp_ptr);
assert(wanted_type->id == ZigTypeIdStruct);
assert(wanted_type->data.structure.is_slice);
assert(actual_type->id == ZigTypeIdArray);
ZigType *wanted_pointer_type = wanted_type->data.structure.fields[slice_ptr_index].type_entry;
ZigType *wanted_child_type = wanted_pointer_type->data.pointer.child_type;
size_t wanted_ptr_index = wanted_type->data.structure.fields[0].gen_index;
LLVMValueRef dest_ptr_ptr = LLVMBuildStructGEP(g->builder, cast_instruction->tmp_ptr,
(unsigned)wanted_ptr_index, "");
LLVMValueRef src_ptr_casted = LLVMBuildBitCast(g->builder, expr_val, wanted_pointer_type->type_ref, "");
gen_store_untyped(g, src_ptr_casted, dest_ptr_ptr, 0, false);
size_t wanted_len_index = wanted_type->data.structure.fields[1].gen_index;
LLVMValueRef len_ptr = LLVMBuildStructGEP(g->builder, cast_instruction->tmp_ptr,
(unsigned)wanted_len_index, "");
LLVMValueRef len_val = LLVMConstInt(g->builtin_types.entry_usize->type_ref,
actual_type->data.array.len / type_size(g, wanted_child_type), false);
gen_store_untyped(g, len_val, len_ptr, 0, false);
return cast_instruction->tmp_ptr;
}
case CastOpIntToFloat:

3
src/ir.cpp
View File

@ -9339,7 +9339,6 @@ static bool eval_const_expr_implicit_cast(IrAnalyze *ira, IrInstruction *source_
const_val->type = new_type;
break;
case CastOpResizeSlice:
case CastOpBytesToSlice:
// can't do it
zig_unreachable();
case CastOpIntToFloat:
@ -9396,7 +9395,7 @@ static IrInstruction *ir_resolve_cast(IrAnalyze *ira, IrInstruction *source_inst
ZigType *wanted_type, CastOp cast_op, bool need_alloca)
{
if ((instr_is_comptime(value) || !type_has_bits(wanted_type)) &&
cast_op != CastOpResizeSlice && cast_op != CastOpBytesToSlice)
cast_op != CastOpResizeSlice)
{
IrInstruction *result = ir_create_const(&ira->new_irb, source_instr->scope,
source_instr->source_node, wanted_type);