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delete alloca builtin function

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See #225

introduce os.EnvMap
This commit is contained in:
Andrew Kelley
2017-04-03 18:11:57 -04:00
parent c400cb429a
commit c9ae30d27e
10 changed files with 170 additions and 205 deletions
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28
src/codegen.cpp
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@@ -2190,26 +2190,6 @@ static LLVMValueRef ir_render_truncate(CodeGen *g, IrExecutable *executable, IrI
}
}
static LLVMValueRef ir_render_alloca(CodeGen *g, IrExecutable *executable, IrInstructionAlloca *instruction) {
TypeTableEntry *slice_type = get_underlying_type(instruction->base.value.type);
TypeTableEntry *ptr_type = slice_type->data.structure.fields[slice_ptr_index].type_entry;
TypeTableEntry *child_type = ptr_type->data.pointer.child_type;
LLVMValueRef size_val = ir_llvm_value(g, instruction->count);
LLVMValueRef ptr_val = LLVMBuildArrayAlloca(g->builder, child_type->type_ref, size_val, "");
// TODO in debug mode, initialize all the bytes to 0xaa
// store the freshly allocated pointer in the slice
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, instruction->tmp_ptr, slice_ptr_index, "");
LLVMBuildStore(g->builder, ptr_val, ptr_field_ptr);
// store the size in the len field
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, instruction->tmp_ptr, slice_len_index, "");
LLVMBuildStore(g->builder, size_val, len_field_ptr);
return instruction->tmp_ptr;
}
static LLVMValueRef ir_render_memset(CodeGen *g, IrExecutable *executable, IrInstructionMemset *instruction) {
LLVMValueRef dest_ptr = ir_llvm_value(g, instruction->dest_ptr);
LLVMValueRef char_val = ir_llvm_value(g, instruction->byte);
@@ -2548,7 +2528,7 @@ static LLVMValueRef ir_render_maybe_wrap(CodeGen *g, IrExecutable *executable, I
assert(instruction->tmp_ptr);
LLVMValueRef val_ptr = LLVMBuildStructGEP(g->builder, instruction->tmp_ptr, maybe_child_index, "");
assert(child_type == instruction->value->value.type);
// child_type and instruction->value->value.type may differ by constness
gen_assign_raw(g, val_ptr, payload_val, child_type);
LLVMValueRef maybe_ptr = LLVMBuildStructGEP(g->builder, instruction->tmp_ptr, maybe_null_index, "");
LLVMBuildStore(g->builder, LLVMConstAllOnes(LLVMInt1Type()), maybe_ptr);
@@ -2796,8 +2776,6 @@ static LLVMValueRef ir_render_instruction(CodeGen *g, IrExecutable *executable,
return ir_render_truncate(g, executable, (IrInstructionTruncate *)instruction);
case IrInstructionIdBoolNot:
return ir_render_bool_not(g, executable, (IrInstructionBoolNot *)instruction);
case IrInstructionIdAlloca:
return ir_render_alloca(g, executable, (IrInstructionAlloca *)instruction);
case IrInstructionIdMemset:
return ir_render_memset(g, executable, (IrInstructionMemset *)instruction);
case IrInstructionIdMemcpy:
@@ -3648,9 +3626,6 @@ static void do_code_gen(CodeGen *g) {
} else if (instruction->id == IrInstructionIdCall) {
IrInstructionCall *call_instruction = (IrInstructionCall *)instruction;
slot = &call_instruction->tmp_ptr;
} else if (instruction->id == IrInstructionIdAlloca) {
IrInstructionAlloca *alloca_instruction = (IrInstructionAlloca *)instruction;
slot = &alloca_instruction->tmp_ptr;
} else if (instruction->id == IrInstructionIdSlice) {
IrInstructionSlice *slice_instruction = (IrInstructionSlice *)instruction;
slot = &slice_instruction->tmp_ptr;
@@ -4326,7 +4301,6 @@ static void define_builtin_fns(CodeGen *g) {
create_builtin_fn(g, BuiltinFnIdCompileLog, "compileLog", SIZE_MAX);
create_builtin_fn(g, BuiltinFnIdIntType, "intType", 2);
create_builtin_fn(g, BuiltinFnIdSetDebugSafety, "setDebugSafety", 2);
create_builtin_fn(g, BuiltinFnIdAlloca, "alloca", 2);
create_builtin_fn(g, BuiltinFnIdSetGlobalAlign, "setGlobalAlign", 2);
create_builtin_fn(g, BuiltinFnIdSetGlobalSection, "setGlobalSection", 2);
create_builtin_fn(g, BuiltinFnIdSetGlobalLinkage, "setGlobalLinkage", 2);