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ssa - alloca all variables at the very start

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This commit is contained in:
Ginger Bill
2016-09-15 18:58:29 +01:00
parent b6cb4f4d14
commit 807256dea4
8 changed files with 240 additions and 107 deletions
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48
src/codegen/print_llvm.cpp
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@@ -387,13 +387,22 @@ void ssa_print_instr(ssaFileBuffer *f, ssaModule *m, ssaValue *value) {
ssa_fprintf(f, "%%%d = alloca ", value->id);
ssa_print_type(f, m->sizes, type);
ssa_fprintf(f, ", align %lld\n", type_align_of(m->sizes, m->allocator, type));
if (instr->Local.zero_initialized) {
ssa_fprintf(f, "\tstore ");
ssa_print_type(f, m->sizes, type);
ssa_fprintf(f, " zeroinitializer, ");
ssa_print_type(f, m->sizes, type);
ssa_fprintf(f, "* %%%d\n", value->id);
}
// if (instr->Local.zero_initialized) {
// ssa_fprintf(f, "\tstore ");
// ssa_print_type(f, m->sizes, type);
// ssa_fprintf(f, " zeroinitializer, ");
// ssa_print_type(f, m->sizes, type);
// ssa_fprintf(f, "* %%%d\n", value->id);
// }
} break;
case ssaInstr_ZeroInit: {
Type *type = type_deref(ssa_type(instr->ZeroInit.address));
ssa_fprintf(f, "\tstore ");
ssa_print_type(f, m->sizes, type);
ssa_fprintf(f, " zeroinitializer, ");
ssa_print_type(f, m->sizes, type);
ssa_fprintf(f, "* %%%d\n", instr->ZeroInit.address->id);
} break;
case ssaInstr_Store: {
@@ -745,10 +754,23 @@ void ssa_print_instr(ssaFileBuffer *f, ssaModule *m, ssaValue *value) {
void ssa_print_proc(ssaFileBuffer *f, ssaModule *m, ssaProcedure *proc) {
if (proc->body == NULL) {
ssa_fprintf(f, "declare ");
if (proc->tags & ProcTag_dll_import) {
ssa_fprintf(f, "dllimport ");
}
if (proc->tags & ProcTag_dll_export) {
ssa_fprintf(f, "dllexport ");
}
} else {
ssa_fprintf(f, "\ndefine ");
}
if (proc->tags & ProcTag_stdcall) {
ssa_fprintf(f, "cc 64 ");
}
if (proc->tags & ProcTag_fastcall) {
ssa_fprintf(f, "cc 65 ");
}
auto *proc_type = &proc->type->Proc;
if (proc_type->result_count == 0) {
@@ -773,7 +795,9 @@ void ssa_print_proc(ssaFileBuffer *f, ssaModule *m, ssaProcedure *proc) {
ssa_fprintf(f, ", ");
}
ssa_print_type(f, m->sizes, e->type);
ssa_fprintf(f, " %%%.*s", LIT(e->token.string));
if (proc->body != NULL) {
ssa_fprintf(f, " %%%.*s", LIT(e->token.string));
}
}
}
@@ -787,14 +811,20 @@ void ssa_print_proc(ssaFileBuffer *f, ssaModule *m, ssaProcedure *proc) {
ssa_fprintf(f, "noinline ");
}
// if (proc->tags & ProcTag_stdcall) {
// ssa_fprintf(f, "\"cc\"=\"64\" ");
// }
// if (proc->tags & ProcTag_fastcall) {
// ssa_fprintf(f, "\"cc\"=\"65\" ");
// }
if (proc->tags & ProcTag_foreign) {
// TODO(bill): Set calling convention
ssa_fprintf(f, "; foreign\n");
}
}
if (proc->body != NULL) {
// ssa_fprintf(f, "nounwind uwtable {\n");
ssa_fprintf(f, "{\n");
gb_for_array(i, proc->blocks) {
ssaBlock *block = proc->blocks[i];