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Merge branch 'master' into freestanding_amd64

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This commit is contained in:
gingerBill
2022-03-14 11:02:59 +00:00
committed by GitHub
parent 410b85b5c7 f907516cbd
commit a7adb2fb6e
150 changed files with 7091 additions and 3234 deletions
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src/llvm_backend_proc.cpp
+17 -8
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@@ -1046,7 +1046,7 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
return lb_string_len(p, v);
} else if (is_type_array(t)) {
GB_PANIC("Array lengths are constant");
} else if (is_type_slice(t)) {
} else if (is_type_slice(t) || is_type_relative_slice(t)) {
return lb_slice_len(p, v);
} else if (is_type_dynamic_array(t)) {
return lb_dynamic_array_len(p, v);
@@ -1072,7 +1072,7 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
GB_PANIC("Unreachable");
} else if (is_type_array(t)) {
GB_PANIC("Array lengths are constant");
} else if (is_type_slice(t)) {
} else if (is_type_slice(t) || is_type_relative_slice(t)) {
return lb_slice_len(p, v);
} else if (is_type_dynamic_array(t)) {
return lb_dynamic_array_cap(p, v);
@@ -1406,14 +1406,23 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
case BuiltinProc_read_cycle_counter:
{
char const *name = "llvm.readcyclecounter";
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s", name);
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, nullptr, 0);
lbValue res = {};
res.value = LLVMBuildCall(p->builder, ip, nullptr, 0, "");
res.type = tv.type;
if (build_context.metrics.arch == TargetArch_arm64) {
LLVMTypeRef func_type = LLVMFunctionType(LLVMInt64TypeInContext(p->module->ctx), nullptr, 0, false);
bool has_side_effects = false;
LLVMValueRef the_asm = llvm_get_inline_asm(func_type, str_lit("mrs x9, cntvct_el0"), str_lit("=r"), has_side_effects);
GB_ASSERT(the_asm != nullptr);
res.value = LLVMBuildCall2(p->builder, func_type, the_asm, nullptr, 0, "");
} else {
char const *name = "llvm.readcyclecounter";
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s", name);
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, nullptr, 0);
res.value = LLVMBuildCall(p->builder, ip, nullptr, 0, "");
}
return res;
}