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Merge pull request #4140 from colrdavidson/macharena

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Mach Process control
This commit is contained in:
Laytan
2025-07-29 22:37:42 +02:00
committed by GitHub
parent 435f7f6503 35a95fc3e4
commit 861fa4ab68
9 changed files with 425 additions and 40 deletions
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15
src/llvm_backend_proc.cpp
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@@ -2811,6 +2811,21 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
}
return res;
}
case BuiltinProc_read_cycle_counter_frequency:
{
lbValue res = {};
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 $0, cntfrq_el0"), str_lit("=r"), has_side_effects);
GB_ASSERT(the_asm != nullptr);
res.value = LLVMBuildCall2(p->builder, func_type, the_asm, nullptr, 0, "");
}
return res;
}
case BuiltinProc_count_trailing_zeros:
return lb_emit_count_trailing_zeros(p, lb_build_expr(p, ce->args[0]), tv.type);