diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/check_builtin.cpp | 1 | ||||
| -rw-r--r-- | src/checker_builtin_procs.hpp | 3 | ||||
| -rw-r--r-- | src/llvm_backend_proc.cpp | 13 |
3 files changed, 17 insertions, 0 deletions
diff --git a/src/check_builtin.cpp b/src/check_builtin.cpp index 58fa44ec9..e9da79932 100644 --- a/src/check_builtin.cpp +++ b/src/check_builtin.cpp @@ -4713,6 +4713,7 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As } break; + case BuiltinProc_arm64_read_cycle_counter_frequency: case BuiltinProc_read_cycle_counter: operand->mode = Addressing_Value; operand->type = t_i64; diff --git a/src/checker_builtin_procs.hpp b/src/checker_builtin_procs.hpp index 91cef481e..474932970 100644 --- a/src/checker_builtin_procs.hpp +++ b/src/checker_builtin_procs.hpp @@ -225,6 +225,8 @@ BuiltinProc__simd_end, BuiltinProc_x86_cpuid, BuiltinProc_x86_xgetbv, + BuiltinProc_arm64_read_cycle_counter_frequency, + // Constant type tests BuiltinProc__type_begin, @@ -584,6 +586,7 @@ gb_global BuiltinProc builtin_procs[BuiltinProc_COUNT] = { {STR_LIT("syscall_bsd"), 1, true, Expr_Expr, BuiltinProcPkg_intrinsics, false, true}, {STR_LIT("x86_cpuid"), 2, false, Expr_Expr, BuiltinProcPkg_intrinsics}, {STR_LIT("x86_xgetbv"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics}, + {STR_LIT("arm64_read_cycle_counter_frequency"), 0, false, Expr_Expr, BuiltinProcPkg_intrinsics}, {STR_LIT(""), 0, false, Expr_Stmt, BuiltinProcPkg_intrinsics}, diff --git a/src/llvm_backend_proc.cpp b/src/llvm_backend_proc.cpp index ffa434278..3f5819b43 100644 --- a/src/llvm_backend_proc.cpp +++ b/src/llvm_backend_proc.cpp @@ -2809,6 +2809,19 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu } return res; } + case BuiltinProc_arm64_read_cycle_counter_frequency: + { + lbValue res = {}; + res.type = tv.type; + + 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); |