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| author | Laytan <laytanlaats@hotmail.com> | 2025-07-29 22:37:42 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-29 22:37:42 +0200 |
| commit | 861fa4ab68d07bc8f3827ca29946c79c7b3f744e (patch) | |
| tree | 237ac65d7e74cbe094d77f7553f3f21c30d9bbf9 /src | |
| parent | 435f7f65039751aebe0ec780621a26499ce6d639 (diff) | |
| parent | 35a95fc3e4c67dcf32462c112675699673c037f2 (diff) | |
Merge pull request #4140 from colrdavidson/macharena
Mach Process control
Diffstat (limited to 'src')
| -rw-r--r-- | src/check_builtin.cpp | 9 | ||||
| -rw-r--r-- | src/checker_builtin_procs.hpp | 3 | ||||
| -rw-r--r-- | src/llvm_backend_proc.cpp | 15 |
3 files changed, 27 insertions, 0 deletions
diff --git a/src/check_builtin.cpp b/src/check_builtin.cpp index 58fa44ec9..974224ed2 100644 --- a/src/check_builtin.cpp +++ b/src/check_builtin.cpp @@ -4713,6 +4713,15 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As } break; + case BuiltinProc_read_cycle_counter_frequency: + if (build_context.metrics.arch != TargetArch_arm64) { + error(call, "'%.*s' is only allowed on arm64 targets", LIT(builtin_name)); + return false; + } + operand->mode = Addressing_Value; + operand->type = t_i64; + break; + 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..8e135ab10 100644 --- a/src/checker_builtin_procs.hpp +++ b/src/checker_builtin_procs.hpp @@ -61,6 +61,7 @@ enum BuiltinProcId { BuiltinProc_trap, BuiltinProc_debug_trap, BuiltinProc_read_cycle_counter, + BuiltinProc_read_cycle_counter_frequency, BuiltinProc_count_ones, BuiltinProc_count_zeros, @@ -225,6 +226,7 @@ BuiltinProc__simd_end, BuiltinProc_x86_cpuid, BuiltinProc_x86_xgetbv, + // Constant type tests BuiltinProc__type_begin, @@ -421,6 +423,7 @@ gb_global BuiltinProc builtin_procs[BuiltinProc_COUNT] = { {STR_LIT("trap"), 0, false, Expr_Expr, BuiltinProcPkg_intrinsics, /*diverging*/true}, {STR_LIT("debug_trap"), 0, false, Expr_Stmt, BuiltinProcPkg_intrinsics, /*diverging*/false}, {STR_LIT("read_cycle_counter"), 0, false, Expr_Expr, BuiltinProcPkg_intrinsics}, + {STR_LIT("read_cycle_counter_frequency"), 0, false, Expr_Expr, BuiltinProcPkg_intrinsics}, {STR_LIT("count_ones"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics}, {STR_LIT("count_zeros"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics}, diff --git a/src/llvm_backend_proc.cpp b/src/llvm_backend_proc.cpp index 5c38367f1..e63c92f6f 100644 --- a/src/llvm_backend_proc.cpp +++ b/src/llvm_backend_proc.cpp @@ -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); |