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authorColin Davidson <colrdavidson@gmail.com>2025-07-29 12:21:46 -0700
committerColin Davidson <colrdavidson@gmail.com>2025-07-29 12:21:46 -0700
commit9a2e6fff481968f201e6bf6a601ab7a4e3fbef45 (patch)
tree00af92c561ffd9c6ea5548b6e117ca03cd48ac49
parentc1b3d035e4be4bdbebb397035a95e6dbc60f1bd6 (diff)
switch to read_cycle_counter_frequency from arm64_read_cycle_counter_freq, trap on invalid arch
-rw-r--r--base/intrinsics/intrinsics.odin3
-rw-r--r--core/time/tsc_darwin.odin2
-rw-r--r--core/time/tsc_linux.odin2
-rw-r--r--src/check_builtin.cpp2
-rw-r--r--src/checker_builtin_procs.hpp4
-rw-r--r--src/llvm_backend_proc.cpp16
6 files changed, 16 insertions, 13 deletions
diff --git a/base/intrinsics/intrinsics.odin b/base/intrinsics/intrinsics.odin
index 7057aba84..be75739fe 100644
--- a/base/intrinsics/intrinsics.odin
+++ b/base/intrinsics/intrinsics.odin
@@ -32,6 +32,7 @@ trap :: proc() -> ! ---
alloca :: proc(size, align: int) -> [^]u8 ---
cpu_relax :: proc() ---
read_cycle_counter :: proc() -> i64 ---
+read_cycle_counter_frequency :: proc() -> i64 ---
count_ones :: proc(x: $T) -> T where type_is_integer(T) || type_is_simd_vector(T) ---
count_zeros :: proc(x: $T) -> T where type_is_integer(T) || type_is_simd_vector(T) ---
@@ -361,8 +362,6 @@ wasm_memory_atomic_notify32 :: proc(ptr: ^u32, waiters: u32) -> (waiters_woken_u
x86_cpuid :: proc(ax, cx: u32) -> (eax, ebx, ecx, edx: u32) ---
x86_xgetbv :: proc(cx: u32) -> (eax, edx: u32) ---
-// Arm64 targets
-arm64_read_cycle_counter_frequency :: proc() -> i64 ---
// Darwin targets only
diff --git a/core/time/tsc_darwin.odin b/core/time/tsc_darwin.odin
index 55abf5868..78d5b33f8 100644
--- a/core/time/tsc_darwin.odin
+++ b/core/time/tsc_darwin.odin
@@ -8,7 +8,7 @@ _get_tsc_frequency :: proc "contextless" () -> (freq: u64, ok: bool) {
if ODIN_ARCH == .amd64 {
unix.sysctlbyname("machdep.tsc.frequency", &freq) or_return
} else if ODIN_ARCH == .arm64 {
- freq = u64(intrinsics.arm64_read_cycle_counter_frequency())
+ freq = u64(intrinsics.read_cycle_counter_frequency())
} else {
return
}
diff --git a/core/time/tsc_linux.odin b/core/time/tsc_linux.odin
index bfae79fb4..7232e0631 100644
--- a/core/time/tsc_linux.odin
+++ b/core/time/tsc_linux.odin
@@ -7,7 +7,7 @@ import linux "core:sys/linux"
_get_tsc_frequency :: proc "contextless" () -> (u64, bool) {
if ODIN_ARCH == .arm64 {
- frequency := u64(intrinsics.arm64_read_cycle_counter_frequency())
+ frequency := u64(intrinsics.read_cycle_counter_frequency())
return frequency, true
} else {
// Get the file descriptor for the perf mapping
diff --git a/src/check_builtin.cpp b/src/check_builtin.cpp
index e9da79932..66be3c69e 100644
--- a/src/check_builtin.cpp
+++ b/src/check_builtin.cpp
@@ -4713,7 +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_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 474932970..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,
@@ -225,7 +226,6 @@ BuiltinProc__simd_end,
BuiltinProc_x86_cpuid,
BuiltinProc_x86_xgetbv,
- BuiltinProc_arm64_read_cycle_counter_frequency,
// Constant type tests
@@ -423,6 +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},
@@ -586,7 +587,6 @@ 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 3f5819b43..5e38e6bdc 100644
--- a/src/llvm_backend_proc.cpp
+++ b/src/llvm_backend_proc.cpp
@@ -2809,16 +2809,20 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
}
return res;
}
- case BuiltinProc_arm64_read_cycle_counter_frequency:
+ case BuiltinProc_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, "");
+ 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, "");
+ } else {
+ GB_PANIC("Unsupported architecture: %.*s", LIT(target_arch_names[build_context.metrics.arch]));
+ }
return res;
}