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adding branch hinting to debug allocator

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kbz_8
2025-11-12 00:00:15 +01:00
parent c1ed06945e
commit d03515c335
1 changed files with 8 additions and 5 deletions
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13
src/vulkan/VulkanAllocator.zig
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@@ -11,6 +11,7 @@ const Alignment = std.mem.Alignment;
const Self = @This(); const Self = @This();
/// Global debug allocator for leaks detection purpose
pub var debug_allocator: std.heap.DebugAllocator(.{}) = .init; pub var debug_allocator: std.heap.DebugAllocator(.{}) = .init;
callbacks: ?vk.AllocationCallbacks, callbacks: ?vk.AllocationCallbacks,
@@ -27,7 +28,7 @@ pub fn init(callbacks: ?*const vk.AllocationCallbacks, scope: vk.SystemAllocatio
pub fn allocator(self: *const Self) Allocator { pub fn allocator(self: *const Self) Allocator {
if (self.callbacks != null) { if (self.callbacks != null) {
return .{ return .{
.ptr = @constCast(self), .ptr = undefined,
.vtable = &.{ .vtable = &.{
.alloc = alloc, .alloc = alloc,
.resize = resize, .resize = resize,
@@ -37,10 +38,12 @@ pub fn allocator(self: *const Self) Allocator {
}; };
} }
return if (std.process.hasEnvVarConstant(DRIVER_DEBUG_ALLOCATOR_ENV_NAME) or builtin.mode == std.builtin.OptimizeMode.Debug) if (std.process.hasEnvVarConstant(DRIVER_DEBUG_ALLOCATOR_ENV_NAME) or builtin.mode == std.builtin.OptimizeMode.Debug) {
debug_allocator.allocator() @branchHint(.unlikely);
else return debug_allocator.allocator();
std.heap.c_allocator; } else {
return std.heap.c_allocator;
}
} }
fn alloc(context: *anyopaque, len: usize, alignment: Alignment, _: usize) ?[*]u8 { fn alloc(context: *anyopaque, len: usize, alignment: Alignment, _: usize) ?[*]u8 {