From 3dcc22fa6d0779e35e193ba4f5fae6b919d89080 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Wed, 16 Apr 2025 10:52:35 +0100 Subject: Change hashing rules for float-like types to make `0 == -0` --- src/llvm_backend.cpp | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'src/llvm_backend.cpp') diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index ee0ea7567..083a1d90e 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -563,6 +563,53 @@ gb_internal lbValue lb_hasher_proc_for_type(lbModule *m, Type *type) { lbValue res = lb_emit_runtime_call(p, "default_hasher_string", args); lb_add_callsite_force_inline(p, res); LLVMBuildRet(p->builder, res.value); + } else if (is_type_float(type)) { + lbValue ptr = lb_emit_conv(p, data, pt); + lbValue v = lb_emit_load(p, ptr); + v = lb_emit_conv(p, v, t_f64); + + auto args = array_make(temporary_allocator(), 2); + args[0] = v; + args[1] = seed; + lbValue res = lb_emit_runtime_call(p, "default_hasher_f64", args); + lb_add_callsite_force_inline(p, res); + LLVMBuildRet(p->builder, res.value); + } else if (is_type_complex(type)) { + lbValue ptr = lb_emit_conv(p, data, pt); + lbValue xp = lb_emit_struct_ep(p, ptr, 0); + lbValue yp = lb_emit_struct_ep(p, ptr, 1); + + lbValue x = lb_emit_conv(p, lb_emit_load(p, xp), t_f64); + lbValue y = lb_emit_conv(p, lb_emit_load(p, yp), t_f64); + + auto args = array_make(temporary_allocator(), 3); + args[0] = x; + args[1] = y; + args[2] = seed; + lbValue res = lb_emit_runtime_call(p, "default_hasher_complex128", args); + lb_add_callsite_force_inline(p, res); + LLVMBuildRet(p->builder, res.value); + } else if (is_type_quaternion(type)) { + lbValue ptr = lb_emit_conv(p, data, pt); + lbValue xp = lb_emit_struct_ep(p, ptr, 0); + lbValue yp = lb_emit_struct_ep(p, ptr, 1); + lbValue zp = lb_emit_struct_ep(p, ptr, 2); + lbValue wp = lb_emit_struct_ep(p, ptr, 3); + + lbValue x = lb_emit_conv(p, lb_emit_load(p, xp), t_f64); + lbValue y = lb_emit_conv(p, lb_emit_load(p, yp), t_f64); + lbValue z = lb_emit_conv(p, lb_emit_load(p, zp), t_f64); + lbValue w = lb_emit_conv(p, lb_emit_load(p, wp), t_f64); + + auto args = array_make(temporary_allocator(), 5); + args[0] = x; + args[1] = y; + args[2] = z; + args[3] = w; + args[4] = seed; + lbValue res = lb_emit_runtime_call(p, "default_hasher_quaternion256", args); + lb_add_callsite_force_inline(p, res); + LLVMBuildRet(p->builder, res.value); } else { GB_PANIC("Unhandled type for hasher: %s", type_to_string(type)); } -- cgit v1.2.3