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Add simd_add_sat simd_sub_sat

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gingerBill
2022-05-26 11:24:10 +01:00
parent 7ec0236fbf
commit 35502816c7
5 changed files with 51 additions and 4 deletions
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src/llvm_backend_proc.cpp
+24
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@@ -1353,6 +1353,30 @@ lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAndValue const
return res;
}
case BuiltinProc_simd_add_sat:
case BuiltinProc_simd_sub_sat:
{
arg1 = lb_build_expr(p, ce->args[1]);
char const *name = nullptr;
switch (builtin_id) {
case BuiltinProc_simd_add_sat: name = is_signed ? "llvm.sadd.sat" : "llvm.uadd.sat"; break;
case BuiltinProc_simd_sub_sat: name = is_signed ? "llvm.ssub.sat" : "llvm.usub.sat"; break;
}
LLVMTypeRef types[1] = {lb_type(p->module, arg0.type)};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s.%s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
LLVMValueRef args[2] = {};
args[0] = arg0.value;
args[1] = arg1.value;
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
return res;
}
}
GB_PANIC("Unhandled simd intrinsic: '%.*s'", LIT(builtin_procs[builtin_id].name));